JPH09303069A - Automatic expansion gate door of pantograph structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open/close door bodies by supporting a push-pull chain with the base end side pulled in and out of a fixed support and with the tip side connected to a free support, by a chain support fitted to the turning center of the door bodies, and putting the push-pull chain in and out by drive mechanism. SOLUTION: A door body 1 is of rectangular panel shape made of aluminium. A door body 2 consists of an upper door body 2A of rod shape made of aluminium, for instance, and arranged on the upper edge side of the door body 1, and a lower door body 2B of rod shape made of aluminium, for instance, and arranged on the lower edge side of the door body 1. A push-pull chain 8 is enclosed in such a way that its base end side can be put in and out of a fixed support, and the tip side is connected to a free support. In addition, the push-pull chain 8 is supported by a chain support 60 fitted to the turning center of the door bodies 1, 2, and the push-pull chain 8 is put in and out by drive mechanism. The door bodies 1, 2 can thereby opened/closed automatically by expansion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic telescopic gate having a pantograph structure for opening and closing a first door body and a second door body having a pantograph structure, and in particular, it can be bent only in one direction and is extended straight. The present invention relates to a self-extending and retracting gate having a pantograph structure that automatically expands and closes a first door body and a second door body having a pantograph structure by using a push-pull chain that supports a tensile force and a compressive force in a closed state. .

[0002]

2. Description of the Related Art An outline of a retractable gate having a pantograph structure will be described below with reference to FIG. In this example, a retractable gate with a pantograph structure that opens and closes on one side will be described. In the figure, 1 and 2 are, for example, a first door body and a second door body made of aluminum. One end of the first door body 1 and one end of the second door body 2 are V-shaped when viewed from above on a fixed support column 3 which is vertically fixed from the installation surface by a rotating shaft 6 (small black circle in the figure). The fixed end member A is configured so as to be openably and closably rotatable. Further, one end of the first door body 1 and one end of the second door body 2 are freely attached to the free support column 4 by a rotation shaft 6 (small black circle in the figure) so as to be openable and closable in a V-shape when viewed from above. The end member B is configured. Furthermore, the center of the first door 1 and the second
The center of the door body 2 is attached by a rotating shaft 6 (small black circle in the drawing) to be openable and closable in an X shape when viewed from a plane to form an intermediate member C. The other end of the first door body 1 and the other end of the second door body 2 of the fixed end member A described above, and both ends of the first door body 1 and both ends of the second door body 2 of the plurality of sets of intermediate members C described above. And the other end of the first door body 1 and the other end of the second door body 2 of the above-mentioned free end member B are openable and closable with respect to each other by the rotation shaft 7 (small white circle in the figure) and continuously. It is attached to form an expandable gate with a pantograph structure. The lengths of the first door body 1 and the second door body 2 of the above-mentioned fixed end member A and the first door body 1 and the second door body 2 of the above-mentioned free end member B when viewed from the plane are as described above. It is about a half of the length of the first member 1 and the second member 2 of the intermediate member C when viewed from the plane. Further, in the figure, reference numeral 5 is a door-stop column which is fixedly erected vertically from the installation surface so as to be separated from the above-mentioned fixed column 1.

Next, the expansion / contraction operation will be described. First, in the state shown in FIG. 11 (A), the first door body 1 and the second door body 2 extend substantially linearly, and the free support column 4 abuts on the door stop support column 5, so that the fixed support column 3 and the door are connected. It is in a state in which a space between the contact column 5 is closed by the first door body 1 and the second door body 2. In this closed state, when the free support column 4 is moved in the direction of the solid line arrow in FIG. 11, the linear first door body 1 and the second linear door body 2 are moved.
After the door body 2 is in the V-shaped or X-shaped state shown in FIG. 11 (B), it is folded and shortened as shown in FIG. 11 (C) so that the space between the fixed support column 3 and the door stop support column 5 is reduced. It will be released. Then, in this open state, the free column 4 is shown in FIG.
When the first door body 1 and the second door body 2 that have been folded are moved in the direction of the broken line arrow in 1 through the state of V-shape or X-shape shown in FIG. As shown in A), the first support 1 and the second support 2 extend between the fixed support 3 and the door support 5 with the free support 4 abutting the door support 5 and extending substantially linearly. Is blocked by. An example of the retractable gate having the pantograph structure described above is, for example, Japanese Patent Laid-Open No.
There is one described in Japanese Patent Publication No. 1-92287.

[0004]

However, the above-mentioned telescopic gate having the pantograph structure is for manually telescopically opening and closing the first door body 1 and the second door body 2.

An object of the present invention is to automatically provide a first door body and a second door body.
An object of the present invention is to provide an automatic telescopic gate having a pantograph structure for opening and closing the door.

[0006]

According to the present invention, in order to solve the above problems, the base end side of a push-pull chain is housed in a fixed column so that the push-pull chain can be taken in and out, and the tip side of the push-pull chain is connected to a free column. The first of the intermediate members
A chain support is attached to the center of opening / closing rotation of the door body and the second door body, and the push-pull chain is supported by the chain support. By moving the push-pull chain in and out by the drive mechanism, the first door body and the second door body The door is characterized by expanding and contracting to open and close.

As a result, in the automatic expansion / contraction type gate of the pantograph structure of the present invention, the push-pull chain is pulled in and out by driving the drive mechanism, and accordingly, the first door body and the second door body are automatically expanded and contracted. Open and close.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an automatic telescopic gate having a pantograph structure according to the present invention will be described below with reference to FIGS. 1 to 10. In this example, a retractable gate with a pantograph structure that opens and closes on one side will be described. In the figure, the same reference numerals as those in FIG.

The first door 1 has a rectangular panel shape made of aluminum, for example. On the other hand, the second door body 2 is arranged on the upper side of the first door body 1, for example, an upper second door body 2A in the shape of a rod made of aluminum, and the second door body 2 is arranged on the lower side of the first door body 1, for example. The lower second door body 2B is made of aluminum and has a rod shape.

One end 10 of both upper and lower sides of the first door body 1, one end 20 of the upper second door body 2A and one end 20 of the lower second door body 2B.
And are rotatably attached to the fixed support column 3 which is vertically fixed from the installation surface G by the rotating shaft 6 so as to be openable and closable in a V shape when seen from a plane, thereby forming the fixed end member A. Further, one end 10 of both upper and lower sides of the first door body 1, one end 20 of the upper second door body 2A, and one end 20 of the lower second door body 2B are V-shaped when viewed from a plane on the free support column 4 by the rotating shaft 6. The free end member B is configured by being attached in a shape such that it can be opened and closed and rotated. further,
The center of both upper and lower sides of the first door body 1, the center of the upper second door body 2 and the center of the lower second door body 2B are attached by a rotation shaft 6 so as to be openable and closable in an X shape when viewed from a plane. And an intermediate member C is configured.

The other end 10 of both the upper and lower sides of the first door body 1 of the fixed end member A and the other end 20 of the upper and lower second door bodies 2A, 2B.
And both ends 10 of both upper and lower sides of the first door body 1 of the plurality of sets of the intermediate members C and both ends 20 of the upper and lower second door bodies 2A and 2B,
The other ends 10 of the upper and lower sides of the first door body 1 of the free end member B described above.
And the other ends 20 of the upper and lower second door bodies 2A and 2B,
Thus, the expandable and retractable gate having a pantograph structure is configured by being openably and closably rotatable and continuously attached to each other. It is to be noted that the first door body 1 and the upper and lower second door bodies 2A and 2B of the fixed end member A and the first door body 1 and the upper and lower second door bodies 2A and 2B of the above free end member B are viewed from the plane. The length is about one half of the length of the above-mentioned intermediate member C as viewed from the plane of the first door body 1 and the upper and lower second door bodies 2A, 2B.

Both ends (both left and right sides) 10 of the upper and lower sides of the first door body 1 mentioned above alternately project in the longitudinal direction of the upper and lower sides of the first door body 1. In addition, the left and right ends 20 of the second door body 2 described above alternately project in the longitudinal direction of the second door body 2. Due to the offset of both upper and lower sides (left and right sides) 10 of the first door body 1 and the left and right ends 20 of the second door body 2, both upper and lower sides (left and right sides) 10 of the first door body 1 are offset.
When the first door body 1 and the second door body 2 are linearly extended as shown in FIG. It is configured so that it does not get in the way when folded as shown in.

In the figure, 8 is a push-pull chain. In this push-pull chain 8, outer and inner plates are alternately connected to both ends of a plurality of pins, and rollers are fitted onto the plurality of pins so as to be rotatable between two rows of inner plates. It is capable of bending only in one direction and supports tensile force and compressive force in a state where it is straightened. A base end side of the push-pull chain 8 is housed in the fixed support column 3 so as to be able to be taken in and out via a guide, and a tip end side of the push-pull chain 8 is connected and fixed to the free support column 4.

The push-pull chain 8 described above includes a chain support 60 provided on the pivot shaft 6 around the opening and closing pivot of the first door body 1 and the lower second door body 2B, and an auxiliary chain support described later. It is movably supported by 61 and. It should be noted that the push-pull chain 8 may be provided at least on the rotary shaft 6 which is the center of the open / close rotation of the first door body 1 and the lower second door body 2B of the intermediate member C.

A drive mechanism 80 such as a sprocket and a drive motor is built in the fixed support column 3 described above. The drive mechanism 80 causes the push-pull chain 8 to be taken in and out, and the first door body 1 and the second door body 2 to be expanded and contracted to be opened and closed.

A bellows-shaped tube cover 81 which can expand and contract is installed between the chain support 60 and the auxiliary chain support 61. The above-mentioned push-pull chain 8 penetrates through the tube cover 81 so that it can travel.

In the figure, 91 and 92 are a first link and a second link. The rotation axis is at the midpoint of a line segment that connects the opening / closing rotation center (rotation axis 6) on the lower side of the first door body 1 where both ends of the first link 91 are adjacent to each other and the left and right ends 10 on the lower side. Each of them is rotatably attached by means of 9. Further, each of the second links 92 is turned by the turning shaft 9 to a midpoint of a line segment connecting the opening / closing turning center (the turning shaft 6) of the lower second door body 2B and the left and right ends 20, which are adjacent to each other. It is movably attached. The center of the first link 91 and the center of the second link 92 are attached by a rotating shaft 62 so as to be openable and closable in an X-shape when viewed from a plane. A rotation shaft 62 around the opening / closing rotation of the first link 91 and the second link 92.
Is provided with an auxiliary chain support 61 that supports the push-pull chain 8 described above.

The first link and the second link described above are rotatably attached in an X-shape.
As shown in 0, it may be rotatably attached in a V shape. That is, one end of the first link 910 is rotatably attached to the midpoint of a line segment connecting the opening / closing rotation center on the lower side of the first door body 1 and the end portion, and one end of the second link 920 is attached. The lower second door body 2B is rotatably attached to a midpoint of a line segment that connects the opening / closing rotation center of the lower second door body 2B and the end portion, and is connected to the above-described chain support 60 (of the first door body 1 and the second door body 2). The other end of the first link 910 and the other end of the second link 920 can be opened and closed in a V shape when viewed from above by the rotation shaft 62 in the middle between the rotation shafts 6) during the opening and closing rotation. The auxiliary chain support 61 is provided on the rotating shaft 62. The above-mentioned V-shaped first link 910
The second link 920 has four types as shown in FIG. 10, but only one type may be used, or two types, three types, and four types may be mixed and used.

As shown in FIG. 4, the above-mentioned chain support 60 and auxiliary chain support 61 are made of, for example, aluminum and are formed by joining pieces divided in two in the directions of the rotary shafts 6 and 62. The chain support 60 and the auxiliary chain support 61 include a b-shaped support portion 63 that is supported so that the push-pull chain 8 can travel through,
The bearing recesses 64 are integrally provided above and below the support portion 63. In the bearing recesses 64 of the chain support 60 and the auxiliary chain support 61, the rotation shafts 6 of the first door body 1 and the lower second door body 2B and the rotations of the first link 91 and the second link 92 described above are rotated. The moving shaft 62 is rotatably fitted in each. Further, the spherical edge of the end portion of the tube cover 81 is connected to the support portions 61 of the chain support 60 and the auxiliary chain support 61 by a connecting member 65.

A guide rail 50 is laid on the above-mentioned installation surface G in a linear direction connecting a plurality of opening / closing rotation centers (rotation shafts 6) of the first door body 1 and the second door body 2 described above. There is. on the other hand,
A guide roller 51 is rotatably attached to the lower end of the free support column 4 and at the center of opening / closing rotation (rotation shaft 6) of the first door body 1 and the second door body 2 described above. . The guide roller 51 is engaged with the guide rail 50. As a result, when the first door body 1 and the second door body 2 of the pantograph structure are expanded and contracted and opened, the opening and closing center of rotation of the first door body 1 and the second door body 2 is reliably moved forward and backward. To do. The guide roller 51 may be attached to a position other than the center of the opening / closing rotation of the first door body 1 and the second door body 2 at the lower end of the free support column 4 described above.
In this case, the straightness of the center of the opening / closing rotation of the first door body 1 and the second door body 2 is further ensured.

The caster wheel 9 running on the installation surface G is provided at the staggered ends 20 of the adjacent lower second door bodies 2 described above.
0 is attached via a mounting plate. Four caster wheels 90 are attached in this example. The above-mentioned free support column 4 is provided with a handle 40).

Next, the operation operation of the automatic telescopic gate having the pantograph structure having the above-mentioned structure will be described. First, when a switch or a remote control switch (not shown) is operated to open, the drive motor of the drive mechanism 80 is driven to rotate the sprocket, and the push-pull chain 8 is drawn into the fixed column 3. Along with this,
The free support column 4 moves in the direction of the solid arrow in FIG. 11, and the first door body 1 and the second door body 2 in the linear state shown in FIGS. 5 and 11 (A) are shown in FIGS. 6 and 11 (B). After the state of V-shape or X-shape shown, it is folded and shortened as shown in FIGS. 7 and 11 (C), and the space between the fixed support column 3 and the door stop support column 5 is opened.

On the other hand, when a closing operation is performed by a switch (not shown) or a remote control switch, the drive mechanism 8
The drive motor of 0 drives to rotate the sprocket, and the push-pull chain 8 is pushed out from the fixed column 3. Along with this, the free support column 4 moves in the direction of the broken line arrow in FIG. 11, and the first door body 1 and the second door body 2 in the folded state shown in FIG. 7 and FIG. 6 and FIG. 11 (B)
After the V-shaped or X-shaped state shown in FIG. 5, the free support column 4 extends substantially linearly as shown in FIG. 5 and FIG. The first door body 1 and the second door body 2 close the space between the door stop strut 5 and the door stop strut 5.

As described above, in the automatic telescopic gate having the pantograph structure according to the present invention in this embodiment, the push-pull chain 8 is automatically moved in and out by the drive mechanism 80, whereby the first door body 1 and the second door are automatically operated. The body 2 expands and contracts to open and close.

In particular, in this embodiment, a chain support 60 is provided on the rotary shaft 6 around the opening / closing rotation center of the first door body 1 and the lower second door body 2B, and this chain support is also provided. At approximately the midpoint of 60, the first link 9
An auxiliary chain support 61 is provided on a rotation shaft 62 (this rotation shaft 62 is located at a substantially intermediate point of the above-described rotation shaft 6) around the opening / closing rotation center of the first and second links 92.
As a result, when the length of the first door body 1 and the second door body 2 when viewed from the plane is about 400 mm, as shown in FIG.
Expansion width L of the door body 1 and the second door body 2 is about 40 to 400 mm
However, the expansion / contraction width L'between the chain support 60 at the opening / closing center of the first door 1 and the lower second door 2B and the auxiliary chain support 61 in the middle is about 20 to 20.
Since it is 0 mm, the push-pull chain 8 can be reliably supported so that it can be moved in and out, and the first door body 1
And the 2nd door 2 can be automatically expanded-contracted and opened and closed.

Further, in this embodiment, the guide rail 50 is laid in a straight line on the installation surface G, and the guide roller 51 is attached to the lower end of the free support column 4, and the guide roller 51 is engaged with the guide rail 50. Therefore, the first door body 1 and the second door body 2 having the pantograph structure are surely expanded / contracted in the linear direction.

In the above example, the one-sided opening / closing type pantograph-structured automatic expansion / contraction type gate may be used.

Further, in the above-mentioned embodiment, the second door body 2 has a panel shape and an upper second door body 2A having a rod shape arranged on the upper side of the first door body 1 having a panel shape. It is composed of a rod-shaped lower second door body 2B arranged on the lower side of the formed first door body 1. For example, as described in JP-A-61-92287, the first door is formed. The horizontal rails of the body and the horizontal rails of the second door body are alternately arranged vertically, and both ends of the horizontal rails of the first door body and both ends of the horizontal rails of the second door body are connected by vertical columns. The 1st door body and the 2nd door body may be attached so that opening and closing rotation is possible.

[0029]

EFFECTS OF THE INVENTION As is apparent from the above, in the automatic telescopic gate of the pantograph structure of the present invention, the push-pull chain is moved in and out by driving the drive mechanism, and the first and second door bodies and the second door are accompanied thereby. The body automatically expands and contracts.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing an embodiment of an automatic telescopic type gate having a pantograph structure of the present invention.

FIG. 2 is a front view of a closed state.

FIG. 3 is an enlarged front view of a portion III in FIG.

FIG. 4 is an enlarged front view of section IV in FIG.

FIG. 5 is a schematic partial plan view of a closed state.

FIG. 6 is a schematic partial plan view of an opened / closed state.

FIG. 7 is a schematic partial plan view of a released state.

FIG. 8 is an enlarged front view of a portion VIII in FIG.

9 is a view on arrow IX in FIG.

FIG. 10 is a schematic partial plan view of an opened / closed state showing a modified example of the first link and the second link.

11A is a schematic plan view showing a closed state of a pantograph-structured self-expanding gate, FIG. 11B is a schematic plan view showing the same open / closed state, and FIG. 11C is a schematic showing the released state. It is a top view.

[Explanation of symbols]

A ... Fixed end member, B ... Free end member, C ... Intermediate member, G ...
Installation surface, 1 ... First door, 10 ... Both ends of upper and lower sides (left and right sides), 2 ... Second door, 2A ... Upper second door, 2B ... Lower second
Door body, 20 ... Left and right ends, 3 ... Fixed support, 4 ... Free support,
40 ... Handle, 5 ... Door support pillar, 50 ... Guide rail, 5
1 ... Guide roller, 6, 62, 7, 9 ... Rotating shaft, 60 ...
Chain support, 61 ... Auxiliary chain support, 63
... Support portion, 64 ... Bearing recess, 65 ... Connecting member, 8 ...
Push-pull chain, 80 ... Drive mechanism, 81 ... Tube cover, 90 ... Castor wheel, 91, 910 ... First link, 92, 920 ... Second link.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Ide Miyata-mura, Miyanomura, Nagano Prefecture, 1972 Toyo Exterior Co., Ltd.

Claims (7)

[Claims] 1. A fixed end member in which a first door body and a second door body are rotatably mounted in a V-shape when viewed from a plane on a fixed strut, and a first door body and a first door body on a free strut. A free end member in which two door bodies are attached so as to be openable and closable in a V shape when viewed from a plane, and a first door body and a second door body can be opened and closed in an X shape when viewed from a plane. A first door body and a second door body of the fixed end member, a first door body and a second door body of the plurality of sets of intermediate members, and the free end member. Self-expanding gate having a pantograph structure in which the first door body and the second door body are continuously and rotatably attached to each other and are continuously attached, and the first door body and the second door body are expanded and contracted to open and close. In the above-mentioned push-type push-fit, the base end side is housed in the fixed strut so that it can be taken in and out, and the tip end side is connected to the free strut. A chain support, a chain support attached to the center of opening and closing of the first door body and the second door body of the intermediate member, and supporting the push-pull chain; An automatic telescopic gate having a pantograph structure, comprising: a drive mechanism for expanding and contracting a door body and a second door body to open and close. 2. The first door body has a panel shape, the second door body has a rod-shaped upper second door body arranged on an upper side of the first door body, and the first door. A rod-shaped lower second door body disposed on the lower side of the body, and the chain support is attached to the center of opening / closing of the first door body and the lower second door body of the intermediate member. The automatic telescopic gate having a pantograph structure according to claim 1. 3. A first link, both ends of which are rotatably attached to a midpoint of a line segment connecting an opening / closing rotation center and an end portion of the adjacent first door bodies, and the adjacent second door. A second link, both ends of which are rotatably attached to a midpoint of a line segment connecting the center of opening / closing of the body and the end, and the second link rotatably attached in an X shape when viewed from a plane. The automatic extension / contraction of the pantograph structure according to claim 1, further comprising: an auxiliary chain support attached to a center of opening / closing rotation of the first link and the second link to support the push-pull chain. Ceremony gate. 4. The first link is rotatably attached to the midpoint of a line segment that connects the end and the opening / closing center of rotation on the lower side of the first door body whose both ends are adjacent to each other. The second link is rotatably attached at both ends to a midpoint of a line segment that connects the opening / closing rotation center and the end of the lower second door body having both ends adjacent to each other. The support is attached to an opening / closing rotation center of the first link and the second link which are attached to be openable / closable in an X shape when viewed from a plane, and supports the push-pull chain. The automatic expansion and contraction gate having a pantograph structure according to claim 3. 5. A first member having one end rotatably attached to a midpoint of a line segment connecting an opening / closing center of rotation and an end portion of the first door body.
A link; and a second link whose one end is rotatably attached to a midpoint of a line segment that connects the center of opening and closing of the second door and the end, and opens and closes in a V shape when viewed from above. An auxiliary chain support that is attached to the other end of the first link and the other end of the second link that are movably attached and that is opened and closed and that supports the push-pull chain. An automatic telescopic gate having a pantograph structure according to claim 1. 6. One end of the first link is rotatably attached to a midpoint of a line segment connecting an end of the opening / closing rotation on the lower side of the first door body and the second link. Has one end rotatably attached to a midpoint of a line segment connecting an opening / closing rotation center of the lower second door body and an end portion, and the other end of the first link and the other end of the second link. Is attached so as to be openable and closable in a V shape when viewed from above, and the auxiliary chain support is connected to the other end of the first link that is attached so as to be opened and closed in a V shape when viewed from above. The self-expanding gate with a pantograph structure according to claim 5, which is attached to a center of opening and closing of the other end of the second link and supports the push-pull chain. 7. A guide rail laid in a linear direction connecting a plurality of opening / closing rotation centers of the first door body and the second door body, and at least the first door body and the second door body. A guide roller attached to one opening / closing center of rotation and engaged with the guide rail, comprising:
Alternatively, the automatic expansion and contraction gate having the pantograph structure according to 5 or 6 is provided.