JP2000291355A - Link device for expansible door, and accordion curtain for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a housing space by rotatably connecting a lengthwise directional intermediate part and both end parts of a large number of continuously connecting sash bars, and layering/folding up a door in the thickness direction by expansibly forming an expansible link in a pantograph shape. SOLUTION: First connecting holes are formed in a lengthwise directional central part of continuously connecting sash bars 3, and second/third connecting holes are formed in upper/lower tip parts. The first connecting holes of the two continuously connecting sash bars 3 are put together to be rotatably connected by rivets 8a. Respective sets of continuously connecting sash bars 3 connected by the rivets 8a are rotatably connected by adjacent sets of rivets 8b, 8c to constitute an expansible link 9. The expansible link 9 can be expanded in a pantograph shape up to a folded-up state so as to be layered from a maximally extended state. Two sets of expansible links 9 are connected between both end part frame members and an intermediate frame member to constitute an expansible door. Thus, the door is opened/closed by expanding the expansible link 9 so that a space is sufficiently reduced by folding up the door.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a link device used for a telescopic accordion curtain or a gate.

[0002]

2. Description of the Related Art In an accordion curtain, a curtain material is attached to a telescopic link device so as to cover the link device. Then, by extending such a link device between the wall surfaces, the indoor space can be appropriately partitioned, and when folded toward one wall surface, the indoor space can be opened.

The above-mentioned link device is also used as a gate which can be extended and contracted.
No. 53-14341 and No. 55-879.
Japanese Patent Publication No. 98 proposes a gate capable of saving storage space at the time of folding.

[0004]

Problems to be Solved by the Invention
In the gate described in Japanese Patent Publication No. 94, a plurality of movable frames and a connecting member for connecting the respective movable frames are folded on the same plane. However, when the opening / closing stroke of the gate becomes longer, the number of movable frames increases. Since the maximum value of the movable frame becomes large, a large storage space is required in the direction perpendicular to the direction in which the gate is stored during storage.

In the gate disclosed in Japanese Utility Model Laid-Open Publication No. 53-14341, since the vertical plate and the connecting member are folded in a state of being stacked in the storage direction, if the opening / closing stroke of the gate becomes longer, the gate is moved in the storage direction of the gate. Large storage space is required.

In the gate disclosed in Japanese Utility Model Laid-Open Publication No. 55-87998, since the bars that expand and contract in a pantograph shape are folded in a state of being stacked in the storage direction, if the opening / closing stroke of the gate becomes longer, the storage direction of the gate may be reduced. Requires a large storage space.

An object of the present invention is to provide a telescopic door link device capable of reducing a storage space.

[0008]

According to the first aspect of the present invention, a plurality of connecting members are rotatably connected at their longitudinal middle portions and both end portions to form a telescopic link which can be expanded and contracted in a pantograph shape.
The telescopic link can be folded in a state of being stacked in the thickness direction of the connecting member.

According to a second aspect of the present invention, the connecting member is formed of a plate material and has a shape slid in a plate thickness direction at an intermediate portion in a longitudinal direction of the connecting member. It can be folded in a state of being stacked with a thickness equivalent to the product.

According to a third aspect of the present invention, a pair of connecting members connected to each other at an intermediate portion in the longitudinal direction are provided with a rotation restricting portion for setting a maximum included angle of the connecting members. According to a fourth aspect, the connecting members located at both ends of the telescopic link according to any one of the first to third aspects are connected to the end frame so as to be rotatable and movable in the up-and-down direction. The frame can be moved with respect to the other end frame.

According to a fifth aspect, the connecting members located at both ends of the telescopic link according to any one of the first to third aspects are connected to the end frame so as to be rotatable and vertically movable,
One end frame was movable with respect to the other end frame, and a curtain material covering the expandable link was attached between the end frames.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a telescopic door shown in FIGS. 1 and 2, a number of connecting members 3 are extendably connected between end frames 1a, 1b on both sides and an intermediate frame 2. FIG. .

As shown in FIG. 3, the connecting member 3 is formed of a metal plate, and has a first connecting hole 4a formed in a central portion in a longitudinal direction thereof.
A first connecting piece 5a extending to one side and a second connecting piece 5b extending to the other side are formed.

The first connecting piece 5a and the second connecting piece 5b
Is formed by sliding in the thickness direction by the thickness of the plate, a second connecting hole 4b is formed at the distal end of the first connecting piece 5a, and a third connecting hole 4b is formed at the distal end of the second connecting piece 5b. Connection hole 4
c is formed.

On one side of the first connecting piece 5a, an oblique side 6 is formed from an intermediate portion to a base end so as to gradually reduce the width of the first connecting piece 5a. Piece 5b
In the base end portion, a contact side 7 is formed on one side of the first connection hole 4a, which slightly projects from the first connection hole 4a toward the first connecting piece 5a.

The first connecting holes 4 of the two connecting members 3
The rivet 8a is driven into the first connection hole 4a in a state where the position of a is adjusted and the first connecting piece 5a and the second connecting piece 5b are overlapped so as to be located on the same plane.

Therefore, the two sheets 1 connected by the rivet 8a
The connecting members 3 of the set are rotatably connected to each other about a rivet 8a, and as shown in FIG. 4, the oblique side 6 of one connecting member 3 and the contact side 7 of the other connecting member 3 rotate. The contact angle as the restricting portion becomes the maximum included angle, and as shown in FIG. 5, it can be rotated to a state where it overlaps with each other.

As shown in FIG. 6, the connecting members 3 of each set connected by the rivets 8a are connected to the second connecting holes 4b of the first connecting piece 5a and the first connecting pieces 5a of the adjacent set. The second connecting hole 4b is rotatably connected with the rivet 8b, and the third connecting hole 4c of the second connecting piece 5b and the third connecting hole of the second connecting piece 5b of the adjacent set are connected. 4c is rotatably connected with a rivet 8c.

A plurality of connecting members 3 connected by the rivets 8b and 8c constitute an extendable link 9, and the extendable link 9 is extended from the maximum as shown in FIG. As shown, it can be expanded and contracted in a pantograph shape in a range up to the state of being folded so as to be stacked.

As shown in FIG. 1 and FIG.
Two sets of telescopic links 9 are vertically connected between a and the intermediate frame 2. That is, the ends of the first and second connecting pieces 5a and 5b located at the ends of the telescopic links 9 correspond to the end frames 1a.
And one side surface of the intermediate frame 2 so as to be rotatable and vertically movable. An extendable link 9 is similarly connected between one side surface of the intermediate frame 2 and the end frame 1b.

The end frame 1a is fixed to a wall surface or the like, and a handle 10 is attached to the end frame 1b. And
A caster 11 is attached to the lower end of the end frame 1b and the intermediate frame 2.

In the telescopic door constructed as described above, when the end frame 1b is moved to the intermediate frame 2 by operating the end frame 1b,
The telescopic link 9 between the end frame 1b and the intermediate frame 2 was compressed, and as shown in FIGS. 8 and 9, the telescopic link 9 between the end frame 1b and the intermediate frame 2 was eventually laminated. State.

Next, when the end frame 1b is moved toward the end frame 1a, the intermediate frame 2 moves integrally with the end frame 1b, and the telescopic link between the intermediate frame 2 and the end frame 1a. 9 is compressed, and as shown in FIGS. 10 and 11, the telescopic link 9 between the end frame 1 a and the intermediate frame 2 is eventually stacked.

In this state, each telescopic link 9 is connected to the end frame 1
a and 1b are folded in a stacked state. Also, if the end frame 1b is pulled out in a direction away from the end frame 1a, the telescopic link 9 is expanded, and the state shown in FIGS. 1 and 2 is obtained.

With the telescopic door as described above, the following operational effects can be obtained. (1) The telescopic link 9 is operated by operating the end frame 1b.
Can be opened and closed to open and close the door.

(2) When the telescopic link 9 is folded, the connecting members 3 constituting the telescopic link 9 are folded in a state of being stacked on both sides of the intermediate frame 2, and the end frame 1 a is sandwiched between the connecting members 3. , 1b are folded. Therefore, the folding space only needs to have an area corresponding to the cross-sectional area of the end frames 1a and 1b, the intermediate frame 2 and the laminated connecting members 3, so that the folding space can be sufficiently reduced.

(3) Even if the number of connecting members 3 is increased in order to increase the expansion / contraction stroke of the expansion / contraction link 9, the connecting members 3 are stacked in a direction orthogonal to the expansion / contraction direction. There is no need to increase space. Also,
The increase of the storage space in the direction orthogonal to the storage direction is also slight.

(4) The oblique side 6 and the contact side 7 provided on each connecting member 3 can keep the maximum included angle between the connecting members 3 constant. (5) The intermediate frame 2 can prevent the extension link 9 from hanging under its own weight.

The above embodiment can be modified as follows. -As shown in FIG. 12, the telescopic links 9 on both sides of the intermediate frame 2
May be connected to one side of the intermediate frame 2. The first connecting hole 4a may be formed at an intermediate position deviated from the longitudinal center of the connecting member 3, and the connecting members 3 may be connected as shown in FIG. 13 to form a telescopic link. In a telescopic door using such telescopic links, a design different from the telescopic door shown in FIG. 1 can be configured. -By attaching a curtain material to the telescopic door so as to cover the telescopic door, it can be used as a telescopic link of an accordion curtain. -The telescopic door can be used as a gate. The connecting member 3 may be formed by a hollow extruded shape. A spacer may be provided between the connecting members 3 to reduce friction between the connecting members 3 when the expanding / contracting link 9 expands and contracts.

[0030]

As described in detail above, the present invention can provide a telescopic door link device capable of reducing the storage space.

[Brief description of the drawings]

FIG. 1 is a front view showing a telescopic door according to an embodiment.

FIG. 2 is a plan view showing a telescopic door.

FIG. 3 is an exploded perspective view showing a pair of connecting members.

FIG. 4 is a perspective view showing a state in which one set of connecting members is rotated to a maximum included angle.

FIG. 5 is a perspective view showing a state in which a pair of connecting members are stacked.

FIG. 6 is a perspective view showing a telescopic link connecting a large number of connecting members.

FIG. 7 is a perspective view showing a state where the telescopic link is folded.

FIG. 8 is a front view showing a state where the telescopic door is half folded.

FIG. 9 is a plan view showing a state in which the telescopic door is half folded.

FIG. 10 is a front view showing a state in which the telescopic door is fully folded.

FIG. 11 is a plan view showing a state in which the telescopic door is completely folded.

FIG. 12 is a plan view showing another example of the connection structure between the intermediate frame and the telescopic link.

FIG. 13 is a front view showing another example of the connection structure of the telescopic links.

[Explanation of symbols]

 3 Connecting material 9 Telescopic link

Claims (5)

[Claims] 1. A pantograph-shaped telescopic link is formed by rotatably connecting a middle portion and both ends of a plurality of connecting members in a longitudinal direction, and the telescopic link is formed in a thickness direction of the connecting material. A link device for a telescopic door, wherein the link device can be folded in a stacked state. 2. The connecting member is formed of a plate material and has a shape slid in a plate thickness direction at an intermediate portion in a longitudinal direction of the connecting member, so that the expansion / contraction link corresponds to a product of the thickness of the connecting member and the number of the connecting members. 2. The link device for a telescopic door according to claim 1, wherein the link device can be folded in a state of being stacked at a thickness. 3. The expansion / contraction device according to claim 2, wherein a pair of connecting members connected to each other at an intermediate portion in the longitudinal direction are provided with a rotation restricting portion for setting a maximum included angle of the connecting members. Linkage device for flexible doors. 4. The connecting member located at both ends of the telescopic link according to claim 1 is connected to an end frame so as to be rotatable and vertically movable, and one end is provided. A telescopic door, wherein the frame is movable with respect to the other end frame. 5. The connecting member located at both ends of the telescopic link according to claim 1 is connected to an end frame so as to be rotatable and vertically movable, and one end is provided. An accordion curtain, wherein a frame is movable with respect to the other end frame, and a curtain material for covering the telescopic link is attached between the end frames.