JPH07139246A - Center hinge for interlocking folding door - Google Patents

Abstract

PURPOSE:To ensure and smooth the transmission of a door opening/closing force between a pair of adjacent doors using a center hinge for interlocking folding doors and to simplify the work of installing the doors. CONSTITUTION:A traveling body 3 is attached to a pair of adjacent doors 1, 2 via a pair of attachments 7, 8 on the right and left sides of the body 3 so that the doors freely fold. A pair of power arms 13, 14 rotatably shaft- supported on the right and left sides of the traveling body 3 have their opposite inner end portions connected together via a transmission retarding mechanism 16 which transmits in retarded timing the force to open and close the pair of doors 1, 2. The outer end portions of the power arms 13, 14 which symmetrically extend outward from the traveling body 3 are freely slidably connected via rollers 18, 19 to sliding grooves 7c, 8c which are extended in symmetry toward the outside of the attachments 7, 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center hinge of an interlocking folding door used for opening and closing a front opening of a storage space in furniture such as a wardrobe and a closet.

[0002]

2. Description of the Related Art Conventionally, interlocking folding doors used for furniture and the like are provided with a plurality of door pairs a, b, c as shown in the schematic views of FIGS. 7 and 8A and 8B. Door pair a, b, c
Is a pair of doors d and d ', which are foldably connected to each other with their backs facing each other by a hinge e, and two adjacent door pairs a and b and b and c have opposite end portions respectively. The surfaces of d'and d are connected to a common traveling body f by a center hinge (not shown) so that the surfaces of the doors can face each other, and the outer doors d and d'of the two door pairs a and c at the left and right ends are connected. It is connected to the traveling body g by a hinge so that it can be opened and closed. Then, each of the traveling bodies f and g
However, it is possible to laterally guide the upper guide rail i and the lower guide rail j provided along the upper and lower opening edges of the door mount h of furniture or the like through rollers (not shown). It is configured to be engaged.

In the interlocking folding door of this type, when the doors are opened, a torque in the opening direction can be applied to the first door pair a at the end through the handle k, but It is impossible to directly apply such torque to the second and third door pairs b and c. Therefore, first, the first door pair a is folded by pulling it forward through the handle k while pulling the outer door d of the first door pair a in the lateral direction, whereby the guide rails i, j are folded. The door pair a is slidable along the guide rails i and j, so that the subsequent second and third door pairs b and c can be folded at the same time. I am trying to open it.

However, for each door pair a, b, c, each door d,
A force as a catch (close) for holding d '... in a planar closed state and a force as an open catch are given respectively, and the force is proportional to the number of door pairs. Since it becomes large, a plurality of door pairs a,
It is not easy to open or close b, c, ... At once, and as the number of door pairs increases, the operation for opening and closing the doors becomes more difficult.

Therefore, in order to solve the above problems, a folding door equipped with a device for assisting the opening of the door is disclosed in Japanese Patent Publication No. 3-500433.
As shown in FIGS. 9 to 12, this door opening assisting device is connected to a common holding device l which is guided along a guide rail so as to be foldable by hinges m and m '. In the adjacent door pairs n and o, the doors n ₁ and o ₁ are respectively provided with the carrying members p and p, and project forward from the holding device 1 in parallel with the axes of the hinges m and m ′. The bifurcated levers r and r that pivot around the coaxial q are attached to the rotation axis q, and one lever arm r ₁ or r ₁ of the lever r or r is placed within the pivot range of the entraining bodies p and p. is positioned, the other lever arm r _2, r _2, and has a provided to extend within the two doors to n adjacent, at o of the doors n _1, o ₁ configuration.

When the above-mentioned door opening assisting device is used, when the doors n ₁ and o ₁ provided with the entrainers p and p have a predetermined turning angle or more,
The torque acting in the opening direction is applied via the lever r to the door n ₁ ,
In addition to o ₁ , the plurality of door bodies n and o are sequentially folded from one to the other to be in an open state. Further, in the open state, the torque acting in the closing direction is applied to the other door body o, so that the torque acting in the closing direction is applied to the adjacent door body n via the lever r, whereby a plurality of door pairs n. , O are sequentially closed in the opposite direction to the opening.

[0007]

However, in the above-described door opening assisting device, the levers r, r are extended to the outside of the holding device l by the rotating shaft q, and the door is opened / closed during the opening / closing operation. In order to reliably and smoothly transmit the required torque between n ₁ and o ₁ , it is necessary to project the lever arms r ₁ and r ₂ of the levers r and r for a long time, It will definitely grow in size.

Further, the levers r, r are on the back side of the doors n ₁ , o ₁ and are exposed for a long time, and when the door is opened, a large gap is formed between the lever arm r ₂ and the back surface of the door n _1. I mean, there is at the time of door closing, or clothes or the like is caught in the lever arm r _2, also will sandwich the such as clothes storage goods between the lever arm r ₂ and the door back.

Further, between adjacent door pairs n and o,
In order to transmit the required torque accurately,
Since it is necessary to improve the dimensional accuracy of the shapes of the carrier p, the levers r, r, the mounting position, etc., the machining and mounting work becomes troublesome.

In view of the above-mentioned problems of the above-mentioned prior art, the present invention provides, in claim 1, opening and closing of a pair of end doors.
Adjacent pairs of doors follow each other to open and close, thereby enabling lateral travel along the guide rails of the pair of doors, so that the driving force of the pair of doors causes subsequent pairs of doors to open and close sequentially. By doing so, it is possible to smoothly open and close a plurality of door pairs, further reduce the size and weight, improve the workability of installing the door, and provide the door at a low cost. , Its purpose.

Further, according to claim 2, adjacent two
Compared to the one according to claim 1, by connecting the outer end portions of the pair of power arms for interlocking one door pair with the extended portion of the door mounting body via a link, manufacturing is further facilitated, I am trying to offer it at a low price.

[0012]

In order to achieve the above object, the present invention provides, in claim 1, a plurality of door pairs in which a pair of doors are pivotally mounted so as to be foldable, and two adjacent door pairs are provided. A center hinge of an interlocking folding door that connects a pair of doors to a common traveling body so that the pair of doors can be integrally opened and closed, and a pair of attachment bodies that are attached to opposite ends of two adjacent door pairs, respectively. In the common traveling body via a support shaft, there is a pair of power arms pivotally supported so as to be rotatable left and right, and the two mounting bodies face each other so that two door pairs can be folded. The ends are rotatably connected to the left and right sides of the traveling body, respectively, while the opposing inner ends of the pair of power arms transmit the opening / closing force of the door pair with a delayed timing. It is connected through the mechanism and each -The outer end portion of the arm that extends symmetrically outward from the traveling body is slidably connected via rollers to the slide grooves that extend symmetrically toward the outside of each of the mounting bodies. It seeks to provide a center hinge for the interlocking folding door that features.

Further, in claim 2, in claim 1,
An outer end portion of each power arm, which extends symmetrically outward from the traveling body, is rotatably connected via a link to an extension portion which extends symmetrically outside of the mounting body. What is done is the content.

[0014]

When a plurality of door pairs are closed, the transmission delay mechanism for transmitting the door opening / closing force to each other between the two adjacent door pairs with a delayed timing is provided by the pair of inner ends of the power arms facing each other. Part of the sliding groove hole is formed by engaging a protruding interlocking pin on one side with a widening slide groove hole cut on the other side. The door opening / closing force is not transmitted between the two door pairs.

From the above closed position, when the first door pair at one end is provided with a torque in the opening direction through the handle, the mounting body is also rotated as the door is opened. , It becomes the same as the opening angle of the door. As a result, according to claim 1, the outer end of one power arm slides in the direction of the opposite end of the door along the slide groove via the roller, so that the power arm is counterclockwise about its support shaft. It turns in the turning direction. Therefore, the interlocking pin projecting from the inner end of the power arm comes into contact with the rear opening edge of the slide groove hole of the other inner end of the power arm.

Further, when the door is opened, the direction of the slide groove in the mounting body is changed accordingly, and when the power arm is further rotated in the counterclockwise direction, at this point, the other side of the power arm is moved through the interlocking pin. The power arm is rotated clockwise, and the outer end of the power arm pushes the outer end of the mounting body forward through the roller. As a result, the door adjacent to the opened door rotates about the pivot point of the traveling body and is opened. That is, when the first pair of doors are opened by a predetermined angle or more, the doors in the second pair of doors start to be opened.

Thus, by opening the first door pair and the doors of the second door pair adjacent to the first door pair to some extent,
These doors can be slid laterally along the guide rails via the traveling body. Therefore, when the doors are slid in the lateral direction, the force of the force causes the second door pair to be folded and opened, so that the door of the second door pair opens the door of the third door pair. Thus, the subsequent third, fourth, fifth, ... Door pairs are sequentially folded and opened.

When the first door pair is slid in the closing direction from the above open position, the door pairs other than the terminal door pair slide along the guide rails in the state of being folded and the force thereof is exerted. Is applied as a closing force to the inner door of the terminal door pair via the traveling body, the door pair is closed, but when it is closed for a predetermined angle or more, it is attached to the outer end of the power arm. The closing force of the door is applied through the slide groove of the body and the roller, and the power arm is rotated counterclockwise. As a result, the closing force is applied to the doors of the adjacent door pair by the power arm via the transmission delay mechanism, so that the doors are closed. The plurality of door pairs are sequentially closed by the sliding force, and finally the first door pair is closed to complete the closing.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. First, when explaining the embodiment of claim 1 with reference to FIGS. 1 to 3, a plurality of door pairs 1, 2, ... Can be folded so that two doors 1a or 2a can be folded with their back surfaces facing each other. It is pivotally formed.

The traveling body common to the two adjacent door pairs 1 and 2, that is, the upper traveling body 3 shown in the figure, has a pair of vertical rollers 4 and 4 and a pair of horizontal rollers on a top plate (not shown). 5, 5 are respectively pivotally supported and guided so as to be freely movable along an upper guide rail 6 which is horizontally arranged along an upper opening edge of a door mounting body (not shown) made of furniture or the like. Therefore, a pair of vertical rollers 4 and 4 for preventing lateral shake and lateral rollers 5 and 5 for traveling are engaged with the guide rail 6.

The traveling body 3 is formed as a hollow body having an open front surface, and a pair of left and right mounting bodies 7 and 8 are provided on the left and right sides of the opening edge, respectively, at opposite ends thereof and the opening edge of the traveling body 3. And
A pair of arms 9 and links 10 each of which has end portions pivotally attached by pins 11, 11, 12, 12 are linked so as to be foldable. The pair of mounting bodies 7 and 8 shown in the drawing are
Opposite end sides are formed by sockets 7a and 8a, and the sockets 7a and 8a are recesses 1b and 2b that are provided on the back surfaces of the opposite end portions of the inner doors 1a and 2a of the two adjacent door pairs 1 and 2. It is formed so that it can be fixed in the embedded state, so that the doors 1a and 2a can be foldably attached. At this time, instead of the sockets 7a and 8a, the opposite ends are formed by flat plate portions (not shown), and the doors 1a and 2a are attached by screwing to the back surfaces of the opposite ends of the doors 1a and 2a. You may make it attach so that folding is possible.

The attachments 7 and 8 are integrally formed with extended portions 7b and 8b which extend symmetrically to the opposite sides and can be abutted against the back surfaces of the doors 1a and 2a. Slide grooves 7c and 8c, which are long in the lateral width direction of the doors 1a and 2a, are formed in the portions 7b and 8b in parallel with the doors 1a and 2a, and penetrate in the vertical direction.

A pair of power arms 13 and 1 formed on the back surface of the bottom plate 3a or the top plate of the traveling body 3 and on the left and right sides of the middle portion thereof in a substantially V shape in plan view.
4 is rotatably supported by pivotally supporting a substantially intermediate portion between the bent portion and the inner end portions 13a and 14a by the support shaft 15, and the inner and outer both end portions 13a, 13b, 14a and 14b are directed forward. It is arranged to do.

Between the two adjacent door pairs 1 and 2, the opening / closing force of the doors can be transmitted to each other, and the opening / closing force of one door is not immediately transmitted to the other door by opening / closing. The inner end portions 13a and 14a of the pair of power arms 13 and 14 are connected to each other via a transmission delay mechanism 16 configured to transmit at a slightly delayed timing.

The transmission delay mechanism 16 shown in the figure has an interlocking pin 16a and a width wider than the diameter of the interlocking pin 16a by an appropriate dimension. The pin 16a has a play in the lateral width direction so that it can slide in the longitudinal direction. The slide pin 16a and the slide groove 16b are formed at the inner end portions 13a and 14a of the power arms 13 and 14, respectively.

A roller may be rotatably attached to the interlocking pin 16a, but in this case as well,
The roller and the slide groove hole 16b are engaged with each other with play.

Further, as the transmission delay mechanism 16,
The base ends of the fan-shaped interlocking gears (not shown) are pivotally supported by the support shaft 15 together with the power arms 13 and 14 so that they can be rotated separately, and are meshed with each other. Middle part and power arm 1
In the inner end portions 13a and 14a of the reference numerals 3 and 14, an interlocking pin (not shown) and an arc-shaped slide hole are provided on a circumferential line centered on the support shaft 15, at positions facing the intermediate portion.
You may make it have the structure of being engaged so that it can slide mutually.

Then, the pair of power arms 13, 1
A vertical support shaft 17 is provided on the outer end portions 13b and 14b in FIG.
Rollers 18 and 19 are rotatably supported by the mounting members 7 and 19, respectively.
8 are extendedly engaged with the slide grooves 7c and 8c of the extended portions 7b and 8b.

When using the center hinge having the above structure,
From the door closed position shown in FIG. 1, two adjacent door pairs 1, 2
When one of the doors 1a in 1 is opened, the door 1a is pulled out and opened by the pair of arms 9 and the link 10, so that the outer end portion 13b of the power arm 13 has the roller 18 along the slide groove 7c. Is guided in the direction of opening the door. As a result, the power arm 13 is rotated in the counterclockwise direction about the support shaft 15, and the interlocking pin 16a of the inner end portion 13a moves to the other side at the predetermined opening angle of the door 1 as shown in FIG. Power arm 1
4 is in the slide groove hole 16b of the inner end portion 14a and contacts the rear opening edge thereof.

Therefore, when the door 1a is opened up to a predetermined angle or more, the other power arm 14 receives the rotational force in the clockwise direction through the interlocking pin 16a and is rotated, and the power concerned is rotated. A force is transmitted to the mounting body 8 via the roller 19 at the outer end portion 14b of the arm 14 and the front opening edge of the slide groove 8c with which the roller 19 abuts, whereby torque in the opening direction is applied to the door 2a. ,
As a result, the adjacent door pair 2 is folded to facilitate the opening operation of the succeeding door pair (not shown).

When the door 2a is closed from the door open position to the position shown in FIG. 3, the interlocking pin 1 of the one power arm 13 is closed.
The rear opening edge of the slide groove hole 16b in the other power arm 14 contacts 6a. Therefore, by closing the door 2a in the direction indicated by the arrow A, the power arm 13 is rotated and torque is transmitted to the door 1a, and the door pair 1 is closed there.

Next, regarding the embodiment of claim 2, FIG.
If this is illustrated with reference to FIG. 6, there is no slide mechanism by the slide grooves 7c and 8c and the rollers 18 and 19 in the first embodiment, and the extending portions 7b and 8 are provided in the attachment bodies 7 and 8.
Only b is formed.

The inner end portions 13a and 14a of the pair of power arms 13 and 14 are connected by the transmission delay mechanism 16 composed of the interlocking pin 16a and the slide groove hole 16b. The outer end portions 13b and 14b of the power arms 13 and 14 and the extending portions 7 of the mounting bodies 7 and 8
b and 8b are connected by links 22 and 23 that are rotatably pivoted by pins 20 and 21 at the ends.
Others are the same as in the case of the embodiment of claim 1 described above.

In the center hinge having the above structure, when the door is closed, the power arms 13 and 14 and the links 22 and 23 are folded around the pin 20 as shown in FIG. When the door 1a is opened as shown in FIG. 5, the power arm 13 and the link 22 gradually increase in angle around the pin 20 so that the power arm 13 moves around the support shaft 15 as a center. It is rotated counterclockwise and the rotational force is transmitted to the other power arm 14 at a predetermined opening angle of the door 1a or more, where the link 23
Is torqued to the door 2a via the mounting body 8. As a result, the adjacent door pairs 2 are folded and opened.

At the time of closing the door, when the door 2a is closed to the position shown in FIG. 6, both power arms 14 and 13 are started to be interlocked by the transmission delay mechanism 16, and the door 2a is there.
Is closed from the position shown in the direction of arrow A, the closing force of the door 2a causes the attachment body 8, the link 23, the power arm 14, the transmission delay mechanism 16, the power arm 13, the link 22, and the attachment body 7 to be closed. Is applied as a torque to the door 1a, thereby closing the adjacent door pair 1.

A lower center hinge (not shown) is shown and constructed in substantially the same manner as the upper center hinge in each of the described embodiments.

[0037]

Since the present invention is configured as described above, according to claim 1, in the interlocking folding door having a plurality of door pairs, the door pairs at the ends are opened by a predetermined angle or more. , The subsequent door pair adjacent to this is opened to some extent with a timing slightly delayed, and then the front end and each subsequent door pair can travel along the guide rails via the common traveling body, With the running force, a plurality of subsequent door pairs can be sequentially folded and opened. Moreover, the transmission of the opening / closing force between each pair of two adjacent doors is performed via the pair of power arms, and the transmission of the door opening / closing force between the door and the power arms is rotatably engaged with the slide groove. Since the sliding means constituted by the fitted roller is used, it is possible to efficiently and smoothly transmit the opening / closing force between two adjacent door pairs. Since it is also simple, it is possible to reduce the size and weight and reduce the price. Furthermore, since the power arm and the mounting body are connected by the sliding means, the door can be opened without worrying about the position of the outer end of the power arm. Since the door can be attached, the workability of attaching the door pair can be improved.

Further, according to claim 2, by connecting the power arm and the mounting body with a link, these connecting means are simplified, and in addition to the effect of claim 1, it is possible to provide at a lower cost. Become.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing a center hinge of an interlocking folding door according to claim 1 of the present invention in a door closed state of an embodiment.

FIG. 2 is a cross-sectional plan view showing a door opening interlocking start state of the embodiment.

FIG. 3 is a cross-sectional plan view showing a door closing and interlocking start state showing the embodiment.

FIG. 4 is a cross-sectional plan view of a door closed state showing an embodiment of the same hinge according to claim 2 of the present invention.

FIG. 5 is a cross-sectional plan view of the door opening / closing interlocking start state showing the embodiment.

FIG. 6 is a cross-sectional plan view showing a door closing / coupling start state showing the embodiment.

FIG. 7 is a schematic front view of an interlocking folding door.

FIG. 8 shows an interlocking folding door, (A) is a schematic plan view in a door closed state, and (B) is a schematic plan view in a door open state.

FIG. 9 is a rear view showing a door opening assisting device in a conventional folding door.

FIG. 10 is a plan view showing a usage state of the same apparatus.

FIG. 11 is a plan view showing a door opening interlocking state showing the same device.

FIG. 12 is a plan view showing the same apparatus in a door closing interlocking state.

[Explanation of symbols]

 1 Door pair 2 Door pair 1a Door 2a Door 3 Traveling body 7 Mounting body 8 Mounting body 7b Extended portion 8b Extended portion 7c Sliding groove 8c Sliding groove 13 Power arm 14 Power arm 13a Inner end portion 14a Inner end portion 13b Outer end Part 14b Outer end part 15 Spindle 16 Transmission delay mechanism 18 Roller 19 Roller 22 Link 23 Link

Claims (2)

[Claims] 1. A pair of doors, each of which has a plurality of door pairs in which a pair of doors are pivotally mounted so as to be foldable, and two adjacent door pairs are connected to a common traveling body so that they can be opened and closed integrally in conjunction with each other. A center hinge of an interlocking folding door, and a pair of mounting bodies that are respectively mounted to opposite end portions of two adjacent door pairs, and a common traveling body through a support shaft, and can rotate left and right. Has a pair of power arms pivotally supported,
The opposite ends of the two mounting bodies are rotatably connected to the left and right side portions of the traveling body, respectively, so that the two door pairs can be folded, while the opposite inner end portions of the pair of power arms are opposed to each other. Are coupled via a transmission delay mechanism that transmits the opening / closing force of the door pairs to each other with a delayed timing, and the outer ends of the power arms symmetrically extending outward from the traveling body are connected to the mounting bodies. A center hinge of an interlocking folding door, which is slidably connected to a slide groove that extends symmetrically toward the outside of the door through a roller. 2. A pair of doors, each of which has a plurality of door pairs in which a pair of doors are pivotally mounted so as to be foldable, and two adjacent door pairs are integrally connected to a common traveling body so that they can be opened and closed integrally. A center hinge of an interlocking folding door, and a pair of mounting bodies that are respectively mounted to opposite end portions of two adjacent door pairs, and a common traveling body through a support shaft, and can rotate left and right. Has a pair of power arms pivotally supported,
The opposite ends of the two mounting bodies are rotatably connected to the left and right side portions of the traveling body, respectively, so that the two door pairs can be folded, while the opposite inner end portions of the pair of power arms are opposed to each other. Are coupled via a transmission delay mechanism that transmits the opening / closing force of the door pairs to each other with a delayed timing, and the outer ends of the power arms symmetrically extending outward from the traveling body are connected to the mounting bodies. A center hinge of an interlocking folding door, which is rotatably connected via a link to an extending portion that extends symmetrically toward the outside.