JPH11117599A - Lifting and folding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out the opening operation of a lifting and folding door smoothly with a simple constitution, and to hold a door-opened state by itself only by promoting the door- opened state up to a fixed place in the lifting-lowering and folding door device, in which the sideway opening section of a folding-door mounting body is freely opened and closed by lifting-lowering operation, not a horizontal-sliding folding door. SOLUTION: The upper end section 2a of an upper door 2 is attached pivotally to the upper section of a folding-door mounting body 1, and a sideway opening section 1a is closed by a lifting-lowering folding door 6, in which the upper end section 4a of a lower door 4 is continuously pivoted and suspended to the lower end section 2b of the upper door 2 by a sideway pivotal supporter 5. A rotary arm 9 is rotated freely in the vertical direction by a sideway shaft 8 installed to a mounting base body 7 internalized to the folding-door mounting body 1, and the free end section 9c of the rotary arm 9 is pivoted continuously to the lower inside 4d of the lower door 4 by a sideway pin 10 for opening and closing the folding door. The lifting-lowering folding door 6 is bent in a V shape by lifting-lowering operation and opened upwards, and a considered state, in which the sideway shaft, the sideway pin 10 for opening and closing the folding door and the sideway pivotal supporter 5 are disposed on a straight line as shown in a vertical straight line B, is set. The door-opened state can be held by itself by lifting and lowering the lifting-lowering folding door 6 from the considered state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front opening of a kitchen unit such as a hanging cabinet or an entrance opening of a building. By raising the folding door,
The present invention relates to an elevating / folding door device that can be in an open state and that can be closed by opening / lowering the elevating / folding door in the open state.

[0002]

2. Description of the Related Art Conventionally, this type of a folding door apparatus has been proposed as shown in FIG. That is, the upper part of the upper door c1 is pivotally connected to the upper part of the folding door mounting body a by the hinge d1 so as to be rotatable in the vertical direction on the upper part of the lateral opening part b, and the lower part of the upper door c1 is An upper / lower folding door e is formed by connecting the upper end of the lower door c2 with a horizontal pivot support d2, and the horizontal opening b can be closed in a hanging state of the vertical folding door e.

Here, according to the conventional example, the lower door c
Slide pins f are protrudingly provided on the right and left sides of the lower part of the slide rail 2 and are engaged with the slide rails g which are located near the lateral opening b of the folding door mounting body a and are vertically provided on the left and right side walls. The door opening operation as shown by the imaginary line of the elevating folding door e is guided so as to be movable up and down by being fitted.

If the elevating door e is raised by hand, the elevating door e is bent in a V-shape and moves upward, whereby the lateral opening b is gradually opened. Can go, but the open state must be maintained. For this reason, the pulley belt h connected to the slide pin f that moves up the slide rail is connected with the balance weight i and suspended therefrom, and the pulley belt h is wrapped around the pulley j to be shown by a solid line. The elevating door e in the opened state is in equilibrium with the balance weight i.
The open state is maintained.

It is also known to automatically open and close the elevating / folding door e. For this purpose, a transmission mechanism that operates the slide pin f by a drive motor k opens and closes the door to a desired height. For example, various cylinder devices m are connected between the lower door c2 and the upper door c1, and the elevating door e is automatically opened and closed by the expansion and contraction operation of the cylinder device m. It is also known.

[0006]

As described above, in the conventional folding door apparatus, the sliding pin f is restrained by the slide rail g, and the lifting door e is moved in the same manner as the conventional folding door which is opened and closed in the horizontal direction. , The slide pin f with respect to the slide rail g during operation.
Not only makes it difficult to open and close smoothly,
Noise is generated, and the slide rail g and the slide pin f must be provided on both the left and right sides of the folding door mounting body a and the lower door c2, respectively. Therefore, the production cost is increased and the durability is also increased. Satisfactory results are unlikely to be obtained.

Further, according to the conventional apparatus, when the folding door is moved up to the opened state, the opened state is maintained, and objects can be taken in and out and people can pass through when the horizontal opening b is opened. You must be able to do it with peace of mind. Therefore, in order to achieve this purpose, in the conventional example,
It is necessary to dispose the balance weight i and various mechanisms attached thereto, so that sufficient results cannot be obtained in terms of manufacturing cost, occurrence of failure, and durability. Of course, if various power sources are used instead of manual operation, the maintenance of the open state can be realized relatively easily, but in this case, the production cost will obviously be significantly different, and It will not be able to cope.

The present invention is to solve the above-mentioned drawbacks of the prior art from the ground up. According to the first aspect of the present invention, a slide rail or a slide pin is not employed at all as in the prior art.
A turning arm is provided which is turned up and down by a horizontal rotating shaft provided on a mounting base provided inside the folding door mounting body, and a free end thereof is provided on a lower inner side of a lower door of the folding door, and a folding door opening / closing sideways. It is pivoted by pins. Then, by the lifting operation of the lifting / lowering folding door, the lifting / lowering folding door closing the lateral opening in the hanging state is opened in the folded state by the rotation of the rotation arm, whereby the slide rail or the like is opened. It is a first object of the present invention to eliminate the defect of the conventional example due to the addition of the above.

In the first aspect of the present invention, in the course of the door closing operation, a lateral rotation axis of the mounting base is provided;
The folding pin for opening and closing the horizontal door, the horizontal pivot of the upper door and the lower door in the elevating folding door by setting a thought state that will be arranged on a virtual straight line, the lifting folding door from the thought state As long as the door is further opened, even if the operation hand is released in this state, the door can be held in a self-holding state without any effort and without any other force. A second object of the present invention is to eliminate the need for a conventional mechanism such as a balance weight, a drive motor or a cylinder device, and to greatly reduce the manufacturing cost and improve the durability.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the rotating shaft of the damper mechanism is connected to the horizontal rotating shaft of the rotating arm, whereby the braking force of the damper mechanism by viscous fluid is generated. Thereby, resistance is given to the closing movement of the folding door, so that the lowering of the folding door at the time of closing can be performed slowly, so that even if the operation hand is released from the lower door, the door is closed. At times, the door is not impacted.

Further, in the case of claim 3, by appropriately disposing and adding a buffer to the structure of claim 1, when the opening / closing operation of the folding door is performed with a considerable force. Also, the lower door and the rotating arm unwillingly hit with a large impact force,
As a result, an attempt is made to solve a problem that an excessive force is applied to various components of the elevating / folding door device and the components are damaged.

According to a fourth aspect of the present invention, the rotary arm is not only provided on the mounting base but rotatably provided by a lateral rotation shaft as in the first aspect. The movement of the spring holding traveling body, to which the elastic force of the compression spring is transmitted, is transmitted to the turning base of the turning arm via a link arm pivotally connected to the turning arm by a connecting pin. With this configuration, when the lifting door is closed, it is possible to apply a closing force to the lower door via the rotating arm, and hold the closed state of the lifting door without using another magnetic force or locking means. I can do it.

According to a fourth aspect of the present invention, with the structure attached to the mounting base, the opening / closing operation of the folding door is in the process of being opened, and the restoring force based on the compression spring causes the lower door to move through the rotating arm. The door opening operation can be easily performed by applying all the door opening forces, and the door opening force is configured to decrease as the opening degree of the folding door approaches the end as described above. Thus, the occurrence of trouble due to an excessive door opening force is suppressed.

According to a fifth aspect of the present invention, the rotating shaft of the damper mechanism is connected to the horizontal rotating shaft of the rotary arm in the same manner as in the second aspect, so that the lifting / lowering folding door can be lowered by closing the door. , So that this can be done slowly,
Further, in the case of claim 6, the same as in claim 4 above,
The shock absorber is provided in the same manner as in the third aspect of the present invention, so that when the door is opened, the impact applied to the folding door is reduced, thereby preventing the occurrence of a failure and ensuring the durability. And

[0015]

According to the present invention, in order to achieve the above object, according to the first aspect, the folding door mounting body includes:
The upper end of the upper door is pivotally attached to the upper part of the lateral opening so as to be freely openable in the vertical direction, and the upper end of the lower door is pivotally connected to the lower end of the upper door by a horizontal pivot support. A vertical folding door is formed by being connected in a hanging state, and the horizontal opening is closed by the vertical folding door,
The mounting base provided inside the folding door mounting body is provided with a rotating arm so as to be rotatable up and down by its horizontal rotating shaft,
By linking the free end of the lower door to the lower inside of the lower door with a horizontal pin for opening and closing the folding door, and by moving up and down the folding door, by rotating the horizontal pivot support in the direction away from the folding door mounting body, The V-shaped bent lower and upper doors are opened upward to open the horizontal opening freely, and the horizontal rotation axis of the mounting base is located at the end of the opening. When,
The folding door opening / closing lateral pin and the lateral pivot support are set in a thought state in which they are arranged in a straight line, and the lifting operation of the elevating folding door is further continued from the thought state to open the door. It is an object of the present invention to provide an elevating / folding door device characterized in that the state can be freely held.

According to a second aspect of the present invention, in contrast to the first aspect, the lateral rotating shaft provided on the mounting base of the rotating arm is provided with a braking force by viscous fluid in the closing direction of the vertical folding door. A configuration in which the rotating shafts of the damper mechanism are connected is added.

[0017] Further, in the third aspect, in the same manner as in the first aspect, when the door is in a self-holding state in a closed state and an inner side of a lower portion of the lower door and an inner side of a free end of the rotating arm collide, A configuration in which a buffer that can be pinched between the two parts is provided is added.

According to the fourth aspect of the present invention, the upper end of the upper door is pivotally attached to the upper part of the horizontal opening so that the upper door can be opened vertically, and the lower end of the upper door is attached to the upper part of the lateral opening. By connecting the upper end of the lower door with a horizontal pivoting support and connecting it in a hanging state, an elevating folding door is formed, and the elevating folding door closes the lateral opening and closes the folding door mounting body. A spring-holding traveling body housed in the inner mounting base in a state of being urged toward the lateral opening by a compression spring so as to be movable in a lateral direction, and is rotatable by an axial pin on the spring-holding traveling body. A link arm pivotally attached to the mounting base, and being rotatable vertically in a horizontal rotation axis near a horizontal opening in the mounting base; and
A pivot arm is provided around the lateral rotation shaft, the pivot arm including a pivot base to which the other end of the link arm is pivotally attached by a pivot pin, and an arm extending from the pivot base. , With its free end inside the lower part of the lower door,
In the closed state of the folding door, the pushing force of the spring holding traveling body by the compression spring in the contracted state connects the shaft pin and the horizontal rotation axis via the link arm. The power is transmitted to the pivot pin which is located between the shaft pin and the horizontal rotation shaft and is located slightly above the horizontal line than the horizontal line, applies the closing power in the closing direction for the lower door to the rotating arm to the rotating arm, and raises and lowers the folding door. Movement operation,
By rotating the lateral pivot support in a direction away from the folding door attachment body, the lower door and the upper door in the V-shaped bent state are opened upward, and the lateral opening is freely openable. ,And,
At the time of the opening, the compression spring is extended so that the pivot pin is pivotally displaced below the lateral line of the axis, and the lower door is assisted to pivot in the opening direction. In the above, the horizontal rotation axis of the mounting base, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set in a conceivable state arranged in a straight line. By continuing the lifting operation of the folding door, the opened state of the folding door is made self-holding free, and the connecting pivot pin is further rotated to the side of the horizontal opening than the horizontal rotation axis. It is intended to provide an elevating / folding door apparatus characterized in that the rotation force of the lower door in the opening direction is applied to the rotating arm with the help of the extended compression spring.

According to a fifth aspect of the present invention, in contrast to the fourth aspect, the lateral rotation shaft provided on the mounting base of the rotating arm has a braking force by viscous fluid in the closing direction of the folding door. A configuration in which the rotation shafts of the damper mechanism are connected is added. In the case of the sixth aspect, the rotation axis is the same as that of the fourth aspect in the self-holding state in the closed state and the lower inner side of the lower door At the time of collision with the inside of the free end of the arm, a configuration is provided in which a buffer that can be pinched between the two parts is provided.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A lifting door apparatus according to a first embodiment of the present invention will be described in detail with reference to the embodiments shown in FIGS. 1 to 4. First, referring to the closed state of FIG. The upper end 2a of the upper door 2 is pivotally attached to the attachment 1 by a pivot attachment 3 at the upper portion of the lateral opening 1a so as to be rotatable in the vertical direction. . Here, a simple uniaxial hinge 3A or a slide hinge 2B or the like as shown in FIG. 2 is appropriately used as the pivotal attachment 3, and in this case, the hinge main body 3a is attached to the top plate of the folding door attachment 1. 1b, and a cup 3c pivoted by a pair of links 3b is attached to the back surface of the upper door 2b.
It is designed to be attached to the upper inner surface of.

Here, in the illustrated example, the upper door 2 is a folding door mounting body 1.
In contrast to this, the external opening 1a is provided externally, but of course, an internal configuration in which it is fitted inside the horizontal opening 1a may be adopted.

Further, as in the conventional example, the upper door 2
The lower end 2b of the lower door 4 is connected to the upper end 4a of the lower door 4 in a hanging state by being pivoted by a lateral pivot attachment 5 such as a uniaxial hinge or the like.
The above-described lateral opening 1a is closed. Here, in the figure, 2c denotes an upper door handle provided on the lower outer surface 2d of the upper door 2, and 4b denotes a lower door handle provided on the lower outer surface 4c of the lower door 4, respectively.

In the illustrated example, since the elevating and lowering door 6 is externally attached as described above, the door is closed by holding the door in a hanging state.
It is desirable that the closed state of the elevating folding door 6 can be reliably held by an appropriate locking tool. In addition, in the case of the internal lifting / lowering folding door 6, a stopper or a magnet catch, etc., for preventing the insertion of the folding door 6 is appropriately provided in the folding door mounting body 1 so as not to be inadvertently pushed into the folding door mounting body 1. May be provided.

In the present invention, the mounting base 7 is mounted in the folding door mounting body 1 without providing a slide rail or a slide pin as in the above-described conventional example, and the horizontal rotating shaft 8 protruding orthogonally to the mounting base 7 is attached to the mounting base 7. The pivot base 9a is pivotally mounted so that the arm 9 can pivot in the vertical direction. Further, a free end 9c of the arm 9b protruding from the turning base 9a is located on the lower inner side 4d of the lower door 4 and is linked by a folding door opening / closing lateral pin 10.

That is, in the illustrated example, the above-mentioned turning base 9a
Are fixed on the left and right side wall inner surfaces 1c forming the lateral opening 1a of the folding door mounting body 1 by screws 7a, so that the protrusions are rotatable orthogonally to the side wall inner surface 1c. A rotation base 9a of a rotation arm 9 bent in a dogleg shape is mounted on the horizontal rotation shaft 8 provided. When the lifting door 6 is in the closed state, the arm 9b of the rotating arm 9 is bent downward and bent, and the free end 9c is fixed to the washer 4e attached to the lower inner surface 4d of the lower door 4. It is linked by the horizontal pin 10 for opening and closing the folding door in an equilibrium state with the horizontal rotation shaft 8 described above. Here, in the figure, reference numeral 11 denotes a storage shelf of the folding door attachment 1, and an outer edge 9d of a hanging portion of the arm portion 9b of the rotating arm 9 is a lateral opening 1a of the folding door attachment 1 in the illustrated example. Are arranged so as to substantially coincide with the side wall end face 1d.

If the lower door handle 4b, the lower end of the lower door 4, or the upper door handle 2c in FIG. 2 is manually operated to raise and lower the folding door 6, the above-mentioned horizontal pivot can be obtained. When the support 5 rotates in the direction away from the folding door attachment 1, the lower door 4 and the upper door 2 are bent into a V-shape, and the lifting / lowering folding door 6 rotates upward. The horizontal opening 1a gradually increases its opening degree, and finally reaches the door opening state as shown in FIG.

That is, by the above-described lifting operation, the rotating arm 9 rotates about the horizontal rotation shaft 8, and the folding door opening / closing horizontal pin 10 moves upward as indicated by the virtual arc line A in FIG. The lifting door 6 is opened by a triangular deformation with the horizontal pin 10 for opening and closing the folding door, the horizontal pivotal support 5 and the pivotal attachment 3 as the pivot apex, and the upper door 2 and the door 4 As the folding angle α having the horizontal pivotal support 5 as its apex becomes gradually smaller, the door opening state gradually progresses.

In this way, when reaching the end of the opening / closing of the lifting / lowering door 6, the horizontal rotating shaft 8 of the mounting base 7, the horizontal pin 10 for opening / closing the folding door, and the horizontal pivoting support, as clearly shown in FIG. The imaginary state is set such that the components 5 are arranged on the straight line indicated by the virtual straight line B. Therefore, if the door opening operation is further continued from such a conceived state and the elevating / folding door 6 is moved up, the elevating / folding door 6 which has been moved up to this point will maintain its open state by itself, and accordingly the elevating / folding door 6 will be held. Even if the upward movement is stopped, the ascending / descending folding door 6 no longer descends, stops at the door opening position, and is held at this position by itself.

As described above, if the folding angle α in the thought state shown in FIG. 3 is α1, the folding angle α in the self-holding state shown in FIG. 4 becomes α2.
<Α1. Therefore, when attempting to operate the vertically movable folding door 6 from the self-holding state to the closed state, the lowering door handle 4b or the like is used to pull down the folding door 6 in the direction of the virtual arc line A. Of course, this allows the door to be closed, but as shown in FIG. 1, the lower door 4 is once pushed up from the self-holding state of the same opening as in FIG. From this state, the lower door 4 may be lowered in the direction of the virtual arc line A. Here, FIG. 1 is, of course, a longitudinal side view for facilitating understanding the relative relationship between the concept state of FIG. 3 and the opened self-holding state of FIG.

Next, a description will be given of a lifting / folding door apparatus according to a second aspect. Here, a known damper mechanism 12 using a viscous fluid is added to the configuration of the first aspect. That is, the horizontal rotation shaft 8 mounted on the mounting base 7 of the rotation arm 9 rotates the rotation arm 9 when it descends in the closing direction when the folding door 6 is closed. The rotating shaft (not shown) of the damper mechanism 12 is connected so that a braking force is applied to the descent. The connection mechanism between the rotating shaft and the lateral rotating shaft 8 will be described with reference to FIGS.
Will be described in detail.

Therefore, in the configuration of the second aspect, the following additional differences occur in the operation of the first aspect. When the self-holding is released from the state in which the elevating door 6 is self-holding the open state as described above, in claim 1, the elevating door 6 is supported using the lower door handle 4b or the like, While the door must be closed as shown in Fig. 1,
By appropriately selecting the braking force of the damper mechanism 12, the lifting / lowering folding door 6 can be slowly closed and lowered while receiving the above-mentioned braking force without adding any manpower, and can be brought into the closed state without impact. Also in this case, the horizontal pin 1 for opening and closing the folding door
0 means that the trajectory of the imaginary arc line A is gradually turned down, so that the trajectory follows a predetermined trajectory without a slide pin or a slide rail as in the conventional example.

Next, a third aspect of the present invention will be described. In contrast to the structure of the first aspect, as shown in the above-mentioned drawing, the state in which the open / close state of the folding door 6 is held in the lower side of the lower door 4 is maintained. At the time of collision between 4d and the inside 9e of the free end of the rotating arm 9, a buffer Bf which can be pinched between the two parts is provided. In the illustrated example, the buffer Bf made of rubber, cloth, spring, or the like is attached to the lower inside 4 d of the lower door 4.
, But may be installed on the inner side 9e of the free end. Therefore, the raising / lowering folding door 6 according to claim 3
When the door 6 is closed, the upward / downward folding door 6 may receive an excessive pushing force upward from the virtual straight line B. However, the washer 4e, the horizontal pin 10 for opening and closing the folding door, and the horizontal pivot support 5 or the like are pivoted. The apprehension that a large impact is applied to the tool 3 or the like and the components are damaged is substantially eliminated.

The following description relates to a lifting door apparatus according to claims 4 to 6 according to the embodiment disclosed in FIGS. The structure of claim 4 is the same as that of claim 1 in the following points as shown in FIG. 5, and the folding door mounting body 1 is provided at the upper part of the lateral opening 1a so as to be rotatable in the vertical direction. The upper end 2a of the upper door 2 is pivotally supported by a pivotal attachment 3, and the lower end 2b of the upper door 2 is connected to the upper end 4a of the lower door 4 by a lateral pivotal attachment 5 to be in a hanging state. The horizontal opening 1a is closed by the elevating folding door 6 formed by.

Next, on the mounting base 7 provided inside the folding door mounting body 1, unlike the first to third aspects, the following members are mounted. That is, as can be understood from FIG. 5, the mounting base 7 has a spring-holding traveling body 13 that is movable in the front-rear direction with respect to the lateral opening 1a.
Are accommodated by the compression spring 14 in a state of being urged toward the lateral opening 1a. A link arm 15 is provided on the side of the horizontal opening 1a of the spring holding traveling body 13 by a shaft pin 15a parallel to the horizontal rotation shaft 8 described above.
Is pivotally mounted at one end. That is, as can be understood from FIG. 5, the mounting base 7 is provided with a spring holding traveling body 13 that can freely move in the front-rear direction with respect to the lateral opening 1a in a state of being biased toward the lateral opening 1a by the compression spring 14. It is stored. The horizontal rotation shaft 8 is provided on the side of the horizontal opening 1a of the spring holding traveling body 13.
One end of the link arm 15 is pivotally connected by a shaft pin 15a parallel to the shaft arm 15a.

Further, the other end of the link arm 15 is rotatable up and down by a horizontal rotation shaft 8 near the horizontal opening 1a of the mounting base 7, and is located around the horizontal rotation shaft 8. Pivot base 9a of pivot arm 9
Are pivotally connected to each other by a pivot pin 15b. Further, as described above, the free end 9c of the rotating arm 9 is connected to the lower inner side 4d of the lower door 4 by the folding door opening / closing lateral pin 10 as described above. In FIG. 5, reference numeral 13a denotes a spring pressing rod for the compression spring 14.

The configuration attached to the mounting base 7 will be further described below with reference to the specific configuration disclosed in FIG. The mounting base 7 illustrated here is composed of a reinforcing cover plate 7A mounted on the inner surface 1c of the side wall of the folding door mounting body 1 and a mounting body 7B which is internally fitted therein. In FIG. 2, reference numeral 7b denotes an attachment hole formed in the reinforcing cover plate 7A for the screw 7a, and 7c denotes a through hole formed in the end plate 7d of the reinforcing cover plate 7A. Reference numeral 7e designates an attachment screw hole formed in the terminal plate portion 7f of the attachment body 7B. The attachment screw 7 is inserted through a screw through hole 7c (not shown) in a state where the attachment body 7B is fitted inside the reinforcing cover plate 7A. The attachment base 7 is integrally formed by screwing and fastening to the hole 7e.

Further, in FIG. 6, reference numeral 7g denotes from both ends of the end plate portion 7d in the reinforcing cover plate 7A.
Side plate portions 7i standing upright along the mounting back plate 7h, 7i denote inner side plate portions standing upright along the main body front plate 7j from both side ends of the terminal plate portion 7f of the mounting main body 7B, Thus, in the attachment body 7B, a storage location 7k is defined in which the spring holding traveling body 13 is internally fitted so as to be able to move laterally.

A pair of through-holes 7m formed in the side plate portion 7g and an inner through-hole 7n formed in the inner plate portion 7i are fixedly penetrated by a single spring pressing rod 13a. The left end of the compression spring 14 is pressed. Next, the spring holding traveling body 13 will be described in detail. In the embodiment shown in FIG.
6, a back wall 13c, and left and right side walls 13d are formed in a box shape having a left end opening. A pair of the side walls 13d and a partition wall 13e provided in parallel with each other form three spring insertion holes 13f in FIG. 3 formed and stored in this
As described above, the left end of the compression spring 14 abuts against the spring pressing rod 13a, and the right end thereof presses the pressure receiving rod 13g vertically laid on the side wall 13d of the spring holding traveling body 13. I do.

Therefore, the spring holding traveling body 13
Is located in the storage space 7k, and the side wall 13d slides against the inner wall surface of the inner plate portion 7i of the mounting base 7, thereby compressing the compression spring 14. Side and the side of the lateral opening 1a where the compression spring 14 is in an increased state.

In the present invention, the left end of the link arm 15 is pivotally attached to the spring holding traveling body 13 so as to be rotatable by the shaft pin 15a as described above. 6 is rotatable about the horizontal rotation shaft 8 and is located around the horizontal rotation shaft 8.
The link arm 1 is connected by the pivot pin 15b as shown in FIG.
The right end of 5 is connected to a rotation base 9 a of the rotation arm 9. The free end 9c of the arm 9b of the rotating arm 9 extended from the rotating base 9a.
Is pivotally connected to the lower door 4 by the folding door opening / closing lateral pin 10 as described above.

Here, the link arm 15 is connected to the shaft pin 1.
In FIG. 6, in the center of the right end width of the spring holding traveling body 13, instead of simply forming a through hole, the horizontal elongated groove 13 h is formed by the front wall 5 h. 13b and the back wall 13c, which are formed so as to be open at the right end, and the shaft pin 15a is engaged with the vertically elongated groove 13h so as to be movable in the horizontal direction. Also,
In the gap 9f formed by the turning of the rotating arm 9,
With the right end of the link arm 15 inserted, the link arm 15 is pivotally attached to the turning base 9a by the connecting pivot pin 15b.

Further, the relationship between the rotation arm 9 and the horizontal rotation shaft 8 will be described in detail. FIG. 6 shows that the rotation of the rotation arm 9 is transmitted to the horizontal rotation shaft 8. The locking projection 8a is formed so as to engage with the locking recess 9h of the shaft hole 9g formed in the rotating base 9a.

With respect to the above-mentioned claim 2, the damper mechanism 12 has already been outlined, but the one shown in FIG. 6 can be used together with the damper mechanism 12 according to claim 5 described later. That is, the above-described lateral rotation shaft 8 is coaxially connected to the rotation shaft 12a of the damper mechanism 12 provided at the right end of the mounting base 7, and therefore, in the illustrated example, as described later in detail. When the rotation arm 9 is rotated, a damping action based on a viscous fluid (not shown) in the damper mechanism 12 can exert a buffering action in the closing direction of the folding door 6.

The damper mechanism 12 itself shown in FIG.
In the drawing, 12b is a damper bearing provided on the right side of the mounting body 7B, 12c is a movable disk which is engaged with a rotating shaft 12a and is rotatable.
d is a fixed disk that is adjacent to the movable disk 12c and is prevented from moving, 12e and 12f are O-rings, and 12g is a cover of the damper mechanism 12, and is provided with a reinforcing cover by a set screw (not shown). The plate 7A is fixed via the hole 7p.

Therefore, in the case of the fourth aspect, the same opening and closing operations as those described in the first aspect can be performed, but in the case of the fourth aspect, the vertical folding door 6 shown in FIG. The spring holding traveling body 13 by the compression spring 14 in the compressed state in the closed state as described above.
Of the shaft pin 1 via the link arm 15
Transmitted to the pivot pin 15b which is located between the shaft pin 15a and the horizontal rotation shaft 8 and is arranged slightly above the horizontal line L connecting the shaft 5a and the horizontal rotation shaft 8; Becomes

As a result, the turning base 9a of the turning arm 9 is turned in the direction of the arrow R1 in FIG. 5 by the restoring force of the compression spring 14, so that the lowering of the folding door 6 is suspended. The door 4 is pulled and contacted with the side wall end surface 1d of the folding door mounting body 1 via the rotating arm 9, the folding door opening / closing lateral pin 10, and the washer 4e. When the door is closed, a separate magnet catch or a locking tool is used. Will be kept without any.

Next, if the lower door 4 in the closed state is opened by the opening operation in the same manner as before, as understood from FIG. 6 is rotated in the separating direction, and is opened upward while being bent in a V-shape by the lateral pivot attachment 5, with the connecting pivot pin 15b being lowered below the lateral axis. The rotation shifts, and as a result, the rotation base 9 moves in the direction of arrow R2.
Since a is subjected to the rotational force, the compression spring 14 is extended so that the lower door 4 is assisted to rotate in the opening direction, and therefore, the opening operation of the folding door 6 can be performed with a light force. .

Then, in the same manner as in the first aspect, the elevating folding door 6
Is in the final stage of development, and the horizontal rotating body 8 of the mounting base 7 is
And the horizontal pin 10 for opening and closing the folding door and the horizontal pivot support 5 are arranged in a straight line such as a virtual straight line B, and by the ascending operation passing through this, the door opening state can be freely held. Becomes Here, in the fourth aspect, the connecting pivot pin 15 is used.
b further rotates to the side of the horizontal opening 1a than the horizontal rotation shaft 8, and the rotation force to the rotation base 9a is further increased by the extended compression spring 14 as shown by the arrow R3 in FIG. Acting in the door opening direction with respect to 4, the rotating arm is appropriately assisted, and even after entering the self-holding area, the push-up behavior with easy operation is guaranteed.

The operation when the elevating / folding door 6 in which the opened state is self-held as described above is used for closing the door is substantially the same as that of the first aspect.
Until the compression spring 14 enters at the end of the door closing, the rotation of the elevating / folding door 6 is suppressed, so that the door closing operation is relatively easy to be performed. Of course, if the door reaches the end stage, the lower door is closed. 4 is a compression spring 14 as described above.
, The closed state can be maintained by receiving the door closing force.

According to a fifth aspect, the damper mechanism 12 is added to the configuration of the fourth aspect, similarly to the relationship between the first and second aspects described above. After exiting the state, the elevating folding door 6 can complete the door closing operation by a naturally slow movement without any particular manual operation.

In the case of the sixth aspect, as in the relationship between the first and third aspects, the lower inner side of the lower door 4 is in the self-holding state described in the fourth aspect. 4
At the time of collision between the rotating arm 9 and the inner end 9e of the free end of the rotating arm 9, a buffer Bf which can be pinched between the two parts is provided. Various parts for mounting the folding door 6 are prevented from being damaged by impact.

[0052]

Since the present invention is constructed as described above, according to the first aspect, the opening / closing of the lifting / lowering door by the slide rails and the slide pins which are considered to be indispensable in the conventional lifting / folding door. By removing the regulation mechanism relating to the operation, the overall configuration can be greatly simplified.

And, the mounting base inside the folding door mounting body,
The pivotal arm is pivotally attached to the horizontal rotating shaft, and the free end of the pivotal arm is pivotally attached to the lower door with the folding door opening / closing lateral pin, so that the door can be smoothly opened and closed. Become like Furthermore, by forming a thought state shown as a virtual straight line in the middle of opening the door,
As long as the door is further opened, it is possible to hold the opened state without any effort and to release the hand of the door opening operation without any additional configuration, and the opening of the folding door can be opened. It can be kept as it is. As a result,
The proposal of the lifting / lowering folding door device which does not require the arrangement of the balance weight and the addition of the power mechanism as in the related art can be provided as an inexpensive, simple configuration and high durability.

According to the second aspect, since the damper mechanism is appropriately added to the first aspect, a gentle closing movement can be secured without supporting the elevating / folding door at the time of the closing operation, and the operability can be further improved. According to the third aspect of the present invention, since the shock absorber is disposed at an appropriate position in the structure of the first aspect, even when the door opening operation is considerably violent, the shock absorbing function is effectively provided. It can work and good results are added in terms of operability and durability.

Next, in the case of the fourth aspect, the mounting base of the first aspect is rotated not only by the horizontal rotation shaft but also by the compression spring, the spring holding traveling body, the link arm, the shaft pin, and the connecting shaft pin. With respect to the pivot base of the arm,
Appropriately biasing the restoring force of the compression spring, thus enabling automatic closing of the folding door, enabling the door opening operation to be performed lightly, and also supporting the folding door during door closing operation. By reducing the opening assist force by the compression spring in the door opening state, the unintended large opening force is prevented from being applied.

The fifth and sixth aspects of the present invention are similar to the second and third aspects of the present invention, except that a damper mechanism and a shock absorber are added to the above-described fourth aspect, so that the elevating / lowering door at the time of closing the door is closed. It is possible to guarantee a gentle rotation and descent and prevention of breakage of the elevating / folding door device when the door is opened.

[Brief description of the drawings]

FIG. 1 is an explanatory vertical sectional side view of a lifting / folding door apparatus according to claims 1, 2 and 3 of the present invention.

FIG. 2 is a vertical sectional side view showing a closed state of the ascending and descending door device.

FIG. 3 is a longitudinal sectional side view showing a conceived state in the middle of opening of the ascending and descending door device.

FIG. 4 is a vertical sectional side view showing a self-holding state of the opening / folding door device.

FIG. 5 is a vertical sectional side view showing a closed state of the lifting / folding door device according to claims 4 to 6 of the present invention.

FIG. 6 is an exploded perspective view showing an embodiment of the up-and-down folding door device.

FIG. 7 is a vertical sectional side view showing a conceived state in the middle of opening of the ascending and descending door device.

FIG. 8 is a vertical sectional side view showing a self-holding state of the ascending / folding door device when the door is opened.

FIG. 9 is a schematic side elevational explanatory view showing an operating state of the conventional elevating folding door apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door mounting body 1a Horizontal opening 2 Upper door 2a Upper end 2b Lower end 3 Pivot 4 Lower door 4a Upper end 4d Lower inside 5 Horizontal pivot 6 Lifting folding door 7 Mounting base 8 Horizontal rotating shaft 9 Rotating arm 9a Rotating base 9b Arm 9c Free end 10 Folding door opening / closing horizontal pin 12 Damper mechanism 12a Rotating shaft 13 Spring pressing rod 14 Compression spring 15 Link arm 15a Shaft pin 15b Link shaft pin B Virtual straight line Bf Buffer L Shaft side line

Claims (6)

[Claims] An upper end of an upper door is pivotally attached to an upper portion of a lateral opening of the folding door mounting body so as to be openable in a vertical direction, and an upper end of a lower door is attached to a lower end of the upper door. The vertical folding door is formed by linking the parts with a horizontal pivoting support and connected in a hanging state, and the horizontal opening is closed by the vertical folding door, and the mounting base provided inside the folding door mounting body. A pivot arm is provided so as to be rotatable in the vertical direction by the horizontal rotation shaft, and its free end is pivotally connected to the inside of the lower part of the lower door by a horizontal pin for opening and closing the folding door, thereby raising and lowering the folding door. By moving the horizontal pivot support in the direction away from the folding door mounting body, the lower door and the upper door in the V-shaped bent state are opened upward by the moving operation, and the horizontal opening is opened. It can be opened freely, and it is located at the end of the opening, The directional rotation shaft, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set to a thought state in which they are arranged in a straight line, and the lifting operation of the lifting / folding door is further continued from the thought state. , Whereby the opened state of the door can be freely held by itself. 2. An upper part of an upper door is pivotally attached to an upper part of a lateral opening of the folding door mounting body so that the upper door can freely open in a vertical direction, and a lower end of the upper door is attached to a lower end of the upper door. The vertical folding door is formed by linking the parts with a horizontal pivoting support and connected in a hanging state, and the horizontal opening is closed by the vertical folding door, and the mounting base provided inside the folding door mounting body. A pivot arm is provided so as to be rotatable in the vertical direction by the horizontal rotation shaft, and its free end is pivotally connected to the inside of the lower part of the lower door by a horizontal pin for opening and closing the folding door, thereby raising and lowering the folding door. By moving the horizontal pivot support in the direction away from the folding door mounting body, the lower door and the upper door in the V-shaped bent state are opened upward by the moving operation, and the horizontal opening is opened. It can be opened freely, and it is located at the end of the opening, The directional rotation shaft, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set to a thought state in which they are arranged in a straight line, and the lifting operation of the lifting / folding door is further continued from the thought state. Thereby, the opened state can be freely held, and the horizontal rotating shaft provided on the mounting base of the rotating arm has a damper mechanism having a braking force by viscous fluid in the closing direction of the folding door. An elevating folding door device, wherein a rotating shaft is connected. 3. The folding door mounting body has an upper end of an upper door pivotally attached to an upper portion of the lateral opening so as to be openable in a vertical direction, and a lower end of the upper door has an upper end of a lower door. The vertical folding door is formed by linking the parts with a horizontal pivoting support and connected in a hanging state, and the horizontal opening is closed by the vertical folding door, and the mounting base provided inside the folding door mounting body. A pivot arm is provided so as to be rotatable in the vertical direction by the horizontal rotation shaft, and its free end is pivotally connected to the inside of the lower part of the lower door by a horizontal pin for opening and closing the folding door, thereby raising and lowering the folding door. By moving the horizontal pivot support in the direction away from the folding door mounting body, the lower door and the upper door in the V-shaped bent state are opened upward by the moving operation, and the horizontal opening is opened. It can be opened freely, and it is located at the end of the opening, The directional rotation shaft, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set to a thought state in which they are arranged in a straight line, and the lifting operation of the lifting / folding door is further continued from the thought state. Thereby, the opened state is made self-holding free, and under the self-holding state, at the time of collision between the inside of the lower part of the lower door and the inside of the free end of the rotating arm, between the two parts An elevating / folding door device comprising a clampable buffer. 4. An upper part of an upper door is pivotally attached to an upper part of a lateral opening of the folding door mounting body so that the upper door can be opened vertically, and a lower end of the upper door is connected to an upper end of a lower door. The vertical folding door is formed by linking the parts with a horizontal pivoting support and connected in a hanging state, and the horizontal opening is closed by the vertical folding door, and the mounting base provided inside the folding door mounting body. A spring holding traveling body housed in a state of being urged toward the lateral opening by a compression spring so as to be freely movable in a lateral direction, and pivotally attached to the spring holding traveling body so as to be rotatable by a shaft pin. A link arm that is rotatable up and down on a horizontal rotation axis near a horizontal opening in the mounting base, and is located around the horizontal rotation axis and is connected to the other end of the link arm by a pivot pin. The side is pivoted A rotating arm comprising a rotating base and an arm extending from the rotating base,
The free end is linked to the lower inside of the lower door by a horizontal pin for opening and closing the folding door, and in the above-mentioned closed state of the lifting folding door,
The pressing force of the spring holding traveling body by the compression spring in the compressed state is located between the shaft pin and the horizontal rotation shaft and slightly above the horizontal line connecting the shaft pin and the horizontal rotation shaft via the link arm. Transmitted to the mounted pivot pin, imparts a closing force to the lower arm in the closing direction of the lower door to the rotating arm, and rotates the horizontal pivot support in a direction away from the folding door mounting body by a lifting operation of the lifting / lowering folding door. As a result, the lower door and the upper door, which are in a V-shaped bent state, are opened upward,
The lateral opening is made freely openable, and at the time of the opening, the connecting pivot pin is rotated and displaced below the horizontal axis line to assist the lower door in the opening direction. The length of the compression spring is increased, and at the end side in the course of the opening, the horizontal rotation axis of the mounting base, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set in a conceivable state where they are arranged in a straight line. In this way, from the thought state, by further continuing the raising and lowering operation of the elevating folding door, the opened state of the door becomes self-holding free, and the connecting pivot pin is more than the horizontal rotation axis. An ascending / descending folding door apparatus, wherein a pivoting force in a direction of opening the lower door in a door opening direction is applied to the pivot arm by the rotation of the pivot arm to the side of the lateral opening, with the help of a compression spring that is further extended. 5. An upper part of an upper door is pivotally attached to an upper part of a lateral opening of the folding door mounting body so as to be openable in a vertical direction, and a lower end of the upper door is attached to an upper end of a lower door. The vertical folding door is formed by linking the parts with a horizontal pivoting support and connected in a hanging state, and the horizontal opening is closed by the vertical folding door, and the mounting base provided inside the folding door mounting body. A spring holding traveling body housed in a state of being urged toward the lateral opening by a compression spring so as to be freely movable in a lateral direction, and pivotally attached to the spring holding traveling body so as to be rotatable by a shaft pin. A link arm that is rotatable up and down on a horizontal rotation axis near a horizontal opening in the mounting base, and is located around the horizontal rotation axis and is connected to the other end of the link arm by a pivot pin. The side is pivoted A rotating arm comprising a rotating base and an arm extending from the rotating base,
The free end is linked to the lower inside of the lower door by a horizontal pin for opening and closing the folding door, and in the above-mentioned closed state of the lifting folding door,
The pressing force of the spring holding traveling body by the compression spring in the compressed state is located between the shaft pin and the horizontal rotation shaft and slightly above the horizontal line connecting the shaft pin and the horizontal rotation shaft via the link arm. Transmitted to the mounted pivot pin, imparts a closing force to the lower arm in the closing direction of the lower door to the rotating arm, and rotates the horizontal pivot support in a direction away from the folding door mounting body by a lifting operation of the lifting / lowering folding door. As a result, the lower door and the upper door, which are in a V-shaped bent state, are opened upward,
The lateral opening is made freely openable, and at the time of the opening, the connecting pivot pin is rotated and displaced below the horizontal axis line to assist the lower door in the opening direction. The length of the compression spring is increased, and at the end side in the course of the opening, the horizontal rotation axis of the mounting base, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set in a conceivable state where they are arranged in a straight line. In this way, from the thought state, by further continuing the raising and lowering operation of the elevating folding door, the opened state of the door becomes self-holding free, and the connecting pivot pin is more than the horizontal rotation axis. By turning to the side of the horizontal opening, the turning force of the lower door in the door opening direction is applied to the turning arm with the help of a more extended compression spring, and provided on the mounting base of the turning arm. Horizontal rotation axis The lifting folding door apparatus rotation axis of the damper mechanism having a braking force by the viscous fluid to the closing direction of the lifting folding door is characterized in that it is connected. 6. An upper part of an upper door is pivotally attached to an upper part of a lateral opening of the folding door mounting body so as to be openable in a vertical direction, and an upper end of a lower door is attached to a lower end of the upper door. The vertical folding door is formed by linking the parts with a horizontal pivoting support and connected in a hanging state, and the horizontal opening is closed by the vertical folding door, and the mounting base provided inside the folding door mounting body. A spring holding traveling body housed in a state of being urged toward the lateral opening by a compression spring so as to be freely movable in a lateral direction, and pivotally attached to the spring holding traveling body so as to be rotatable by a shaft pin. A link arm that is rotatable up and down on a horizontal rotation axis near a horizontal opening in the mounting base, and is located around the horizontal rotation axis and is connected to the other end of the link arm by a pivot pin. The side is pivoted A rotating arm comprising a rotating base and an arm extending from the rotating base,
The free end is linked to the lower inside of the lower door by a horizontal pin for opening and closing the folding door, and in the above-mentioned closed state of the lifting folding door,
The pressing force of the spring holding traveling body by the compression spring in the compressed state is located between the shaft pin and the horizontal rotation shaft and slightly above the horizontal line connecting the shaft pin and the horizontal rotation shaft via the link arm. Transmitted to the mounted pivot pin, imparts a closing force to the lower arm in the closing direction of the lower door to the rotating arm, and rotates the horizontal pivot support in a direction away from the folding door mounting body by a lifting operation of the lifting / lowering folding door. As a result, the lower door and the upper door, which are in a V-shaped bent state, are opened upward,
The lateral opening is made freely openable, and at the time of the opening, the connecting pivot pin is rotated and displaced below the horizontal axis line to assist the lower door in the opening direction. The length of the compression spring is increased, and at the end side in the course of the opening, the horizontal rotation axis of the mounting base, the horizontal pin for opening and closing the folding door, and the horizontal pivot support are set in a conceivable state where they are arranged in a straight line. In this way, from the thought state, by further continuing the raising and lowering operation of the elevating folding door, the opened state of the door becomes self-holding free, and the connecting pivot pin is more than the horizontal rotation axis. By rotating to the lateral opening side, by the help of the more extended compression spring, the turning force in the opening direction with respect to the lower door is applied to the rotating arm, and under the self-holding state, Inside and under the lower door When strike the free end portion inside of the rotating arm, lifting Orito device Kyoto freely cushion between the both portions is characterized in that it is So設.