JPH09228726A - Structure of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use main and auxiliary door bodies as sliding doors under normal conditions and to fully open an opening if necessary by locking the main and auxiliary door bodies with each other when moving them as they overlap with each other. SOLUTION: A main door body 4 and an auxiliary door body 5 are arranged with respect to upper and lower rails 2, 3, the main door body 4 serving as a sliding door to freely open and close half of an opening 1. The main door body 4, overlapping with the auxiliary door body 5, moves along a storage rail 11 to fully open the opening 1. A locking part is provided at that end of the main door body 4 where an auxiliary traveling element 8 is provided, and a part to be locked to which the locking part is locked when the auxiliary door body 5 overlaps with the main door body 4 is provided at that end of the auxiliary door body 5 where an upper, auxiliary traveling element 13 is provided. While the main and auxiliary door bodies 4, 5 are moving overlapping with each other, the locking part and the part to be locked are locked to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door structure.

[0002]

2. Description of the Related Art Conventionally, there have been three sliding doors for allowing persons with disabilities to enter and leave a wheelchair.
When a person with a disability moves in and out, the three sliding doors are moved to one end side of the rail so that the three sliding doors are overlapped with each other, and the width of the sliding doors of about two is opened to enter and exit.

[0003]

However, even in the case of the three sliding doors as described above, even if the three sliding doors are moved to one end side of the rails and piled up to be in a fully opened state, almost one sheet still remains. The width of the sliding door cannot be opened, and the entire width of the opening frame cannot be opened as an opening for access, which may make it difficult for a wheelchair to pass through.

Further, there is a problem that it is difficult to carry in and carry out luggage not only when passing through a wheelchair but also when carrying in and out. An object of the present invention is to normally use as a sliding door, but the entire opening frame can be opened as needed, and moreover, the main door body and the sub door body can be easily stacked on the storage rail. The door can be moved along with it to fully open the opening frame, and when the main door and the sub door are used as normal sliding doors, the sub door moves carelessly along the storage rail. There is no to provide a sliding door structure.

[0005]

The structure of the sliding door according to claim 1 of the present invention for solving the above-mentioned problems is to provide an upper rail 2 and a lower rail 3 in an opening frame 1, and to provide a main door body 4 A lower main traveling body 6 that is movably fitted to the lower rail 3 and is not detached from the lower rail 3 is provided at one end of the lower portion, and a lower main traveling body is movably fitted to the lower rail 3 at the other end of the lower portion of the main door body 4. Notch 7 provided at one end of the lower rail 3
A detachable auxiliary traveling body 8 is provided from the outside to the upper rail 2 so that the auxiliary traveling body 8 is detachably attached to the upper surface of the end portion of the main door body 4 on the lower main traveling body 6 side so as not to be detached from the upper rail 2. Main traveling body 9
The sub door body 5 is attached to the front side of the main door body 4 by the slide connecting means 10 so as to be slidable in the lateral direction with respect to the main door body 4 and the sub door body 5 is pulled out from the main door body 4. The sizes of the opening frame 1, the main door body 4, and the sub door body 5 are set so that the main door body 4 and the sub door body 5 close the opening frame 1 in the state.
Of the upper rail 2 corresponding to the end on which the notch 7 is provided is led out forward from the vicinity of one end of the upper rail 2
1 is provided, an upper sub-running body 13 is provided at the end of the upper side of the sub-door body 5 opposite to the upper main running body 9 of the main door body 4, and the upper sub-running body 13 travels on the storage rail 11. Installed freely, main door 4
The engaging portion 40 is provided at the end of the side where the auxiliary traveling body 8 is provided,
An engaged portion 41 with which the engaging portion 40 engages in a state where the main door body 4 overlaps the sub door body 5 is provided at an end portion of the side where the upper sub traveling body 13 of the sub door body 5 is provided. It is characterized by. Then, normally, the auxiliary traveling body 8 is located in the lower rail 3 and the upper auxiliary traveling body 13 is located in the vicinity of an end portion of the upper rail 2 of the storage rail 11, so that the main door body 4 and the sub door body 5 are disposed. And can be arranged in the opening frame 1 like two sliding doors. Then, the main frame 4 is moved along the upper rail 2 and the lower rail 3 to open and close the opening frame 1. The main door 4 is moved until it overlaps with the sub door 5, and the engaging portion 40 is moved. When the main door body 4 is further moved in a state where the main door body 4 is engaged with the sub door body 5 by engaging the engaged portion 41 with the auxiliary door body 8 from the cutout portion 7 to the outside. And the upper sub-running body 13 travels along the storage rail 11, and the upper main running body 9 and the lower main running body 6 of the main door body 4 further move along the upper and lower rails 2 and 3. As a result, the main door body 4 and the sub door body 5 move while being overlapped with each other, and finally the storage rail 11
Thus, the opening frame 1 is almost entirely opened. When the main door body 4 and the sub door body 5 move substantially along the storage rail 11 while being overlapped with each other, the engaging portion 4
Since 0 and the engaged portion 41 are engaged with each other, the main door body 4 and the sub door body 5 do not separate from each other, and the above-described operation can be performed smoothly while maintaining an accurate overlapping state.

Further, a lock means 42 for preventing the end of the sub door 5 on the side of the upper sub traveling body 13 from moving is provided at the end of the side where the upper sub traveling body 13 of the sub door 5 is provided. The locking means 42 is provided so that the main door body 4 moves when the main door body 4 moves.
It is also preferable that the engagement portion 40 is engaged with the engaged portion 41 and then released from the lock receiving portion 43 by being pressed by the engagement portion 40. With such a configuration, when used as a sliding door, the locking means 42 is locked and the upper sub traveling body 13 of the sub door body 5 is locked.
Does not move along the storage rail 11, the auxiliary door body 5 does not fall down even when an external force acts, and it can be stably used as a sliding door.

Further, the vertical moving body 4 in which the locking means 42 can be freely fitted into the lock receiving portion 43 provided on the rail.
4, a spring 45 that elastically biases the vertical moving body 44 toward the lock receiving portion 43 side, and a first spring provided on the vertical moving body 44.
Of the spring 45 and the first inclined surface 46 of
A laterally movable body 48 that is movable in the lateral direction and has a second inclined surface portion 47 that elastically contacts with the spring force of the engaging portion 40.
It is also preferable that the lateral moving body 48 is constituted by a hitting portion 49 which is pushed by the engaging portion 40 to move the lateral moving body 48 in the direction opposite to the pushing direction by the spring force of the spring 45. . With such a configuration, when the main door body 4 is pushed to overlap the sub door door body 5 and the engaging portion 40 is locked to the engaged portion 41, when the main door body 4 is further pushed, the engaging portion 40 is pressed.
Hits the contact portion 49 to push the lateral moving body 48, and the lateral moving body 48 is pushed to push the first inclined surface portion 46 by the second inclined surface portion 47, and the vertical movement is made by pushing the first inclined surface portion 46. The body 44 moves in the lock releasing direction against the spring force of the spring 45 to release the lock.
By pressing, the engaging part 40 is released in the unlocked state.
Can continue to push the contact portion 49 to move the upper sub-running body 13 along the storage rail 11 to move the main door body 4 and the sub-door body 5 along the storage rail 11, and in between. The operation can be performed continuously.

It is also preferable that the contact portion 49 with which the engaging portion 40 abuts is an inclined surface. With such a configuration, the end of the sub door body 5 is moved forward (that is, the storage rail 11) by the engagement portion 40 hitting the inclined surface of the contact portion 49.
The component force of moving the sub door body 5 and the main door body 4 can be smoothly moved to the storage rail 11 side in a state of being superposed on each other.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 14 show one embodiment of the present invention. An opening frame 1 is attached to an opening such as a room partition or a doorway. The opening frame 1 is constructed by arranging an upper rail 2 and a lower rail 3 between the upper and lower sides of the vertical frame members 100 on both sides. The main door body 4 is provided with a lower main traveling body 6 at one lower end, and an auxiliary traveling body 8 is provided at the other lower end of the main door body 4. An upper main traveling body 9 is provided above the end portion where the traveling body 6 is provided. A notch 7 is provided at one end of the lower rail 3. The upper main traveling body 6 is composed of a runner having wheels, and is suspended in the upper rail 2 so as to travel freely.
The lower main traveling body 6 and the auxiliary traveling body 8 are fitted in the lower rail 3 so that they can travel freely. Here, the auxiliary traveling body 8 has a shorter hanging length than the lower main traveling body 6, and
When the auxiliary traveling body 8 comes to the position of the notch 7 at the end of the, the protrusion 7 can jump out from the notch 7.
Therefore, while neither the upper main traveling body 9 nor the lower main traveling body 6 is detached from the upper rail 2 or the lower rail 3, the auxiliary traveling body 8 is attached to the lower rail 3 at the cutout portion 7. It can be detached.

On the front side of the main door body 4, a slide connecting means 1 is provided.
The sub door body 5 is attached so as to be slidable in the lateral direction by 0 to form the door device 12. Slide connecting means 10
Has a configuration as shown in FIGS. 1, 2 and 3.
That is, the slide rails 14a that are long in the lateral direction are provided above and below the surface of the main door body 4 facing the sub door body 5, and the slide rails 14a are provided at the upper and lower portions of the end of the sub door body 5 facing the main door body 4, respectively. Two upper and lower guide wheels 15b are provided, and two upper and lower guide wheels 15b are fitted in the upper and lower slide rails 14a, respectively, and two upper and lower guide wheels 15b are a pair of guide wheels. The guide wheel 15b below the guide wheel 15b is a slide rail 14a.
It can be freely rolled on the bottom surface of. Further, slide rails 15a that are long in the lateral direction are provided above and below the surface of the sub door body 5 facing the main door body 4, respectively. Two upper and lower guide wheels 14b
The guide wheels 14b that are a pair of upper and lower two are fitted into the upper and lower slide rails 14a, respectively.
The guide wheel 1 is provided under the guide wheel 14b, which is a set of two upper and lower parts, and b is rollable on the upper surface of the slide rail 15a.
4b is rollable on the lower surface of the slide rail 15a. By such a slide connecting means 10, the main door body 4 and the sub door body 5 are connected so as to be slidable in the lateral direction.

Here, as shown in FIGS. 2 and 3, the upper and lower slide rails 14a are formed on the upper and lower horizontal rails 60a and 60b themselves which are constituent members of the main door body 4, and the upper and lower horizontal rails 60a and 60b. The slide rail 14a is integrally formed at the same time when the aluminum pieces 60a and 60b are extrusion formed. Further, the upper and lower slide rails 15a are formed on the upper and lower horizontal frames 61a and 61b themselves which are constituent members of the sub door body 5, and slide simultaneously when the upper and lower horizontal frames 61a and 61b are extruded and formed from aluminum. The rail 15a portion is integrally formed. Therefore, the slide rails 14a and 15a do not need to be specially prepared as separate members, and the slide rails 14a and 15a are formed integrally with the constituent members of the main door body 4 and the sub door body 5, so that separate members can be used. The slide accuracy can be improved as compared with the case where the slide mechanism is mounted, the cost can be reduced, and the mounting process of the slide mechanism can be significantly reduced. Further, the guide wheels 14b and 15b are corner blocks 50 incorporated in the ends of the vertical frames 62 and 63 of the main door body 4 and the sub door body 5, respectively.
The wheel shaft is built in and attached to reduce the number of parts. By the way, the guide wheels 14b, 15b
Are arranged in series in the vertical direction, and two become one set,
Since they roll on the upper and lower surfaces inside the slide rails 14a or 15a, respectively, two of them are arranged in series and one is composed of two.
The upper guide wheel of the pair of guide wheels rotates in contact with the upper surface of the slide rail, and the lower guide wheel contacts the lower surface of the slide rail in rotational direction. Will be obtained.

The sub door body 5 is slidably connected to the main door body 4 as described above. Here, when the sub door body 5 is pulled out from the main door body 4, the main door body is pulled out. The sizes of the opening frame 1, the main door body 4, and the sub door body 5 are set so that the body 4 and the sub door body 5 close the opening frame 1. In addition, the main body 4
Also, a sealing piece 30a having elasticity is provided so as to project over the entire length at the lower end portion of the sub door body 5, and when the sub door body 5 is arranged parallel to the lower rail 3, the seal piece 30a shown in FIG. As shown in FIG. 3, the elastic sealing piece 30a abuts the outer surface of the lower rail 3 to perform sealing. Further, the upper rail 2 is provided with a seal piece 30b as shown in FIGS. 2 and 3, and the main door body 4 and the sub door body 5 are provided by the seal piece 30b.
It is designed to be pressed against the upper surface of the to seal. Also,
Although not shown, the main door body 4 is provided with a handle used for opening and closing.

A storage rail 11 is provided so as to extend forward from the vicinity of one end of the upper rail 2 corresponding to the end of the lower rail 3 on which the cutout 7 is provided. Storage rail 1
1 is attached to a wall (not shown) or the like by a support tool (not shown). The storage rail 11 is 9 with respect to the upper rail 2.
It is led diagonally forward with an opening angle slightly wider than 0 °.

One end of the sub door 5 (that is, the guide wheel 15b)
An upper sub-running body 13 constituted by a runner equipped with wheels is provided on the upper part of the end portion on which the upper sub-running body 13 is provided, and the upper sub-running body 13 is suspended on the storage rail 11 so as to travel freely. . Here, the upper main traveling body 9 and the upper sub traveling body 1 described above.
Reference numeral 3 is attached to the main door body 4 and the sub door body 5 by a shaft so as to be horizontally rotatable.

Further, engaging portions 40 are provided so as to project from the upper portion and the lower portion of the end portion of the main door body 4 on which the auxiliary traveling body 8 is provided. On the other hand, in a state where the main door body 4 overlaps the sub door body 5, the upper door and the lower surface of the end portion of the side of the sub door body 5 where the upper sub traveling body 13 is provided face the main door body 4. An engaged portion 41 with which the engaging portion 40 engages is provided. Further, a lock means 42 is provided at the end portion of the side of the sub door body 5 where the upper sub traveling body 13 is provided to prevent the end portion of the sub door body 5 on the side of the upper sub traveling body 13 from moving. .

In the embodiment shown in the accompanying drawings, an engaged portion 41 is provided in a part of the constituent member of the lock means 42. Hereinafter, the engaged portion 41 will be described with reference to FIGS. 9, 10 and 11.
The locking means 42 provided in a part of its constituent members will be described. Locking means 42 are provided respectively on the upper and lower portions of the end of the side of the sub door body 5 on which the upper and lower traveling bodies 13 are provided, but the basic configuration of the upper and lower locking means 42 is only upside down. Since the structure is the same, the description will be made based on the above locking means 42. The corner block 50 provided at the corner portion of the sub door body 5 is provided with a lock means storage space 51. In this lock means storage space 51, an up / down moving body storage section 52 and an up / down moving body storage section 52 opened upward.
And a lateral moving body storage section 53 communicating with the
The lateral moving body storage portion 53 is open in the thickness direction of the corner block 50. The vertical moving body 4 is stored in the vertical moving body storage portion 52.
4 is housed so as to be movable up and down, and the vertical moving body 44 is given a spring force in the direction of projecting upward by a spring 45. A first inclined surface portion 46 whose upper surface is inclined is provided so as to project from a side portion of the vertical moving body 44. On the other hand, the lateral moving body 48 is fitted in the lateral moving body housing portion 53 so as to be movable in the lateral direction. The lateral moving body 48 is provided with a second inclined surface portion 47 whose lower surface portion is an inclined surface, and the first inclined surface portion 46 of the first vertical moving body 44 is laterally moved by the spring force of the spring 45. It is in elastic contact with the second inclined surface portion 47 of the body 48,
As a result, the lateral moving body 48 is pushed and moved in a direction away from the vertical moving body 44, the lateral moving body 48 hits the stopper portion 59 and stops, and this state is the maximum protruding state of the vertical moving body 48. A contact portion 49 is fixed to the lateral moving body 48 by a screw 54, and the corresponding contact portion 49 projects from the side surface of the corner block 50 so as to face the engaging portion 40. The contact part 49 projects from the side surface of the corner block 50 so as to face the engaging part 40 as described above, but the projecting surface of the corresponding contact part 49 is an inclined surface. As shown in FIG. 9, the inclined surface provided on the projecting surface of the contact portion 49 has a shorter projecting length closer to the engaging portion 40 side and a longer projecting length further away from the engaging portion 40. It has a slanted surface. Further, an engaged portion 41 is provided closer to the engaging portion 40 side than the inclined surface of the contact portion 49. Here, the engaging portion 4
At least one or both of 0 to the engaged portion 41 has elasticity.

As described above, the engaged portion 4 is formed on a part of the constituent member.
In the state in which the main door body 4 and the sub door body 5 are both along the upper and lower rails 2 and 3, and the engaging portion 40 does not push over the engaged portion 41 and push the contact portion 49, the locking means 42 provided with 1 is provided. By the spring force of the spring 45, the vertical moving body 44 projects upward to the maximum extent, and the upper end portion of the vertical moving body 44 is fitted into the lock receiving portion 43 provided on the rail (upper rail 2) and is in the locked state. The state in which the upper auxiliary traveling body 13 provided on the auxiliary door body 5 is positioned at the end of the storage rail 11 is maintained. On the other hand, when the main door body 4 is run and the engaging portion 40 elastically rides over the engaged portion 41 to be in the engaged state, and is further pushed in to press the inclined surface of the contact portion 49 by the engaging portion 40, The lateral moving body 48 provided with the contact portion 49 moves laterally, the second inclined surface portion 47 pushes the first inclined surface portion 46, and the first inclined surface portion 46 is pushed, whereby the vertical moving body 44 moves the spring 45. By moving in the unlocking direction (downward in the embodiment) against the spring force of the lock, the lock is released, and the main door body 4 is further pushed. So that the upper sub-running body 13 can be moved along the storage rail 11 by continuously pressing and the main door body 4 and the sub door body 5 can be moved along the storage rail 11 in a state of being overlapped with each other. It has become. In the upper rail 2, the lock receiving portion 43 is integrally formed with a recessed groove portion 43a adjacent to the rail portion 2a on which the upper main traveling body 6 travels. The recessed groove portion 43a serves as the lock receiving portion 43. In the lower rail 2, a lock receiving portion 43 which is a separate member is fixed to the lower rail 2 as shown in FIG.

In the above construction, however, FIG. 4 shows the state in which the opening frame 1 is fully closed and the main door body 4 is pulled out to the side with respect to the sub door body 5. At this time, as shown in FIG. 1, the upper main traveling body 9 is located at one end of the upper rail 2 and the upper sub traveling body 13 is located on the storage rail 11.
Of the upper rail 2 (that is, the end on the one end side of the upper rail 2), and in this state, the vertical moving body 44 of the locking means 42 is fitted into the lock receiving portion 43 and locked. ing. Further, as shown in FIG. 1, the lower main traveling body 6 is located at one end of the lower rail 3 and the auxiliary traveling body 8 is provided.
Is located approximately in the middle of the lower rail 3. In this way, one end side of the main door body 4 and the sub door body 5 connected by the slide connection means 10 is connected to the upper main traveling body 9 and the lower main traveling body 6 on the upper rail 2 and the lower rail 3, respectively. It is supported by being fitted, and the intermediate portion is supported by the auxiliary traveling body 8 being fitted on the lower rail 3, and the other end side is being supported by the upper auxiliary traveling body 13 being fitted on the storage rail 11. At the same time, it is suspended and supported by the upper main traveling body 9 and the upper sub traveling body 13, and the fully closed state is maintained.

Next, from the state shown in FIG. 4, by moving the main door body 4 as the sliding door along the upper and lower rails 2 and 3, approximately half of the opening frame 1 can be opened and closed. next,
When opening the entire opening frame 1, the main door body 4 is pushed in along the upper and lower rails 2 and 3, the main door body 4 is superposed on the sub door body 5, and the engaging portion 40 is set to the engaged portion 41. When the main door body 4 is pushed in from the state shown in FIG. 5 to make the state shown in FIG. 6, and the main door body 4 is further pushed in, the state shown in FIG. State.

That is, the operation will be described in more detail with reference to FIG.
2 is a state before the engaging portion 40 gets over the engaged portion 41, and in this state, as shown in FIG.
The vertical moving body 44 of FIG. 10 protrudes to the maximum and is locked by being fitted into the lock receiving portion 43 as shown in FIG. 10C, but the engaging portion 40 passes over the engaged portion 41 as shown in FIG. When the main door body 4 is further pushed in in this state, the engaging portion 40 hits the inclined surface of the contact portion 49 to move the lateral moving body 48 laterally. Then, the second inclined surface portion 47 pushes the first inclined surface portion 46,
By pushing the first inclined surface portion 46, the vertical moving body 44 moves in the lock releasing direction (downward in the embodiment) against the spring force of the spring 45 (this state is the state of FIG. 11) and the lock is released. Is done. This unlocked state is shown in FIG.
It is shown in (c) and corresponds to the state of FIG. Further, at the position where this lock is released, the auxiliary traveling body 8 provided on the main door body 4 faces the cutout portion 7. Further, by pushing the main door body 4 in the unlocked state, if the engagement portion 40 continues to push the inclined surface of the contact portion 49 in the unlocked state, the sub door body 5 is moved forward (that is, the storage rail). 11 side protruding)
A component force to move the main sub-door body 4 and the sub-door body 5 is moved along the storage rail 11 to move the main door body 4 and the sub-door body 5 as shown in FIG. The auxiliary traveling body 8 facing the cutout portion 7 jumps out of the cutout portion 7 while being moved along with the upper sub-traveling body 13 moves to the tip of the storage rail 11 and The main traveling body 9 moves to the end of the upper rail 2 on the side of the storage rail 11, and the lower main traveling body 6 moves to the end of the lower rail 3 to open the opening frame 1 as shown in FIG. To do. In this way, when the main door body 4 and the sub door body 5 are moved along the storage rail 11, the engaging portion 40 rides over the engaged portion 41 and is in the engaged state. 4 and the sub door 5 are kept in an overlapping state.

From the fully opened state of the opening frame 1 shown in FIG. 8 in which the main door body 4 and the sub door body 5 are arranged along the storage rail 11 as described above, the main door body 4 and the sub door body 5 are placed in the opening frame 1. When and are used as sliding doors, the main door body 4 and the sub door body 5 are moved in an overlapping state to move the upper sub traveling body 13 along the storage rail 11 in the opposite direction. Then, the upper main traveling body 9 and the lower main traveling body 6 are moved along the upper and lower rails 2 and 3, the auxiliary traveling body 8 is put into the lower rail 3 from the cutout portion 7, and the state shown in FIG. 6 is returned. . When the main door body 4 is pulled from the state of FIG. 6, since the upper sub-running body 13 is located at the end of the storage rail 11 and the sub door body 5 does not move, only the main door body 4 moves and the engagement is performed. The portion 40 releases the pressing of the contact portion 49, and further moves over the engaged portion 41 in the engagement releasing direction to move to the main door body 4.
Only this can be used as a sliding door for the opening frame 1. In this case, when the engaging portion 40 releases the pressing on the contact portion 49, the vertical moving body 44 and the lateral moving body 48 are moved by the spring force of the spring 45, and the tip of the vertical moving body 44 is locked by the lock receiving portion 43. The locking means 42 locks the auxiliary door body 5 in such a manner that it does not tilt even if an external force such as falling is applied to the auxiliary door body 5, and the upper auxiliary traveling body does not tilt. It is possible to prevent 13 from moving along the storage rail 11.

In the above embodiment, when the main door body 4 is pulled with respect to the sub door body 5 when the engagement portion 40 is disengaged from the engaged portion 41, the engagement portion 40 through the engaged portion Although the engaging portion 40 to the engaged portion 41 are bent by the elastic force of the portion 41 to release the locking, in the embodiment shown in FIGS. 15 and 16, the end of the main door body 4 is released. The corner block 50 provided at the corner portion is provided with a fitting groove 70 having a circular cross section, the opening portion 71 is provided at the end surface of the corner block 50, and the engaging portion 40 is provided with a cylindrical body 72 having the same diameter as the fitting groove 70. The cylindrical body 72 is rotatably fitted into the fitting groove 70, and the opening 71
The notch 73 is provided by notching one side portion of the engaging portion 40, and the notch 73 is provided so that the opening width of the opening 71 is equal to that of the engaging portion 40.
The width is made slightly wider than the neck portion 74 located inside 1, so that when the engagement portion 40 is unlocked from the engaged portion 41, the main door body 4 is moved to the sub door as shown by the arrow in FIG. When it is pulled with respect to the body 5, the columnar body 72 of the engaging portion 40 slightly rotates in the fitting groove 70, and the neck portion 74 has the cutout portion 73 in the opening portion 71.
Is rotated by an amount corresponding to the position shown by the solid line in FIG.
The elastic force of 0 to the engaged portion 41 makes it easy to disengage when the engaging portion 40 to the engaged portion 41 bends and comes off.

Next, still another embodiment of the present invention will be described with reference to FIG.
19 through FIG. In the present embodiment, the engaged portion 4 provided near the engaging portion 40 side of the contact portion 49.
When the main door body 40 is pushed in from the state shown in FIG. 17, the engaging portion 40 forms an elastic engaged portion 41 as shown in FIG. The projecting piece 90 can easily be overcome.
FIG. 19 shows a state in which the main door body 40 is further pushed in from the state of FIG. 18, and shows the same operation state as in FIG.

[0024]

According to the first aspect of the present invention, as described above, the upper frame and the lower rail are provided in the opening frame, and the lower rail can be freely moved to the lower rail at one end portion of the main door body. A lower main traveling body that is fitted into the lower rail and does not separate from the lower rail is provided, and at the other end of the lower portion of the main door body, a lower main traveling body is movably fitted to the lower rail, and a cutout portion provided at one end of the lower rail is provided outside. A detachable auxiliary traveling body is provided, and an upper main traveling body that is slidably mounted on the upper rail and does not detach from the upper rail is provided above the end on the lower main traveling body side of the main door body. An opening frame is formed between the main door body and the sub door body in a state in which the sub door body is slidably attached to the front door side in the lateral direction with respect to the main door body and the sub door body is pulled out from the main door body. Those who set the size of the opening frame, main door body, and sub door body so as to close the door and provided the cutout part of the lower rail A storage rail that is led out forward from the vicinity of one end of the upper rail that corresponds to the end is provided, and the auxiliary rail is provided at the end opposite to the upper main traveling body of the main door above the sub door. Since the running body is provided and the upper and lower running bodies are movably attached to the storage rail, it is normally used as a sliding door, and when necessary, the main door body and the sub door body are swung in a stacked state. The whole of the opening frame can be easily opened, and furthermore, the engaging portion is provided at the end of the main door on which the auxiliary traveling body is provided, and the main door overlaps with the sub door. Since the engaged portion with which the engaging portion is engaged in the state is provided at the end of the side of the sub door on which the upper sub traveling body is provided, the main door is moved to move the main door and the sub door. The engaging portion and the engaged portion can be engaged with each other by overlapping, and when the main door body and the sub door body are moved substantially along the storage rail while being overlapped with each other, the engagement is performed. And that the engaged portion are engaged, in which it can be operated smoothly without the departing and the Shutotai and Fukuto body.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the upper side of the auxiliary door is provided at the end of the side on which the upper auxiliary traveling body of the auxiliary door is provided. Locking means for preventing the end portion on the sub-traveling body side from moving is provided, and the locking means causes the main door body to overlap with the sub door body due to the movement of the main door body so that the engaging portion becomes the engaged portion. Since it is configured to be unlocked by being pressed by the engaging portion after engaging,
When used as a sliding door, the locking means is locked so that the upper and lower traveling bodies of the sub door do not move along the storage rail, and the sub door does not move even if an external force such as tilting the sub door acts. It does not fall over and can be used as a stable sliding door device.

In addition, in the invention described in claim 3, in addition to the effect of the invention described in claim 2, the locking means includes:
An up-and-down moving body that can be fitted into a lock receiving portion provided on the rail, a spring that elastically biases the up-and-down moving body toward the lock receiving portion, and a first inclined surface portion provided on the up-and-down moving body, A laterally movable lateral moving body having a second inclined surface portion whose first inclined surface portion elastically comes into contact with the spring force of the spring, and a lateral moving body which moves the lateral moving body of the spring by pressing the engaging portion. Since it is composed of a hitting part that is pressed by the engaging part to move in the opposite direction to the pressing direction by the spring force, the lock is released by pressing the hitting part with the engaging part. The locking means can be formed with a simple structure, and
The operation of moving the main door body and the sub door body along the storage rail in a state where the engagement portion and the engaged portion are engaged, unlocked, and unlocked by pushing the main door body Then you will be able to do it.

Further, in the invention according to claim 4, in addition to the effect of the invention according to claim 3, the end portion of the sub door body is moved forward (that is, the engaging portion abuts against the inclined surface of the contact portion). A component force for moving the storage door side) acts, and the auxiliary door body and the main door body can be smoothly moved to the storage rail side in a stacked state.

[Brief description of drawings]

FIG. 1 is a partially omitted front view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a sectional view taken along line YY of FIG. 1;

FIG. 4 is a schematic plan view showing a state in which the above opening frame is fully closed.

FIG. 5 is a schematic plan view showing a state in which substantially half of the above-mentioned opening frame is opened.

FIG. 6 is a schematic plan view showing a state in which the main door body is further pushed in while the engaging portion and the engaged portion are engaged with each other.

FIG. 7 is a schematic plan view showing a state in which the upper auxiliary traveling body of the above is traveling along the storage rail.

FIG. 8 is a schematic plan view showing a state where the above-mentioned opening frame is fully opened.

FIG. 9 shows a state in which lock releasing means and an upper auxiliary traveling body are attached to a corner block used in the same as above, (a) is a plan view, (b) is a front view, and (c) is a side view. is there.

FIG. 10 shows a state in which the above locking means is locked by the lock receiving portion, (a) is a side view, (b) is a plan sectional view, and (c) is a front sectional view.

FIG. 11 shows a state in which the above locking means is unlocked by being disengaged from the lock receiving portion, (a) is a side view, (b) is a plan sectional view, and (c) is a front sectional view. Is.

FIG. 12 is an explanatory view of a state before the engaging portion of the above is engaged with the engaged portion.

FIG. 13 is an explanatory view showing a state in which the above-mentioned engaging portion engages with the engaged portion and pushes the contact portion by the engaging portion.

FIG. 14 is an explanatory view showing a state in which the main door body is further pushed in from the state of FIG. 13 and the abutting portion is pushed by the engaging portion.

FIG. 15 is a cross-sectional view showing another embodiment of the engaging portion of the present invention.

FIG. 16 is an explanatory diagram of an operation of the above.

FIG. 17 is an explanatory diagram showing a state before engaging the engaging portion with the engaged portion according to another embodiment of the present invention.

FIG. 18 is an explanatory view showing a state in which the above-mentioned engaging portion is engaged with the engaged portion.

FIG. 19 is an explanatory view showing a state where the main door body is further pushed in from the state of FIG. 18 above and the abutting portion is pushed by the engaging portion.

[Explanation of symbols]

 1 Opening Frame 2 Upper Rail 3 Lower Rail 4 Main Door Body 5 Secondary Door Body 6 Lower Main Running Body 7 Notch 8 Auxiliary Running Body 9 Upper Main Running Body 10 Slide Connecting Means 11 Storage Rail 12 Door Device 13 Upper Secondary Running Body 40 Engagement part 41 Engaged part 42 Locking means 43 Lock receiving part 44 Vertical moving body 45 Spring 46 Sloping surface part of 1 47 Second slanting surface part 48 Lateral moving body 49 Hitting part

Claims (4)

[Claims] 1. An upper rail and a lower rail are provided in the opening frame,
A lower main running body is provided at one end of the lower part of the main door body so that the lower main running body is movably fitted into the lower rail and does not separate from the lower rail. An auxiliary traveling body that can be detached from the cutout provided at one end of the rail is provided to the outside, and it is slidably mounted on the upper rail at the upper end of the main door body on the side of the lower main traveling body so that it can travel from the upper rail. An upper main running body that does not separate is provided, and the sub door is slidably attached to the front side of the main door by means of the slide connection means so that the sub door can be pulled out from the main door. Set the size of the opening frame, the main door body, and the sub door body so that the main door body and the sub door body block the opening frame in the closed state, and correspond to the end of the lower rail notch A storage rail that is led out forward from one end of the upper rail is provided, and The upper sub-running body is provided at the end opposite to the upper main running body, the upper sub-running body is movably attached to the storage rail, and the main door body is provided with the auxiliary running body at the end thereof. An engaging portion is provided, and an engaged portion with which the engaging portion engages in a state where the main door body overlaps the sub door body is provided at an end portion of the side where the upper sub traveling body of the sub door body is provided. Sliding door structure featuring. 2. A lock means for preventing movement of an end portion on the side of the upper sub-traveling body of the sub-door body is provided at an end portion of the side where the upper sub-traveling body of the sub-door body is provided. , The main door body is superposed on the sub door body by the movement of the main door body, and the engaging portion is engaged with the engaged portion and then the engaging portion is pressed to release the lock. The structure of the sliding door according to claim 1, wherein: 3. A vertical moving body, wherein the locking means is freely fitted into a lock receiving portion provided on a rail, a spring for elastically urging the vertical moving body toward the lock receiving portion side, and a vertical moving body. A laterally movable lateral moving body provided with a first inclined surface portion provided and a second inclined surface portion with which the first inclined surface portion elastically contacts by the spring force of the spring, and pressing of the locking portion. 3. The contact member is operated by the engaging portion to move the lateral moving body in a direction opposite to the direction in which the lateral moving body is pressed by the spring force of the spring. Sliding door structure. 4. The structure of the sliding door according to claim 3, wherein the contact portion with which the engaging portion abuts is an inclined surface.