Airtight structure for double swing door device

Abstract

To prevent airtightness from being impaired in a structure in which a partition 1 partitions a use room X and equipment room Y using parent and child doors 2 and 3 that open to the left and right, when the child door 3 is provided with a meeting member 11 widened on the equipment room Y side so that a lock device 12 can be installed therein.SOLUTION: A lock rod 12d of the lock device 12 is arranged to be located closer to the use room X side than the equipment room side door panels 2e, 3e of the parent and child doors 2, 3, while forming cutouts 11e at both upper and lower edge portions of the widened meeting member 11 to airtightness from being impaired.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to the technical field of airtight structures in double door devices that are installed to open and close various entrances, such as entrances between indoors and outdoors and entrances provided in partitions that separate indoor spaces. [Background technology]

[0002] Nowadays, indoor spaces in buildings such as buildings and condominiums are sometimes divided into rooms (usage spaces, normal use rooms) that are normally used, such as living spaces and office spaces, and equipment rooms (equipment spaces, equipment rooms) that store equipment (supplies) such as various devices and tools, such as air conditioners, and partitions (partition devices) are known as a partitioning means used in such cases. In such cases, it is necessary to perform work such as maintenance of the equipment stored in the equipment room, and for this reason, the panel body that constitutes the partition is composed of a door body (door body) that can be opened and closed, and in this case, a pair of adjacent panel bodies on the left and right may be used as a double-door (double-door) device, with a parent-child door. By the way, although it is not a parent-child door, there is known a door in which the leading edges of a swing door that opens first and a sliding door that opens afterwards are brought into a mating state when closed (see Patent Document 1, for example). In this door, a mating part is provided at the leading edge of the sliding door, and an abutment piece provided at the leading edge of the swing door abuts against the mating part from the use room side in a state in which an airtight material is interposed, so that the leading edges can be closed in a state in which airtightness is ensured when closed. When such a structure is used as a partition to separate a use room from an equipment room, it is required to take care that noise generated from equipment such as air conditioning equipment installed in the equipment room does not leak into the use room side, and for this purpose, it is required that not only the mating part but also the upper and lower end edges of the swing door and the sliding door are closed in a state in which airtightness is ensured. Therefore, in the conventional type, the joint part is made flush with the door face on the side of the closing movement, so that when the door is closed, the door faces of the upper and lower edge parts of the swing door and sliding door abut against the airtight material provided on the main body side, ensuring airtightness. This structure of the joint part is proposed to be used for parent-child doors, but the conventional one has a locking device installed on the leading edge of the hinged door. Therefore, if a locking device is installed on one of the parent-child doors following this, the door on which the locking device is installed must have a structure for the leading edge of the door, which goes against the idea of ​​standardizing the structure of the door body. However, the conventional locking part is cylindrical, and it has been proposed to install a locking device inside the cylinder of the locking part, which moves vertically to protrude from the upper and lower edges of the sub-door and insert a locking rod into the upper and lower locking holes provided at the entrance, but there is a problem that the dimensions inside the cylinder are small and it is not possible to install a locking rod inside. In response to this, it has been proposed to install a locking device inside the sub-door (for example, see Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-97947 A [Patent Document 2] JP 2000-96945 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the lock rod is installed in the child door, the shape of the door front edge of the parent and child doors needs to be such that the lock rod of the locking device can be installed in the child door so that it can move up and down freely, whereas the parent door does not need to be configured in this way, and therefore the parent door and the child door have to have different structures for the door front edge.Furthermore, the hinged door installed in the partition may be a single door type rather than a double door type, in which case door bodies with different structures for the door front edge must be manufactured for the single door and double door, which results in an increase in the number of door bodies used to construct the partition, making manufacturing more complicated and causing problems such as poor workability, and these are the issues that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention has been created in view of the above-mentioned circumstances and with the objective of solving these problems. The invention of claim 1 relates to a double-leaf door device that is configured so that a pair of parent and child doors with double-leaf specifications that are adjacent to each other on the left and right to open and close an entranceway abut the upper and lower frame members of the entranceway on the side in the direction of closing movement, and abutment pieces provided on the leading edge of the parent door abut against the joint portion provided on the child door, thereby enabling airtight closure at both the upper and lower ends and the joint portion, and by protruding the joint portion in the direction of closing movement of the child door, the double-leaf door device is configured so that the joint portion is widened in the direction of closing movement of the child door. The lock rod of the locking device is configured to move vertically within the joint portion of the cylinder and protrude from the upper and lower edges of the child door to be inserted into lock holes provided above and below the entrance, and the joint portion has cutouts formed at both the upper and lower edges of the part that protrudes in the closing movement direction so that it abuts against airtight material provided on the upper and lower frame members of the door surface when the parent-child door is closed, while the lock rod is configured to be installed within the joint portion in a state where it is positioned on the opening movement side of the door surface of the parent-child door in the closing movement direction. This is an airtight structure for a double-leaf door device. The invention of claim 2 is an airtight structure in the double-leaf door device described in claim 1, characterized in that a guide member for guiding the up and down movement of the lock rod is provided on the upper and lower edge portions where the cutout portion of the joint portion is formed, in a state where it does not protrude from the door surface on the side of the closing movement direction of the parent-child door. The invention of claim 3 is an airtight structure in a double-leaf door device as described in claim 2, characterized in that the guide member is provided with a vertical plate material that closes the cutout portion and abuts against airtight material provided on the upper and lower frame members. Effect of the Invention

[0006] By adopting the invention of claim 1, a parent-child door with double-opening specifications for opening and closing an entrance and exit is configured so that the abutment piece provided on the leading edge of the parent door abuts against the joint provided on the child door, thereby enabling airtight closure at the joint.In this case, the joint is tubular and widened in the direction of the closing movement, so that the lock rod of the locking device can be installed in the joint with ample space, eliminating the need to install the locking device on the child door side.As a result, the leading portions of the parent-child doors can be made the same shape (symmetrical shape), thereby simplifying the structure. In this case, cutouts are formed on both the upper and lower end edges of the part of the locking portion that protrudes in the closing movement direction, so that when the parent-child door is closed, the protruding part of the locking portion does not get in the way and the door surface can be closed in a state where airtightness is maintained against the upper and lower frame members.In this case, the locking rod is installed inside the locking portion in a position closer to the opening movement direction than the door surface on the closing movement direction side of the parent-child door, so that the locking and unlocking operation of the locking rod is not affected and smooth locking operation can be performed. By adopting the invention of claim 2, a guide member for guiding the up and down movement of the lock rod is provided at the upper and lower edge portions where the cutout portion of the joint portion is formed, in a state in which it does not protrude from the door surface on the side of the closing movement direction of the parent-child door.As a result, the guide member can be attached in a state that does not affect the maintenance of airtightness when the parent-child door is closed. By adopting the invention of claim 3, the vertical plate material attached to the guide member that guides the lock rod closes the cutout portion and abuts against the airtight material attached to the upper and lower frame members. As a result, the closing member that maintains airtightness in the cutout portion doubles as the guide member, thereby reducing the number of parts. [Brief description of the drawings]

[0007] [Figure 1] (A) and (B) are front and rear views of the partition. [Diagram 2] FIG. [Diagram 3] This is a cross-sectional plan view of the partition with the main door open. [Figure 4] 13(A) and 13(B) are vertical cross-sectional side views of the main door and the secondary door. [Diagram 5] This is a vertical cross-sectional side view of the joint area. [Figure 6] This is a rear view of the lower frame portion of the parent-child door. [Figure 7] This is an enlarged vertical cross-sectional side view of the upper and lower end portions of the joint area. [Figure 8] FIG. 2 is an enlarged perspective view of the vertical cross section of the upper and lower ends of the joint area. [Figure 9] 1A and 1B are enlarged cross-sectional plan views of the end portions of the parent and child doors. [Figure 10] This is an enlarged cross-sectional plan view of the mating portion of the parent-child door. [Figure 11] (A)(B)(C) are a front view, a side view, and a plan view of the equipment room half with the mating locking device installed. [Figure 12] 1A, 1B, and 1C are enlarged front, side, and plan views of the upper end portion of the equipment room half with the lock device installed, and 1D is a plan view of the guide member portion. [Figure 13] 1A, 1B, and 1C are a front view, a side view, and a plan view of a guide member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a partition for dividing an indoor space of a building into front and rear, and the partition 1 is provided to divide the indoor space into a room X that is normally used, such as a living space or an office space, and an equipment room Y that houses various devices such as an air conditioner and other equipment, tools, and other facilities, into front and rear. The partition 1 in this embodiment is configured with a pair of adjacent left and right panel bodies as double-hinged parent-child doors 2, 3 to open and close the entranceway E formed between the use room X and the equipment room Y, and the parent-child doors 2, 3 are each pivotally supported by hinges 5 at their outer left and right edge portions (door tail sides) on a square-shaped door frame 4 provided at the entranceway E, so that the parent-child doors 2, 3 can be opened toward the use room X with the opening movement side facing the use room X and the closing movement side facing the equipment room Y. Incidentally, the partition 1 in this embodiment is composed of a pair of left and right panel bodies which become the parent-child doors 2 and 3, but it goes without saying that the partition 1 may also have further panel bodies provided flush or curved on either the left or right side or both sides of the parent-child doors 2 and 3.

[0009] To explain the parent-child doors 2, 3 in more detail, the parent-child doors 2, 3 are formed symmetrically and comprised of vertical frames 2a, 3a on the outer door end (door end) side on the left and right direction, vertical frames 2b, 3b on the inner door tip (door tip) side on the left and right direction, upper and lower horizontal frames 2c, 3c, door panel panels 2d, 3d on the use room X side which is the side on which the door moves to open, door panel panels 2e, 3e on the equipment room Y side which is the side on which the door moves to close, and core materials 2f, 3f filled inside the door, and the ends of the door end side vertical frames 2a, 3a on the use room X side are journalled via hinges 5 to be able to swing freely on the left and right vertical frames (vertical door frames) 4a that constitute the door frame 4.

[0010] In this case, the vertical frames 2a, 3a on the door end side of the parent-child doors 2, 3 are configured with: frame surface portion on the use room side (which is a short end piece at the door end side) 2aa, 3aa, frame surface portion on the equipment room side 2ab, 3ab, frame surface portion on the door end side 2ac, 3ac, frame surface portion on the door end side 2ad, 3ad, extended frame surface portions 2ae, 3ae extending from the use room X-side edge of the frame surface portion on the door end side 2ad, 3ad while being bent outward in the left-right direction, and step surface portions 2af, 3af bent in an L shape from the door end side edge portion of the equipment room side frame surface portion 2ab, 3ab by a portion facing in the front-to-back direction on the door end side and a portion facing in the left-to-right direction on the door end side so as to narrow the front-to-rear width of the vertical frames 2a, 3a on the door end side. The hinge 5 is configured such that one of the blade portions 5a is fixed with a screw to one portion of the door end side of the step surface portions 2af, 3af, and the other blade portion 5b is fixed with a screw to the left and right vertical frames 4a, and the pivot support portion 5b is arranged between the user room side portion 4aa of the left and right vertical frames 4a and the extended frame surface portions 2ae, 3ae.

[0011] In contrast, the door front vertical frames 2b, 3b provided on the parent-child doors 2, 3 are configured with: a frame surface portion on the use room side (which is a short end piece at the door end side) 2ba, 3ba, a frame surface portion on the equipment room side 2bb, 3bb, a frame surface portion on the door end side 2bc, 3bc, a frame surface portion on the door front side 2bd, 3bd, extended frame surface portions 2be, 3be which extend from the use room side edge of the frame surface portion on the door front side 2bd, 3bd while being bent inwardly in the left-right direction, and step surface portions 2bf, 3bf which are bent in an L shape from the door front side edge portion of the frame surface portion on the equipment room side 2bb, 3bb so as to narrow the front-to-rear width of the door front vertical frames 2b, 3b. In addition, in this embodiment, the upper and lower horizontal frames 2c, 3c are both rectangular tubular in shape with a frame surface portion 2ca, 3ca on the use room side and a frame surface portion 2cb, 3cb on the equipment room side, and of these, the use room side frame surface portion 2ca, 3ca has upper and lower extending piece portions 2cc, 2cc, 3cc, 3cc attached thereto, which extend outward in the vertical direction and face the upper and lower horizontal frames (ceiling rails, floor rails) 4b, 4b that constitute the door frame 4 from the use room X side.

[0012] When the parent-child doors 2, 3 thus constructed are closed, the equipment room side frame surface parts 2ab, 3ab of the door end vertical frames 2a, 3a face the left and right frame panels 4c, 4c provided on the equipment room side parts 4ab, 4ab of the left and right vertical frames 4a, 4a, and the equipment room side frame surface parts 2cb, 3cb of the upper and lower horizontal frames 2c, 3c face the upper and lower frame panels 4d provided on the equipment room side parts 4bb of the upper and lower horizontal frames 4b, 4b. In this closed state, the door end vertical frame 2a maintains its airtightness by abutting against the airtight materials 6, 6a provided on the door end vertical frame 4a and the left and right frame panels 4c, and the airtight seal material 7 provided on the door tip side edge part of the left and right frame panels 4c. Incidentally, the airtight material 6 is provided so as to be divided into two parts: a surface portion 4ac on the entrance E side of the trailing edge vertical frame 4a, and a trailing edge frame surface portion 2ad of the trailing edge vertical frame 2a.

[0013] Furthermore, in the closed state, the upper and lower horizontal frames 2c, 3c of the parent-child doors 2, 3 have the upper and lower extension pieces 2cc, 3cc provided on the upper and lower horizontal frames 2c, 3c facing the user room side surface portion 4ba of the upper and lower horizontal frames 4b, 4b, and the equipment room side surface portion 2cb, 3cb of the upper and lower horizontal frames 2c, 3c facing the upper and lower frame panels 4d provided on the equipment room side surface portion of the upper and lower horizontal frames 4b, 4b. Airtightness is maintained between the upper and lower extension pieces 2cc, 3cc and the user room side surface portions 4ba, 4ca of the upper and lower horizontal frames 4b, 4b by the airtight seal material 8 provided on the upper and lower horizontal frames 4b, 4b, and airtightness is maintained between the equipment room side surface portions 2cb, 3cb of the upper and lower horizontal frames 2c, 3c facing the upper and lower frame panels 4d by the airtight seal material 9 provided on the upper and lower frame panels 4d. Incidentally, the left and right frame panels 4c and the upper and lower frame panels 4d in this embodiment correspond to the "upper and lower frame members" of the present invention.

[0014] Next, the structure of the meeting area located on the door end side of the parent-child doors 2 and 3 will be explained. A joint member (corresponding to the "joint member" of the present invention) 11 is provided on the front vertical frame 3b of the child door 3, and the joint member 11 is configured in a square tube shape with a use room side half 11a and an equipment room side half 11b, and is attached to the step surface portion 3bf of the front vertical frame 3b of the child door 3 via a screw 11c inserted from the end side of the equipment room side half 11b through the use room side half. The airtightness is maintained between the extension frame surface portion 3be of the front vertical frame 3b and the use room side portion 11aa of the joint member 11 by the airtight material 6b provided on the extension frame surface portion 3be. The usage room side half 11a and the equipment room side half 11b are further fixed together by a screw 11d which is different from the screw 11c.

[0015] When the parent and child doors 2 and 3 are closed, the extended frame surface portion 2be (corresponding to the "contact piece portion" of the present invention) formed on the vertical frame 2b on the door front side of the parent door 2 abuts against the use room side portion 11aa of the joint material 11 from the use room X side. Between the extended frame surface portion 2be and the joint material 11, the airtight material 6c provided on the extended frame surface portion 2be of the parent door 2 abuts against the use room side portion 11aa of the joint material 11, and the airtight seal material 10 provided in the seal material pocket 11e formed in the use room side half portion 11a abuts against the step surface portion 2bf of the parent door 2, thereby maintaining airtightness through a two-stage abutment. By being configured in this manner, when the parent and child doors 2, 3 are closed, airtightness is maintained in all areas other than the upper and lower edge portions of the fitting material 11 on the equipment room side, as will be described later.

[0016] Furthermore, a pair of upper and lower locking devices 12 are provided on the locking member 11. The locking device 12 used in this embodiment is what is known as a French drop lock, in which an operating body 12a is provided and a lock case body 12b which is U-shaped when viewed from above is externally fitted into the locking member 11 from the equipment room Y side and fixed via screws 12c. A lock rod 12d connected to the operating body 12a is installed inside the cylinder of the locking member 11 so as to be freely movable in the vertical direction. When the operating body 12a is operated to lock, the tip edge of the lock rod 12d protrudes from the upper and lower edges of the sub-door 3 and can be inserted into the lock hole 4e provided in the upper horizontal frame 4b, thereby enabling locking.

[0017] The locking device 12 thus constructed is incorporated into the interlocking material 11 in a state in which it is biased toward the equipment room Y side, which has a wider cross-sectional area than one without the protrusion, by making the interlocking material 11 protrude toward the equipment room Y side, but in this case, the position of the lock rod 12d in the interlocking material 11 is configured to be located on the use room X side rather than the equipment room side door panel 3e of the child door 3. The interlocking material 11 thus incorporated with the locking device 12 has cutout portions 11e cut out so as to be flush with the equipment room side door panel 3e of the child door 3 at both upper and lower end edges that face the upper and lower frame panels 4d of the equipment room side portion 11ba.

[0018] Furthermore, guide members 13 for guiding the vertical movement of the lock rod 12a are installed at both the upper and lower end edges of the joint portion 11. The guide member 13 is U-shaped when viewed in a plane and has a spanning piece portion 13a and two leg pieces 13b, 13c of different lengths. The leg pieces 13b, 13c are attached and fixed in a state in which they are fitted into the joint material 11 via screws 13d. By being configured in this manner, the guide member 13 does not protrude from the equipment room side door panel 3e of the sub-door 3. The guide member 13 is formed with a guide piece portion 13e which is bent horizontally from one of the long leg portions 13c along the spanning portion 13a, and the guide piece portion 13e has a guide hole 13f through which the lock rod 12d passes and which guides the vertical movement. The spanning portion 13a of the guide member 13 configured in this manner is positioned in contact with the equipment room side portion 11ba of the cutout portion 11e of the joint material 11 from the user room side, so that the cutout portion 11e is blocked by the spanning portion 13a. When the parent and child doors 2, 3 are closed, the airtight seal material 9 provided on the upper and lower frame panels 4e abuts against the spanning portion 13a, thereby maintaining airtightness at the cutout portion 11e of the joint material 11. In addition, reference numeral 14 denotes a locking device for the parent door to lock the parent door 2 to the closed child door 3, which is provided on the parent door 2 side and is configured to lock when a latch piece 14a provided on the device 14 engages with a latch hook 14b provided on the child door 3 side.

[0019] In the present embodiment configured as described, the parent and child doors 2, 3, which are of double-leaf specification for opening and closing the entrance E, have an extended frame surface portion 2be formed on the tip edge of the door-front vertical frame 2b of the parent door 2, which acts as an abutting piece and abuts against the use room side portion 11aa of the fitting material 11 provided on the child door 3, so that the door-front vertical frame 2b and the fitting material 11 can be airtightly closed by the airtight material 6c and airtight seal material 10 interposed between them. The locking member 11 thus constructed can be made cylindrical and widened toward the equipment room Y side, with the locking rod 12d of the locking device 12 fitted inside. As a result, there is no need to provide the locking device 12 on the child door 3 side, and the door tip portions of the parent-child doors 2 and 3 can be made to have the same shape (symmetrical shape), thereby simplifying the structure of the parent-child doors 2 and 3.

[0020] In this case, even if the joint member 11 is a protruding member that is wider toward the equipment room Y, the joint member 11 has cutout portions 11e formed at both upper and lower end edges, so that when the parent-child doors 2 and 3 are closed, the cutout portions 11e of the joint member 11 abut against the upper and lower frame panels 4d, thereby maintaining airtightness. Furthermore, the lock rod 12d is installed within the fitting material 11 in a position closer to the room X than the equipment room side door panels 2e, 3e of the parent and child doors 2, 3, so that the locking and unlocking operation of the lock rod 12d is not affected, allowing for smooth locking operation.

[0021] Furthermore, in this device, a guide member 13 for guiding the vertical movement of the lock rod 12d is provided at the upper and lower edge portions where the cutout portion 11e of the joint material 11 is formed. However, the guide member 13 is provided in a state in which it does not protrude from the equipment room side door panel 2e, 3e of the parent-child doors 2, 3, so that the guide member 13 is attached in a state in which it does not affect the airtightness of the parent-child doors 2, 3 when closed. Furthermore, the spanning portion 13a, which is a vertical plate member provided on the guide member 13 that guides the lock rod 12d, abuts against the airtight seal 9 provided on the upper and lower frame panels 4d when the cutout portion 11e is closed, thereby maintaining airtightness.As a result, the member for maintaining airtightness in the cutout portion 11e becomes the guide member 13 and is used for both purposes, thereby reducing the number of parts. [Industrial Applicability]

[0022] INDUSTRIAL APPLICABILITY The present invention can be used as an airtight structure in a double-leaf door device provided for opening and closing various entrances, such as indoor and outdoor entrances and entrances provided in partitions that separate indoor spaces. [Explanation of symbols]

[0023] 1 Partition 2 Main door 2a Door end vertical frame 2b Door end vertical frame 2ba Usage room side stile surface part 2bb Equipment room side stile surface part 2be Extending stile surface part (contact surface part) 2c Upper and lower horizontal stile 2d Room side door plate 2e Equipment room side door plate 3. Child door 3a Door end vertical frame 3b Door side vertical stile 3ba Usage room side stile surface part 3bb Equipment room side stile surface part 3c Upper and lower horizontal stile 3d room side door plate 3e Equipment room side door plate 4 Door Frame 4a Left and right vertical frames 4b Top and bottom horizontal frames 4d Upper and lower frame panels (upper frame members) 4e Lock hole 9. Airtight sealant (airtight material) 11. Mixed materials 11e Cutout 12 Locking device 12d lock rod 13 Guide member 13a Spanning section (vertical board) E Entrance / Exit X room Y equipment room

Claims

1. A double-door device is configured such that a pair of double-leaf doors are adjacent to each other on the left and right to open and close an entranceway, and the flush door surfaces of the double-leaf doors in the direction of closing movement abut against the upper and lower frame members of the entranceway, and abutment pieces provided on the leading edge of the parent door abut against a joint provided on the child door, thereby enabling airtight closure at both the upper and lower ends and the joint. The locking mechanism is a locking device that moves in the vertical direction and protrudes from the upper and lower edges of the sub-door to be inserted into lock holes provided above and below the entrance. The door is closed by a door frame member that is attached to the upper and lower ends of the door. The door is then closed, and the door is then closed again.

2. The airtight structure in the double-leaf door device according to claim 1, characterized in that a guide member that guides the up and down movement of the lock rod is provided at the upper and lower edge portions where the cutout portion of the joint portion is formed, in a state that it does not protrude from the door surface on the side of the closing movement direction of the parent-child door.

3. 3. The airtight structure in a double-door device according to claim 2, wherein the guide member is provided with a vertical plate member that closes the cutout portion and abuts against the airtight material provided on the upper and lower frame members.

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