Door devices in partitions

Abstract

In a configuration where the locking device 12 of a door panel body 2 installed in a partition 1 is installed on the door-side support post 3 on the building structure side, the lock tip 12b exposed from the surface-side visible portion 3a of the door-side support post 3 is made inconspicuous while not interfering with the locking and unlocking operation of the lock tip 12b by inserting the key K. [Solution] An extension portion 8a on the door edge side is formed on the surface plate 8 of the door panel body 2 so as to cover the door edge side portion of the lock tip portion 12b. A key window portion X is formed by cutting out the portion of the door edge side extension portion 8a corresponding to the lock tip portion 12b, and the key window portion X is covered by a window plate material 13 attached via a hinge 14 so as to be openable and closable.

Description

[Technical Field]

[0001] The present invention relates to the technical field of door devices for partitions provided for partitioning the indoor space of a building such as a building into front and rear sections. [Background Art]

[0002] Generally, partition panels are provided to partition the indoor space of a building such as a building. Among such partition panels, when the indoor space is, for example, an office, some are provided to partition between a work room where people perform work such as office work, operations, and meetings, and a machine room (equipment room) that accommodates equipment such as air conditioning equipment. In such partition panels, in order to perform work such as maintenance of equipment arranged in the machine room, the panel body constituting the partition panel (if there are a plurality of such panel bodies, part or all of the panel bodies) is made an openable and closable door panel body. However, configuring such an openable and closable door panel body to allow anyone to freely open and close it is not preferable from the perspective of management. Therefore, in such cases, it is required to provide a locking device to lock the openable and closable door panel body, and manage such that only an administrator who holds a key can open and close the door panel body. In such cases, a configuration has been proposed in which the locking device is provided on the frame-side support column, and the lock tip portion formed with a keyhole is exposed so that an unlocking operation can be performed from the front-facing surface on the surface side of the frame-side support column (see, for example, Patent Document 1). [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2012-67469 [Summary of the Invention] [Problems to be Solved by the Invention]

[0004] However, the aforementioned conventional locking device, being a partition, required that the lock tip with the keyhole be made as inconspicuous as possible. Therefore, the surface plate of the door panel was made to have an extension that extended to the structural support column, while the structural support column had a support column side surface plate with a joint (gap) between it and the extension. The locking and unlocking operation of the locking device was performed by inserting the key into the keyhole through this joint. However, in order to make the joint width narrow, both the left and right ends of the lock tip with the keyhole were covered in such a way that the keyhole could be seen through the joint. Therefore, in order to enable the key to be inserted into the keyhole while penetrating a narrow joint, and to enable locking and unlocking operations by turning the key inserted into the keyhole, the key must have a special shape that is narrow and rod-shaped, and it is not possible to use a wide, plate-shaped key that is versatile like that of a cylinder lock. These are the problems that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention was created in view of the above circumstances and with the aim of solving these problems, and the invention of claim 1 provides a partition that divides an interior space into front and back sections, comprising a door panel that can be opened and closed, and a locking device for locking the door panel comprising a lock body attached to the door-side support post, and a lock tip that extends from the lock body and fits into a keyhole drilled in the surface of the door-side support post, and by turning a key inserted into the keyhole formed in the lock tip, a latch provided on the lock body can engage and disengage with a latch provided on the door-side edge of the door panel. In a door device for a partition, configured to allow the door panel to be locked by locking, the surface plate of the door panel is provided with an extension that extends to the visible surface portion of the door-side support post, wherein the extension extends to a portion that covers all or part of the tip of the lock, and the extension is provided with a key window portion that opens the portion of the extension that covers the tip of the lock, allowing the key inserted into the keyhole to be turned, and the key window portion is provided with a window plate material that allows the key window portion to be opened and closed. The invention of claim 2 is a door device for a partition according to claim 1, characterized in that the window panel is pivotably attached to the door edge side of the door panel body via a hinge so as to be able to open and close the lock window portion. The invention of claim 3 is a door device in a partition according to claim 2, characterized in that the window panel is biased via an elastic mechanism provided on the hinge to return the window panel from an open position to a closed position. The invention of claim 4 is a door device for a partition according to any one of claims 1 to 3, characterized in that the visible surface portion of the door-side support post is provided with a structural-side surface plate that faces the tip edge of the extension portion via a joint, without reaching the keyhole. The invention of claim 5 is a door device in a partition according to claim 4, characterized in that the extended portion extends at least to a portion that covers the keyhole at the tip of the lock, and the window plate covers the keyhole in the closed position. [Effects of the Invention]

[0006] By adopting the invention of claim 1, when the locking device for locking the door panel body constituting the partition is provided with the lock body portion attached to the door-side support post on the building structure side, the extension portion provided on the surface plate of the door panel body extends to a portion that covers all or part of the tip of the lock. In this case, a key window portion is provided on the extension portion, so that the covering portion of the tip of the lock is opened and the operation of turning the key inserted into the keyhole is permitted. However, since the key window portion is closed so that it can be opened and closed by a window plate, even if the locking device requires a wide plate-shaped key that is highly versatile, such as a cylinder lock, the locking and unlocking operations of the locking device can be performed without any problems by opening the window plate. By adopting the invention of claim 2, the lock window portion provided on the door panel body side via a hinge can be opened and closed using a window plate, thereby improving operability. By adopting the invention of claim 3, the window panel is biased toward the closed position, thus eliminating the possibility of forgetting to close it. As a result of the invention of claim 4, the extended portion faces the structural side surface plate provided on the surface side of the door-side support post via a joint, making it a partition that does not look out of place and does not impair visibility. By adopting the invention of claim 5, the extended portion extends at least to the part that covers the keyhole at the tip of the lock, and as a result of the window plate covering the keyhole in the closed position, the keyhole is not directly visible from the joint under normal circumstances and is covered and protected by the window plate, effectively preventing dust and other foreign matter from adhering to or entering the keyhole. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view of the partition. [Figure 2] This is a cross-sectional plan view of the partition wall. [Figure 3] (A) and (B) are front and side views of the door panel. [Figure 4] This is an enlarged rear view of the main part of the door panel. [Figure 5] (A) and (B) are horizontal cross-sectional views of the locking mechanism area with the window panel in the closed and open positions. [Figure 6] (A) and (B) are front views of the locking mechanism in the closed and open positions of the window panel. [Figure 7] (A)(B)(C)(D) are the plan view, side view, and front view of the locking device, and the side view of the key. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will be described below with reference to the drawings. In the drawings, 1 is a partition that divides the interior space into an office (staff room) R and a machine room (storage room) M, front to back. The partition 1 is constructed using a single door panel 2 positioned between the door-side and door-end support posts 3 and 3c, which are structural members. The door panel 2 is constructed as a hinged door pivotally supported on the door-end support post 3c via a hinge 2a. The door panel body 2 is constructed with horizontal frame members 4 and 5 on both the top and bottom sides, and vertical frame members 6 and 7 on both the leading and trailing ends of the door, forming a framework around the perimeter. Front and back panels 8 and 9 are provided on the front and back sides of the framework, which are the office R side and the machine room M side, respectively. Incidentally, it goes without saying that the partition 1 is not limited to just a single door panel 2 as in this embodiment, but may also be composed of multiple panels using other panels as needed.

[0009] The surface plate 8 of the door panel body 2 has extensions 8a and 8b on the leading edge and trailing edge sides that extend to the midpoint in the left-right direction of the surface-side visible surfaces 3a and 3ca of the leading edge and trailing edge support posts 3 and 3c. These extensions 8a and 8b are positioned to the left and right of the structural edge surface plate 11, which is installed in a bridge-like manner between the visible surface 10a of the vertical wall rail 10 provided on the structural wall surface W and the surface-side visible surface 3a of the structural edge support post 3, with a joint (gap) S existing between the structural edge surface plate 11 and the structural edge surface plate 11.

[0010] The lock body 12a, which constitutes the locking device 12, is incorporated into the lower end portion of the door-side support post 3 from the back side. The lock body 12a has a general-purpose cylinder lock mechanism (not shown) built inside and comprises the lock body 12a and a lock tip 12b that protrudes from the front edge of the lock body 12a. A keyhole 12c is formed at the tip of the lock tip 12b for inserting a wide, plate-shaped general-purpose key K. The locking device 12 can be locked and unlocked by rotating the key K together with the lock tip 12b while the key K is inserted into the keyhole 12c. By performing the locking and unlocking operations of the locking device 12 in this manner, the latch 12d provided on the lock body 12a rotates freely and engages with the latch catch 2b provided on the lower part of the leading edge of the door panel 2, thereby locking and unlocking the door panel 2.

[0011] The lock body portion 12a is installed in a position that is offset toward the tail end side with respect to the door front support post 3, and as a result the lock tip portion 12b is loosely fitted into a keyhole 3b that is positioned offset toward the tail end side with respect to the front surface portion 3a of the door front support post, and is exposed on the front side together with the keyhole 3b. The visible surface portion 3a of the door-side support post 3, on which the locking device 12 is installed, is covered by the door-side extension portion 8a provided on the surface plate 8. The door-side extension portion 8a extends toward the door-side (outward in the lateral direction (left and right direction)) to cover more than half of the lock tip portion 12b beyond the keyhole 12c, so that a portion of the lock tip portion 12b on the door-side is visible through the joint S. Specifically, the keyhole 12c formed in the lock tip 12b is set to be a long horizontal hole, and the door-side extension 8a extends beyond the keyhole 12c portion of the lock tip 12b towards the door-side, covering most of the lock tip 12b portion. Furthermore, the door-side extension portion 8a may be configured to cover the entire lock tip portion 12b, and even the entire keyhole 3b.

[0012] The door-end side extending portion 8a configured as described above is formed with a key window portion X for opening the covered lock tip portion 12b to allow insertion and turning operation of the key K into and on the key hole 12c. In this case, the key window portion X is formed by notching the peripheral edge of the lock tip portion 12b covered by the door-end side extending portion 8a, and the key window portion X is configured to be openably and closably covered by a window plate member 13. The window plate member 13 of the present embodiment can be swingingly transformed between a closed posture covering the key window portion X via a hinge 14 provided between the window plate member 13 and an extending piece portion 6a extending toward the door end side from the surface-side facing piece portion of the door-end side vertical frame member 6, and an open posture swinging toward the office room R side (surface side) to open the key window portion X. In this case, the window plate member 13 is configured such that the tip edge and the door-end side edge are aligned linearly in a vertical direction with the tip edge of the extending portion 8a, whereby the lock tip portion 12b is covered together with the key hole 3b by the window plate member 13 in the closed posture up to the door-end side portion beyond the key hole 12c, and only a part of the door-end side portion can be visually recognized through the joint S from the office room R side. Incidentally, it goes without saying that the window plate member 13 covering the key window portion X may not be configured to open, close and swing via the hinge 14, and may be configured to be detachably attached via, for example, a screw.

[0013] The hinge 14 is provided with a return spring (not shown), and is set to transform the window plate member 13 in the open posture to the closed posture side. The hinge 14 is attached to the extending piece portion 6a of the door-end side vertical frame member 6 in a state where a pivot 14a is biased toward the door tail side relative to the key window portion X, and a hinge plate member 14b to which the window plate member 13 is attached has a long curved special shape, and is configured to open and swing to an open posture beyond the door-end side extending portion 8a toward the office room R side. Therefore, the window plate member 13 can be brought into an open posture spaced apart toward the door tail side relative to the key window portion X, whereby when the window plate member 13 is opened, the key window portion X is in an unobstructed open state to form a large opening, and the unlocking and locking operations of the lock device 12 using the key K can be performed without being obstructed by the window plate member 13.

[0014] In the present embodiment configured as described above, in the locking device 12 that locks the door panel body 2 constituting the partition 1, the lock body portion 12a incorporating a cylinder lock mechanism is provided on the door-end side support column 3 which is the frame side, and the lock tip portion 12b is exposed from the key hole 3b provided on the surface side facing surface 3a of the door-end side support column 3. In this case, the door-end side extension portion 8a provided on the surface plate 8 of the door panel body 2 extends to cover almost the entire area beyond the key hole 12c portion of the lock tip portion 12b. As a result of the door-end side extension portion 8a having an opening at the covering lock tip portion 12b as the key window X, the locking and unlocking operations of the locking device 12 by rotating the key K inserted into the key hole 12c are permitted. In this state, the key window X is openably and closably closed by the window plate 13, so that the locking device 12 that requires a highly versatile wide plate-shaped key K such as a cylinder lock can be employed without any problem.

[0015] Furthermore, in this case, the window plate 13 is attached to the door-end side vertical frame member 6 of the door panel body 2 via a hinge 14, so that the key window X can be easily opened and closed, thereby improving operability. Furthermore, the hinge 14 is biased toward the side that transforms the window plate 13 into the closed posture, so that forgetting to operate to return to the closed posture can be eliminated. In this case, similarly to the door tail side, the door-end side extension portion 8a faces the frame side surface plate 11 provided on the surface side facing surface portion 3a of the door-end side support column 3 via the joint S. As a result, the partition 1 has no unnatural feeling on the left and right, and the visibility is not impaired. The key window X formed in the door-end side extension portion 8a is also covered by the window plate 13, but the boundary between the key window X and the window plate portion 13 in the closed posture is only visually recognized as a linear shape. Moreover, since the visually recognized part is the lower part of the door-end side extension portion 8a, it is not conspicuous.

[0016] As a result, the lock tip 12b, which is covered by the window panel 13, is covered up to the keyhole 12c. Consequently, the keyhole 12c is not directly visible from the joint S under normal circumstances and is covered and protected by the window panel 13, effectively preventing dust and other foreign matter from adhering to or entering the keyhole 12c. [Industrial applicability]

[0017] This invention can be used as a door device in a partition installed to divide the interior space of a building, such as an office building, into front and back sections. [Explanation of Symbols]

[0018] 1. Partition 2 Door panel body 3. Door-side support post 3a Surface side visible surface 3b Keyhole 6. Vertical frame material on the door front side 8 Surface plate 8a Door-side extension 12. Locking device 12a Lock body 12b Tablet tip 12c keyhole 13 Window panels 14 Hinge K key S joint

Claims

1. The partition that divides the interior space into front and back sections is configured with a door panel that can be opened and closed. In a door device for a partition, the locking device for the door panel comprises a lock body attached to the door-side support post, and a lock tip extending from the lock body and fitting into a keyhole drilled in the visible surface of the door-side support post, wherein the door panel can be locked by turning a key inserted into the keyhole formed in the lock tip, which causes a latch provided on the lock body to engage and disengage with a latch provided on the door-side edge of the door panel, In a configuration in which the surface plate of the door panel body is provided with an extended portion that extends to the visible surface portion of the door-side support post, The extension extends to a portion that covers all or part of the tip of the lock, The extension portion is provided with a key window portion that opens at the lock tip cover portion of the extension portion, allowing the key inserted into the keyhole to be turned. A door device for a partition, characterized in that the lock window portion is provided with a window plate material that allows the lock window portion to be opened and closed.

2. The door device in a partition according to claim 1, characterized in that the window panel is pivotably attached to the door edge on the door side of the door panel body via a hinge in order to open and close the lock window portion.

3. The door device in a partition according to claim 2, characterized in that the window panel is biased via an elastic mechanism provided on the hinge to return the window panel from an open position to a closed position.

4. A door device for a partition according to any one of claims 1 to 3, characterized in that the visible surface of the door-side support post is provided with a structural-side surface plate that faces the tip edge of the extension portion via a joint, without reaching the keyhole.

5. The extension extends at least to the portion that covers the keyhole at the tip of the lock, The door device in a partition according to claim 4, characterized in that the window panel covers the keyhole when in the closed position.

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