Door device

Abstract

When providing a locking device 10 to a door panel body 2 that is movably attached to a partition panel 1, the lock body portion 10a of the locking device 10 is designed to be easily attached to the door panel body 2 such that the lock tip portion 10b extending from the lock body portion 10a is exposed together with the keyhole 8a formed in the surface plate 8 of the door panel body 2. [Solution] A mounting bracket 12, which has a mounting piece 12c positioned between the front and back plates 8 and 9, is attached to the door panel body 2, and the lock body 10a is attached to the mounting piece 12c so that the lock tip 10b is installed in an exposed state with it fitted into the keyhole 8a.

Description

Technical Field

[0001] The present invention relates to the technical field of door devices provided with a locking device for partitioning indoor spaces of buildings such as buildings. Background Art

[0002] Generally, partition panels are provided to partition indoor spaces of buildings such as buildings. Among such partition panels, when the indoor space is, for example, an office, a person performs work such as office work, work, meetings, etc. Some are provided to partition between a business room where work is performed and a machine room (equipment room, storage room) that stores equipment such as air conditioning equipment. In such a partition panel, 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 body) is configured as an openable and closable door panel body so that an administrator can enter and exit. However, configuring such an openable and closable door panel body so that anyone can freely perform opening and closing operations is not preferable from the viewpoint of management. Therefore, in such a case, it is required to provide a locking device on the openable and closable door panel body and manage it so that only an administrator who has a key can open and close the door panel body. Accordingly, such door panel bodies provided with a locking device have been provided (see, for example, Patent Document 1). Prior Art Documents Patent Documents

[0003] Patent Document 1 Japanese Unexamined Patent Publication No. 2020-33827 Summary of the Invention Problems to be Solved by the Invention

[0004] However, in the conventional locking devices, the locking mechanism, such as a cylinder lock mechanism, was attached to the door panel by sandwiching the surface plate of the door panel between the lock body, which contains the locking mechanism, and the lock tip, which protrudes from the lock body and has a lock hole for inserting a key. As a result, the lock tip protruded significantly from the surface plate and was large in diameter, making it a conspicuous feature when viewed from the outside, which posed problems in terms of design and appearance. Therefore, it has been proposed to eliminate the cover material in the conventional design, but this would lead to problems such as unstable attachment of the lock body to the door panel, and these are the issues 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 is a door device in which a door panel body having front and back plates that can be opened and closed is provided with a locking device that locks and unlocks the door panel body by turning a key inserted into a keyhole, and the locking device comprises a lock body that is attached to the door panel body and a lock tip that extends from the front edge of the lock body and is provided with a keyhole, wherein the keyhole for which the lock tip is fitted is provided on the front plate of the door panel body and is exposed together with the lock tip when the locking device is attached to the door panel body, a mounting bracket having a mounting piece that is positioned between the front and back plates is attached to the door panel body, and the locking device is attached to the door panel body by fastening the lock body to the mounting piece. The invention of claim 2 is a door device according to claim 1, characterized in that the door panel body comprises door-side and door-end vertical frame members, and the mounting bracket is fastened to the door-side vertical frame member. The invention of claim 3 is a door device according to claim 1, characterized in that the lock body is fastened to the mounting piece by a screw, and the mounting piece is positioned such that the distance between it and the surface plate is greater than the length of the screw portion that protrudes from the mounting piece toward the surface plate. The invention of claim 4 is a door device according to claim 3, characterized in that the mounting bracket comprises a first piece that abuts against the door-side vertical frame material and abuts against or closely faces one of the front and back panels, a second piece that is spaced apart from the first piece toward the door-side and abuts against or closely faces the other of the front and back panels, and a mounting piece that connects the first and second pieces, the first piece being fixed with screws to the door-side vertical frame with which it abuts. The invention of claim 5 is a door device according to claim 1, characterized in that the leading edge of the lock body portion is in contact with or in close proximity to the back surface of the surface plate when the lock body portion is attached to the mounting piece portion. [Effects of the Invention]

[0006] By adopting the invention of claim 1, the tip of the lock is exposed through a keyhole formed in the surface plate without any cover material, and the lock device is mounted in a simple manner with minimal protrusion from the surface plate. In this case, a mounting bracket with a mounting piece positioned between the front and back plates is attached to the door panel, and the lock device is attached by fastening the lock body to the mounting piece provided on the mounting bracket, resulting in a secure and simple mounting of the lock device without a cover material. By adopting the invention of claim 2, the mounting bracket is fastened to the door-side vertical frame material, which is provided as a structural component of the door panel, thereby attaching the locking device to the door panel. By adopting the invention of claim 3, the lock body is fastened to the mounting piece by a screw. In this case, the distance between the mounting piece and the surface plate is set to be wider than the length of the screw's threaded portion that protrudes from the mounting piece towards the surface plate. As a result, the screw does not protrude from the surface plate. The invention of claim 4 provides a mounting bracket comprising: a first piece that abuts against the door-side vertical frame material and abuts against or closely faces one of the front and back panels; a second piece that is spaced apart from the first piece toward the door-side and abuts against or closely faces the other of the front and back panels; and a mounting piece that connects the first and second pieces. The first piece is fixed with screws to the door-side vertical frame it abuts against. As a result, the structure of the mounting bracket for attaching the locking device to the door panel becomes simple and simplified, while the attachment of the mounting bracket to the door panel becomes easy and reliable. As a result of the invention of claim 5, when the lock body is attached to the mounting piece, the tip edge of the lock body comes into contact with or is in close proximity to the back surface of the surface plate. Consequently, the keyhole into which the lock tip is inserted is exposed with the space between the lock tip and the keyhole blocked by the tip edge of the lock body, preventing a hollow space from forming around the lock tip. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view of the partition panel. [Figure 2] This is a cross-sectional plan view of a partition panel. [Figure 3] (A) and (B) are rear and side views of the door panel. [Figure 4] (A) and (B) are enlarged front and cross-sectional plan views of the locking mechanism area of ​​the door panel. [Figure 5] This is an exploded perspective view showing the locking mechanism attached to the door panel. [Figure 6] (A)(B)(C)(D) are the plan view, side view, and front view of the locking device, and the side view of the key. [Figure 7] (A), (B), and (C) are the front, side, and top views of the mounting bracket. [Modes for carrying out the invention]

[0008] The embodiments of the present invention will now be described based on the drawings. In the drawings, 1 is a partition panel that divides the interior space into an office (staff room) R and a machine room (storage room) M, front to back. The partition panel 1 is constructed by connecting two panel bodies 2 and 2a in a continuous manner in the left-right direction. Both of these panel bodies 2 and 2a are configured as door panels 2 and 2a that can be opened towards the office R, and are configured as double-opening doors pivotally supported by hinges 3a on the left and right structural support columns (partition columns) 3, which are structural members. The door panel bodies 2 and 2a are framed around all four sides by horizontal frame members 4 and 5 on the top and bottom sides, and vertical frame members 6 and 7 on the leading and trailing ends of the door on the left and right sides. Front and back panels 8 and 9 are provided on the front and back sides of the framed structure, on the office R side and the machine room M side, respectively. Regarding the front panel 8, considering visibility from the office R side, the entire panel body 2 is decorated with the same design or the same concept (for example, a forest pattern).

[0009] One of the door panel bodies 2, 2a (the one on the left in Figure 2) 2 is equipped with a locking device 10 positioned in the inner space S of the corner between the lower horizontal frame material 5 and the door edge side vertical frame material 6. The locking device 10 is a general-purpose cylinder lock and comprises a rectangular prism-shaped lock body 10a in which a cylinder lock mechanism (not shown) is housed, and a lock tip 10b that extends cylindrically from the leading edge 10aa of the lock body 10a, having a smaller width (smaller diameter) than the lock body 10a. The tip of the lock 10b is provided with a keyhole 10c at its edge. By turning the key K inserted into the keyhole 10c, the tip of the lock 10b rotates, causing the latch 10d on the lock body 10a to swing, which engages and disengages with the latch 11 on the door edge end of the other door panel 2a. This allows the locking and unlocking of the locking device 10. Incidentally, the key K used in this case is a versatile, long, wide plate-shaped key, and is configured as a master key.

[0010] A mounting bracket 12 for attaching the locking device 10 is provided at the corner between the lower horizontal frame member 5 and the door-side vertical frame member 6. The mounting bracket 12 is composed of a first piece 12a on the door-side, whose L-shaped bent tip abuts against or is in close proximity to the front plate 8; a second piece 12b on the door-end, which abuts against or is in close proximity to the back plate 9; and a mounting piece 12c that connects these first and second pieces 12a and 12b. The first piece 12a is attached and fixed (fastened) to the door-end side projection surface 6a of the door-end vertical frame member 6 with which it abuts via screws 12d.

[0011] With the mounting bracket 12 attached to the door-side vertical frame material 6 in this manner, the mounting piece 12c will be located in the middle of the front and rear front and back plates 8 and 9, and the mounting piece 12c has a through hole 12e for passing through the lock body 10a. The locking device 10 is then attached and fixed to the mounting bracket 12 by screwing in a screw 10f from the back side (machine room M side) while the lock body 10a passes through the through hole 12e and the mounting arm 10e provided on the lock body 10a is in contact with the mounting piece 12c from the machine room M side. In this case, the threaded portion 10fa of the screw 10f will protrude from the mounting piece 12c to the front side (workroom R side). However, the distance between the surface plate 8 and the mounting piece 12c is set to be wider than the length of the threaded portion 10fa protruding from the mounting piece 12c, so that the protruding threaded portion 10fa does not damage the surface plate 8.

[0012] In this manner, the lock device 10, with the lock body 10a mounted via the mounting bracket 12, has the leading edge 10aa of the lock body 10a in contact with or in close proximity to the back surface of the surface plate 8, and the lock tip 10b is exposed on the surface side together with the keyhole 8a, which is provided at the lower end of the door-side of the surface plate 8, slightly protruding from the keyhole 8a. This configuration allows the lock to be seen from the office R side without the need for a cover material to cover the keyhole 8a as in conventional designs.

[0013] In the embodiment of the present invention configured as described above, the lock device 10 provided on the door panel body 2 is attached to the key hole 8a formed in the front surface plate 8 in a simple state where there is no conventional covering member and the protrusion from the front surface plate 8 is small. In this case, the lock device 10 is attached by attaching the mounting bracket 12, in which the mounting piece 12c is arranged between the front and back surface plates 8 and 9, to the door panel body 2, and fastening the lock main body 10a to the mounting piece 12c. As a result, the lock device 10 without a covering member can be mounted reliably and simply.

[0014] Furthermore, in this case, the mounting bracket 12 is attached to the door panel body 2 by being fastened to the leading-end vertical frame member 6 provided as an aggregate of the door panel body 2, whereby the mounting of the lock device 10 to the door panel body 2 is made firm. The fastening of the lock main body 10a to the mounting piece 12c is achieved by a screw 10f. In this case, the facing interval between the mounting piece 12c and the front surface plate 8 is set to be wider than the length of the threaded portion 10fa of the screw 10f that protrudes from the mounting piece 12c toward the front surface plate 8. As a result, the problem that the screw 10f protrudes from the front surface plate 8 can be eliminated.

[0015] Furthermore, the mounting bracket 12 includes: a first piece 12a that abuts against the leading-end vertical frame member 6 and abuts against or is closely opposed to the front surface plate 8; a second piece 12b that is spaced apart from the first piece 12a toward the trailing end side of the door and abuts against or is closely opposed to the back surface plate 9; and the mounting piece 12c that connects the first piece 12a and the second piece 12b. The first piece 12a is fastened and fixed to the depth-facing surface portion 6a of the abutting leading-end vertical frame member 6 via a screw 12d. As a result, while the structure of the mounting bracket 12 for attaching the lock device 10 to the door panel body 2 is simple and simplified, the attachment of the lock device 10 to the door panel body 2 via the mounting bracket 12 is also simple and reliable.

[0016] Furthermore, when the lock body portion 10a is attached and fixed to the mounting piece portion 12c, the tip edge portion 10aa of the lock body portion 10a comes into contact with or is in close proximity to the back surface of the surface plate 8. As a result, when the lock tip portion 10b is inserted into the keyhole 8a, the keyhole 8a is exposed while being blocked by the tip edge portion 10aa of the lock body portion 10a between the lock tip portion 10b and the keyhole 8a. Consequently, there is no gap between the lock tip portion 10b and the keyhole 8a.

[0017] Furthermore, in this design, the mounting bracket 12 is attached to the door-side frame material 6 with the bracket positioned on the inside of the corner between the door-side vertical frame material 6 and the lower horizontal frame material 5, and the keyhole 8a formed in the surface plate 8 is provided at the lower end portion of the door-side of the door panel body 2. Therefore, when the door panel material 2 is used as a panel body to constitute the partition panel 1, the lock tip 10b that would be exposed from the surface plate 8 is provided at the lower end portion of the door-side of the door panel body 2, a location that is less conspicuous on the office room R side, thus avoiding any deterioration in appearance.

[0018] Moreover, in this case, the keyhole 8a is formed in the surface plate 8 of the inner space S at the corner between the door-side vertical frame material 6 and the lower horizontal frame material 5, making it simple and simplifying the structure. Furthermore, the lock device 10 is composed of a lock body 10a in which the lock mechanism is housed, and a lock tip 10b extending from the lock body 10a with a keyhole 10c formed therein. The keyhole 8a formed in the surface plate 8 is exposed together with the lock tip 10b in a state where the lock tip 10b is fitted inside, and there is no cover material to close the keyhole 8a. As a result, the lock device 10 is inconspicuous, with the lock tip 10b protruding slightly from the keyhole 8a and exposed together with the keyhole 8a in a double-circle state, thus simplifying the surface of the door panel body 2.

[0019] Furthermore, door panel 2, together with the other door panel 2a, constitutes a partition panel 1 that separates the work room R and the machine room M front to back. Since these door panels 2 and 2a have the same design or a design of the same concept applied to their surface plates 8, a sense of design unity is achieved, so that people working in the work room R will not feel any sense of incongruity when they see it.

[0020] It goes without saying that the present invention is not limited to the embodiments described above. The present invention can also be implemented in a configuration in which the mounting bracket 12 has a second bracket 12b that abuts against or is in close proximity to the back plate 9, abuts against the door edge side vertical frame material 6 and is fixed with screws, and the first piece 12a abuts against or is in close proximity to the front plate 8. [Industrial applicability]

[0021] This invention can be used as a door device equipped with a locking mechanism to partition the interior space of a building such as an office building. [Explanation of symbols]

[0022] 1 Partition Panel 2, 2a Door panel body 6. Vertical frame material on the door front side 7. Vertical frame material on the door end side 8 Surface plate 8a Keyhole 9 Back plate 10-tablet device 10a Lock body 10aa Tip edge 10b Tablet tip 10c keyhole 10d Latch 10f screws 10fa threaded part 11 Latch 12 Mounting brackets 12a First piece 12b Second piece 12c Mounting piece 12d screw K key

Claims

1. A door panel body, equipped with front and back panels and capable of opening and closing, is fitted with a locking mechanism that locks and unlocks the door panel body by turning a key inserted into the keyhole. In a door device comprising a lock body attached to a door panel and a lock tip extending from the leading edge of the lock body and having a keyhole, In a configuration where a keyhole is provided on the surface plate of the door panel body into which the tip of the lock is inserted, and the locking device is exposed together with the tip of the lock when the locking device is attached to the door panel body, A mounting bracket is attached to the door panel body, which has a mounting piece positioned between the front and back panels. The locking device is characterized in that the lock body is fastened to a mounting piece to be attached to the door panel.

2. The door panel body is equipped with vertical frame members on the leading edge and trailing edge sides. The door device according to claim 1, characterized in that the mounting bracket is fastened to the vertical frame material on the door edge side.

3. The lock body is fastened to the mounting piece with screws. The door device according to claim 1, characterized in that the mounting piece is positioned such that the distance between it and the surface plate is greater than the length of the screw portion that protrudes from the mounting piece of the screw toward the surface plate.

4. The mounting bracket comprises a first piece that abuts against the vertical frame material on the door edge side and abuts against or closely faces one of the front and back panels, a second piece that is spaced apart from the first piece on the door edge side and abuts against or closely faces the other of the front and back panels, and the mounting piece that connects the first and second pieces. The door device according to claim 3, characterized in that the first piece is fixed with screws to the vertical frame on the door edge side that it abuts.

5. The door device according to claim 1, characterized in that the leading edge of the lock body is in contact with or in close proximity to the back surface of the surface plate when the lock body is attached to the mounting piece.

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