Door frame structure

Abstract

To allow a user to easily recognize a device for notifying an opening / closing state of a door.SOLUTION: The door structure includes the frame portion 12 having a hollow structure and configured to support the door 1 so as to be openable and closable, and the light emitting portion 15 accommodated in the space inside the frame portion, the frame portion 12 has the opening communicating with the space on the width face 13 of the frame portion 12, the light emitting portion 15 includes the light source and the transmission portion configured to transmit the light of the light source, and the transmission portion is exposed to the outside through the opening on the width face.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to door frame structures. [Background technology]

[0002] Electric locking systems that control the locking and unlocking of doors are widely used. Electric locking systems enhance security and convenience. However, there is a possibility that a malfunction of the door may cause the door to remain unlocked.

[0003] In response to this, Patent Document 1 describes a device that outputs an alarm sound or voice from a speaker and flashes a light when a door has been open for a predetermined period of time. The alarm means, such as the speaker and light, are installed on the wall near the door. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-348676 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in many cases, various devices for authenticating users, such as a card reader, an intercom, etc., are already installed on the wall near the door. If the above-mentioned alarm means is installed on the wall near the door in addition to these devices, it becomes difficult for the user to distinguish between the alarm means and the notification means of other devices. [Means for solving the problem]

[0006] The present disclosure provides a door frame structure, the door frame structure including a hollow frame portion supporting a door so that it can be opened and closed, and a light-emitting portion housed in a space inside the frame portion, the frame portion having an opening on a visible surface of the frame portion that communicates with the space, the light-emitting portion including a light source and a transmission portion that transmits light from the light source, the transmission portion being exposed to the outside through the opening on the visible surface. [Effects of the Invention]

[0007] According to the present disclosure, it becomes easier for a user to recognize a device that notifies the open / closed state of a door. [Brief explanation of the drawings]

[0008] [Figure 1] 1(a) and 1(b) are front views of a door frame structure according to one embodiment. [Figure 2] 10 is a top view of the end face of the main part of the frame structure of the embodiment. FIG. [Figure 3] FIG. 2 is a front view of a main part of the frame structure of the embodiment. [Figure 4] FIG. 2 is a front view of a cross section of a main part of the frame structure of the embodiment. [Figure 5] FIG. 2 is a side view of a main part of the frame structure of the same embodiment. [Figure 6] 1 is a schematic diagram showing the main parts of a building to which the frame structure of the same embodiment is applied. [Figure 7] FIG. 2 is a front view of a main part of the frame structure of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of a door frame structure will now be described. 1 shows the front of a door 1 installed at a doorway 17 and its surroundings. The door 1 includes a door frame structure 10 (hereinafter referred to as the frame structure 10) and a door body 11. In this embodiment, the door 1 is locked and unlocked by an electric lock (not shown).

[0010] A frame structure 10 is provided on the wall 16. The frame structure 10 includes a frame portion 12 that rotatably supports a door body 11, and a light-emitting portion 15. Hinges (not shown) that rotatably support the door body 11, an electric lock (not shown), and the like are attached to the frame structure 10. The light-emitting portion 15 is housed within the frame portion 12. The light-emitting portion 15 is exposed through an opening formed in a facing surface 13, which is the front of the frame portion 12. The light-emitting portion 15 is provided at a position that matches the height of the user's eyes (for example, 140 cm to 160 cm).

[0011] The light-emitting unit 15 lights up or goes out to indicate a predetermined state (locked or unlocked state) of the door 1. The predetermined state to be notified can be set according to the user's purpose. In this embodiment, the light-emitting unit 15 lights up to indicate a state in which unlocking of the door 1 is prohibited, but it may also be configured to indicate a state in which unlocking is possible, or a state in which an abnormality has occurred, such as when the unlocking period has reached a predetermined period. The door 1 is not limited to an opening and closing type. For example, the door 1 may be a single door as exemplified in FIG. 1, or may be a pair of doors rotatably supported on each side end of the frame structure 10, a sliding door, a folding door, a hanging door, or the like.

[0012] 1(a) shows a state in which the light-emitting unit 15 is lit. The light-emitting unit 15 emits a colored light such as red. As described above, the lighting of the light-emitting unit 15 notifies that unlocking is prohibited. When the light-emitting unit 15 is lit, the door 1 is locked, and will not be unlocked even if the authentication device 14 successfully authenticates the user.

[0013] 1(b) shows a state in which the light-emitting unit 15 is turned off. The light-emitting unit 15 being turned off indicates that the door 1 can be unlocked. In this state, the door 1 is locked, but will be unlocked if the authentication device 14 successfully authenticates the user.

[0014] Next, the inside of the frame structure 10 will be described with reference to FIGS. 2 is a schematic horizontal cross-sectional view of the frame structure 10. The frame structure 10 further includes a cover 21.

[0015] The frame 12 is made of a metal material such as stainless steel and has a hollow structure. The frame 12 has an attachment opening 22, an inspection opening 23, an opening 24, and a door stop 25. The mounting opening 22 is an opening for mounting the frame 12 to the wall 16 (see FIG. 1). The cover 21 is fixed to the frame 12 so as to close a portion of the mounting opening 22. The cover 21, together with the frame 12 and the inspection hatch plate 20, defines a space for accommodating the light-emitting unit 15.

[0016] The opening 24 is a hole that penetrates the wall portion of the frame 12 where the facing surface 13 is provided. The opening 24 has a rectangular shape when viewed from the front. The inspection hatch 23 is an opening provided on the visible surface 12A of the frame 12, which faces the door edge of the closed door body 11, and which communicates with the space in the frame 12. The inspection hatch 23 is provided at a position on the visible surface 12A that does not overlap with the door stop 25 or the cushion 26 provided on the door stop 25. An inspection hatch plate 20 is detachably attached to the inspection hatch 23. The inspection hatch plate 20 is detachably fixed to a mounting plate 12B supported on the frame 12 with fastening members 27, such as screws.

[0017] The light-emitting unit 15 includes a light-emitting body 28 and a transmission portion 32. The transmission portion 32 is located at a position intersecting the optical axis of the light emitted from the light-emitting body 28. The transmission portion 32 has a plate-like shape, being thicker in the center and thinner at the periphery. This results in a fitting portion 32A (protrusion) being provided in the center of the transmission portion 32. The fitting portion 32A is fitted into the opening 24, and the periphery of the fitting portion 32A abuts against the inside of the frame portion 12. The step between the fitting portion 32A and the periphery has a thickness equal to or less than the thickness of the wall portion having the visible surface 13. Therefore, the front surface of the fitting portion 32A is located flush or nearly flush with the visible surface 13. Since the transmission portion 32 does not protrude from the visible surface 13, dust accumulation on the transmission portion 32 protruding from the frame portion 12 is suppressed. The back surface of the transmission portion 32 is sealed with a silicone material to maintain airtightness within the frame portion 12.

[0018] FIG. 3 is a front view of the main parts of the frame structure 10. The transmissive portion 32 is made of a resin material that is rectangular when viewed from the front. In this embodiment, the transmissive portion 32 is made of a translucent milky white acrylic resin and a translucent red film. The film is provided on the back surface of the acrylic resin and is arranged inside the frame portion 12. When the light-emitting portion 15 is turned on, light that is irradiated from the light source 31 (described later) and diffused within the frame portion 12 passes through the red film and the acrylic resin. As a result, the entire transmissive portion 32 glows uniformly in red.

[0019] FIG. 4 is a front view of a cross section of the frame structure 10 taken at the back of the front surface 13. The light-emitting body 28 includes a support member 30 and a light source 31. The light source 31 emits light in a direction opposite to the depth direction Z, i.e., toward the front surface 13. The light-emitting body 28 also includes a control circuit (not shown) that turns the light source 31 on and off. The support member 30 is made of a metal material whose longitudinal direction extends in the height direction Y. For example, the support member 30 has an L-shaped cross section in the short side direction, and one surface of the support member 30 is fixed to the frame member 12. The support member 30 supports a plurality of light sources 31 arranged at predetermined intervals along the height direction Y. For example, the light sources 31 are LED light sources that emit white light. A power cable (not shown) for the light source 31 and a cable (not shown) for receiving a signal to turn the light on and off are passed through a pipe 15C inserted through the through-hole 21B of the cover 21.

[0020] A pair of angles 33, which are L-shaped when viewed from the front, are attached to the inspection hatch plate 20. The angles 33 are fixed via fastening members 27 to a mounting plate 12B fixed to the frame portion 12. The light-emitting body 28 is located near the inspection hatch plate 20, in a position that can be reached when a worker inserts their hand (or a jig) through the inspection hatch 23. This allows maintenance to be easily performed by removing the inspection hatch plate 20. The angles 33 may also be omitted.

[0021] (Sealing material) Next, with reference to Figures 2, 4, and 5, the sealing members 40A-40E will be described. Small gaps can occur between the cover 21 and the frame 12, etc. Meanwhile, air can enter the wall 16 from the outside. Air that passes through the wall 16 enters the room through these gaps. For example, if low-purity air enters through the wall 16 and into the frame 12, this air will enter the room when the inspection hatch plate 20 is removed during maintenance. For this reason, when the door 1 is placed in a space where high cleanliness is required, the sealing members 40A-40E are provided to prevent a decrease in the cleanliness of the air.

[0022] As shown in FIG. 2, sealing members 40A and 40B are provided between the frame 12 and the cover 21 to prevent air from entering the room from the wall 16 side. The sealing member 40A is provided in a corner defined by the end 12C of the frame 12 and the side surface of the cover 21. The sealing member 40A is, for example, a triangular seal (joint seal) made of resin with a triangular cross section, and extends in the height direction Y (see FIG. 5). The sealing member 40A prevents low-purity air from entering the space where the light-emitting unit 15 is provided through a gap between the end 12C of the frame 12 and the cover 21. The sealing member 40B is a triangular seal provided in a corner defined by the end 21A of the cover 21 abutting against the frame 12 and the side surface of the frame 12, and extends in the height direction Y. The sealing member 40B prevents low-cleanliness air from entering the space in which the light-emitting unit 15 is provided through the gap between the frame 12 and the end 21A of the cover 21.

[0023] 4 and 5, sealing members 40C to 40E are provided on the top surface and bottom surface of cover 21. As shown in FIG. 4, sealing member 40C is a seal that fills the gap between pipe 15C and cover 21. In the example of FIG. 4, sealing member 40C is provided so as to surround the outer circumferential surface of cylindrical pipe 15C. Sealing member 40C prevents low-purity air from entering the space in which light-emitting unit 15 is provided through the gap between pipe 15C and cover 21.

[0024] 4 and 5, the sealing member 40D is located in a corner defined by the frame 12 and the upper wall of the cover 21. As shown in Fig. 4 and 5, the sealing member 40E is a triangular seal extending in the depth direction Z, and closes the entrance to the gap between the bottom surface of the cover 21 and the frame 12. The sealing members 40D and 40E prevent low-purity air from entering the space in which the light-emitting unit 15 is provided through the gap between the frame 12 and the cover 21.

[0025] (Example of frame structure application) With reference to FIG. 6, an example will be described in which the above-described frame structure 10 is applied to an access control system 50 installed in a clean room, a factory, or the like. In buildings requiring sanitation control, such as clean rooms and factories, zoning is performed to separate rooms according to cleanliness classes. An anteroom 51 is adjacent to an area with a high cleanliness class to prevent contamination of that area. The anteroom 51 is, for example, a changing room where workers entering a clean area or the like can change into clean wear.

[0026] Doors 1A and 1B are provided in front room 51. Door 1A is located between front room 51 and area 52, which has a high cleanliness class. Door 1B is located between front room 51 and area 53, which has a lower cleanliness class than area 52. Entry and exit to front room 51 is managed by access control system 50.

[0027] The access control system 50 controls the locking and unlocking of doors 1A and 1B. The doors 1A and 1B are supported by a frame structure 10. The access control system 50 includes a control device 54, door control units 55A and 55B, authentication devices 14A and 14B, and light-emitting units 15A and 15B. The light-emitting units 15A and 15B are the light-emitting unit 15 described above. Door 1A is controlled by the door control unit 55A. The authentication device 14A and the light-emitting unit 15A are provided near door 1A. Door 1B is controlled by the door control unit 55B. The authentication device 14B and the light-emitting unit 15B are provided near door 1B.

[0028] The authentication devices 14A and 14B are devices that authenticate the users 61A and 61B. For example, the authentication devices 14A and 14B are devices equipped with a card reader, a biometric authentication device that authenticates the face, iris, fingerprint, etc. of the users 61A and 61B, or a numeric keypad for inputting a PIN. The authentication devices 14A and 14B output authentication results to the door control units 55A and 55B, respectively. The door control units 55A and 55B drive electric lock mechanisms such as solenoids and electric motors. The control device 54 is electrically connected to the door control units 55A and 55B and the light-emitting unit 15 and controls them.

[0029] The control device 54 performs interlock control to prohibit unlocking of one door 1 when the other door 1 is unlocked. In this state, if, for example, a user 61B who is outside the front room 51 cannot see the door 1A located at a distance, it is difficult for the user 61B to understand the reason why the door 1A cannot be unlocked. For example, the user 61B cannot clearly understand whether unlocking is being prohibited by the interlock control because the door 1A located at a distance is open, or whether there is a problem with the door 1B or the access control system 50.

[0030] For example, when one door 1A is unlocked, the control device 54 lights up the light-emitting unit 15B corresponding to the other door 1B. This causes the light-emitting unit 15B to notify the user 61B that unlocking is prohibited by interlock control because the door 1A at a distant position is open.

[0031] Thereafter, when the door 1A is locked, the control device 54 turns off the light emitting unit 15B that was lit, thereby notifying the user 61B that the door 1B can be unlocked. This allows the user 61B to know the timing when the door 1B can be unlocked.

[0032] <Effects of this embodiment> As described above, according to the first embodiment, the following effects can be obtained. (1) On the visible surface 13 of the frame 12, a light-emitting unit 15 that notifies a predetermined state of the door 1 is provided so as to be visible to the user 61. By arranging the light-emitting unit 15 separately from the authentication device 14 and the like provided on the wall 16 in this way, the user 61 can easily distinguish between the light-emitting unit 15 and the authentication device 14 and the like. Furthermore, by providing the light-emitting unit 15 on the frame 12, the user 61 can intuitively understand that the light-emitting unit 15 indicates the open / closed state of the door 1. Furthermore, by not providing the light-emitting unit 15 on the wall 16 near the door 1, the aesthetic appearance of the area around the door can be improved.

[0033] (2) The inspection hatch plate 20 is removably provided on the frame 12. This makes it easier to perform maintenance on the light-emitting unit 15. (3) Sealing members 40A, 40B, 40D, and 40E are provided in the gap between the cover 21 and the frame 12 to prevent air from entering through the wall 16 to which the frame 12 is connected. In addition, sealing member 40C is provided between the pipe 15C and the cover 21 to prevent air from entering. This makes it possible to prevent a decrease in the cleanliness of the air in the space in which the door 1 is installed.

[0034] (4) The transparent portion 32 has the fitting portion 32A that corresponds to the wall thickness of the frame portion 12, so that the fitting portion 32A exposed at the visible surface 13 can be prevented from protruding from the frame portion 12. This makes it possible to prevent dust from accumulating in the step between the transparent portion 32 and the frame portion 12.

[0035] (5) The light-emitting unit 15 lights up to notify that unlocking of the door 1 is prohibited, and turns off to notify that unlocking of the door 1 is permitted. The user 61 can grasp the timing when the door 1 can be unlocked by visually confirming that the light-emitting unit 15 has switched from lit to off.

[0036] <Example of change> The above-described embodiment can be modified as follows: Each embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs.

[0037] (Light emitting part) The shape of the light emitting body 28 is not particularly limited as long as it can irradiate the light from the light source 31 onto the transmission portion 32. For example, the support portion 30 may be a box-shaped member that supports the light source 31.

[0038] In the above embodiment, the light emitting unit 15 is provided on the front side (the surface shown in FIG. 1) of the door 1 of the frame 12. Alternatively or additionally, the light emitting unit 15 may be provided on the back side of the door 1. For example, if the light emitting units 15 are provided on both the front and back sides of the door 1, the user 61 can know whether the door 1 is prohibited from being unlocked no matter where he or she is.

[0039] In the above embodiment, the transparent portion 32 is provided on a part of the visible surface 13 of the frame 12, but the transparent portion 32 may be provided on the entire visible surface 13, and the size and shape of the transparent portion 32 are not particularly limited. For example, the height of the transparent portion 32 may be the same as the height of the door body 11. The transparent portion 32 may also be provided on a portion of the frame 12 that extends horizontally. Furthermore, the transparent portion 32 may be provided in a frame shape so as to surround the door body 11.

[0040] The light-emitting unit 15 may emit white light or a colored light other than red, such as blue. The light-emitting unit 15 may have a light source that emits light of multiple colors, rather than the transmissive unit 32 made of resin and film. The light source may be switchable between multiple colors. Alternatively, the light-emitting unit 15 may have multiple types of light sources that emit monochromatic light. For example, the light-emitting unit 15 may emit red light when unlocking is prohibited and blue light when unlocking is permitted. The light-emitting unit 15 may also flash. Alternatively, the transmissive unit 32 may be made of a translucent colored resin material, such as a red acrylic plate.

[0041] In the above embodiment, the light-emitting unit 15 is lit to indicate that unlocking is prohibited, but the light-emitting unit 15 may emit light to indicate a notification, and the content of the notification is not limited. For example, the light-emitting unit 15 may be lit to indicate that unlocking is permitted, and may be turned off or flashing to indicate that unlocking is prohibited.

[0042] As shown in Figure 7, the light emitting body 28 may be integrated with the inspection hatch plate 20. In this case, the support part 30 is not fixed to the frame part 12. The support part 30 has upper wall parts 30A at both ends in the height direction Y. The upper wall parts 30A of the support part 30 are fixed to the angle 33 by fastening members 27. In this way, the light emitting body 28 is integrated with the inspection hatch plate 20 and is configured to be removable from the frame part 12 together with the inspection hatch plate 20.

[0043] (Sealing material) The sealing members 40A to 40E may be omitted depending on the hygiene management level of the building in which the door 1 is installed. Furthermore, sealing members may be provided in positions other than the seals 40A to 40E in the above embodiment, such as in the gap between the cover 21 and the frame portion 12 of the frame structure 10 or in gaps between other members.

[0044] (Interlock control) The control device 54 does not need to execute interlock control. In such a case, it is not desirable to open both door bodies 11A and 11B simultaneously, but executing interlock control may significantly reduce convenience. In this case, the control device 54 does not execute interlock control, and when one door 1A is unlocked, the control device 54 turns on the light-emitting unit 15B corresponding to the other door 1B. Furthermore, when the unlocked door 1A is locked, the control device 54 turns off the light-emitting unit 15B that was lit. Furthermore, when the door 1B is unlocked and locked, the control device 54 similarly controls the light-emitting unit 15A corresponding to the door 1A to be turned on and off. This allows the user 61 to be warned not to open the doors 1A and 1B at the same time.

[0045] Furthermore, the control device 54 may detect the opening and closing of the door body 11 instead of detecting locking and unlocking. In this case, the door control units 55A and 55B detect the opening and closing of the door bodies 11A and 11B, respectively. "Open" refers to a state in which the door body 11 has moved from a closed position that closes the entrance 17, and "closed" refers to a state in which the door body 11 is located in the closed position. The closing and opening can be detected by various detection devices, such as an optical sensor or a magnetic sensor, provided on or near the door body 11. When one door body 11A is open, the control device 54 lights up the light-emitting unit 15B corresponding to the other door body 11B, and vice versa. [Explanation of symbols]

[0046] 10...door frame structure (frame structure), 1...door, 11...door body, 12...frame portion, 13...visible surface, 15...light-emitting portion, 20...inspection hatch plate, 21...cover, 23...inspection hatch, 24...notch as opening, 31...light source, 32...transmitting portion, 32A...protruding portion, 40A to 40E...sealing member, 54...control device

Claims

1. a frame portion having a hollow structure and supporting the door body so that it can be opened and closed; a light-emitting unit accommodated in the space inside the frame, The frame portion is An opening communicating with the space is provided on a visible surface of the frame portion, The light emitting unit A light source and a transmission portion that transmits light from the light source, A door frame structure, wherein the transmission portion is exposed to the outside through the opening at the front surface.

2. The door frame structure according to claim 1, wherein the frame portion has an inspection hatch that opens on the visible surface and communicates with the space, and an inspection hatch plate that is detachably attached to the inspection hatch.

3. a cover that covers at least a part of the light-emitting section; The door frame structure according to claim 1 , wherein a seal member is provided in a gap between the cover and the frame portion to prevent air from entering through a wall to which the frame portion is connected.

4. The transmission portion is a protrusion corresponding to the thickness of the wall having the visible surface; The door frame structure according to claim 1 , wherein the protrusion is fixed to the frame by fitting into the opening.

5. The door frame structure according to claim 1 , wherein the light emitting portion notifies the user of whether the door body is open or closed by lighting up.

Images