Door body open alarm and fitting device equipped with this door body open alarm

Abstract

To provide a door open alarm capable of notifying a person on an opening direction side of a fact that a door body will be opened.SOLUTION: A door open alarm attached to a door 20 or a frame body 10 surrounding the door is provided, the door open alarm integrally includes: a base member 31 straddling the door 20 or the frame body 10 in a prospective direction; a sensing unit 32 that senses an event in which the opening of the door 20 is expected; and a notification unit 33 that notifies according to the detection by the sensing unit 32.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a door body opening alarm that notifies the user when a door body is opened, and a fitting device equipped with this door body opening alarm. [Background technology]

[0002] Conventionally, there are building fixtures, such as those described in Patent Document 1, that include a door body that rotates to open an opening, a frame body that surrounds the door body, and a handle (such as a doorknob) that can be placed on to open and close the door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-176189 Summary of the Invention [Problem to be solved by the invention]

[0004] However, according to the above-mentioned conventional technology, if a person is on the opening side of the door body when the door body opens, and the person does not notice the door body opening, there is a risk that the door body will collide with the person. [Means for solving the problem]

[0005] In view of the above problems, the present invention has the following configuration. A door body opening alarm that is attached to a door body or a frame body surrounding the door body, characterized in that it is integrally equipped with a base member that spans the door body or the frame body in the forward direction, a sensing unit that detects an event that suggests the door body is about to open, and an alarm unit that issues an alarm in response to detection by the sensing unit. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to notify a person on the opening side that the door body is about to open, and it is easy to attach to the door body. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing a state in which a door body is closed in a fitting device equipped with an example of a door body opening alarm according to the present invention. [Figure 2] FIG. 2 is a perspective view showing the door body of the same fitting device in an open state. [Figure 3] This is a vertical cross section of the fitting device with the door body closed, and hatching indicating the cross section has been omitted. [Figure 4] 1 is a side view showing a state before a door opening alarm according to the present invention is attached to a door. [Figure 5] 10 is a flowchart showing an example of control of the door opening alarm. [Figure 6] FIG. 10 is a front view showing another example of installation of the door body opening alarm. [Figure 7] 10 is a perspective view showing a fitting device equipped with another example of a door body opening alarm according to the present invention, in a state immediately after the alarm unit is activated when the door body is closed. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] This embodiment discloses the following features. The first feature is a door body opening alarm that is attached to a door body or a frame body surrounding the door body, and is integrally equipped with a base member that spans the door body or the frame body in the forward direction, a sensing unit that senses an event that suggests the door body is about to open, and an alarm unit that issues an alarm in response to detection by the sensing unit (see Figures 1 to 7). Here, the "events that are expected to open the door body" include the initial opening operation of the door body, events that occur just before the door body opens, and the like.

[0009] The second feature is that the door opening alarm is attached to the door, The base member is formed so as to straddle the end of the door body in the door thickness direction (see FIGS. 1 to 7).

[0010] A third feature is that the base member is formed so as to contact three parts: an end portion of the door body, one surface of the door body, and the other surface of the door body (see FIGS. 2 to 4).

[0011] As a fourth feature, the sensing unit is connected to the base member so as to be located on one side of the door body, and the notification unit is connected to the base member so as to be located on the other side of the door body. R (See Figures 2 to 4.)

[0012] A fifth feature is that the sensing unit senses an object on the opposite side of the door body from the opening side in a non-contact manner (see FIG. 3).

[0013] As a sixth feature, the notification unit is a device that emits light as the notification (see FIGS. 1, 3, 6 and 7).

[0014] As a seventh feature, the notification unit is a projection device that projects a notification image on the opening side of the door body (see FIG. 7).

[0015] As an eighth feature, the notification image is an arc-shaped image that follows the rotation locus of the door body (see FIG. 7).

[0016] As a ninth feature, electrical wiring is provided between the sensing unit and the notifying unit so as to straddle the end of the door body along the base member in the door thickness direction (see FIGS. 3 and 4).

[0017] As a tenth feature, the fitting device is configured with the door body opening notification (see Figs. 1 to 7).

[0018] <Specific embodiment> Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings. In the following description, the term "visible direction" refers to the width direction (left-right direction) of the frame body. The term "visible direction" refers to the thickness direction of the frame that is approximately perpendicular to the "visible direction." Additionally, "inside the frame" means the inside of the frame body, and "outside the frame" means the outside of the frame body. Furthermore, the "opening width direction" refers to the lateral width direction of the opening that is opened and closed by the door body, and in this embodiment, this is the same direction as the "finding direction." In addition, the "door thickness direction" means the direction of the thickness of the door body, which in this embodiment is the same direction as the "visible direction."

[0019] 1 to 4 show an example of a fitting device equipped with a door body opening alarm according to the present invention. This fixture device 1 is a door device comprising a frame body 10 having an opening A in the center, a door body 20 that rotates within the frame body 10 to open and close the opening A, and a door body opening alarm 30 that detects and issues an alarm when an event that could lead to the door body 20 opening occurs.

[0020] The frame body 10 comprises a door-end side frame member 11 facing the door-end portion of the door body 20 in the closed state, a door-front side frame member 12 facing the door-end portion of the door body 20, and an upper frame member 13 facing the upper end portion of the door body 20, and is configured in an inverted concave shape when viewed from the front, surrounding the opening A. This frame 10 is fixed to an opening in a wall of a building or the like in which the fitting device 1 is to be installed.

[0021] The lower side of the opening A may be the floor or the ground, or may be a door sill (lower frame member) or the like extending between the lower ends of the trailing edge side frame member 11 and the leading edge side frame member 12. In addition, in FIG. 2, reference numeral 12a denotes a door stop portion that is located inside the frame of the door-end side frame member 12 and that receives the door body 20 when the door is fully closed.

[0022] The door body 20 is formed in a rectangular shape when viewed from the front and has a predetermined thickness. A handle portion 21 is provided on the front and back surfaces of the door body 20 at the door end side and near the center in the vertical direction. This handle 21 is the part that passersby touch to open or close the door body 20. The handle 21 in the illustrated example is a doorknob that can be rotated, and when rotated, a latch 22 (see FIG. 2) appears and disappears from the door edge surface of the door body 20. This latch 22 fits into and disengages from a latch receiver (not shown) of the door edge side frame member 12.

[0023] A locking mechanism (not shown) is provided on the door body 20 as needed. This locking mechanism engages and disengages a deadbolt, which is extended and retracted by operating a thumb turn or key, into a recessed seat (not shown) in the door-end frame member 12.

[0024] The trailing edge portion of the door body 20 is rotatably connected to the trailing edge frame member 11 via a plurality of hinges 23 spaced apart in the vertical direction. The door body 20 rotates around the hinge 23 as a fulcrum, and opens and closes by tracing an arc-shaped path at the door edge.

[0025] A door closer 24 is provided between the door body 20 and the frame body 10 configured as described above, which automatically closes the door body 20 while applying resistance to the closing movement of the door body 20. The door closer 24 is a well-known mechanism that uses a plurality of link members, biasing members, dampers, etc. to automatically close the door body 20 slowly. This door closer 24 may be replaced with one having a structure other than that shown in the illustration, or may be omitted.

[0026] The door opening alarm 30 integrally comprises a base member 31 formed to span the end of the door body 20 from one side to the other, a sensing unit 32 that senses an event that may lead to the door body 20 being opened, and an alarm unit 33 that issues an alarm in response to detection by the sensing unit 32.

[0027] The base member 31 is formed in a generally concave shape that fits into the end of the door body 20 by contacting three parts: a first contact piece 31a that contacts the end of the door body 20, a second contact piece 31b that contacts one surface of the door body 20, and a third contact piece 31c that contacts the other surface of the door body 20 (see Figure 4). The base member 31 can be formed by bending a strip of metal material, or by molding a synthetic resin material into the generally concave shape.

[0028] According to the illustrated example, the first contact piece portion 31a is formed so as to contact the upper end portion of the door body 20 across the door thickness direction.

[0029] The second contact piece 31b extends downward from one end of the first contact piece 31a in the door thickness direction, and the inner surface of the extending portion contacts one surface of the door body 20. In this second contact piece portion 31b, the end side in the extending direction (the lower end side in the illustrated example) is formed in a substantially L-shaped vertical cross section, bending in a direction away from the surface of the door body 20. The sensing unit 32 is fitted and fixed in this L-shaped portion (see FIG. 4).

[0030] The third contact piece 31c extends downward from the other end of the first contact piece 31a in the door thickness direction, and the inner surface of the extending portion contacts the other surface of the door body 20. The end side of the third contact piece 31c in the extending direction (the lower end side in the illustrated example) is formed in a substantially L-shaped vertical cross section, bending in a direction away from the surface of the door body 20. The notification unit 33 is fitted and fixed in this L-shaped portion.

[0031] The sensing unit 32 is a sensor that non-contactly senses an object such as a person entering a predetermined sensing area E on the side opposite to the opening side of the door body 20 (the left side in FIG. 3). For this sensing unit 32, well-known sensors such as an area sensor, a 3D sensor, or a pyroelectric sensor can be used. The sensing area E is set below the sensing unit 32 within a range close to the surface of the door body 20 on the side opposite to the opening side. The sensing portion 32 is connected to the second contact piece 31b of the base member 31 so as to be located on one side of the door body 20.

[0032] The notification unit 33 is a light-emitting device that emits light to notify the opening direction. The notification unit 33 in the illustrated example includes an LED that emits light in the opening direction of the door body 20, and a control unit 33a that causes the LED to emit light in response to a detection signal from the detection unit 32. The notification unit 33 is located on the other surface side of the door body 20 (substantially directly behind the sensing unit 32 in the illustrated example) and is connected to the base member 31. An electric wiring 34 is provided between the notification unit 33 and the sensing unit 32.

[0033] The electrical wiring 34 is an electric wire provided along the base member 31 so as to straddle the end of the door body 20 from one surface side to the other surface side of the door body 20 . In the illustrated example, this electrical wiring 34 is arranged along the outer part of the base member 31 that does not contact the door body 20 (i.e., between the base member 31 and the frame body 10), and transmits the detection signal of the detection unit 32 to the control unit 33a of the alarm unit 33.

[0034] As another example of the electrical wiring 34, it is also possible to provide it along the inner portion of the base member 31 (that is, between the base member 31 and the door body 20). Furthermore, as another example, part or all of the control unit 33a may be provided on the sensing unit 32 side, and a control signal output from the control unit 33a in response to the sensing signal of the sensing unit 32 may be supplied to the notification unit 33 via electrical wiring 34. Furthermore, as another example, it is also possible to omit the electric wiring 34 and transmit the detection signal of the detection unit 32 to the notification unit 33 by a wireless transceiver.

[0035] The power source for the alarm unit 33 is preferably a battery, a charged battery, or the like, so that power can be supplied even in the event of a disaster. This power source is detachable and may be housed within the sensing unit 32 or the alarm unit 33, or may be provided separately from the sensing unit 32 or the alarm unit 33 and integrated with the base member 31.

[0036] The door opening alarm 30 having the above-described configuration is detachably mounted at an appropriate position in the width direction (close to the center in the illustrated example) on the upper end of the door 20 (see FIG. 4). The door opening alarm 30 is fixed to the door 20 so that it will not slip off or come off. This fixing means may be, for example, a fitting that elastically expands the space between the second contact piece 31b and the third contact piece 31c to fit into the door 20. Other examples of this fixing means include screwing, adhesion using an adhesive or double-sided tape, adhesion by a magnet, adhesion by a suction cup, or an appropriate combination of these.

[0037] Next, an example of control by the control unit 33a will be described in detail with reference to the flowchart shown in FIG. 1, in the initial state, the LED of the notification unit 33 is turned off. The detection unit 32 forms a detection area E on the side of the door 20 opposite to the opening side.

[0038] In this state, if the control unit 33a receives a detection signal from the detection unit 32, the process proceeds to the next step S2, and if not, the process jumps to step S4.

[0039] In step S2, the LED of the notification unit 33 is turned on to alert people in the opening direction that the door body 20 may be about to open.

[0040] At this point, if there is a person on the opening side of the door body 20, that person will know that the door body 20 is about to start opening operation because the notification unit 33 is lit. Therefore, the person can take action to avoid coming into contact with the door body 20 as it opens.

[0041] Next, in step S3, it is determined whether a predetermined time (two seconds in the illustrated example) has elapsed since the sensing signal of the sensing unit 32 was turned off. More specifically, the control unit 33a waits for the detection signal of the detection unit 32 to turn off, and when it does, starts counting using a timer (not shown), determines whether a predetermined time has elapsed, and if so, proceeds to step S4. This step S3 makes it possible to prevent malfunctions of the detection unit 32 due to chattering or the like.

[0042] In the next step S4, the LED of the notification unit 33 is turned off, and the process returns to step S1.

[0043] Therefore, with the above-described configuration of the door device 1, it is possible to prevent the door body 20 from opening when a person is present on the opening side of the door body 20, and prevent the person on the opening side of the door body 20 from noticing the opening operation of the door body 20, and ultimately to prevent the door body 20 performing the opening operation from coming into contact with the person. Furthermore, the door opening alarm 30 having the above-described configuration is fitted into the upper end of the door 20 in a recessed shape, so that it can be easily attached to the door 20 . Moreover, since the door body open alarm 30 is detachable from the door body 20, it can be easily retrofitted to a door body 20 that does not have a door body open alarm 30 in advance. In addition, maintenance and replacement of the door body open alarm 30 are also easy.

[0044] <Modification> According to the above embodiment, as a particularly preferred embodiment, the door body open alarm 30 is attached to the upper end of the door body 20. However, as another example, the door body open alarm 30 may be attached to the door edge side of the door body 20, as in the door fixture device 2 shown in Figure 6. In this fitting device 2, the base member 31 is located between the door edge of the door body 20 and the door edge side frame member 12, and straddles the door edge of the door body 20 in the door thickness direction. Then, this base member 31 is fixed to the door edge of the door body 20 by the fixing means described above. The door body opening alarm 30 in the door device 2 forms a sensing area E using a sensing unit 32 on the non-open side of the door body 20, and emits light from an alarm unit 33 on the open side in response to a person entering this sensing area E.

[0045] As another example, the door body open alarm 30 can be provided on the trailing edge of the door body 20 so that the base member 31 extends in the door thickness direction between the trailing edge of the door body 20 and the trailing edge frame member 11, or the door body open alarm 30 can be provided on the lower edge of the door body 20 so that the base member 31 extends in the door thickness direction between the lower edge of the door body 20 and the lower immovable surface (floor, ground, etc.).

[0046] Furthermore, as another example, as in the fitting device 3 shown in FIG. 7, the door body opening alarm 30 attached to the upper end side of the door body 20 may be replaced with a door body opening alarm 30'. The door opening alarm 30' is the door opening alarm 30 in which the alarm section 33 is replaced with an alarm section 33'. The notification unit 33′ is a projection device that projects a notification image X onto a lower immovable surface (for example, a floor or the ground) or a wall surface on the opening direction side of the door body 20. For example, a device called a projector or a line light can be applied to this projection device. The notification image X by the notification unit 33' is an arc-shaped image that follows the rotation locus of the door tip portion of the door body 20. Therefore, according to the fitting device 3 shown in FIG. 7, the arc-shaped notification image X projected onto the lower immovable surface can make the rotation trajectory of the door body 20 perceptible to a person on the opening side.

[0047] Furthermore, according to the above embodiment, the sensing unit is configured to sense people on the opening side of the door body without contact, but other examples of this sensing unit include a mode in which a limit switch, proximity switch, etc. senses by contact or without contact when the door body moves away from an immovable part around the door body (for example, a frame body, etc.) immediately after the opening operation, or a mode in which a touch sensor, etc. senses a touch operation on the door body by a person on the opposite side of the door body from opening.

[0048] Furthermore, according to the above embodiment, the alarm unit is configured to emit light to alert people on the opening side to the opening of the door body 20, but other examples of this alarm unit include a mode in which the alarm unit emits sound to alert people to the opening of the door body 20, a mode in which the alarm unit emits vibration to alert people to the opening of the door body 20, or a mode in which the alarm unit emits an output that is an appropriate combination of sound, light, vibration, etc. to alert people to the opening of the door body 20.

[0049] Furthermore, in the above embodiment, one door body opening alarm is provided for one door body 20, but as another example, a plurality of door body opening alarms may be provided for one door body 20. In this case, a preferred example is to omit the door stop portion 12a from the frame body 10 and set the door body 20 to open in both directions in the door thickness direction, and to arrange the door body 20 with the door body open alarm having the alarm portion 33 facing in one direction in the door thickness direction and the door body open alarm having the door body open alarm 30 facing in the other direction in the door thickness direction. According to this example, regardless of whether the door body 20 opens in either direction along the door thickness, the door body opening alarm can detect the event that could lead to the door opening and alert people on the opposite side of the opening direction.

[0050] In addition, in the above embodiment, the door body opening alarm is configured to be attached to the door body 20 as a particularly preferred example, but as another example of the above door body opening alarm, it is also possible to configure it to be detachably attached across the frame body 10 (for example, the upper frame member 13) in the forward direction.

[0051] Furthermore, according to the above embodiment, the fitting device having the above configuration is a door device, but the basic structure of this fitting device can be applied to fitting devices equipped with a rotating door body (sometimes called an opening / closing body or door body, etc.), such as a folding door device, a balanced door device, or an opening / closing window.

[0052] The present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present invention. [Explanation of symbols]

[0053] 1, 2, 3: Door and window equipment 10:Frame body 20: Door body 30,30': Door opening alarm 31: Base member 31a: First contact piece 31b: Second contact piece part 31c: Third contact piece 32: Sensing part 33: Information Department X: Notification image

Claims

1. A door body opening alarm attached to a door body or a frame body surrounding the door body, A door opening alarm characterized by being integrally equipped with a base member that spans the door body or the frame body in the forward direction, a sensing unit that detects an event that may lead to the door body being opened, and an alarm unit that issues an alarm in response to detection by the sensing unit.

2. A door body opening alarm that is attached to a door body, 2. The door opening alarm according to claim 1, wherein the base member is formed so as to straddle the end of the door in the door thickness direction.

3. 3. The door opening alarm according to claim 1, wherein the base member is formed so as to contact three portions of the end of the door body, one surface of the door body, and the other surface of the door body.

4. A door body opening alarm device as described in any one of claims 1 to 3, characterized in that the sensing unit is connected to the base member so as to be located on one side of the door body, and the alarm unit is connected to the base member so as to be located on the other side of the door body.

5. 5. The door opening alarm according to claim 1, wherein the sensing section senses an object on the opposite side of the door body from the opening side in a non-contact manner.

6. 6. The door opening alarm according to claim 1, wherein the alarm unit is a device that emits light as the alarm.

7. 7. The door opening alarm according to claim 1, wherein the alarm unit is a projection device that projects an alarm image on the opening side of the door.

8. 8. The door-opening alarm according to claim 7, wherein the alarm image is an arc-shaped image that follows the locus of rotation of the door.

9. A door body opening alarm device as described in any one of claims 1 to 8, characterized in that electrical wiring between the sensing unit and the alarm unit is provided so as to span the end of the door body along the base member in the door thickness direction.

10. A fitting device comprising the door body opening notification device according to any one of claims 1 to 9.

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