Door knob unit and building fixture equipped with this door knob unit

Abstract

This indicates that the door may open. [Solution] A door knob unit A is attached to a door body 20, comprising knobs provided on the opening side and the non-opening side, a sensing unit that detects a person on at least one of the opening side and the non-opening side, and a knob drive device 41 that moves the knob on at least the other side in response to the detection by the sensing unit.

Description

Technical Field

[0001] The present invention relates to a door knob unit that immerses a latch by operating a knob to release an engaged state, and a fitting device including this door knob unit.

Background Art

[0002] Conventionally, as described in Patent Document 1 for example, some fitting devices include a door body that rotates to open an opening, a frame body that surrounds the left and right end portions and the upper end portion of the door body in a U-shape, and a handle portion (such as a door knob) for opening and closing operations.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, according to the above prior art, when the door body performs an opening operation while a person is on the opening direction side of the door body, there is a risk that the door body may come into contact with the person on the opening direction side.

Means for Solving the Problems

[0005] In view of such problems, the present invention has the following configuration. A door knob unit to be mounted on a door body configured to rotate in one direction to open from a fully closed state, comprising: knobs provided on the opening side and the non-opening side, respectively; a sensing unit for sensing a person on at least one of the opening side and the non-opening side; and a knob drive device for moving the knob on at least the other side in response to the sensing by the sensing unit, wherein the sensing units are provided on the opening side and the non-opening side respectively to sense people on both sides, and the knob drive device is activated on the condition that both of these sensing units sense the person, wherein of the two sensing units, the sensing unit on the non-opening side senses a person on the non-opening side in proximity or by contact, and the sensing unit on the opening side is a non-contact sensing sensor with a longer detection distance than the sensing unit on the non-opening side. Furthermore, the present invention comprises the following configurations. A door knob unit to be attached to a door body, comprising: knobs provided on the open side and the non-open side, respectively; a sensing unit for sensing a person on at least one of the open side and the non-open side; and a knob driving device for moving the knob on at least the other side in response to the sensing by the sensing unit, wherein the knob driving device comprises a rotational driving device for rotating the knob by a predetermined amount. Furthermore, the present invention comprises the following configurations. A door knob unit to be attached to a door body, comprising: knobs provided on the open side and the non-open side, respectively; a sensing unit for sensing a person on at least one of the open side and the non-open side; and a knob driving device for moving at least the knob on the other side in response to the sensing by the sensing unit, wherein the sensing unit for sensing a person on one side is a sensor for sensing the distance to the person, and changes the movement of the knob on the other side according to the distance. Furthermore, the present invention comprises the following configurations. A door knob unit to be attached to a door body, comprising: knobs provided on the open side and the non-open side, respectively; a sensing unit for sensing a person on at least one of the open side and the non-open side; and a knob driving device for moving at least the knob on the other side in response to the sensing by the sensing unit, wherein the sensing unit for sensing a person on one side is a sensor for sensing the speed of movement of the person, and the movement of the knob on the other side is changed in accordance with the speed of movement. [Effects of the Invention]

[0006] As described above, the present invention is configured such that when used in a door or window device, the movement of the knob can indicate that the door may be opened. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view showing a building fixture device equipped with an example of a door knob unit according to the present invention. [Figure 2] This is a disassembled perspective view of the door handle unit. [Figure 3] This is a schematic side view illustrating the operation of the door knob unit. [Figure 4] This is a flowchart showing the operation of the door knob unit. [Figure 5] This is an exploded perspective view showing another example of the door knob unit according to the present invention. [Figure 6] This is a schematic side view illustrating the operation of the door knob unit. [Figure 7] This is a flowchart showing the operation of the door knob unit. [Modes for carrying out the invention]

[0008] This embodiment discloses the following features: The first feature is a door knob unit attached to a door body, comprising knobs provided on the opening side and the non-opening side respectively, a sensing unit for sensing a person on at least one of the opening side and the non-opening side, and a knob driving device for moving the knob on at least the other side according to the sensing by the sensing unit (see FIGS. 2 and 3). Here, "moving the knob" includes vibrating the knob, rotating the knob, and the like.

[0009] As a second feature, the sensing unit is provided on the opening side, and the knob on the non-opening side is moved by the knob driving device on condition that a person on the opening side is sensed by the sensing unit (see FIGS. 3 and 4).

[0010] As a third feature, the sensing unit is provided on the non-opening side, and the knob on the opening side is moved by the knob driving device on condition that a person on the non-opening side is sensed by the sensing unit.

[0011] As a fourth feature, the sensing units are respectively provided on the opening side and the non-opening side so as to sense people on both the opening side and the non-opening side, and the knob driving device is operated on condition that both sensing units sense people (see FIGS. 3 and 4).

[0012] As a fifth feature, among the two sensing units, the sensing unit on the non-opening side senses a person on the non-opening side by proximity sensing or contact sensing, and the sensing unit on the opening side is a non-contact sensing type sensor with a longer detection distance than the sensing unit on the non-opening side (see FIGS. 3 and 4).

[0013] As a sixth feature, the knob on the non-opening side is moved by the knob driving device (see FIGS. 3 and 4).

[0014] As a seventh feature, the sensing unit is provided on the knob (see FIGS. 2 and 5).

[0015] As an eighth feature, the knob driving device includes a vibration generating device for vibrating the knob (see FIGS. 2 and 3).

[0016] As the ninth feature, the knob driving device includes a rotary driving device that rotates the knob by a predetermined amount (see FIGS. 5 and 6).

[0017] As the tenth feature, the knob includes a shaft portion rotatably supported with respect to a unit main body attached to the door body, and a grip portion rotatable relative to the shaft portion. The knob driving device is provided between the shaft portion and the grip portion, and includes an electric motor that drives and rotates the grip portion relative to the shaft portion, and an external force transmission mechanism that transmits the rotational operation force from the outside to the shaft portion when the rotational operation force is applied to the grip portion (see FIG. 5).

[0018] As the eleventh feature, the sensing portion that senses a person on one side is a sensor that senses the distance from the person, and changes the movement of the knob on the other side according to the distance.

[0019] As the twelfth feature, the sensing portion that senses a person on one side is a sensor that senses the moving speed from the person, and changes the movement of the knob on the other side according to the moving speed.

[0020] As the thirteenth feature, sound and / or light are emitted along with the operation of the knob driving device.

[0021] The fourteenth feature is that a fitting device is configured by including the above door knob unit (see FIGS. 1, 3, and 6).

[0022] The fifteenth feature is that a solar power generation device for supplying power to the knob driving device is included.

[0023] <First Embodiment> Next, a specific embodiment having the above features will be described in detail based on the drawings. In the following description, the "open side" and the "open direction side" mean the direction side in which the door body in the fully closed state performs an opening operation. For example, according to FIG. 3, the left side is the open side. Furthermore, "opposite-opening side" refers to the side opposite to the opening side; for example, in Figure 3, the right side is the opposite-opening side.

[0024] Figure 1 shows an example of a building fixture equipped with a door knob unit according to the present invention. This door and window device 1 comprises a frame 10 having an opening in the center, and a door body 20 that rotates within the frame 10 to open and close the opening. When it detects a person on the open side and the non-open side of the door body 20, it forcibly moves the non-open side knob 37 to alert the person attempting to open the door body 20 on the non-open side.

[0025] The frame 10 comprises a door-end side frame member 11 facing the door-end portion of the closed door body 20, a door-end side frame member 12 facing the door-head portion of the door body 20, and an upper frame member 13 facing the upper end of the door body 20, and is configured in an inverted U-shape when viewed from the front, surrounding the central opening. This frame 10 is fixed to an opening in the structural wall of the building or other structure on which the joinery device 1 is to be installed.

[0026] The lower side of the frame 10 may be the floor or ground, or it may be a threshold (lower frame member) extending between the lower ends of the door-end frame member 11 and the door-front frame member 12. A door stopper portion 10a with a roughly stepped cross-section is provided near the inside of the frame 10 to receive the door body 20 when it is fully closed (see Figure 3). Furthermore, when the door body 20 moves to the left in Figure 3, it moves away from the door stop 10a, and when it moves to the right in the same figure, it contacts or approaches the door stop 10a.

[0027] The door body 20 is constructed in a rectangular shape when viewed from the front, with a predetermined thickness, by supporting two outer plates 21 spaced apart in the thickness direction with an inner core material and structural members (not shown). A door knob unit A is mounted on the leading edge side of the door body 20, positioned between the outer panels 21 on both sides in the thickness direction. The door knob unit A has an opening knob 36 and a non-opening knob 37 that pass through the outer panels 21 on both sides in the thickness direction, respectively.

[0028] The tail end portion of the door body 20 is rotatably connected to the tail end frame member 11 via a hinge 23 (see Figure 1). The hinge 23 is the pivot point for the door body 20, and can be a well-known flat hinge, flag hinge, pivot hinge, etc.

[0029] As shown in Figure 2, the door knob unit A consists of a rectangular box-shaped unit body 31 that is flattened in the door thickness direction, a cylinder 32 that protrudes toward the opening side from the upper side of the unit body 31, a key 33 that is inserted into and removed from the cylinder 32, a thumbturn 34 that protrudes toward the non-opening side from the upper side of the unit body 31, a deadbolt 35 that extends and retracts toward the door edge from the unit body 31 by the rotation of the key 33 or thumbturn 34, an opening-side knob 36 that protrudes toward the opening side from the lower side of the unit body 31, and the unit body 3 The door comprises a non-opening knob 37 that protrudes from the lower side of 1 toward the non-opening side, a latch 38 that extends and retracts toward the door edge by the operation of the opening knob 36 and the non-opening knob 37, an opening side sensing unit 39 that detects a person on the open side, a non-opening side sensing unit 40 that detects a person on the non-opening side, a knob drive device 41 that forcibly moves the non-opening knob 37 in response to the sensing signals from the opening side sensing unit 39 and the non-opening side sensing unit 40, and a receiving member 42 provided on the door edge side frame member 12 that fits onto the deadbolt 35 and the latch 38. These parts are configured to be detachable (in other words, assembleable and disassembled).

[0030] The unit body 31 comprises a latch mechanism that retracts the protruding latch 38 by operating either the opening knob 36 or the non-opening knob 37, thereby releasing the engagement between the latch 38 and the receiving member 42, and a locking mechanism that extends and retracts the deadbolt 35 by rotating the key 33 or thumbturn 34 inserted into the cylinder 32, thereby engaging and disengaging it from the receiving member 42. These latch and locking mechanisms can be constructed using well-known structures.

[0031] The cylinder 32 is a substantially cylindrical member having a keyhole for inserting and removing the key 33. It is connected to the unit body 31 by passing through one outer plate 21 of the door body 20, and transmits the rotational motion of the key 33 to the mechanism inside the unit body 31.

[0032] The thumbturn 34 is coaxial with the cylinder 32, passes through the other outer plate 21, and is connected to the unit body 31, transmitting the rotation of the externally exposed operating knob 34a to the mechanism inside the unit body 31.

[0033] The deadbolt 35 extends and retracts from the door-side surface of the unit body 31 and engages with the receiving member 42 by rotating the key 33 or thumbturn 34 inserted into the cylinder 32.

[0034] Both the opening knob 36 and the non-opening knob 37 are components that transmit the rotational force when the knob is rotated to the mechanism inside the unit body 31. The opening knob 36 is formed in a substantially L-shape, integrally having a shaft-like portion 36a that is rotatably supported with respect to the unit body 31, and a gripping portion 36b that is rotatable opposite to the shaft-like portion 36a. The axial portion 36a is provided with a connecting shaft 36c that is connected to the non-opening knob 37. The gripping portion 36b is provided with an open-side sensing portion 39, which will be described later.

[0035] The non-opening knob 37 is formed in a substantially L-shape, integrally having a shaft-like portion 37a that is rotatably supported with respect to the unit body 31, and a gripping portion 37b that is rotatable opposite to the shaft-like portion 37a. The axial portion 37a is connected to the non-opening knob 37 via a connecting shaft 36c so as to be able to rotate integrally with it. The gripping portion 37b is provided with a non-open side sensing portion 40, which will be described later. Furthermore, the non-opening knob 37 of the above configuration is provided with a knob drive device 41, which will be described later.

[0036] The latch 38 is a component that extends and retracts from the door-side surface of the unit body 31 and engages with and disengages from the receiving member 42. This latch 38 is biased to protrude toward the door-side by a biasing member (such as a spring) not shown, and is configured to retract into the unit body 31 by a rotational operation of the opening-side knob 36 or the non-opening-side knob 37.

[0037] In Figure 2, reference numeral 43 denotes a round base that covers the insertion portion of the opening-side knob 36 into the door body 20 in an annular shape, and reference numeral 44 denotes a round base that covers the insertion portion of the non-opening-side knob 37 into the door body 20 in an annular shape.

[0038] Furthermore, the opening-side sensing unit 39 is provided on the gripping portion 36b of the opening-side knob 36 to sense objects (including people) approaching the opening side of the door body 20. This open-side sensing unit 39 is a non-contact sensing sensor with a longer detection distance than the non-open-side sensing unit 40. This open-side sensing unit 39 can be equipped with a well-known sensor, such as an area sensor, a 3D sensor, or a pyroelectric sensor.

[0039] Furthermore, the anti-opening side sensing unit 40 is provided on the gripping portion 37b of the anti-opening side knob 37 so as to detect an object (including a person) approaching the anti-opening side of the door body 20. This non-open side sensing unit 40 is a sensor that detects a person on the non-open side in proximity without contact. The anti-open side sensing unit 40 can be a well-known sensor such as an area sensor, a 3D sensor, or a pyroelectric sensor, and it is acceptable to use one that has a shorter detection distance than the open side sensing unit 39.

[0040] The knob drive device 41 is provided within the axial portion 37a or gripping portion 37b of the non-opening knob 37, and forces the non-opening knob 37 to vibrate. For example, the knob drive device 41 can be a rotary vibration motor that generates vibration by rotating an eccentric vibrator, or a linear vibration motor that generates vibration by reciprocating a vibrator. The direction of vibration by this knob drive device 41 can be, for example, the axial direction, radial direction, circumferential direction, or other direction of the non-opening side knob 37.

[0041] Furthermore, the open-side knob 36 and the non-open-side knob 37 are provided with a battery (not shown) that powers the knob drive device 41, a control circuit (not shown) that controls the knob drive device 41 in response to the sensing signals from the open-side sensing unit 39 and the non-open-side sensing unit 40, and electrical wiring for these components.

[0042] Furthermore, the receiving member 42 is a fixed part integrally provided with the door frame member 12. This receiving member 42 consists of a plate-shaped strike 42a that passes through the deadbolt 35 and the latch 38, respectively, and a trap guard 42b that fits concavely into the deadbolt 35 and the latch 38 (see Figure 5).

[0043] Next, an example of controlling the door knob unit A and the joinery device 1 with the above configuration will be explained in detail based on the flowchart shown in Figure 4. When the door body 20 is fully closed, the control circuit determines whether or not there is a remote sensing signal from the open-side sensing unit 39 (step S1). If there is a remote sensing signal, the process proceeds to the next step; otherwise, it waits for a remote sensing signal from the open-side sensing unit 39.

[0044] In the next step S2, it is determined whether or not there is a proximity detection signal from the non-open side sensing unit 40. If there is a proximity detection signal, the process proceeds to the next step; otherwise, the subsequent processing is skipped and the process returns to step S1.

[0045] In the next step S3, the knob drive device 41 is activated to vibrate the non-opening knob 37, and the process returns to step S1. Although not shown in the diagram, if neither a remote sensing signal nor a proximity sensing signal is present in steps S3 to S1, the operation of the knob drive device 41 is stopped.

[0046] Therefore, according to the flowchart in Figure 4, for example, if a person is on the opening side of the door 20 and a person on the non-opening side approaches the door 20 to open it, the knob 37 on the non-opening side will vibrate. This allows the person on the non-opening side to be notified that there is a person on the opening side of the door 20, and in turn, encourages the person on the non-opening side not to open the door suddenly (to open it slowly).

[0047] In addition, while door handle unit A uses two sensing units, an open-side sensing unit 39 and a non-open-side sensing unit 40, in other examples, the non-open-side sensing unit 40 can be omitted. In other words, in this alternative example, the anti-open side sensing unit 40 is omitted, and the anti-open side knob drive device 41 is activated only when the open side sensing unit 39 detects the opening.

[0048] As another example, with respect to the door knob unit A, it is also possible to omit the open-side sensing unit 39 from the open-side sensing unit 39 and provide a knob drive device 41 on the open-side knob 36, and configure the knob drive device 41 to operate only when the open-side sensing unit 39 detects something.

[0049] As another example, in the case of door knob unit A, a knob drive device 41 is also provided on the open-side knob 36, and the knob drive device 41 on the opposite side (or both sides) to the sensing side is activated when either the open-side sensing unit 39 or the non-open-side sensing unit 40 senses something.

[0050] Furthermore, in the case of door knob unit A, the detection distance of the open-side sensing unit 39 is made longer than the detection distance of the non-open-side sensing unit 40. However, other examples include a configuration in which the detection distances of the open-side sensing unit 39 and the non-open-side sensing unit 40 are made approximately the same, or a configuration in which the detection distance of the open-side sensing unit 39 is made shorter than the detection distance of the non-open-side sensing unit 40.

[0051] Furthermore, in the door handle unit A, the anti-opening side sensing unit 40 is a non-contact sensor that detects a person in close proximity. However, as an alternative to this anti-opening side sensing unit 40, it is also possible to use a contact-type sensing sensor such as a capacitive touch sensor.

[0052] <Second Embodiment> Next, other embodiments of the present invention will be described. In the embodiments described below, a part of the above-mentioned joinery device 1 has been modified. Therefore, the modified part will be described in detail, and common parts will be indicated by common reference numerals, and redundant detailed explanations will be omitted.

[0053] The joinery device 2 shown in Figure 6 is the same as the joinery device 1 described above, but with the door knob unit A replaced by a door knob unit B. Door knob unit B is a modification of door knob unit A, in which the non-open side sensing unit 40 is replaced with a non-open side sensing unit 40', the knob drive device 41 is omitted, and an open side knob drive device 51 and a non-open side knob drive device 52 are provided.

[0054] In the door knob unit B, the opening knob 36 is divided into a shaft-like portion 36a and a gripping portion 36b that is rotatable around the shaft-like portion 36a, with a knob drive device 51 provided between them. Similarly, the non-opening knob 37 is divided into a shaft portion 37a and a gripping portion 37b, with a knob drive device 52 provided between them.

[0055] The anti-opening side sensing unit 40' is provided on the gripping portion 37b of the anti-opening side knob 37 to sense an object (including a person) approaching the anti-opening side of the door body 20. This non-open side sensing unit 40' is a proximity sensing sensor with the same configuration as the open side sensing unit 39, and remotely senses at approximately the same detection distance as the open side sensing unit 39.

[0056] The opening knob drive device 51 is provided between the shaft portion 36a and the gripping portion 36b and comprises an electric motor (not shown) that drives the gripping portion 36b to rotate in opposition to the shaft portion 36a, and an external force transmission mechanism (not shown) that transmits the rotational force applied to the gripping portion 36b from an external source to the shaft portion 36a.

[0057] The electric motor comprises a stator (not shown) and a rotor (not shown) that rotates within the stator. The stator is fixed to the shaft portion 36a, and the rotor is connected to the gripping portion 36b so as to be integrally rotatable. When energized, the electric motor rotates the rotor and gripping portion 36b in relation to the stator.

[0058] The external force transmission mechanism may, for example, be provided in the electric motor with a clutch mechanism that allows the rotor to rotate relative to the stator when energized, and fixes the rotor to the stator in a non-rotatable state when not energized. Alternatively, the electric motor may be provided with a mechanism that locks the rotor to the stator in a non-rotatable state when an external rotational force (the rotational operating force) is applied to the rotor.

[0059] According to the knob drive device 51 configured above, when energized, the gripping portion 36b can be rotated by a predetermined amount by the rotational force of the electric motor. This amount of rotation should be approximately the same as the amount of rotation when the gripping portion 36b is rotated to release the latch 38. Furthermore, if a rotational force is applied to the gripping portion 36b from the outside, the external force transmission mechanism described above can transmit this rotational force to the shaft portion 36a, and further to the mechanism inside the unit body 31 and the non-opening knob 37.

[0060] Furthermore, when the knob drive device 51 is energized and the gripping portion 36b rotates, the shaft portion 36a receives a reaction force due to the rotation of the gripping portion 36b. However, the shaft portion 36a, upon receiving this reaction force, is prevented from rotating by its engagement with a mechanism within the unit body 31.

[0061] The knob drive device 52 on the non-opening side is configured to use the same mechanism as the knob drive device 51 above to forcibly rotate the gripping portion 36b by a predetermined amount using an electric motor when energized, and to transmit this rotational force to the shaft portion 37a when a rotational operating force is applied to the gripping portion 37b from the outside.

[0062] Furthermore, in the door knob unit B, the open-side knob 36 and the non-open-side knob 37 are provided with a battery (not shown) that powers the knob drive devices 51 and 52, a control circuit (not shown) that controls the knob drive devices 51 and 52 in response to the sensing signals from the open-side sensing unit 39 and the non-open-side sensing unit 40', and electrical wiring for these devices.

[0063] Next, an example of controlling the joinery device 2 with the above configuration will be explained in detail based on the flowchart shown in Figure 7. When the door body 20 is fully closed, the control circuit determines whether or not there is a remote sensing signal from the open-side sensing unit 39 (step S11). If there is a remote sensing signal, the process proceeds to the next step; otherwise, the process proceeds to step S13.

[0064] In the next step S12, the non-opening knob drive device 52 is activated to rotate the non-opening knob 37 by a predetermined amount, and the process returns to step S11. Although not shown in the diagram, if the remote sensing signal on the open side disappears between step S12 and step S11, the control signal for operating the knob drive device 52 on the non-open side is turned off.

[0065] In step S13, it is determined whether or not there is a remote sensing signal from the non-open side sensing unit 40'. If there is a remote sensing signal, the process proceeds to the next step; otherwise, the process returns to step S11. Then, in the next step S14, the opening knob drive device 51 is activated to rotate the opening knob 36 by a predetermined amount, and the process returns to step S11. Although not shown in the diagram, if the remote sensing signal from the non-open side disappears between step S14 and step S11, the control signal for operating the knob drive device 51 on the open side is turned off.

[0066] Therefore, according to the flowchart in Figure 7, for example, if a person approaches the door 20 from the open side, the knob 37 on the opposite side can be rotated by a predetermined amount to alert the person on the opposite side that there is a person on the open side. Similarly, if a person approaches the door 20 from the opposite side, the knob 37 on the open side can be rotated by a predetermined amount to alert the person on the open side that there is a person on the opposite side.

[0067] As shown in the flowchart of Figure 7, the system includes a process of rotating the non-opening knob 37 in response to remote detection of the opening side (steps S11 and S12) and a process of rotating the opening knob 36 in response to remote detection of the non-opening side (steps S13 and S14). However, in other examples, it is also possible to omit either of these two processes.

[0068] Furthermore, in the case of door handle unit B, both the open-side sensing unit 39 and the non-open-side sensing unit 40' are remotely sensing sensors. However, in other cases, one or both of these could be proximity sensors or contact sensors with a relatively short detection distance.

[0069] Another example is that in door knob unit B, one or both of the knob drive devices 51 and 52 can be replaced with the knob drive device 41 described above.

[0070] <Other variations> According to the above embodiment, the movement of the opening-side knob 36 or the non-opening-side knob 37 by the knob drive device is a vibration of a constant period or a rotation of a predetermined amount. However, in another preferred embodiment, the movement of the knob on the other side may be changed according to the distance between the person on one side and the door body 20. To explain in more detail, in this embodiment, for example, in the door knob unit A described above, the opening side sensing unit 39 is replaced with a distance sensor that senses the distance to a person. Then, a control circuit (not shown) increases the vibration of the knob drive device 41 as the distance sensed by the sensor decreases. According to this embodiment, the person on the knob drive device side can estimate how close the person on the sensing unit side has come to the door body 20 based on the change in the movement of the knob. The distance sensor should emit a signal corresponding to the distance from a person, but it is also possible to use a configuration that combines multiple non-contact sensing sensors with different detection distances.

[0071] Furthermore, in another preferred embodiment, the movement of the knob on the other side may be changed according to the movement speed of the person on the other side. To explain in more detail, in this embodiment, for example, in the door knob unit A described above, the opening side sensing unit 39 is replaced with a sensor that senses the speed of movement of a person. Then, a control circuit (not shown) increases the vibration of the knob drive device 41 as the speed of movement sensed by the sensor increases. According to this embodiment, the person on the knob drive device side can estimate how fast the person on the sensing unit side is approaching the door body 20 based on the change in the movement of the knob.

[0072] Furthermore, as an additional configuration to the above embodiment, sound or light may be emitted when the knob drive device 41, 51, or 52 is operated. To explain in more detail, in this embodiment, a sound generating device (for example, a speaker or buzzer, not shown) and a light-emitting device (for example, an LED or lighting device, not shown) are provided on the knob drive device side of the door body 20. Then, a control circuit (not shown) operates the knob drive device and the sound generating device and / or the light-emitting device in response to the sensing signal from the sensing unit on one side, thereby emitting sound and light. According to this configuration, the person on the knob drive unit side can be more effectively notified that there is a person on the sensing unit side.

[0073] Furthermore, the above embodiment may be further configured to include a solar power generation device that supplies power to the knob drive device 41. The solar power generation device comprises a solar panel (not shown) and a storage battery (not shown) for storing the electricity generated by the solar panel. The solar panel is, for example, provided on the outer panel 21 surface of the opening / closing body 20, and the storage battery is provided inside the opening / closing body 20 or the door unit A. The electricity output from the storage battery is used as a power source for the knob drive device 41 and the control circuit described above. According to this embodiment, the knob drive device 41 can be kept in a permanently operational state without requiring battery replacement or commercial power supply.

[0074] In the above embodiment, the open-side sensing unit 39 and the non-open-side sensing units 40, 40' are provided on the doorknob. However, in other examples, these open-side sensing units 39 and non-open-side sensing units 40, 40' can also be provided on the outer surface of the door body 20 or on a fixed part such as the frame 10.

[0075] Furthermore, while the above embodiment provides either the vibration generating device or the rotational driving device as the knob drive device, in other examples, the knob drive device may also be equipped with both the vibration generating device and the rotational driving device.

[0076] Furthermore, in the above embodiment, a door stopper 10a is provided so that the door body 20 rotates to open in one direction from the fully closed state. However, in other examples, the door stopper 10a is omitted, and the door body 20 is configured to rotate to open in both directions. A sensing unit for detecting people is provided on one side, and the knob drive device is provided on the other side (in other words, the opposite side) from the aforementioned side. Furthermore, it is also possible to configure the door body 20 so that it can open and rotate to both sides, provide the sensing parts on one side and the other side, provide the knob drive devices on the opposite side to the one side and the opposite side to the other side, and activate the corresponding knob drive device on the opposite side in response to the sensing part on one side or the other side.

[0077] Furthermore, although the above embodiment uses door knob units A and B in a door device, door knob units A and B can be applied to building fixtures that have a rotating door body (sometimes referred to as an opening / closing body or door body, etc.), such as folding door devices, balance door devices, and opening / closing windows.

[0078] The present invention is not limited to the embodiments described above and can be modified as appropriate without altering the essence of the invention. [Explanation of Symbols]

[0079] 20: Door Body 31: Unit body 32: Cylinder 36: Open side knob 37: Anti-opening knob 38: Latch 39: Open side sensing part 40,40': Opposite open side sensing part 41, 51, 52: Knob drive mechanism A, B: Door knob unit

Claims

1. A door handle unit that is attached to a door body configured to rotate in one direction to open from a fully closed position, It comprises knobs provided on the open side and the non-open side, a sensing unit that detects a person on at least one of the open side and the non-open side, and a knob drive device that moves at least the knob on the other side in response to the detection by the sensing unit. To detect people on both the open and non-open sides, the aforementioned sensing units are provided on the open side and the non-open side, respectively, and the knob drive device is activated based on detection by both of these sensing units. A door knob unit characterized in that, of the two sensing units, the sensing unit on the non-opening side detects a person on the non-opening side in proximity or by contact, and the sensing unit on the opening side is a non-contact sensing sensor with a longer detection distance than the sensing unit on the non-opening side.

2. The door knob unit according to claim 1, characterized in that the sensing unit on the non-opening side is a contact-sensing type sensing unit that detects a person on the non-opening side by contact.

3. A door handle unit that is attached to the door surface, It comprises knobs provided on the open side and the non-open side, a sensing unit that detects a person on at least one of the open side and the non-open side, and a knob drive device that moves at least the knob on the other side in response to the detection by the sensing unit. The door knob unit is characterized in that the knob drive device comprises a rotary drive device that rotates the knob by a predetermined amount.

4. The knob comprises a shaft-shaped portion rotatably supported with respect to the unit body attached to the door body, and a gripping portion rotatable opposite to the shaft-shaped portion. The door knob unit according to claim 3, characterized in that the knob driving device is provided between the shaft portion and the grip portion and comprises an electric motor that drives and rotates the grip portion in opposition to the shaft portion, and an external force transmission mechanism that transmits the rotational force to the shaft portion when an external rotational force is applied to the grip portion.

5. A door handle unit that is attached to the door surface, It comprises knobs provided on the open side and the non-open side, a sensing unit that detects a person on at least one of the open side and the non-open side, and a knob drive device that moves at least the knob on the other side in response to the detection by the sensing unit. A door knob unit characterized in that the sensing unit that detects a person on one side is a sensor that detects the distance to the person, and changes the movement of the knob on the other side according to the distance.

6. A door handle unit that is attached to the door surface, It comprises knobs provided on the open side and the non-open side, a sensing unit that detects a person on at least one of the open side and the non-open side, and a knob drive device that moves at least the knob on the other side in response to the detection by the sensing unit. A door knob unit characterized in that the sensing unit that detects a person on one side is a sensor that detects the speed of movement relative to the person, and the movement of the knob on the other side is changed according to the speed of movement.

7. A building fixture device characterized by comprising a door knob unit according to any one of claims 1 to 6.

8. The system is characterized by comprising a solar power generation device that supplies power to the knob drive device. The joinery device described in 7.

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