JP2021069917A - cabinet - Google Patents

Abstract

To provide a cabinet capable of suppressing unintentional opening of a drawer while facilitating opening operation of the drawer.SOLUTION: A cabinet 10 comprises: a fixing frame body 14 having an internal space; a drawer 16 movably disposed in the fixing frame body between a storage position of being stored in the internal space, and a drawing position of moving forward from the storage position, and having a storage space with an upper side opened; a human body detection sensor 18 for detecting a human body; an opening device 60 disposed in the internal space and moving the drawer from the storage position to the drawing position; and a control part 62 performing opening control of moving the drawer from the storage position to the drawing position by operating the opening device on the basis of a detection result of the human body detection sensor. The control part detects predetermined operation on the basis of a detection result of the human body detection sensor, and performs opening control when an elapsed time from the start to the end of the predetermined operation is in a predetermined range.SELECTED DRAWING: Figure 4

Description

The present invention relates to a cabinet.

Drawer-type cabinets provided in kitchen cabinets and vanities have a relatively large width of drawers, and it may be difficult to open the drawers depending on the weight of stored items. For example, there is known a push-open type drawer cabinet in which a user can open a drawer by pushing the drawer door (for example, Patent Document 1). Push-open drawer cabinets can facilitate drawer opening operations as compared to manual drawer cabinets.

However, in the push-open type drawer cabinet, it is necessary to apply a pressing operation in order to open the drawer, which is not always excellent in usability. Therefore, it is being studied to make it possible to open the drawer by detecting the user. For example, a human body detection sensor such as a touch switch that reacts by touching the drawer or a touchless switch that detects the movement of holding the hand over the drawer is provided on the drawer door so that the drawer can be opened without the need for pressing operation. Is being considered.

On the other hand, when the human body detection sensor is provided on the drawer door, the drawer is located below the work space, so the user unintentionally detects it by the human body detection sensor, and the drawer opens. It may end up. Therefore, in the cabinet, it is desired to facilitate the opening work of the drawer and to suppress the unintended opening of the drawer.

JP-A-2007-252491

The present invention has been made based on the recognition of such a problem, and an object of the present invention is to provide a cabinet capable of suppressing unintentional opening of drawers while facilitating opening work of drawers.

According to the first invention, the fixed frame is between a fixed frame having an internal space, a storage position of the fixed frame body stored in the internal space, and a drawer position moved forward from the storage position. A drawer that is movably provided on the body and has a storage space that opens upward, a human body detection sensor for detecting the human body, and the drawer that is provided in the internal space of the fixed frame and from the storage position. Control to perform opening control to move the drawer from the storage position to the drawer position by operating the opening device for moving the drawer to a position and the opening device based on the detection result of the human body detection sensor. When the control unit detects a predetermined operation based on the detection result of the human body detection sensor and the elapsed time from the start to the end of the predetermined operation is within a predetermined range. In addition, it is a cabinet characterized by performing the opening control.

According to this cabinet, the control unit operates the opening device based on the detection result of the human body detection sensor to perform opening control for moving the drawer from the storage position to the drawer position. This makes it possible to facilitate the opening work of the drawer. Then, the control unit detects a predetermined operation based on the detection result of the human body detection sensor, and performs open control when the elapsed time from the start to the end of the predetermined operation is within the predetermined range. Therefore, it is possible to suppress the opening of the drawer due to the detection of the unintended human body detection sensor. Therefore, it is possible to provide a cabinet that can suppress the unintended opening of the drawer while facilitating the opening work of the drawer. By suppressing the opening of unintended drawers, it is possible to improve the usability of the user.

A second invention is a cabinet according to the first invention, wherein the control unit performs the opening control when the elapsed time is equal to or less than an upper limit value.

According to this cabinet, it is possible to prevent the drawer from being unintentionally opened when a situation occurs in which a part of the user's body is unintentionally detected by the human body detection sensor for a long time. it can. Therefore, unintentional opening of the drawer can be suppressed more reliably. It is possible to prevent the drawer from being unintentionally opened and causing discomfort to the user.

In the third invention, in the second invention, when the elapsed time exceeds the upper limit value, the control unit stops the detection by the human body detection sensor for a predetermined time from the end of the predetermined operation. It is a cabinet characterized by that.

According to this cabinet, it is possible to more reliably prevent the drawer from being unintentionally opened when leaning against the front surface of the drawer and working for a long time. It is possible to more reliably prevent the drawer from being unintentionally opened and causing discomfort to the user.

A fourth invention is a cabinet according to any one of the first to third aspects, wherein the control unit performs the opening control when the elapsed time is equal to or greater than a lower limit value.

According to this cabinet, it is possible to prevent the drawer from being unintentionally opened when a part of the user's body is unintentionally detected by the human body detection sensor. .. Therefore, unintentional opening of the drawer can be suppressed more reliably. It is possible to prevent the drawer from being unintentionally opened and causing discomfort to the user.

A fifth aspect of the invention is a cabinet according to any one of the first to fourth aspects, further comprising a workbench having a work space, wherein the fixed frame is provided below the workbench. is there.

According to this cabinet, even if a fixed frame and a drawer are provided under the work table having a work space, a part of the user's body or the like is unintentionally detected by the human body detection sensor during work and is intended. It is possible to prevent the drawer from opening.

According to an aspect of the present invention, there is provided a cabinet capable of suppressing unintended opening of drawers while facilitating opening work of drawers.

It is a front view which shows typically the system kitchen which concerns on 1st Embodiment. It is a perspective view which shows a part of the cabinet which concerns on 1st Embodiment schematically. It is sectional drawing which shows a part of the cabinet which concerns on 1st Embodiment schematically. It is sectional drawing which shows a part of the cabinet which concerns on 1st Embodiment schematically. 5 (a) and 5 (b) are explanatory views schematically showing the pull-in mechanism according to the first embodiment. It is a flowchart which shows an example of the operation of the control part which concerns on 1st Embodiment schematically. 7 (a) to 7 (e) are graphs schematically showing an example of the operation of the control unit according to the first embodiment. It is a front view which shows typically the system kitchen which concerns on 2nd Embodiment. It is sectional drawing which shows the part of the cabinet which concerns on 2nd Embodiment schematically. It is a flowchart which shows an example of the operation of the control part which concerns on 2nd Embodiment schematically. 11 (a) to 11 (c) are graphs schematically showing a modified example of the operation of the control unit according to the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as much as possible in each drawing, and duplicate description is omitted.

FIG. 1 is a front view schematically showing the system kitchen according to the first embodiment.
As shown in FIG. 1, the system kitchen 2 includes a faucet device 4 and a cabinet 10. The cabinet 10 includes a work table 12, a fixed frame body 14, a drawer 16, and a touch switch 18.

The workbench 12 has a work space WS. In the system kitchen 2, the work space WS is a space for cooking, washing dishes, and the like. The work table 12 has, for example, a sink 12a, a stove table for installing a stove (not shown), and the like. The workbench 12 is, in other words, a kitchen counter.

The faucet device 4 is provided on the work table 12 so as to be located near the sink 12a or in the sink 12a, for example. The faucet device 4 discharges water toward the sink 12a. The sink 12a has a concave shape that is recessed downward from the upper surface of the work table 12, and receives water discharged from the faucet device 4. Further, the sink 12a has a drain port, receives the water discharged from the faucet device 4, and discharges the received water to an external drain pipe or the like through the drain port.

The fixed frame body 14 is provided below the work table 12. The fixed frame body 14 supports, for example, the work table 12. As described above, in this example, the cabinet 10 is a cabinet integrally provided in the system kitchen 2. The cabinet 10 may be provided, for example, below the work table of the system kitchen 2 and separately from the work table. The cabinet 10 does not necessarily have to include the work table 12.

The fixed frame body 14 supports the drawer 16 so that it can be pulled out. The cabinet 10 includes, for example, a plurality of drawers 16. The fixed frame body 14 supports a plurality of drawers 16 so that they can be pulled out. In this example, six drawers 16 are shown. The number of drawers 16 is not limited to 6, and may be 1 to 5, or 7 or more. The number of drawers 16 provided in the cabinet 10 may be any number.

The touch switch 18 detects a touch operation on the drawer 16. The cabinet 10 has a plurality of touch switches 18 corresponding to each of the plurality of drawers 16. The number of touch switches 18 is, for example, the same as the number of drawers 16. The touch switch 18 may be provided only in the specific drawer 16.

The cabinet 10 detects a touch operation on the drawer 16 with the touch switch 18, and automatically opens the drawer 16 in response to the detection of the touch operation. As a result, it is not necessary to apply a strong force to pull the drawer 16 like a manual drawer or to push the drawer 16 to apply a strong force like a push-open type drawer, and the drawer 16 can be opened. Can be facilitated.

FIG. 2 is a perspective view schematically showing a part of the cabinet according to the first embodiment.
3 and 4 are cross-sectional views schematically showing a part of the cabinet according to the first embodiment.
As shown in FIGS. 2 to 4, the fixed frame body 14 has a bottom plate 21, a back plate 22, two side plates 23, and a reinforcing member 24. As a result, the fixed frame body 14 has an internal space IS surrounded by a work table 12, a bottom plate 21, a back plate 22, and two side plates 23. In other words, the fixed frame body 14 has an opening box shape with a front opening. The reinforcing member 24 extends in the left-right direction and reinforces the opening side of the fixed frame body 14 by connecting the upper front ends of the two side plates 23 to each other. In FIG. 2, the fixed frame body 14 in a state where the work table 12 and the drawer 16 are omitted is shown for convenience.

Hereinafter, in the present specification, the direction in which the opening of the fixed frame body 14 faces is referred to as “forward”. In other words, the front is the direction in which the drawer 16 is pulled out. The "rear", "upper", "lower", "right side", and "left side" are the respective directions based on the state of facing forward.

The fixed frame body 14 stores the drawer 16 in the internal space IS. The fixed frame body 14, for example, accommodates a plurality of drawers 16 in the internal space IS. The side plates 23 are provided, for example, according to the number of drawers 16 arranged in the left-right direction. The side plates 23 are provided so as to be located on both sides of the drawer 16. Therefore, when three drawers 16 are arranged in the left-right direction as in this example, six side plates 23 corresponding to each drawer 16 are provided on the fixed frame body 14.

For example, when the cabinet 10 does not have the work table 12, the fixed frame body 14 may further have a top plate, and the upper part of the internal space IS may be covered with the top plate. Further, for example, when the cabinet 10 is installed in contact with the wall surface of the building, the back plate 22 or the like may be omitted. The reinforcing member 24 is provided as needed and can be omitted. As described above, the configuration of the fixed frame body 14 is not limited to the above, and may be any configuration in which the drawer 16 can be stored in the internal space IS.

The drawer 16 has a storage space SS that is open upward. The drawer 16 has a door 31, a back plate 32, a bottom plate 33, and two side plates 34. The storage space SS is a space surrounded by a door 31, a back plate 32, a bottom plate 33, and two side plates 34. In other words, the drawer 16 has an opening box shape with an upper opening.

The configuration of the plurality of drawers 16 is substantially the same. However, the height in the vertical direction, the width in the horizontal direction, and the like may be changed in each of the plurality of drawers 16. For example, when the cabinet 10 is horizontally long, the number of drawers 16 may be changed between the upper side and the lower side.

The drawer 16 is movably provided in the fixed frame body 14 between the storage position stored in the internal space IS of the fixed frame body 14 and the drawer position moved forward (pulled out) from the storage position. ing. The storage position is, for example, the position of the drawer 16 shown in FIG. The drawer position is, for example, the position of the drawer 16 shown on the lower side of FIG. The drawer 16 on the upper side of FIG. 4 schematically represents a state in which the drawer 16 is being moved to a position between the storage position and the drawer position.

The fixed frame body 14 further includes a slide rail 25 and a pull-in mechanism 26. The slide rail 25 is provided on the inner surface of the side plate 23. One slide rail 25 is provided on each of the left and right sides of the drawer 16. The fixed frame 14 has two slide rails 25 for one drawer 16. The slide rail 25 guides the movement of the drawer 16 in the front-rear direction, reduces the friction generated between the fixed frame body 14 and the drawer 16, and makes the movement of the drawer 16 between the storage position and the drawer position smooth. To do.

The pull-in mechanism 26 is provided on the inner surface of the side plate 23. One pull-in mechanism 26 is provided on each of the left and right sides of the drawer 16. The fixed frame body 14 has two pull-in mechanisms 26 for one drawer 16.

The pull-in mechanism 26 applies a pulling force to the drawer 16 toward the storage position until the drawer 16 moves to a predetermined position between the storage position and the drawer position. The drawer 16 automatically moves to the storage position by the pulling force of the pulling mechanism 26 from the storage position to the predetermined position. As a result, the drawer 16 can be moved to the storage position with a relatively light force, and it is possible to prevent the drawer 16 from being held in a slightly open state, thereby further improving the usability of the cabinet 10. it can.

5 (a) and 5 (b) are explanatory views schematically showing the pull-in mechanism according to the first embodiment.
As shown in FIGS. 5A and 5B, the pull-in mechanism 26 includes a rail member 40, a movable member 42, a spring 44, and a drive pin 46.

The rail member 40 has a plate shape having a through-hole-shaped rail 50. The rail member 40 is attached to, for example, the inner surface of the side plate 23 of the fixed frame body 14. The rail 50 has a straight portion 50a extending in the front-rear direction and a curved portion 50b provided at the front end of the straight portion 50a and curved downward in an arc shape.

The movable member 42 has a substantially rectangular plate shape, is attached to the rail 50 via the shaft portions 52 and 53, and moves in the front-rear direction along the rail 50. A groove 56 that opens upward is provided on the upper portion of the movable member 42. An inclined portion 56a inclined to the front side is provided near the upper end of the groove portion 56 on the front side so that the width increases toward the upper side.

The spring 44 is a so-called coil spring. One end 44a of the spring 44 is connected to the movable member 42. On the other hand, the other end 44b of the spring 44 is connected to the rail member 40. The other end 44b of the spring 44 may be connected to, for example, the fixed frame body 14.

The spring 44 applies an urging force toward the rear side to the movable member 42. When the movable member 42 is located within the range of the straight portion 50a of the rail 50, the spring 44 holds the movable member 42 at the position at the rear end of the straight portion 50a (the position shown in FIG. 5A). More specifically, the spring 44 holds the movable member 42 at a position where the shaft portion 53 abuts on the rear end of the straight portion 50a by the urging force.

The drive pin 46 has, for example, a substantially round bar shape extending in the left-right direction (direction orthogonal to the paper surface in FIG. 5). One end of the drive pin 46 is engaged with the groove 56 of the movable member 42. On the other hand, the other end of the drive pin 46 is connected to the drawer 16. As a result, the drive pin 46 and the movable member 42 move in the front-rear direction in accordance with the drawer 16.

When the movable member 42 is located within the range of the straight portion 50a of the rail 50, the urging force of the spring 44 is applied to the drawer 16 via the movable member 42 and the drive pin 46. As a result, as described above, the drawer 16 moves to the storage position until the drawer 16 moves to the predetermined position. In other words, FIG. 5A shows a state in which the drawer 16 is in the storage position.

As shown in FIG. 5B, when the movable member 42 moves to the position of the curved portion 50b of the rail 50, the movable member 42 tilts forward along the curvature of the curved portion 50b. In this state, when the drawer 16 and the drive pin 46 move further forward, the drive pin 46 comes out of the groove 56 of the movable member 42. As a result, as described above, when the drawer 16 moves to a predetermined position, the pulling force applied to the drawer 16 is released. In other words, FIG. 5B shows a state in which the drawer 16 is in a predetermined position between the storage position and the drawer position.

Further, the movable member 42 at the position of the curved portion 50b stays at the position of the curved portion 50b against the urging force of the spring 44 by engaging the shaft portion 52 with the front end portion of the curved portion 50b. Then, when the drawer 16 and the drive pin 46 return from the drawer position to a predetermined position, the drive pin 46 and the groove portion 56 are engaged again.

As a result, as described above, the drawer 16 is provided with a pulling force in the direction toward the storage position by the pulling mechanism 26 until the drawer 16 moves from the storage position to the predetermined position. When the drawer 16 moves to a predetermined position, the pulling force in the direction toward the storage position is released by the pulling mechanism 26, and the drawer 16 is pulled out by the inertial force of the drawer 16 (the weight of the drawer 16). Move to position.

The structure of the pull-in mechanism 26 is not limited to the above, and may be any structure capable of imparting the pull-in force to the drawer 16 and releasing the pull-in force as described above. Further, the pull-in mechanism 26 and the slide rail 25 are not limited to a separate configuration but may be an integrated configuration.

As shown in FIGS. 2 to 4, the cabinet 10 includes an opening device 60. The opening device 60 is provided in the internal space IS of the fixed frame body 14. The opening device 60 is provided, for example, on the front surface of the back plate 22. The opening device 60 is a device for moving the drawer 16 from the storage position to the drawer position. The cabinet 10 includes, for example, a plurality of opening devices 60 corresponding to each of the plurality of drawers 16. The opening device 60 may be commonly used for, for example, a pair of drawers 16 arranged vertically or horizontally.

The opening device 60 is, for example, a device that pushes the drawer 16 forward against the urging force of the pulling mechanism 26 with respect to the pulling mechanism 26 that tries to pull the drawer 16 backward in the vicinity of the storage position of the drawer 16.

The opening device 60 pushes the drawer 16 from the storage position to a predetermined position (the position shown in FIG. 5B) where the pulling force is released, for example, when the drawer 16 is in the storage position. As a result, after the drawer 16 is pushed out by the opening device 60, the drawer 16 can be moved to the drawer position by the inertial force of the drawer 16.

The opening device 60 includes, for example, a housing 60a and an arm 60b rotatably supported by the housing 60a. The opening device 60 pushes the drawer 16 forward by rotating the arm 60b and pressing the back plate 32 and the like of the drawer 16 toward the front.

The opening device 60 may be, for example, an electric opening / closing mechanism that moves the drawer 16 between the storage position and the drawer position by the driving force of the motor or the like. However, the configuration of the opening device 60 is not limited to these, and any configuration capable of moving the drawer 16 from the storage position to the drawer position may be used.

A power supply unit 80 is provided on the front surface of the back plate 22 of the fixed frame body 14. The power supply unit 80 can be connected to a commercial power source and converts the AC power of the commercial power source into DC power.

The opening device 60 is connected to the power supply unit 80 by a power supply line 81, and receives power from the power supply unit 80 through the power supply line 81. The opening device 60 operates based on the electric power supplied from the power supply unit 80.

As shown in FIGS. 3 and 4, the cabinet 10 includes a control unit 62. The control unit 62 operates the opening device 60 based on the detection result of the touch switch 18 to perform opening control for moving the drawer 16 from the storage position to the drawer position. The control unit 62 is provided, for example, on the side plate 23 of the fixed frame body 14.

The touch switch 18 has, for example, a detection unit 71 and a contact 72. The detection unit 71 is provided, for example, on the back surface of the door 31 of the drawer 16. The contact 72 is provided on the fixed frame body 14 and is electrically connected to the detection unit 71 by coming into contact with the detection unit 71 in a state where the drawer 16 is in the storage position.

The touch switch 18 is, for example, an electrostatic sensor that changes the capacitance by bringing a fingertip or the like from the front side of the door 31 close to the detection unit 71 via the door 31. That is, the touch switch 18 detects the human body on the front side of the door 31, and constitutes the human body detection sensor according to the aspect of the present invention. In other words, the detection unit 71 is a detection electrode for detecting a change in capacitance. The contact 72 is connected to the control unit 62 via a signal line 73. As a result, the touch switch 18 inputs the control signal corresponding to the change in capacitance to the control unit 62 as the detection result of the touch operation.

The detection unit 71 is arranged near the upper end of the back surface of the door 31, for example. Further, the detection unit 71 extends in the left-right direction so as to correspond to the width of the drawer 16 (see FIG. 1). By providing the detection unit 71 on the back side of the door 31, it is possible to prevent the detection unit 71 from being exposed to the outside and spoiling the appearance of the cabinet 10. It is possible to provide a cabinet 10 having a higher design. Further, by arranging the detection unit 71 near the upper end of the back surface of the door 31 and making the shape long to the left and right, it is possible to detect a touch operation at an arbitrary position near the upper end of the door 31.

The detection unit 71 may extend from the back surface of the door 31 to the upper surface of the door 31 by bending it into an L shape, for example, so that a touch operation on the upper surface of the door 31 can be detected. Further, the detection unit 71 may be exposed to the front surface side of the door 31, for example, by further bending the portion extending on the upper surface of the door 31 downward. The detection unit 71 is bent into a substantially U shape to be exposed on the front side of the door 31, and the detection unit 71 is directly touch-operated. Thereby, for example, it is possible to make it easier to detect the change in capacitance and to make it easier for the user or the like to recognize the position where the touch operation is performed. Further, for example, by exposing the detection unit 71 to the front side of the door 31, the detection unit 71 may be used as a handle when the drawer 16 is manually opened and closed.

For example, when the door 31 is made of metal, the door 31 may be used as a detection unit of the touch switch 18. The touch switch 18 is not limited to the capacitance type, and may be provided with a detection unit capable of detecting a touch operation.

The control unit 62 is connected to the opening device 60 via the wiring 75. The control unit 62 inputs a control signal to the opening device 60 via the wiring 75. As a result, the opening device 60 can be operated based on the detection result of the touch switch 18.

The wiring 75 serves as, for example, a power supply line and a signal line. The control unit 62 receives power from the power supply unit 80 through the power supply line 81, the opening device 60, and the wiring 75. As a result, the control unit 62 operates based on the electric power supplied from the power supply unit 80. The control unit 62 may receive power directly from the power supply unit 80 without passing through the opening device 60, or may receive power supply from a power supply unit different from the power supply unit 80.

The contact 72 is provided on the fixed frame 14 which is an element on the fixed side, while the detection unit 71 is provided on the door 31 of the drawer 16 which is an element on the movable side. Therefore, in conjunction with the opening and closing of the drawer 16, the detection unit 71 and the contact 72 are connected to or separated from each other.

Only when the drawer 16 shown in FIG. 3 is closed, the detection unit 71 and the contact 72 are connected to each other, and the detection result of the touch switch 18 can be input to the control unit 62. In this state, when a user or the like touches the vicinity of the detection unit 71, the detection result of the touch switch 18 input to the control unit 62 changes.

The control unit 62 inputs a control signal to the release device 60 based on the change in the detection result of the touch switch 18. Upon receiving this control signal, the opening device 60 is activated. That is, the opening device 60 is operated, and the drawer 16 is pushed out to a position where the pulling force is released.

As shown in FIG. 4, in the open state in which the drawer 16 is moved forward from the fixed frame body 14, the detection unit 71 provided in the drawer 16 is separated from the contact 72 provided in the fixed frame body 14. In this state, even if a user or the like touches the vicinity of the detection unit 71, the detection result of the touch switch 18 input to the control unit 62 does not change, and the release device 60 does not start.

Therefore, even if a user or the like unintentionally touches the vicinity of the detection unit 71 at the time of opening the drawer, which does not require the opening device 60 to be activated, it is possible to prevent the opening device 60 from being activated. Suppressing such useless operation of the opening device 60 reduces the load applied to the opening device 60 and improves the durability. In addition, wasteful power consumption can be suppressed.

Further, when the user or the like closes the drawer 16 from the open state, the operated opening device 60 and the back plate 32 of the drawer 16 interfere with each other, and it is possible to prevent the opening device 60 and the drawer 16 from being damaged. This also improves the durability of the opening device 60. As described above, according to the first embodiment, the unintentional activation of the opening device 60 at the time of opening the drawer can be suppressed, and the usability can be improved.

Further, according to the first embodiment, since the signal transmission between the detection unit 71 and the control unit 62 is turned ON / OFF in conjunction with the opening / closing of the drawer 16, the open / closed state of the drawer 16 is detected. It is not necessary to separately provide an open / close state detection sensor or the like, and an unintended activation of the opening device 60 at the time of opening the drawer can be suppressed with a simple configuration, and the usability can be improved.

The power supply unit 80 is provided in the rear space of the drawer 16, which is generally a dead space in the cabinet 10. A wiring connection is made from the power supply unit 80 to the contact 72 provided on the front side of the cabinet 10. It is not necessary to directly wire from the detection unit 71 provided on the door 31 of the drawer 16 to the back side of the drawer. The wiring is on the fixed side, and even if the drawer 16 is opened, it does not stand out, so it does not spoil the aesthetic appearance. There is no need for work such as embedding the wiring so that it cannot be seen and does not come into contact with other parts. A part of the door 31 can be used as the detection unit 71, or the door 31 itself can be used as the detection unit, and the degree of freedom in design is high and the design is excellent.

FIG. 6 is a flowchart schematically showing an example of the operation of the control unit according to the first embodiment.
7 (a) to 7 (e) are graphs schematically showing an example of the operation of the control unit according to the first embodiment.
7 (a) to 7 (e) schematically show an example of a control signal (detection result) input from the touch switch 18 to the control unit 62. As shown in FIGS. 7A to 7E, for example, the touch switch 18 is in the form of a pulse signal that becomes Lo when the touch operation is not performed and becomes Hi when the touch operation is performed. A control signal is input to the control unit 62. When the touch operation is performed, in other words, the detected value of the capacitance exceeds a predetermined threshold value. The control signal input from the touch switch 18 to the control unit 62 is not limited to this, and may be any signal capable of detecting the presence or absence of a touch operation.

The control unit 62 detects a predetermined operation based on the detection result of the touch switch 18. As shown in FIGS. 7 (a) to 7 (e), the control unit 62 detects, for example, from the start to the end of one touch operation as a predetermined operation.

The control unit 62 starts time counting when the user or the like starts a touch operation and the control signal input from the touch switch 18 switches from Lo to Hi (step S1 in FIG. 6). The time may be measured in the control unit 62 using an internal clock or the like, or may be performed in an external timer circuit or the like.

The control unit 62 stops time counting when the user or the like finishes the touch operation and the control signal input from the touch switch 18 is switched from Hi to Lo. As a result, the control unit 62 detects the elapsed time T from the start to the end of the predetermined operation. In this example, the control unit 62 detects the elapsed time T from the start to the end of one touch operation (step S2 in FIG. 6).

After detecting the elapsed time T, the control unit 62 determines whether or not the elapsed time T is within a predetermined range (step S3 in FIG. 6). The control unit 62 determines, for example, whether or not the elapsed time T is equal to or greater than the lower limit value T1 and determines whether or not the elapsed time T is equal to or less than the upper limit value T2.

As shown in FIG. 7A, the control unit 62 determines that the elapsed time T is within a predetermined range when the elapsed time T is equal to or greater than the lower limit value T1 and equal to or less than the upper limit value T2. The lower limit value T1 is, for example, about 0.5 seconds. The upper limit value T2 is, for example, about 1 second.

When the control unit 62 determines that the elapsed time T is within a predetermined range, the control unit 62 performs opening control for moving the drawer 16 from the storage position to the drawer position (step S4 in FIG. 6). That is, the control unit 62 inputs the control signal to the opening device 60 to activate the opening device 60, and pushes the drawer 16 to a position where the pulling force of the pulling mechanism 26 is released to move the drawer 16 to the pulling position. Let me.

On the other hand, in the control unit 62, when the elapsed time T is shorter than the lower limit value T1 as shown in FIG. 7B, and when the elapsed time T is shorter than the upper limit value T2 as shown in FIG. 7C. If it is also long, it is determined that the elapsed time T is out of the predetermined range.

When the control unit 62 determines that the elapsed time T is out of the predetermined range, the control unit 62 subsequently determines whether or not the elapsed time T exceeds the upper limit value T2 (step S5 in FIG. 6).

When the control unit 62 determines that the elapsed time T exceeds the upper limit value T2, the control unit 62 detects the elapsed time t from the end of the previous touch operation by starting time counting (step S6 in FIG. 6).

The control unit 62 detects the elapsed time t and determines whether or not the elapsed time t is the predetermined time T3 or more (step S7 in FIG. 6). The control unit 62 locks the execution of the next release control until the predetermined time T3 elapses. That is, when the elapsed time T exceeds the upper limit value T2, the control unit 62 stops the detection of the touch operation by the touch switch 18 from the end of the predetermined operation to the predetermined time T3.

As shown in FIG. 7D, the control unit 62 accepts the next touch operation when the elapsed time t from the end of the previous touch operation becomes the predetermined time T3 or more. On the other hand, as shown in FIG. 7E, the control unit 62 does not accept the next touch operation when the elapsed time t from the end of the previous touch operation is less than the predetermined time T3. As a result, the control unit 62 stops the detection of the touch operation by the touch switch 18 for a predetermined time T3 from the end of the predetermined operation.

For example, the control unit 62 does not execute the release control even when a control signal for detecting a touch operation is input from the touch switch 18 until the predetermined time T3 elapses. Stop detecting the operation. However, the method of stopping the detection of the touch operation is not limited to this. For example, the detection of the touch operation may be stopped by providing a switching element on the path of the wiring 75 or the like so that the control signal is not input from the touch switch 18 to the control unit 62. Alternatively, the detection of the touch operation may be stopped by stopping the power supply to the touch switch 18.

When the control unit 62 executes the open control in step S4, determines in step S5 that the elapsed time T does not exceed the upper limit value T2 (when the elapsed time T is less than the lower limit value T1), and step. If it is determined in S7 that the elapsed time t is equal to or longer than the predetermined time T3, the process returns to step S1 and the next touch operation is accepted.

As described above, when the control unit 62 determines in step S5 that the elapsed time T does not exceed the upper limit value T2, and when it determines in step S7 that the elapsed time t is equal to or longer than the predetermined time T3, Even if a touch operation is performed, the release control is not performed. The control unit 62 controls the opening of the drawer 16 only when the elapsed time T from the start to the end of the predetermined operation is within the predetermined range.

As described above, in the cabinet 10 according to the first embodiment, the control unit 62 moves the drawer 16 from the storage position to the drawer position by operating the opening device 60 based on the detection result of the touch switch 18. Perform open control. This makes it possible to facilitate the opening work of the drawer 16. Then, the control unit 62 detects a predetermined operation based on the detection result of the touch switch 18, and when the elapsed time T from the start to the end of the predetermined operation is within the predetermined range, the opening control is performed. By doing so, it is possible to suppress the opening of the drawer 16 due to an unintended touch operation. Therefore, it is possible to provide a cabinet 10 capable of suppressing unintended opening of the drawer 16 while facilitating the opening work of the drawer 16. By suppressing the unintentional opening of the drawer 16, the usability of the user can be improved.

Further, in the cabinet 10, the control unit 62 performs opening control when the elapsed time T is equal to or less than the upper limit value T2. As a result, it is possible to prevent the drawer 16 from being unintentionally opened when a situation occurs in which a part of the user's body or the like continues to hit the touch switch 18 for a long time unintentionally. Therefore, the unintended opening of the drawer 16 can be suppressed more reliably. It is possible to prevent the drawer 16 from being unintentionally opened and causing discomfort to the user.

Further, in the cabinet 10, when the elapsed time T exceeds the upper limit value T2, the control unit 62 stops the detection of the touch operation by the touch switch 18 from the end of the predetermined operation to the predetermined time T3. As a result, it is possible to more reliably prevent the drawer 16 from being unintentionally opened when the drawer 16 leans against the front surface and works for a long time. It is possible to more reliably prevent the drawer 16 from being unintentionally opened and causing discomfort to the user.

Further, in the cabinet 10, the control unit 62 performs open control when the elapsed time T is equal to or greater than the lower limit value T1. As a result, it is possible to prevent the drawer 16 from being unintentionally opened when a part of the user's body or the like momentarily hits the touch switch 18. Therefore, the unintended opening of the drawer 16 can be suppressed more reliably. It is possible to prevent the drawer 16 from being unintentionally opened and causing discomfort to the user.

In this example, the range in which the elapsed time T is equal to or greater than the lower limit value T1 and equal to or less than the upper limit value T2 is within the predetermined range. The predetermined range is not limited to this, and for example, the entire range of the lower limit value T1 or more may be within the predetermined range, or the entire range of the upper limit value T2 or less may be within the predetermined range.

Further, in the cabinet 10, even if the fixed frame body 14 and the drawer 16 are provided below the work table 12 having the work space WS, a part of the user's body or the like unintentionally hits the touch switch 18 during the work. It is possible to prevent the drawer 16 from being unintentionally opened.

Next, FIGS. 8 to 10 show a second embodiment according to the aspect of the present invention. The feature of the second embodiment is that the human body detection sensor is a radio wave sensor, and the drawer 16 can be opened by holding a hand without touching the drawer 16. In the second embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 8 is a front view schematically showing the system kitchen according to the second embodiment.
FIG. 9 is a cross-sectional view schematically showing a part of the cabinet according to the second embodiment.
As shown in FIGS. 8 and 9, the radio wave sensor 90 is arranged on the fixed frame 14 near the upper end of the back surface of the door 31. The radio wave sensor 90 is provided on the reinforcing member 24 at the center of each drawer 16 in the width direction (left-right direction), for example. The radio wave sensor 90 constitutes a human body detection sensor according to the aspect of the present invention.

As shown in FIG. 9, the radio wave sensor 90 has a transmission / reception unit 91 that transmits and receives microwaves M. The transmission / reception unit 91 transmits the microwave M toward the hand held up toward the front of the door 31, and receives the microwave M reflected by the hand. That is, the radio wave sensor 90 detects the human body (hand) held in front of the door 31.

The radio wave sensor 90 is connected to the control unit 62 by a signal line 73, and transmits a control signal to the control unit 62. As a result, the control unit 62 can determine the approach and separation of the hand to the door 31 and the distance between the radio wave sensor 90 and the door 31.

Further, the radio wave sensor 90 may detect (ON) the body when the drawer 16 is closed and may not detect (OFF) the body when the drawer 16 is open. For example, the signal line 73 may be provided with a switch that energizes (ON) the radio wave sensor 90 when the drawer 16 is closed and de-energizes (OFF) the radio wave sensor 90 when the drawer 16 is open. .. That is, the hand (body) may be detected only when the drawer 16 is closed. This makes it possible to prevent the opening device 60 from operating when the drawer 16 is open.

FIG. 10 is a flowchart schematically showing an example of the operation of the control unit according to the second embodiment.
The control unit 62 starts a hand-held operation by a user or the like, and starts time counting by a control signal input from the radio wave sensor 90 (step S11 in FIG. 10).

In this case, for example, the distance threshold value from the door 31 is stored in advance in the control unit 62. The control unit 62 starts time counting when the distance from the door 31 to the hand calculated by the transmitted wave and the received wave from the radio wave sensor 90 is equal to or less than the distance threshold value. The time may be measured in the control unit 62 using an internal clock or the like, or may be performed in an external timer circuit or the like. The distance threshold value is not limited to the distance from the door 31, but may be, for example, the distance from the radio wave sensor 90, and can be set at an arbitrary position.

The control unit 62 stops time counting when the user or the like finishes the hand-holding operation and the distance from the door 31 to the hand is greater than the distance threshold value. As a result, the control unit 62 detects the elapsed time T from the start to the end of the predetermined operation. In this example, the control unit 62 detects the elapsed time T from the start to the end of one hand holding operation (step S12 in FIG. 10).

S3 to S7 of the flowchart shown in FIG. 10 are subjected to the same control processing as S3 to S7 of the flowchart shown in FIG. In S3 to S7 of FIG. 10, the touch operation in the description of the flowchart of FIG. 6 described above is a hand-holding operation.

Thus, according to the cabinet according to the second embodiment, the control unit 62 operates the opening device 60 based on the detection result of the radio wave sensor 90 to perform opening control for moving the drawer 16 from the storage position to the drawer position. Do. This makes it possible to facilitate the opening work of the drawer 16. Then, the control unit 62 detects a predetermined operation based on the detection result of the radio wave sensor 90, and when the elapsed time T from the start to the end of the predetermined operation is within the predetermined range, the opening control is performed. By doing so, it is possible to suppress the opening of the drawer 16 due to an unintended hand holding operation. Therefore, it is possible to provide a cabinet 10 capable of suppressing unintended opening of the drawer 16 while facilitating the opening work of the drawer 16. By suppressing the unintentional opening of the drawer 16, the usability of the user can be improved.

Further, in the cabinet 10, the control unit 62 performs opening control when the elapsed time T is equal to or less than the upper limit value T2. As a result, the drawer 16 is unintentionally opened when a part of the user's body or the like unintentionally continues to enter the detection area of the hand-held operation by the radio wave sensor 90 for a long time. Can be suppressed. Therefore, the unintended opening of the drawer 16 can be suppressed more reliably. It is possible to prevent the drawer 16 from being unintentionally opened and causing discomfort to the user.

Further, in the cabinet 10, when the elapsed time T exceeds the upper limit value T2, the control unit 62 stops the detection of the hand holding operation by the radio wave sensor 90 from the end of the predetermined operation to the predetermined time T3. As a result, it is possible to more reliably prevent the drawer 16 from being unintentionally opened when the drawer 16 leans against the front surface and works for a long time. It is possible to more reliably prevent the drawer 16 from being unintentionally opened and causing discomfort to the user.

Further, in the cabinet 10, the control unit 62 performs open control when the elapsed time T is equal to or greater than the lower limit value T1. As a result, it is possible to prevent the drawer 16 from being unintentionally opened when a part of the user's body or the like momentarily enters the detection area. Therefore, the unintended opening of the drawer 16 can be suppressed more reliably. It is possible to prevent the drawer 16 from being unintentionally opened and causing discomfort to the user.

In this example, the range in which the elapsed time T is the lower limit value T1 or more and the upper limit value T2 or less is set within the predetermined range. The predetermined range is not limited to this, and for example, the entire range of the lower limit value T1 or more may be within the predetermined range, or the entire range of the upper limit value T2 or less may be within the predetermined range.

Further, in the cabinet 10, even if the fixed frame body 14 and the drawer 16 are provided below the work table 12 having the work space WS, a part of the user's body or the like is unintentionally touched by the radio wave sensor 90 during the work. It is possible to prevent the drawer 16 from being unintentionally opened by entering the detection area of the holding operation.

11 (a) to 11 (c) are graphs schematically showing a modified example of the operation of the control unit according to the embodiment.
In the first embodiment, the control unit 62 detects from the start to the end of one touch operation as a predetermined operation. The predetermined operation is not limited to this.

For example, as shown in FIG. 11A, a predetermined operation may be from the start of the first touch operation to the end of the second touch operation. The control unit 62 detects the elapsed time T from the start of the first touch operation to the end of the second touch operation, and when this elapsed time T is equal to or greater than the lower limit value T1 and equal to or less than the upper limit value T2, the elapsed time It may be determined that T is within a predetermined range. This also applies to the second embodiment.

For example, as shown in FIG. 11B, the predetermined operation may be from the start of the first touch operation to the start of the second touch operation. The control unit 62 detects the elapsed time T from the start of the first touch operation to the start of the second touch operation, and when this elapsed time T is equal to or greater than the lower limit value T1 and equal to or less than the upper limit value T2, the elapsed time It may be determined that T is within a predetermined range. This also applies to the second embodiment.

For example, as shown in FIG. 11C, a predetermined operation may be performed from the end of the first touch operation to the start of the second touch operation. The control unit 62 detects the elapsed time T from the end of the first touch operation to the start of the second touch operation, and when the elapsed time T is the lower limit value T4 or more and the upper limit value T5 or less, the elapsed time It may be determined that T is within a predetermined range. This also applies to the second embodiment.

Further, in this case, in combination with the configuration of the above embodiment, if the elapsed time T from the start to the end of the first touch operation is not within the range of the lower limit value T1 or more and the upper limit value T2 or less, the opening control is performed. You may not have it. That is, the elapsed time T from the start to the end of the first touch operation is equal to or greater than the lower limit value T1 and equal to or less than the upper limit value T2, and the elapsed time from the end of the first touch operation to the start of the second touch operation. When T is equal to or greater than the lower limit value T4 and equal to or less than the upper limit value T5, the opening control may be performed. This also applies to the second embodiment.

The predetermined operation is not limited to the above, and may be, for example, an operation from the start of the first touch operation to the end of the third touch operation. The predetermined operation may be any operation that can be detected based on the detection result of the touch switch 18. This also applies to the second embodiment.

Further, in the second embodiment described above, an example in which the radio wave sensor 90 is applied as the human body detection sensor is shown. The human body detection sensor is not limited to the radio wave sensor 90, and for example, an electrostatic sensor may be applied. In this case, for example, by setting the threshold value of the capacitance determined by the control unit 62, the sensitivity (detection area) of the electrostatic sensor is increased, and the drawer 16 is pulled out by holding a hand without touching the drawer 16. Can be opened. That is, a radio wave sensor may be applied instead of the electrostatic sensor as the touch switch 18 according to the first embodiment.

In the above embodiment, an example in which the cabinet 10 is applied to the system kitchen 2 is shown. The cabinet 10 is not limited to the system kitchen 2, and may be applied to, for example, a vanity. For example, when the cabinet 10 is incorporated in a vanity, the workbench 12 is a washbasin counter on which, for example, a washbasin or a faucet device is installed. The work space WS is a space for performing various face-washing activities such as face washing and tooth brushing.

The embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. With respect to the above-described embodiment, those skilled in the art with appropriate design changes are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, dimensions, material, arrangement, and the like of each element included in the cabinet 10 and the like are not limited to those illustrated, and can be changed as appropriate.
Further, the elements included in each of the above-described embodiments can be combined as much as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

2 system kitchen, 4 faucet device, 10 cabinet, 12 workbench, 14 fixed frame, 16 drawer, 18 touch switch, 21 bottom plate, 22 back plate, 23 side plate, 24 reinforcement member, 25 slide rail, 26 pull-in mechanism, 31 Door, 32 Back plate, 33 Bottom plate, 34 Side plate, 40 Rail member, 42 Movable member, 44 Spring, 46 Drive pin, 50 Rail, 52 Shaft, 53 Shaft, 56 Groove, 60 Opening device, 62 Control 71 detector, 72 contacts, 73 signal line, 75 wiring, 80 power supply unit, 81 power supply line, 90 radio wave sensor, 91 transmitter / receiver

Claims (5)

A fixed frame with an internal space and
A storage space movably provided in the fixed frame body and opened upward between the storage position stored in the internal space of the fixed frame body and the drawer position moved forward from the storage position. With drawers and
A human body detection sensor for detecting the human body and
An opening device provided in the internal space of the fixed frame body for moving the drawer from the storage position to the drawer position.
A control unit that controls opening to move the drawer from the storage position to the drawer position by operating the opening device based on the detection result of the human body detection sensor.
With
The control unit detects a predetermined operation based on the detection result of the human body detection sensor, and when the elapsed time from the start to the end of the predetermined operation is within the predetermined range, the opening control is performed. A cabinet characterized by doing. The cabinet according to claim 1, wherein the control unit performs the opening control when the elapsed time is equal to or less than an upper limit value. The cabinet according to claim 2, wherein when the elapsed time exceeds the upper limit value, the control unit stops the detection by the human body detection sensor for a predetermined time from the end of the predetermined operation. The cabinet according to any one of claims 1 to 3, wherein the control unit performs the opening control when the elapsed time is equal to or greater than the lower limit value. Further equipped with a workbench with a work space
The cabinet according to any one of claims 1 to 4, wherein the fixed frame body is provided below the work table.

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