WO2006112264A1

WO2006112264A1 - Lifting-type storage device

Info

Publication number: WO2006112264A1
Application number: PCT/JP2006/307212
Authority: WO
Inventors: Kousaku Inoue; Tetsuji Niiyama; Takahiro Nakamura; Katsuyuki Okumura; Akihiro Nakamura; Masayuki Hashimoto; Yoshiro Matsushita; Kazuhiko Inaoka
Original assignee: Matsushita Electric Works, Ltd.
Priority date: 2005-04-14
Filing date: 2006-04-05
Publication date: 2006-10-26

Abstract

A lifting-type storage device having a draining rack (storage rack)(2) provided in an opening (5) for lifting formed in a part of a counter of a floor cabinet (1) for kitchen, and having a lifting mechanism (6) for lowering the draining rack (2) to a storage space (14) below the counter and lifting the draining rack (2) above the counter. The lifting-type storage device has foreign object detection sections (38, 39) for detecting that a foreign object is present in the vicinity of the opening (5) for lifting, and has a foreign object detection stop section (control box)(40) for stopping lifting and lowering operation of the draining rack (2) when the foreign object detection sections (38, 39) detect a foreign object. The construction prevents a failure occurring when the lifting mechanism (6) locks to be in an inoperable state or when a foreign object is caught to cause overloading (overcurrent) and other trouble.

Description

Specification

Lifting storage device

Technical field

The present invention relates to an elevating storage apparatus provided in a kitchen floor cabinet that is suitably used as a so-called open type facing kitchen.

Background art

[0002] Since a kitchen floor cabinet is generally provided with a storage section under a counter, an operator temporarily suspends cooking work and the like in order to put in and out stored items such as dishes, pans, and seasonings. In the bent state, it was necessary to put in and out the stored items from the storage unit. For this reason, a storage section is provided in a top bag above the floor cabinet so that the storage section can be pulled down when a stored item is taken in or out (see Patent Documents 1 and 2).

[0003] However, especially in the open type facing kitchen where there is no wall between the kitchen and the dining room, if the top bag is provided, the feeling of opening will be spoiled. There is a problem that the elevating type storage device as described in Patent Documents 1 and 2 is difficult to adopt. Even if it is not the open-type facing kitchen, there are the same problems that it is difficult to provide the top bag even when the ceiling is low-strength or windows are installed.

[0004] Therefore, in order to make it easier to take in and out the stored items in the top bag, the applicant of the present invention forms a lift opening in a part of the counter of the kitchen floor cabinet, and the lift opening is provided in the lift opening. We proposed an elevating type storage device equipped with a storage shelf (draining shelf) to be placed and a lifting mechanism for lowering the storage shelf (draining shelf) to the storage space below the counter and raising it above the counter.

[0005] There is a storage device that stops raising and lowering the storage body based on an inspection result of an article by an article inspection switch (Patent Document 3).

[0006] However, in the liftable storage device that is above the user by being suspended from the ceiling or the like, there is foreign matter between the lift opening formed on the front or bottom surface of the liftable storage device and the storage shelf. Even if there is a small foreign object that can be pinched, it will fall naturally. On the other hand, on the upper surface of the counter like the lifting storage device according to the applicant's proposal. In the case of a structure in which the storage shelf is extended from the formed lifting opening, the top surface of the storage shelf may be used as a part of the cooking table. There is a high possibility that If pinching occurs, the elevating mechanism will lock and become inoperable or overloaded (overcurrent).

[0007] Storage shelves loaded with heavy dishes or cooking utensils may exceed 100 kg, and once such a failure occurs, a great deal of effort is required to restore them. In addition, when the storage shelf is lowered to the lower limit position, which is the storage position, in terms of splashing from the sink and insect protection, the gap between the counter and the storage shelf near the lift opening is narrow and small. If a foreign object gets caught and the storage shelf is almost lowered to the lower limit, there is a possibility that the tool itself and the operator's hands will not be available, and the recovery itself will be difficult. Therefore, there is a demand for preventing foreign matter from being caught between the storage shelf and the counter surface near the lifting opening.

Patent Document 1: Japanese Unexamined Patent Publication No. 2000-316643

Patent Document 2: Japanese Patent Laid-Open No. 2001-149297

Patent Document 3: Actual Fairness 6-20437

Disclosure of the invention

[0008] An object of the present invention is to meet the above-mentioned demand, and it is possible to prevent a problem due to foreign matter being caught between a storage shelf and a counter surface near the lifting opening. Is to provide a device.

[0009] The lifting storage device of the present invention includes a storage shelf disposed in a lifting opening formed in a part of a counter of a kitchen floor cabinet, and lowering the storage shelf into a storage space under the counter. An elevating mechanism that raises the counter, a foreign object detecting unit that detects that there is a foreign object in the vicinity of the elevating opening, and a lifting operation of the storage shelf by the elevating mechanism when the foreign object is detected by the foreign object detecting unit. And a foreign object detection stop part for stopping the operation.

Brief Description of Drawings

FIG. 1 is a kitchen floor cabinet showing an embodiment of the present invention, in which (a) is a perspective view of a draining shelf in a lowered position, and (b) is a perspective view of a draining shelf in an elevated position.

[Fig. 2] (a) is a perspective view of an L-shaped floor cabinet, and (b) is a front view of a switch panel. 圆 3] It is a perspective view of the lifting storage device as seen from the side of the dining room.

圆 4] (a) is a front view of the lifting storage device with a view of dining capacity, and (b) is a side view of the drain trap.

圆 5] (a) is a plan view of the elevating storage device with the draining shelf omitted, and (b) is a cross-sectional side view of the main part of the elevating storage device.

圆 6] (a) is a perspective view of a draining shelf with the top plate omitted, and (b) is a perspective view of a guide rail and a bracket.

[7] FIG. 7 is an exploded perspective view of a draining shelf with the top plate omitted.

8] A draining shelf provided with a foreign matter detection unit, (a) is an overall perspective view, (b) is a perspective view of the cover frame, and (c) is a cross-sectional view of the main part of the cover frame.

9] It is an enlarged cross-sectional view of the cover frame portion.

圆 10] A draining shelf provided with a foreign matter detection unit of a modified example, (a) is a perspective view of the main part, (b) is a sectional view of the mold part, and (c) is a draining shelf with a piezoelectric sensor on the top plate. It is a whole perspective view of a shelf.

[FIG. 11] (a) is a circuit diagram of an electrostatic detection sensor, and (b) is a system diagram of foreign object detection.

FIG. 12 is a block diagram showing an electrical configuration of a sensing part related to raising and lowering a draining shelf in a control box in a kitchen floor cabinet according to another embodiment of the present invention.

FIG. 13 is a graph showing the relationship between a reference value for detecting foreign matter and a determination threshold stored in a memory.

FIG. 14 is a graph showing a change in a determination threshold value for detecting a foreign object in a kitchen floor cabinet according to still another embodiment of the present invention.

FIG. 15 is a flowchart for explaining changes in reference values for foreign object detection in a kitchen floor cabinet according to another embodiment of the present invention.

FIG. 16 is a system diagram of foreign matter detection in a kitchen floor cabinet according to still another embodiment of the present invention.

FIG. 17 is a block diagram showing an electrical configuration of a sensing portion related to raising and lowering the draining shelf in the control box in the system shown in FIG. FIG. 18 is a graph showing the relationship between the output voltage of the sliding resistance and the height of the draining shelf.

FIG. 19 is a graph for explaining the operation of foreign object detection and overload detection.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, shapes, relative arrangements, and the like of the component parts described in this embodiment are merely illustrative examples that are not intended to limit the scope of the present invention unless specifically stated otherwise. Not too much.

[0012] (Example 1)

FIG. 1 is a kitchen floor cabinet 1 according to an embodiment of the present invention. (A) is a perspective view of the draining shelf (storage shelf) 2 in the lowered position (when not in use) D, and (b) is a perspective view of the draining shelf 2 in the raised position (when in use) U. The floor cabinet 1 in FIG. 1 illustrates an open type facing kitchen without a wall surface between the kitchen and the dining. The present invention can be practiced without being an open type facing kitchen.

A sink 3 is provided on the right side of the counter of the floor cabinet 1, and a draining shelf 2 that is a storage shelf is disposed at a rear position of the sink 3. The draining shelf 2 may be arranged at a side position of the sink 3. A stove 4 is provided on the left side of the counter of the floor cabinet 1. Here, the left-right and front-rear directions are expressed as if the person was standing in front of the sink 3 on the kitchen side and facing the dining side.

On the other hand, as shown in FIG. 2 (a), when the floor cabinet 1 is L-shaped, the draining shelf 2 can be provided in a corner space. In this case, the corner space that becomes a dead space can be used effectively. In particular, if both the left and right sides of the kitchen side of the draining shelf 2 are opened, it becomes easier to put in and out the storage items such as tableware, and the usability is improved. Further, although not specifically shown, when the floor cabinet 1 is U-shaped, the draining shelf 2 can be provided in at least one of the left and right corner spaces. Even in this case, the same effect as the L-shaped floor cabinet 1 can be obtained.

[0015] As shown in FIG. 3, the draining shelf 2 is disposed in an elevating opening 5 formed in a counter of the floor cabinet 1, and is stored in the storage space under the counter by an elevating mechanism 6 described later. Ascending / descending displacement occurs between the descending position D that is lowered between 14 and the ascending position U that is elevated on the counter.

[0016] As shown in Fig. 1 (b), the draining shelf 2 is provided with tableware draining portions 2a, 2b in two upper and lower stages, and in an upper portion of the upper draining portion 2a, A cleaning part 2c and a cutting board storage part 2d are provided, and a small part storage part 2e for storing small items such as seasonings and wraps in two stages up and down is provided at the left side of the draining parts 2a and 2b. Is provided.

[0017] As shown in FIG. 1 (a), the top plate 2f of the draining shelf 2 is opposed to the counter counter of the floor cabinet 1 with a slight gap in the lowered position D so as to cover the lifting opening 5. Part of the counter. Thus, the top plate 2f can be used as a counter space (cooking table).

[0018] A switch panel 7 for raising and lowering the draining shelf 2 is attached to the right front position of the top plate 2f. As shown in detail in FIG. 2 (b), the switch panel 7 is provided with an ascending switch 7a, a stop switch 7b, and a descending switch 7c. 7d, foreign object pinching notification 'alarm unit 7e, overload notification · alarm unit 7f is provided.

FIG. 6 (a) is a perspective view of the draining shelf 2 with the top plate 2f omitted, and FIG. 7 is an exploded perspective view of the draining shelf 2. The draining shelf 2 is stretched into a horizontally-long rectangular frame by a horizontally-long rectangular upper frame 2A and a lower frame 2B, and a vertically-long rectangular left-side frame 2C and a right-side frame 2D. A partition frame 2E having a partition plate 2g is attached between the left frame 2D and the right frame 2D.

[0020] Between the partition frame 2E and the right side frame 2D, there are both ends of the shaft shaft supporting the hooking portion 2c and the cutting board storage portion 2d, and both ends of the upper draining portion 2a. It is supported. Further, a lower draining portion 2b is supported on the upper portion of the lower frame 2B between the partition frame 2E and the right side frame 2D. A water receiving tray 10 is attached to the lower part of the lower frame 2B.

[0021] Between the partition frame 2E and the left side frame 2C, both end portions of an upper partition plate 2h that divides the upper and lower accessory storage portions 2e are supported. Further, a lower partition plate 2i is provided between the partition frame 2E and the left side frame 2C so as to be positioned above the lower frame 2B. It is supported by. It is preferable that the upper drainage portion 2a and the partition plate 2h are removed so that the height position can be adjusted.

[0022] On the back surface (dining side) defined by the upper frame 2A, the lower frame 2B, the left frame 2C, and the right frame 2D, a decorative board 11 is attached and covered, and the left frame 2C. The right decorative frame 12a to 12c are attached to the right frame 2D and the upper frame 2A, respectively. If the decorative board 11 is translucent, the interior of the draining shelf 2 can be brightened by the light on the dining side.

As shown in FIGS. 3 to 5, a storage space 14 for storing the draining shelf 2 lowered to the lowered position D is provided inside the floor cabinet 1 corresponding to the lifting opening 5. The storage space 14 is formed in a substantially U shape having an upper surface opened by the left and right side plates 14A and 14B and the bottom plate 14C. The surface on the sink 3 side of the left and right side plates 14A, 14B and the bottom plate 14C is closed by a back plate 14D, and the dining side surface is closed by an inspection door 14E.

[0024] It is advantageous to provide a ventilation fan in the storage space 14 because drying of stored items such as food items stored in the draining shelf 2 in the lowered position D is quick. Further, the draining shelf 2 itself may be configured as a tableware dryer. Furthermore, the draining shelf 2 itself may be configured as a dishwasher.

[0025] In the storage space 14, an elevating mechanism 6 for the draining shelf 2 and the like are stored. That is, a pair of guide rails 15 are fixed to the inner surfaces of the left and right side plates 14A and 14B of the storage space 14 so as to extend in the vertical direction and are spaced apart in the depth direction. An upper pulley 16A and a lower pulley 16B are fixed between the pair of guide rails 15 corresponding to the upper end portion and the lower end portion of the guide rail 15, respectively.

[0026] As shown in FIG. 6 (b), H-shaped brackets 17 are fixed to the lower portions of the left side frame 2C and the right side frame 2D of the draining shelf 2, respectively. Synthetic resin sheaths 18 are fitted to the corresponding guide rails 15 so as to be slidable in the vertical direction. Then, the drain 18 is guided by the guide rail 15 so that the shoe 18 of the bracket 17 slides on the guide rail 15. It can be moved up and down. An electric motor 20 and two drums 21A and 21B driven by the electric motor 20 via a chain 21a are installed at a substantially central position in the left-right direction of the bottom plate 14C of the storage space 14. Yes. Then, the left belt 22A is wound around the one drum 21A with a downward force and the inner end is locked, and the right belt 22B is also wound around the inner end with the other belt 21B. The part is locked.

[0028] The left belt 22A is wound around a lower pulley 16B and an upper pulley 16A in order on the left side plate 14A, and its outer end is locked to the bracket 17 of the left frame 2C of the draining shelf 2. At the same time, the right belt 22B is wound around the lower pulley 16B and the upper pulley 16A of the right side plate 14B in this order, and its outer end is a bracket 17 of the right frame 2D of the draining shelf 2. It will be locked to.

[0029] Therefore, when the electric motor 20 rotates in the forward direction by pushing the raising switch 7a of the switch panel 7, each drum 21A, 21B is driven around the arrow a in FIG. The left and right belts 22A and 22B are wound around the drums 21A and 21B. As a result, the left and right brackets 17 of the draining shelf 2 are lifted by the guide rails 15 while being pulled up by the left and right belts 22A and 22B, and the draining shelf 2 is raised to the rising position on the counter. Be raised to U. When the draining shelf 2 is raised to the raised position U, the electric motor 20 is stopped, and a brake is applied so as not to reverse by a hook or the like (not shown), and even if the raising switch 7a is further pushed. The electric motor 20 is controlled so as not to rotate forward.

[0030] By pushing the lower switch 7c of the switch panel 7, the brake of the electric motor 20 is released, and the draining shelf 2 is lowered by its own weight with its left and right brackets 17 being guided by the guide rails 15. And descend to the lower position D below the counter. In FIG. 4 (a), 17 'denotes a bracket at the lowered position D.

[0031] In this case, the force that causes the left and right belts 22A and 22B to be rewound onto the drums 21A and 21B while reversing the electric motor 20 by the weight of the draining shelf 2 due to its own weight. A structure for applying a brake (not shown) is provided so that the vehicle does not fall (fall) suddenly under its own weight. By pushing down the lowering switch 7c, the draining shelf 2 is automatically lowered to the lowering position D below the counter in this way. The lowering position D is not automatically lowered until it reaches a predetermined position just before the lowering position D (for example, about 50 mm) by one push operation, but the lowering from the predetermined position continues to push the lowering switch 7c. If it is not done, it becomes like (V, two-step push). As a result, safety is enhanced.

[0032] When the stop switch 7b of the switch panel 7 is pushed, the electric motor 20 is stopped, and the draining shelf 2 can be stopped at any position during the ascent or descent.

A control box 40 (see FIG. 3) is mounted on the bottom plate 14C of the storage space 14. Then, the control circuit in the control box 40 includes the electric motor 20, the switches 7a to 7c, and the notification alarm unit 7c! ~ 7f, the water level detector 29 shown in Fig. 4 (b) is connected.

As shown in detail in FIG. 8, the elevating opening 5 is provided with a cover frame 37 of a horizontally long conductive shape (for example, made of aluminum-um) that surrounds the four peripheries thereof. The cover frame 37 is mounted on its inner edge on a rising portion 37a that rises so as not to come into contact with each wall surface of the raising and lowering draining shelf 2, and on all four counter surfaces la of the raising and lowering opening 5 of the floor cabinet 1. And a flange portion 37b. The conductive cover frame 37 also serves as an electrostatic detection sensor 38 described later. Further, the cover frame 37 can hide the gap between the lifting opening 5 and the draining shelf 2.

On the lower surface of the flange portion 37b of the cover frame 37, piezoelectric sensors (foreign matter detection portions) 39 are attached at appropriate positions around the four circumferences. Through this piezoelectric sensor 39, the electrostatic detection sensor 38, which is the cover frame 37, is placed on the counter surface la in an electrically insulated state. Specifically, as shown in FIG. 9, a cable-shaped piezoelectric sensor 39 is fitted into a groove 37c formed on the lower surface of the cover frame 37, and the piezoelectric sensor 39 is screwed into the cover frame 37 inside. The presser plate 48 that is fixed in place is pressed so that it does not come off.

Reference numeral 49 denotes a back guard fixed to the counter surface la, and this back guard blocks the water on the counter surface la from entering the lifting opening 5. Reference numeral 59 denotes an elastic locking device attached at an appropriate position around the lifting opening 5, and by pressing an elastic locked portion 37d formed on the lower surface of the cover frame 37 from above, The locking tool The locked portion 37d is locked to 59. Therefore, the locked portion 37d of the cover frame 37 can be locked to the locking tool 59 around the lifting opening 5 with one touch. The electrostatic detection sensor 38 and the piezoelectric sensor 39 as the cover frame 37 are connected to the control circuit of the control box 40 on the bottom plate 14C of the storage space 14 by lead wires 41.

In the control circuit of the control box 40, as shown in FIG. 11 (a), a capacitance C1 between the electrostatic detection sensor 38, which is the cover frame 37, and the ground is stored in advance. When a foreign object having a capacitance (for example, a human body) touches the electrostatic detection sensor 38 that is the cover frame 37, the amount of capacitance C2 between the human body and the ground increases. C1 + C2), it can be detected that a foreign object touches the cover frame 37.

[0038] In addition, when a foreign object having no electrostatic capacity (such as a seasoning bottle) is put on the cover frame 37, the piezoelectric sensor 39 also has a pressure change force on the cover frame 37. Can be detected.

On the other hand, as shown in FIG. 4 (a), the bottom of the water receiving tray 10 of the draining shelf 2 is formed so as to be recessed downward, and a drain port 10a is provided at the center thereof. One end 25a of a flexible drain pipe 25 is connected to the drain port 1 Oa, and the other end 25b of the drain pipe 25 is connected to a water receiving mass 26 attached to the inner wall surface of the back plate 14D of the storage space 14. Connected to the upper position of!

[0040] The water receiving mass 26 is formed in a square box shape having an open top, and an inlet end of a U-shaped drain trap 27 is connected to the lower portion of the water receiving mass 26. A drain pipe 28 is connected to the outlet end of the drain trap 27. The drain pipe 28 is connected to a sewage pipe or the like (not shown) from the opening 14a (see FIG. 3) of the bottom plate 14C of the storage space 14.

[0041] An inner diameter D1 of the drainage nozzle 25 is set smaller than an inner diameter D2 of the drain pipe 28. Further, in the drain trap 27, as shown in FIG. 4 (b), a water level detector 29 for detecting the water level L in the drain trap 27 is provided.

[0042] Further, an inclined water receiving bowl 30 is placed on the inner wall surface of the back plate 14D at an almost same height as the water receiving mass 26 attached to the inner wall surface of the back plate 14D of the storage space 14. It is installed in the state. The inclined lower side of the water receiving bowl 30 is the upper part of the water receiving mass 26. It is linked to the position. The water receiving basin 30 is positioned almost directly below the lifting opening 5.

[0043] In the case of the floor cabinet 1 configured as described above, the draining shelf 2 installed in the ascending / descending opening 5 formed in the counter is lowered to the storage space 14 under the counter when not in use. It is suitable for an open type facing kitchen where there is no wall between the kitchen and the die by raising it on the counter at the time of use, and if the draining shelf 2 is raised on the counter, it will not bend It becomes possible to put in and out the stored items.

[0044] Further, since the draining shelf 2 is only raised on the counter, it becomes easy to take in and out stored items such as tableware in any stage of the draining shelf 2, and the draining shelf 2 If you lower it to the storage space 14 under the counter, you will be able to use the upper surface of the counter widely and will not interfere with other operations on the counter.

[0045] Further, when the electrostatic detection sensor 38 detects that there is a foreign object in the vicinity of the lifting opening 5 before the draining shelf 2 is lowered, as shown in FIG. The foreign matter detection stop circuit force of the control box 40 is also sent to the electric motor 20 of the lifting mechanism 6. For this reason, even if the downward switch 7c of the switch panel 7 is pushed, the electric motor 20 remains stopped and the draining shelf 2 does not descend.

In addition, when the electrostatic detection sensor 38 detects that there is a foreign object in the vicinity of the lifting opening 5 while the draining shelf 2 is descending, similarly, the electric motor 20 is urgently stopped and the draining shelf is stopped. The descent of 2 is stopped.

[0047] At the end of the descent of the draining shelf 2, when the piezoelectric sensor 39 detects that a foreign substance such as a seasoning bottle has been sandwiched between the top plate 2f and the vicinity of the lifting opening 5, the same applies. Thus, the electric motor 20 stops urgently, and the descending of the storage rack 2 is stopped.

[0048] In this way, even when the lower switch 7c of the switch panel 7 is pushed! /, Even if a foreign object is detected, these push operations are canceled. As a result, the electric motor 20 is reversed, that is, the draining shelf 2 is not lowered, so that foreign matter is caught between the draining shelf 2 and the counter surface la near the lifting opening 5. Can be prevented. In particular, by providing the electrostatic detection sensor 38 and the piezoelectric sensor 39 in the cover frame 37 around the lifting opening 5, foreign matter can be prevented from being caught between the draining shelf 2 and the cover frame 37. [0049] Further, immediately after the emergency stop of the electric motor 20 as described above, the control box is configured so that the electric motor 20 is reversed for a short time and the draining shelf 2 is moved up to a predetermined raised position. If the electric motor 20 is controlled by 40, it is easy to remove even if a foreign object is caught.

[0050] Furthermore, when a foreign object is detected, notification of the foreign object pinching notification / alarm unit 7e on the switch panel 7 can prompt the user to remove the foreign object. Even if the descent of the draining rack 2 stops due to foreign object detection, if the lift switch 7a is pushed, the electric motor 20 rotates normally, that is, if the draining rack 2 is raised, the foreign object is caught. Can be easily removed.

[0051] In addition, by combining the electrostatic detection sensor 38 and the piezoelectric sensor 39 as a foreign matter detection unit, the electrostatic detection sensor 38 can quickly detect a foreign matter (for example, a human body) having a capacitance and pinch it. This can be prevented in advance, and the piezoelectric sensor 39 can reliably detect foreign substances (for example, seasoning bottles) that do not have capacitance, so that safety is further improved. In this way, it is possible to prevent undesired foreign matter from being caught, and to prevent the occurrence of problems such as the lifting mechanism 6 being locked and becoming inoperable or being overloaded (overcurrent).

[0052] In each of the above explanations, the floor cabinet 1 indicates that there is a foreign object near the lifting opening 5 before, during and after the draining shelf 2 is lowered. The force that was used to stop the descent of the draining shelf 2 when it was detected at 39, confirm that there is a foreign object near the lifting opening 5 before, during and after the lifting of the draining shelf 2. When the electrostatic detection sensor 38 is detected by the piezoelectric sensor 39, the rising of the draining shelf 2 can be stopped. In this way, safety is further improved.

[0053] In the above description, the floor cabinet 1 is provided with the electrostatic detection sensor 38 and the piezoelectric sensor 39, but V may be only one of the sensors! /.

[0054] Fig. 10 is a modification, and as shown in Fig. 10 (a) and Fig. 10 (b), a mold frame 42 is attached to the four peripheries of the opening edge of the lifting opening 5, and In addition, a flat plate sash 43 that can be swung up and down by a hinge 43a is provided, and a limit switch 44 with an actuator 44a facing upward is mounted at an appropriate position in the mold 42. Ascending by this sash 43 The gap between the descending opening 5 and the draining shelf 2 is covered. A packing 45 that seals between the wall of the draining shelf 2 may be attached to the inner surface of the mold 42.

[0055] The sash 43 is normally swung up by the panel force of the actuator 44a. When a foreign object (for example, a seasoning bottle) is placed on the sash 43, the sash 43 is against the panel force of the actuator 44a. The sash 43 is swung downward, and the limit switch 44 is turned on. This limit switch 44 is connected to the control box 40 with a lead wire 41.

[0056] If there is a foreign object in the vicinity of the lifting opening 5 while the draining shelf 2 is being lowered, the sash 43 is swung downward against the panel force of the actuator 44a, and the limit switch 44 is turned on. To do. Accordingly, as described above, the signal is sent to the control box 40, the foreign matter detection stop circuit force of the control box 40 is sent to the electric motor 20 of the lifting mechanism 6, and the electric motor 20 is emergency Stops and the descent of the draining shelf 2 is stopped.

[0057] Further, as shown in Fig. 10 (c), a piezoelectric sensor 39 similar to the above may be provided at an appropriate position on the lower surface of the top plate 2f in the draining shelf 2. The piezoelectric sensor 39 is connected to the control box 40 with a lead wire 41.

[0058] Then, when the piezoelectric sensor 39 detects that there is a foreign object in the vicinity of the lifting opening 5 while the draining shelf 2 is descending, the signal is sent to the control box 40 in the same manner as described above, and the control is performed. The foreign matter detection stop circuit force of the box 40 is also sent to the electric motor 20 of the elevating mechanism 6 so that the electric motor 20 stops urgently and the descent of the draining shelf 2 is stopped.

[0059] In the embodiment, the draining shelf 2 which is one of the storage shelves is taken as an example of the lifting storage device of the floor cabinet 1. However, the present invention is not limited to this. It may be a dryer.

[0060] (Example 2)

FIG. 12 is a block diagram showing an electrical configuration of a sensing portion related to raising and lowering the draining shelf 2 in the control box 40 in the kitchen floor cabinet according to another embodiment of the present invention. As the structure of the kitchen floor cabinet according to the present embodiment, the structure of the above-described kitchen floor cabinet 1 can be used, and it should be noted that the method for determining foreign objects is different. The control box 40 ′ is used in place of the control box 40 described above, thereby realizing the following functions. [0061] In the floor cabinet of the present embodiment, as the sensor related to the raising and lowering of the draining shelf 2, the electrostatic detection sensor 38 and the piezoelectric sensor 39 detect the sliding resistance 45 and the photo interrupter for detecting the raising and lowering position of the draining shelf 2. 46 is provided. The arithmetic processing circuit 50 composed of a microcomputer or the like controls the lifting mechanism 6 and the like in response to the detection results.

[0062] The sliding resistance 45 is provided along the guide rail 15 to detect the ascending / descending position of the draining shelf 2, and the photo interrupter 46 includes a pair of light emitting / receiving elements 46a, 46b. It is detected that the draining shelf 2 has reached the lift upper limit position or the lift lower limit position, so that the arithmetic processing circuit 50 stops the lift mechanism 6 and detects the detection result of the sliding resistance 45. To compensate.

[0063] A bias voltage is applied to one end of the sliding resistor 45, the other end is connected to GND, and the output voltage of the sliding piece 45a provided on the draining shelf 2 side is the arithmetic processing circuit 5 0 Input to analog Z digital conversion port 50a. Therefore, the raising / lowering position of the draining shelf 2 is detected as an absolute value even when the power is turned on or after the power is restored.

[0064] In the photointerrupter 46, the light emitting element 46b includes a light emitting diode or the like, and is connected in series with the noise resistor 46c between the bias voltage source and the GND, and is always lit. For example, when the switch panel 7 is retractable, the light emitting element 46b is lit only when there is a possibility that the draining shelf 2 can be moved up and down, for example, when the switch panel 7 is exposed to the outside and can be operated. You may do it. The light receiving element 46a paired with the light emitting element 46b is composed of a phototransistor or the like, and its collector is connected to a bias voltage source via a resistor 46d, and an emitter is connected to GND via a resistor 46e. The connection point is connected to the base of transistor 46f. The collector of the transistor 46f is connected to a bias voltage source through a bull-up resistor 46g, and the emitter is connected to GND. The connection point between the collector of the transistor 46f and the pull-up resistor 46g is connected to the input port of the arithmetic processing circuit 50.

Therefore, while the light from the light emitting element 46b is incident on the light receiving element 46a, a current flows through the light receiving element 46a and a base voltage is applied to the transistor 46f. As a result, the transistor 46f is turned on and the input port of the arithmetic processing circuit 50 becomes low level. to this On the other hand, while the light from the light emitting element 46b is not incident on the light receiving element 46a, no current flows through the light receiving element 46a, the transistor 46f is turned off, and the input port of the arithmetic processing circuit 50 becomes high level. Such a photo interrupter 46 is provided on the draining shelf 2 side, and a through hole or a light shielding plate provided on the guide rail 15 side forms or blocks an optical path between the light receiving element 46a and the light emitting element 46b. The arithmetic processing circuit 50 can detect that the draining shelf 2 has reached the up / down upper limit position or the up / down lower limit position.

On the other hand, as the configuration relating to the electrostatic detection sensor 38, an oscillation circuit 51, a tuning circuit 52, a DC cut / smoothing circuit 53, and an amplifier circuit 54 are provided.

The oscillation circuit 51 includes a resonator 51a including resonance capacitors 51b and 51c and inverters 5 Id and 51e, and oscillates a signal having a predetermined frequency. The tuning circuit 52 includes an LC filter including an inductor 52b and a capacitor 52c connected to a downstream side of the resistor 52a, and a resistor 52a inserted in a signal line from the oscillation circuit 51. The inductor 52b The electrostatic detection sensor 38 is connected to a connection point between the capacitor 52c and the capacitor 52c. Therefore, with respect to the oscillation signal from the oscillation circuit 51, the tuning frequency is changed by the capacitance of the electrostatic detection sensor 38, and the amplitude of the output signal from the tuning circuit 52 is changed.

The DC cut / smoothing circuit 53 includes a DC cut capacitor 53a, smoothing diodes 53b and 53c and a capacitor 53d, and a discharge resistor 53e of the capacitor 53d. A DC voltage corresponding to the output amplitude of the tuning circuit 52 is output. The DC voltage is input to the amplifying circuit 54 via the resistor 56, amplified, and then input to the analog Z / digital conversion port 50 b of the arithmetic processing circuit 50. The determination unit 50x of the arithmetic processing circuit 50 determines whether the output level of the amplification circuit 54 has exceeded a predetermined determination threshold, that is, changes in capacitance due to contact of foreign matter with the electrostatic detection sensor 38. The contact of foreign matter to the electrostatic detection sensor 38 is detected from whether or not the predetermined level exceeds a predetermined level. When there is a foreign object, the determination unit 50x stops the descending of the elevating mechanism 6 as described above, and also notifies the user of the presence of the foreign object from the foreign object pinching / alarm unit 7e.

Therefore, the arithmetic processing circuit 50 constitutes a foreign object detection stop unit and will be described later. The electrostatic detection sensor 38 constitutes an electrode, the oscillation circuit 51, the tuning circuit 52, the DC cut'smoothing circuit 53, and the amplification circuit 54. Constitutes signal processing means.

In the floor cabinet configured as described above, it should be noted that in the memory 50c of the arithmetic processing circuit 50, the upper / lower upper limit position force of the draining shelf 2 is also set at each stop position in the up / down range up to the lower limit position. On the other hand, the reference value of the input level to the analog Z / digital conversion port 50b is stored, and the correction unit 50d in the arithmetic processing circuit 50 includes the ascending switch 7a, the stopping switch 7b, and the descending switch of the switch panel 7. When the draining shelf 2 is moved up and down by the operation of the switch 7c and stops, the stop position is detected from the output of the sliding resistance 45, the reference value corresponding to the stop position is read from the memory 50c, and the electrostatic This is to correct the determination threshold for foreign object contact detection based on the output of the detection sensor 38.

FIG. 13 is a graph showing the relationship between the reference value stored in the memory 50c and the determination threshold value. The draining shelf 2 is mainly made of a metal material and is configured as described above. Therefore, the output of the electrostatic detection sensor 38 in the non-contact state also changes depending on the amount of feeding from the lifting opening 5. Also, a difference occurs in the output of the electrostatic detection sensor 38 in a non-contact state due to variations in circuit elements in the control box 40 '. The change pattern is almost the same even if the overall level changes with respect to individual differences of products and differences in installation environment (situation around the installation position, temperature, etc.). Therefore, the memory 50c stores, as a default value, a change pattern (a measured value of one product or an average value of measured values of a plurality of products) of a representative product measured by a manufacturer. . In FIG. 13, this default value is indicated by the reference symbol α ΐ.

[0072] With respect to the extension from the lifting / lowering opening 5 of the draining shelf 2, first, in the lower limit side section indicated by reference numeral W1, the upper frame 2Α is separated from the cover frame 37 which is the electrostatic detection sensor 38. As a result, the capacitance decreases rapidly. In the section indicated by reference symbol W2 at the upper part, the draining portion 2a moves away from and closes, so that the capacitance increases and then decreases. In the upper limit section indicated by reference symbol W3, the lower frame 2B moves closer to the cover frame 37, so that the electrostatic capacitance increases rapidly. In addition, even if it is made of metal, it may be placed upright in a pan or frying pan. Most of the change patterns are determined by the frame structure and shelf arrangement.

[0073] For the default value of the change pattern indicated by the reference sign a1, the change pattern indicated by the reference sign a1 'to which a predetermined change width ΔVI is added serves as the determination threshold, and is stored in the memory 50c. Stored.

[0074] On the other hand, at the position P1 arbitrarily stopped by the operation of the ascending switch 7a, the stopping switch 7b, and the descending switch 7c, the input level to the analog Z / digital conversion port 50b is the default value. When the force is also higher by the value A V2, it can be estimated that the overall change pattern changes as indicated by the reference symbol α 2. Therefore, the correction unit 50d also changes the determination threshold indicated by the reference symbol a 1 ′ as indicated by the reference symbol (X 2 ′. The input level to the analog Z digital conversion port 50b is the default value. Similarly, when the value is lower by the value AV3, it can be presumed that the entire change pattern is changed as indicated by the reference symbol α3, and the determination can be made by shifting the determination threshold. The correction unit 50c updates the determination threshold every time the draining shelf 2 is stopped in order to cope with a change in temperature or the like.

[0075] When the capacitance change exceeding the determination threshold indicated by the reference symbol α 1 'occurs at the lift position detected by the sliding resistance 45 while the draining shelf 2 is descending, the determination unit 50χ determines that there is a foreign object and stops the descent operation.

With this configuration, the draining shelf 2 is moved up and down by the user's operation, and the threshold value for foreign object contact determination is corrected using the point where the drainage shelf 2 is arbitrarily stopped as a reference position. There is no need to provide additional time for correction, as it is not necessary to stop the draining shelf 2.

[0077] (Example 3)

FIG. 14 is a graph showing a change in the determination threshold in a kitchen floor cabinet according to still another embodiment of the present invention. The above-described configuration of FIG. 12 can also be used for the kitchen floor cabinet of the present embodiment, and only the configurations and operations of the correction unit 50d and the memory 50c of the arithmetic processing circuit 50 are partially different. The graph in FIG. 14 corresponds to the graph shown in FIG. It should be noted that in this embodiment, the memory 50c Stores the default value of the change pattern indicated by the reference symbol α 1 and the determination threshold indicated by the reference symbol α 1 ′ is ascending / descending the draining shelf 2 as indicated by the reference symbol α 1 ′ ′. The range is divided into multiple sections and stored as the maximum or average value in each section.

Then, the correction unit 50d determines the determination threshold α 1 depending on how far the input level to the analog Z digital conversion port 50b is away from the default value a 1 at the stopped position. '' Is corrected and set to the determination threshold value in the determination unit 50χ.

[0079] Therefore, it is not necessary to separately provide a time for correction, which is not necessary to stop the lifting operation of the draining shelf 2 for correction. In addition, the threshold for judging contact of foreign matter is set by dividing the lifting / lowering range of the draining shelf 2 into a plurality of sections, and can be stored in the memory 50c with a small capacity.

[0080] (Example 4)

FIG. 15 is a flowchart for explaining changes in the reference value for foreign object detection in a kitchen floor cabinet according to another embodiment of the present invention. The above-described configuration shown in FIG. 12 can also be used for the kitchen floor cabinet of this embodiment, and only the configuration and operation of the correction unit 50d and the memory 50c of the arithmetic processing circuit 50 are partially different. It should be noted that in the present embodiment, as described above, when the elevating mechanism 6 descends the draining shelf 2 to the lower limit position, which is the storage position, it stops at the lower limit position before the lower limit position. This is used to change the reference value. Specifically, as shown in FIG. 14, there is little change in the capacitance even when there is a slight displacement, and this lower limit position is taken as the reference position, and when the draining shelf 2 is lowered, the lower limit position is moved to this lower limit position. Each time the operation stops, the input level to the analog Z / digital conversion port 50b is taken into the memory 50c as the reference value, and the correction unit 50d adds the change width ΔVI to the reference value to set the determination threshold value. It is to seek.

[0081] Also, it should be noted that when stopping at another position, the input level to the analog Z digital conversion port 50b at that position is taken into the memory 50c as the reference value, and the correction unit 50d A determination threshold value is obtained by adding the change width ΔVI to a reference value, and in a state where the position is stopped for a long time, the reference value is updated to Corrections are made even if there are changes (subtle changes in temperature, humidity, and things in and out). The update is also performed by looking at the amount of change without looking at the absolute value of the capacitance, and applying feedback to the reference value assuming that the whole has changed by the amount of change.

FIG. 15 shows the reference value update operation by the correction unit 50d of the arithmetic processing circuit 50 when the operation stops at other positions. In step S1, whether or not the vehicle is stopped is determined from the output of the sliding resistance 45. When the vehicle is moving, the down-counter and the up-counter are reset in steps S2 and S3, respectively. In step S4, the reference value is cleared and the process returns to step S1.

[0083] On the other hand, when the draining shelf 2 is stopped in step S1, the process proceeds to step S11, and the data from the analog Z digital conversion port 50b is taken in. In step S12, the reference value at the time of stoppage is obtained. In step S13, the reference value is set to the current value and the process returns to step S1.

If the reference value at the time of stop is already set in step S12, the process proceeds to step S14, and the data from the analog / digital conversion port 50b is compared with the stored reference value. If there is no change from the reference value in step S15, there is no environmental change. Therefore, in steps S16 and S17, the downward counter and the upward counter are reset, and the process returns to step S1.

[0085] On the other hand, if the reference value force is also changed in step S15, the process proceeds to step S21, where it is determined whether or not the current value is above the reference value. In step S22, the counter in the downward direction is reset. In step S23, the counter in the upward direction performs a counting operation. In step S24, it is determined whether or not the count value exceeds a predetermined value. If not, return to step S1. In step S24, when the count value exceeds the predetermined value, the environmental change has occurred beyond the predetermined value, and the capacitance has increased. In step S25, the value is stored in the memory 50c. The predetermined difference is added to the set reference value, updated in step S26, and the process returns to step S1.

[0086] In step S21, if the current value is below the reference value, the process proceeds to step S32, where the upward counter is reset, and in step S33, the downward counter is reset. A count operation is performed, and in step S34, it is determined whether or not the count value exceeds a predetermined value. If not, the process returns to step S1. In step S34, when the count value exceeds the predetermined value, the environmental change has occurred beyond the predetermined value, and the capacitance has decreased. In step S35, the reference stored in the memory 50c is stored. A predetermined difference is also subtracted from the value force, updated in step S36, and the process returns to step S1.

[0087] With this configuration, in the floor cabinet 1, the memory 50c does not need to store the default value α1, and the difference between individuals at any stopped position other than the reference position is not necessary. It is possible to correct foreign matter and correct foreign matter. In addition, by making use of stopping at the reference position whenever one reciprocation is made, the correction is performed at this time, and a new reference value is input, so that the floor cabinet 1 can be caught. More accurate foreign object detection can be performed at the time of lowering to a higher lower limit position. In addition, the floor cabinet 1 sets the reference position for correcting the reference value to the position before the lower limit where the reference position is corrected when it is lowered, so that the correction can be performed without requiring additional time. it can.

[0088] (Example 5)

FIG. 16 is a system diagram of foreign matter detection in a kitchen floor cabinet according to still another embodiment of the present invention, and FIG. 17 is related to raising and lowering the draining shelf 2 in the control box 40 ”. It is a block diagram showing the electrical configuration of the sensing part. The system and the control box 40 ″ of the present embodiment are similar to the system shown in FIG. 11 (a) and the control box 40 ′ shown in FIG. Corresponding portions are denoted by the same reference numerals, and description thereof is omitted.

The sliding resistance 45 and the photo interrupter 46 are also connected to the control box 40 ″ of the present embodiment, and it should be noted that in this embodiment, the arithmetic processing in the control box 40 ″ The circuit 50 "is to detect the foreign object pinching also from the ascending / descending speed of the draining shelf 2 detected by the sliding resistance 45. The judgment unit 50y of the arithmetic processing circuit 50" detects the foreign object pinching. Then, the electric motor 20 is stopped urgently to stop the raising and lowering of the draining shelf 2 and the user is notified from the foreign object pinching notification / alarm unit 7e. Also Depending on the sliding resistance 45, the determination unit 50y detects overloading of the draining shelf 2, and notifies the overload notification / alarm unit 7f.

[0090] Specifically, the memory 50c "of the arithmetic processing circuit 50" stores a change amount ΔVI that is a first value as a threshold value for determining whether a foreign object is caught. The amount of change Δνΐ is the amount of change in the input level to the sliding resistance 45 force analog Z digital conversion port 50a corresponding to the amount of lifting per unit time At of the draining shelf 2 by the lifting mechanism 6 in advance, This represents a threshold speed for determining the inclusion of a foreign object.

Then, the determination unit 50y in the arithmetic processing circuit 50 ″ has stored the unit previously stored in the memory 50c ″ at the time when the input level to the analog Z / digital conversion port 50a is actually taken. The amount of change Δν is obtained from the difference from the input level before time At, and when the amount of change Δν is smaller than the amount of change Δνΐ, it is determined that foreign matter is caught, the lifting mechanism 6 is stopped, and the foreign matter is stopped. Notification of pinching · Alarm unit 7e notifies the user of the presence of a foreign object. Therefore, the sliding resistance 45 constitutes a speed detection unit, the determination unit 50y and the foreign object pinching notification 'alarm unit 7e constitute foreign matter detection notification means, and the determination unit 50y constitutes a foreign matter detection stop unit.

[0092] Therefore, a user who notices the notification removes the foreign matter, or the like, and the foreign object is caught such that the elevating mechanism 6 is locked and becomes inoperable or becomes overloaded (overcurrent). It is possible to prevent problems caused by this.

When the determination unit 50y determines that a foreign object is caught, the lifting mechanism 6 is stopped, and then the lifting mechanism 6 is reversed to raise and lower the draining shelf 2 by a predetermined height. As a result, even if foreign matter is caught, it can be resolved by reversal, and the user can easily remove the foreign matter.

[0094] Furthermore, the memory 50c "stores a change amount AV2 that is a second value larger than the change amount ΔVI, and the determination unit 50χ has a change amount Δν at the time of increase. When the change amount is smaller than AV2, it is determined that the vehicle is overloaded, and the user is notified from the overload notification 'alarm unit 7f. Therefore, the determination unit 50'y and the overload notification alarm Part 7f constitutes the overload notification means, so it is possible to cope with overloading only by foreign object pinching. Hereinafter, with reference to FIG. 18 and FIG. 19, specific control in the present embodiment of the determination unit 50y for the detection result of the sliding resistance 45 will be described in detail. A voltage as shown in FIG. 18 is output from the sliding resistance 45 according to the height of the draining shelf 2, and is input to the analog Z digital conversion port 50a to be converted into digital data. The determination unit 50y responds to the operation of the ascending switch 7a or the descending switch 7c while the elevating mechanism 6 is being driven while the analog Z digital conversion port is in every unit time At, for example, every several milliseconds. Take the data from 50a, calculate the difference, and monitor the change Δν, that is, the speed (ΔVZ Δt).

FIG. 19 is a graph for explaining the determination operation, and the amount of change per unit time At.

If the state where the AV is in the region W3 where the amount of change is AV2 or more continues three or more times, it is determined that there is no abnormality, and the lifting / lowering operation is continued, and the overload notification 'alarm unit 7f and foreign object pinching notification · No notification from the alarm unit 7e.

[0097] On the other hand, if the change Δν is in the region W2 that is less than the change AV2 and greater than or equal to the change ΔVI when rising, it is determined that the load is overloaded, and the rising action To make it easier to take out the contents and notify from the overload notification / alarm unit 7f.

[0098] Further, if the state of change Δν at the time of ascent and descent is in the region W1 where the amount of change is less than ΔVI continues three or more times, it is determined that foreign matter is caught and the lifting operation is stopped. , Notification of foreign object pinching · Notification from alarm unit 7e. Also, the lifting mechanism 6 is reversed. Even if the draining shelf 2 does not move even if the ascending switch 7a and the descending switch 7c are operated, the raising / lowering operation of the raising / lowering mechanism 6 is stopped and the foreign object pinching notification / alarm unit 7e is stopped. Notification.

[0099] In the above-described example, the common change amount ΔVI is used as the foreign object pinching determination threshold value at the time of ascent and descent, but may be set to different values. In addition, although the determination of overloading is performed only at the time of ascent, it may be performed at the time of descending. In these cases, the weight of the draining shelf 2 and its contents assists the rotation of the motor 20 of the lifting mechanism 6 when descending, and prevents the rotation when rising, preventing the rotation of the structure. If the threshold change amount is set adaptively, [0100] Thus, by combining the electrostatic detection sensor 38, the piezoelectric sensor 39, and the sliding resistance 45 as the foreign matter detection unit, the electrostatic detection sensor 38 can quickly detect foreign matter having a capacitance such as a human body. In addition to preventing pinching, the piezoelectric sensor 39 can reliably detect foreign substances such as seasoning bottles that do not have electrostatic capacity, and can also be pinched by the lifting speed of the draining shelf 2 due to the sliding resistance 45. By detecting, it is possible to detect even an object that cannot be detected by the electrostatic detection sensor 38 and a lightweight object that cannot be detected by the piezoelectric sensor 39, for example, sandwiching of disposable chopsticks or packaging material. It will be possible to improve safety. In this way, it is possible to prevent undesired foreign matter from being caught, and to prevent the occurrence of a malfunction such as V when the lifting mechanism 6 is locked and becomes inoperable or becomes overloaded (overcurrent). be able to.

[0101] In each of the above embodiments, the drainage shelf 2 which is one of the storage shelves is taken as an example of the liftable storage device of the floor cabinet 1. However, the present invention is not limited to this. It may be a machine.

[0102] According to one aspect of the present invention, a storage shelf disposed in a lift opening formed in a part of a counter of a kitchen floor cabinet, and the storage shelf is lowered into a storage space under the counter. An elevating mechanism that raises the counter, a foreign object detecting unit that detects that there is a foreign object in the vicinity of the elevating opening, and when the foreign object is detected by the foreign object detecting unit, the elevating mechanism moves the storage shelf up and down. Foreign matter detection stop means for stopping the operation is provided.

[0103] According to the above configuration, it is possible to prevent foreign matter from being caught.

[0104] Further, according to another aspect of the present invention, when the storage shelf is lowered, the foreign matter detection means detects a foreign matter, and the foreign matter detection stop means causes the lifting mechanism to stop the lowering operation of the storage shelf. After that, the foreign object detection stopping means is characterized in that the elevating mechanism raises the storage shelf to a predetermined ascending position.

According to the above configuration, when the foreign matter is detected by the foreign matter detection means when the storage shelf is lowered, the foreign matter detection stop means stops the downward movement operation of the storage shelf, and after the stop, the predetermined rise is performed. By moving up to the position, it is possible to prevent foreign matter from being caught, and even if foreign matter is caught, it can be easily removed. [0106] Furthermore, according to another aspect of the present invention, the foreign object detection means is provided in the cover frame around the lifting opening, so that the foreign object is sandwiched between the storage shelf and the cover frame. It can be prevented beforehand.

[0107] Further, according to another aspect of the present invention, since the foreign object detection means is an electrostatic detection sensor, it can detect a foreign object (for example, a human body) having a capacitance.

[0108] Furthermore, according to another aspect of the present invention, since the foreign matter detection means is a piezoelectric sensor, foreign matter having no electrostatic capacity (for example, a seasoning bottle) can be detected.

[0109] Further, according to another aspect of the present invention, the foreign matter detection means is a combination of an electrostatic detection sensor and a piezoelectric sensor, so that a foreign matter having a capacitance (for example, a human body) and electrostatic Foreign substances that do not have a capacity (for example, seasoning bottles) can be detected.

[0110] Still further, according to another aspect of the present invention, a storage shelf disposed in a lift opening formed in a part of a counter of a kitchen floor cabinet, and the storage shelf as a storage space under the counter. In an ascending / descending-type storage device having an elevating mechanism for lowering and raising the counter, a change in capacitance caused by contact of foreign matter with the electrode provided around the elevating opening is used as a signal. Obtained in a state in which the signal processing means to be taken out, a judgment means for judging whether or not there is a foreign object in the vicinity of the opening for raising and lowering from the output signal of the signal processing means, and the storage shelf in a predetermined reference position. The storage means storing the output of the signal processing means to be performed as a reference value, and the output of the signal processing means in a state where the storage shelf is actually at the reference position and the reference value are compared. In accordance with the comparison result, the foreign matter detection means configured to include a correction means for changing a judgment threshold value for foreign matter detection in the judgment means, and when the foreign matter detection means detects the foreign matter, Foreign matter detection stop means for stopping the lowering of the storage shelf by a mechanism is provided.

[0111] According to the above configuration, the storage shelf used in the kitchen floor cabinet realized as an open-type facing kitchen or the like and disposed in the lifting opening formed in a part of the counter is provided with a lifting mechanism. In the elevating type storage device that is raised above the counter and lowered into the storage space under the counter, the presence / absence of foreign matter is detected at least when lowered, and the foreign matter detection stop means detects the foreign matter when the foreign matter is detected. Descent By stopping the operation, it is possible to prevent foreign matter from being caught between the storage shelf and the counter surface near the lifting opening.

[0112] In performing such control, the foreign matter detecting means takes out as a signal the change in capacitance caused by the contact of the foreign matter with the electrode provided around the lifting opening and the electrode. In the case of a configuration based on capacitance detection that includes a processing unit and a determination unit that determines whether there is a foreign object in the vicinity of the lifting opening from the output signal of the signal processing unit, Due to variations among individuals and variations in installation environment, the determination threshold of foreign matter detection in the determination means of the foreign matter detection means also varies.

[0113] Therefore, the foreign matter detection means includes storage means for storing the output of the signal processing means as a reference value to be obtained in a state where the storage shelf is at a predetermined reference position, and the storage shelf. Compensation means for comparing the output of the signal processing means in the state of being actually at the reference position with the reference value, and changing the determination threshold value of foreign matter detection in the determination means according to the comparison result is further provided. Since the variation between the individual products and the variation in the installation environment are corrected, the presence / absence of foreign matter can be accurately determined, and the determination threshold is small! / If the judgment threshold is large !, it is possible to prevent pinching that occurs in some cases.

[0114] Furthermore, according to another aspect of the present invention, the lifting mechanism moves the storage shelf up and down in response to a user operation, and the storage means stops each of the lifting ranges of the storage shelf. The reference value is stored for a position, and the correction means reads a reference value corresponding to the position at which the lifting mechanism has stopped the lifting / lowering displacement of the storage shelf from the storage means, and the reference value and the The determination threshold value of the determination unit is changed according to a difference from the output of the signal processing unit.

[0115] According to the above configuration, the storage shelf is moved up and down by the user's operation, and correction is performed using the stopped point as the reference position. Therefore, it is not necessary to temporarily stop the downward movement of the storage shelf for correction. It is not necessary to set aside time for correction.

[0116] Further, according to another aspect of the present invention, the elevating mechanism displaces the storage shelf up and down in response to a user operation, and the storage means stops each of the elevating ranges of the storage shelf. The reference value for the position is memorized, and the lifting range of the storage shelf is divided into a plurality of sections. The correction threshold is stored at the time when the lifting mechanism stops the reference value corresponding to the position at which the lifting / lowering displacement of the storage shelf is stopped and the lifting / lowering displacement is stopped. The determination threshold value of the section to which it belongs is read from the storage means, and the determination threshold value of the determination means is changed according to the difference between the reference value and the output of the signal processing means.

[0117] According to the above configuration, the determination threshold value is set by dividing the lifting range of the storage shelf into a plurality of sections, and can be stored in the storage unit with a small capacity.

[0118] Furthermore, according to another aspect of the present invention, the elevating mechanism stops the storage shelf at the lower limit position before the lower limit position when the elevator mechanism is lowered to the lower limit position that is the storage position. In response to the user's operation, the lowering is performed to the lower limit position, and the reference position is the position before the lower limit.

[0119] According to the above configuration, the change in capacitance is relatively steep near the upper and lower ranges of the upper limit position and the lower limit position, which is the storage position, where the storage shelf protrudes most by the counter, and the reference position As a result, the capacitance changes greatly due to a slight shift in position when stopped. On the other hand, the change in the capacitance is relatively gentle except near both ends, and the change in the capacitance is small even if there is a slight shift in the stop position. It is suitable for determining variations in installation and installation environments.

[0120] On the other hand, when determining the variation, the storage shelf needs to be stopped, and the variation determination may be performed when the storage shelf is stopped at an arbitrary position other than the vicinity of the both ends by a user's operation. The reference values must be stored for all stop positions in the range other than the vicinity of both ends, and the capacity of the storage means increases.

[0121] Therefore, in order to prevent foreign objects from getting in, the elevating mechanism stops at the lower limit position before the lower limit position when the elevating mechanism is lowered to the lower limit position as the storage position, and the If the reference position is configured to descend to the lower limit position, the reference position is set to the position before the lower limit where the reference position is temporarily stopped.

[0122] Therefore, highly accurate correction can be performed without requiring additional time.

[0123] Further, according to another aspect of the present invention, a counter of a kitchen floor cabinet is provided. A lifting storage device comprising: a storage shelf disposed in a lifting opening formed in a section; and a lifting mechanism that lowers the storage shelf to a storage space below the counter and lifts the storage shelf above the counter. In response to the detection result of the speed detection means and the speed detection means for detecting the lifting speed of the shelf, when the lifting speed is smaller than a predetermined first value, it is determined that the foreign object is caught and used And foreign matter detection and notification means for notifying a person.

[0124] According to the above configuration, the storage shelf used in the kitchen floor cabinet realized as an open-type facing kitchen or the like and disposed in the lifting opening formed in a part of the counter is provided with a lifting mechanism. , The lifting / lowering speed of the storage shelf is detected by the speed detection means, and the detection result is smaller than a predetermined first value. In this case, the foreign object detection / notification means determines whether the foreign object is caught and notifies the user by sound, image, light, etc., so that the user who notices the notification removes the foreign object. In addition, it is possible to prevent problems caused by foreign matter being caught, such as the lifting mechanism being locked and becoming inoperable or being overloaded (overcurrent).

[0125] Still further, according to another aspect of the present invention, a storage shelf disposed in a lift opening formed at a part of a counter of a kitchen floor cabinet, and the storage shelf below the counter And a lifting / lowering mechanism having a lifting / lowering mechanism that lifts the counter on the counter, in response to the detection result of the speed detection means, a speed detection means for detecting the lifting speed of the storage shelf, Foreign matter detection stop means for determining whether the foreign object is caught and stopping the raising / lowering of the storage shelf by the lifting mechanism when the ascending / descending speed is lower than a predetermined first value.

[0126] According to the above configuration, the storage shelf used in the kitchen floor cabinet realized as an open-type facing kitchen or the like and disposed in the lifting opening formed in a part of the counter is provided with the lifting mechanism. , The lifting / lowering speed of the storage shelf is detected by the speed detection means, and the detection result is smaller than a predetermined first value. In this case, the foreign object detection stop means determines whether the foreign object is caught and stops the raising / lowering of the storage shelf by the lifting mechanism. Therefore, it is possible to prevent problems due to foreign objects being caught such as the lifting mechanism being locked and becoming inoperable or being overloaded (overcurrent).

[0127] In addition, according to another aspect of the present invention, the foreign object detection stopping unit causes the lifting mechanism to stop moving up and down the storage shelf, and then reverses and lifts the storage shelf by a predetermined height. Features.

[0128] According to the above configuration, even if foreign matter is caught, it can be eliminated by reversal, and the user can easily remove the foreign matter.

[0129] Furthermore, according to another aspect of the present invention, in response to the detection result of the speed detection means, when the ascending speed becomes smaller than a predetermined second value larger than the first value, It is characterized by further comprising an overloading notification means for determining that it is overloading and notifying the user.

[0130] According to the above-described configuration, it is possible to cope with overloading that involves only the insertion of foreign matter.

[0131] Further, according to another aspect of the present invention, in response to a detection result of the speed detection unit, when an ascending speed is smaller than a predetermined second value larger than the first value, It is further characterized by further comprising overload detection stop means for determining that the load is overloaded and stopping the lifting and lowering of the storage shelf by the lifting mechanism.

[0132] According to the above configuration, it is possible to cope with overloading that involves only the insertion of foreign matter.

Industrial applicability

[0133] When a foreign object is detected, the lifting operation is stopped and the user is notified, so a draining shelf (storage shelf) placed in the lifting opening formed in a part of the counter of the kitchen floor cabinet is installed. When raising and lowering, locking and overload of the lifting mechanism are prevented, which is preferable.

Claims

The scope of the claims

[1] A storage shelf placed in a lift opening formed in a part of a counter of a kitchen floor cabinet;

An elevating mechanism for lowering the storage shelf to the storage space under the counter and raising it on the counter,

A foreign matter detector for detecting the presence of foreign matter in the vicinity of the lifting opening;

An elevating type storage apparatus comprising: a foreign object detection stop unit that stops an elevating operation of the storage shelf by the elevating mechanism when a foreign object is detected by the foreign object detection unit.

[2] When the foreign matter is detected by the foreign matter detection unit when the storage shelf is lowered and the foreign matter detection stop unit causes the lifting mechanism to stop the lowering operation of the storage shelf, the foreign matter detection stop unit 2. The liftable storage device according to claim 1, wherein the mechanism is configured to raise the storage shelf to a predetermined raised position.

[3] The elevating storage apparatus according to claim 1 or 2, wherein the foreign matter detection unit is provided in a cover frame around the elevating opening.

[4] The foreign matter detection unit includes:

An electrode provided around the lifting opening;

A signal processing means for taking out as a signal a change in capacitance caused by contact of foreign matter with the electrode;

Determination means for determining whether there is a foreign object in the vicinity of the lifting opening from the output signal of the signal processing means;

Storage means for storing, as a reference value, an output of the signal processing means to be obtained in a state where the storage shelf is at a predetermined reference position;

A correction unit that compares the output of the signal processing unit in a state where the storage shelf is actually at the reference position and the reference value, and changes a determination threshold value of foreign matter detection in the determination unit according to the comparison result. The elevating storage device according to claim 1, comprising:

[5] The lifting mechanism moves the storage shelf up and down in response to a user operation,

The storage means stores the reference value for each stop position in the lifting range of the storage shelf. I remember

The correction means reads from the storage means a reference value corresponding to the position where the lifting mechanism stops the lifting displacement of the storage shelf, and according to the difference between the reference value and the output of the signal processing means, 5. The elevating storage apparatus according to claim 4, wherein a determination threshold value of the determination unit is changed.

[6] The lifting mechanism moves the storage shelf up and down in response to a user operation,

The storage means stores the reference value for each stop position of the storage rack up / down range, divides the storage shelf up / down range into a plurality of sections, and stores determination threshold values in each section. And

The correction means reads from the storage means a reference value corresponding to a position at which the lifting mechanism stops the lifting displacement of the storage shelf and a determination threshold of a section to which the lifting / lowering displacement belongs at the time when the lifting displacement is stopped. 5. The elevating storage apparatus according to claim 4, wherein a determination threshold value of the determination means is changed according to a difference between the output of the signal processing means and the output of the signal processing means.

[7] The elevating mechanism stops the storage shelf at the lower limit position before the lower limit position when the elevator mechanism is lowered to the lower limit position, and returns to the lower limit position in response to a user operation. The elevating type storage apparatus according to claim 4, wherein the reference position is a position before the lower limit, and is moved downward.

[8] A storage shelf placed in a lift opening formed in a part of the counter of the kitchen floor cabinet, and a lift that lowers the storage shelf to the storage space under the counter and raises it on the counter In a lift storage device comprising a mechanism,

A speed detecting unit for detecting a lifting speed of the storage shelf;

In response to the detection result of the speed detection unit, a foreign object detection notification means for determining whether the foreign object is caught and notifying the user when the ascending / descending speed is smaller than a predetermined first value is included. Elevating storage device characterized.

[9] A storage shelf placed in a lift opening formed in a part of a counter of a kitchen floor cabinet, and a lift that lowers the storage shelf to a storage space under the counter and raises it on the counter In a lift storage device comprising a mechanism,

A speed detecting unit for detecting a lifting speed of the storage shelf; In response to the detection result of the speed detection unit, when the ascending / descending speed is smaller than a predetermined first value, the foreign object detection is stopped by determining whether the foreign object is caught and stopping the raising / lowering of the storage shelf by the elevating mechanism. And a lifting and lowering storage device.

10. The lifting / lowering storage device according to claim 9, wherein the foreign matter detection stop unit causes the lifting mechanism to stop lifting and lowering the storage shelf, and then reverses and lifts the storage shelf by a predetermined height. .

[11] In response to the detection result of the speed detection unit, when the ascending speed becomes smaller than a predetermined second value that is larger than the first value, it is determined that the vehicle is overloaded and the user is notified. The elevating storage device according to any one of claims 8 to 10, further comprising overloading notification means for performing the operation.

[12] In response to the detection result of the speed detection unit, when the ascending speed becomes smaller than a predetermined second value larger than the first value, it is determined that the vehicle is overloaded, and the lifting mechanism 11. The lifting storage apparatus according to any one of claims 8 to 10, further comprising an overload detection stop unit that stops the lifting and lowering of the storage shelf.