JP2006296574A - Device for detecting movement position - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for detecting a movement position by which the movement position or others of a translocator having a long reciprocating moving distance can be precisely detected by means of a compact and inexpensive variable resistor. <P>SOLUTION: The variable resistor 55 having an operation shaft part 55a capable of reciprocatingly moving in a direction orthogonal to the movement direction of a translocator (a storing shelf) 2 is secured to the translocator 2 reciprocatingly moving, a rail 56 for detecting a position is arranged inclined relative to the moving direction of the translocator 2, the operation shaft part 55a of the variable resistor 55 is engaged with the rail groove 56a of the rail 56 for a position, the operation shaft part 55a of the variable resistor 55 is moved in the rail groove 56a of the rail 56 for detecting a position while following to the movement of the translocator 2, thereby the reciprocating moving distance of the operation shaft part 55a of the variable resistor 55 can be set short (for example 30 mm) by the inclination angle of the rail 56 for detecting a position even though the reciprocating moving direction of the tanslocator 2 is long (for example 500 mm). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a moving position detection device.

  In general, as a reciprocating moving body, for example, a storage shelf disposed in a lifting 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, and a counter There is the storage shelf in the liftable storage device provided with a lift mechanism that lifts upward.

  Conventionally, kitchen floor cabinets have a storage section under the counter, so in order to put in and out stored items (dish, pans, seasonings, etc.), the cooking section is temporarily suspended and the storage section is bent and bent. It was necessary to take in and out the storage.

  For this reason, there is a structure in which 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 and out (see Patent Documents 1 and 2).

  However, the lifting and lowering storage devices as disclosed in Patent Documents 1 and 2 have a problem that it is difficult to put in and out the stored items in the upper stage of the storage unit even when the storage unit is pulled down.

  Moreover, in the open type facing kitchen where there is no wall between the kitchen and the dining room, there is no wall to be installed, and thus there is a problem that it is difficult to install the lifting storage device.

Therefore, the applicant of the present invention is suitable for an open-type facing kitchen, and a storage shelf (drainer) disposed in a lift opening formed in a part of a counter of a kitchen floor cabinet in order to make it easy to put in and out the stored items. A lifting / lowering storage device including a shelf) and a lifting mechanism for lowering the storage shelf (draining shelf) to a storage space below the counter and raising the storage shelf on the counter has been proposed.
JP 2000-316643 A JP 2001-149297 A

  There has been a demand for accurately detecting the movement position of a storage shelf (moving body) having a long reciprocation distance in the elevating storage apparatus or the like according to the applicant's proposal.

  The present invention has been made in response to the above-described demand, and provides a moving position detection device that can accurately detect the moving position of a moving body having a long reciprocating movement distance with a small and inexpensive variable resistor. Is an issue.

  In order to solve the above-mentioned problems, the present invention attaches a variable resistor having an operating shaft portion capable of reciprocating in a direction orthogonal to the moving direction of the moving body to the reciprocating moving body. Position the rail for position detection in an inclined state with respect to the moving direction, engage the operation shaft portion of the variable resistor in the rail groove of the position detection rail, and follow the movement of the moving body, The moving position detecting device is characterized in that the operation shaft portion of the variable resistor is moved in the rail groove of the position detecting rail.

  In order to detect the start position, the end position, the midway position, etc. of the reciprocating movement of the moving body with high accuracy, it is preferable to provide a detection switch for detecting the moving position of the moving body.

  In order to make the installation cost and the installation space efficient, it is preferable to attach the detection switch to the variable resistor.

  In order to perform feedback control of the moving speed of the moving body, it is preferable to provide a control circuit for detecting the moving position and moving speed of the moving body from the output information of the variable resistor.

  It is preferable to provide a control circuit for detecting an abnormality of the variable resistor and the detection switch from the output information of the variable resistor and the detection switch so that either the variable resistor or the detection switch can be determined as a failure (abnormal). .

  In order to protect the detection switch from an external impact, it is preferable to provide a protective wall for the detection switch in the variable resistor.

  In order to be able to accurately detect the raising / lowering position and the like, the moving body includes a storage shelf arranged in an opening for raising / lowering formed in a part of a counter of a kitchen floor cabinet, and the storage shelf below the counter. It can be set as the structure which is the said storage shelf in the raising / lowering storage apparatus provided with the raising / lowering mechanism raised to a storage space while raising to a counter.

  According to the present invention, the variable resistor is attached to the reciprocating moving body, and the operation shaft portion of the variable resistor is engaged with the rail groove of the position detection rail, thereby following the movement of the moving body. Since the operation shaft of the variable resistor is moved in the direction perpendicular to the moving direction of the moving body using the rail groove of the position detection rail, the moving position of the moving body is accurately detected from the output information of the variable resistor. become able to.

  Even if the reciprocating distance of the moving body is long (for example, 500 mm), the reciprocating distance of the operation shaft portion of the variable resistor can be set short (for example, 30 mm) by the inclination angle of the position detection rail (for example, 30 mm). Even with a variable resistor, it is possible to accurately detect the moving position of a moving body having a long reciprocating distance.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  1 and 2 show a kitchen floor cabinet 1. FIG. 1 is a perspective view of a storage shelf (draining shelf) 2 in a lowered position (when not in use) D, and FIG. 2 shows a storage shelf 2 in a raised position (when in use). ) U is a perspective view. The floor cabinet 1 is assumed to be an open type facing kitchen with no wall surface between the kitchen and the dining / living room, but it is possible to use the floor cabinet 1 without being an open type facing kitchen.

  A sink 3 is provided on the right side of the counter 1 a of the floor cabinet 1, and a storage shelf 2 is disposed behind the sink 3. In addition, the storage shelf 2 can also be arrange | positioned in the side position of the sink 3. FIG. Here, the expressions of the left and right and front and rear directions are as viewed by a person standing in front of the sink 3 on the kitchen side and facing the dining / living side.

  The storage shelf 2 is disposed in a lift opening 5 formed in the counter 1a of the floor cabinet 1, and the storage shelf 2 is lowered to a storage space 14 below the counter by a lift mechanism 6 described later. It is moved up and down to D and to the rising position U to be raised on the counter. As shown in FIG. 2, the lifting opening 5 is covered with a cover frame 8 having a horizontally long rectangular frame shape.

  The storage shelf 2 is provided with tableware drainers 2a and 2b in two upper and lower stages.

  As shown in FIG. 1, the top counter 4 of the storage shelf 2, in the lowered position D, covers the lifting opening 5 together with the cover frame 8 and faces the counter surface of the floor cabinet 1 with a slight gap therebetween. Therefore, the top of the top counter 4 can be used as a counter space (work space).

  A switch panel 7 for raising and lowering the storage shelf 2 is attached to the right front position of the top counter 4. As shown in detail in FIG. 3, the switch panel 7 includes a lift switch 7 a, a stop switch. 7b, a descent switch 7c, and a trap water supply notification / alarm unit 7d composed of a flashing lamp and a speaker, a foreign object pinching notification / alarm unit 7e, and an overload notification / alarm unit 7f are provided.

  FIG. 8 is a perspective view of the storage shelf 2 from which the top counter 4 is omitted. The storage shelf 2 is integrally assembled by welding or the like into a horizontally long rectangular frame with a horizontally long rectangular upper frame 2A and a lower frame 2B, a vertically long rectangular left frame 2C and a right frame 2D. A water receiving tray 10 (see FIG. 5) is attached to the lower part of the lower frame 2B.

  A decorative plate 11 is attached and covered on the back surface (dining / living side) of the upper frame 2A, the lower frame 2B, the left frame 2C, and the right frame 2D, and the left frame 2C and the right frame 2D. The decorative plates 12a to 12c are attached to the upper frame 2A. In addition, when the decorative board 11 is translucent, the inside of the storage shelf 2 can be brightened by the light on the dining / living side.

  A ventilation fan 35 is attached to the lower surface of the decorative plate 12c of the upper frame 2A of the storage shelf 2, that is, the ceiling side of the storage shelf 2.

  As shown in FIGS. 4 to 7, a storage space 14 for storing the storage shelf 2 at the lowered position D is provided inside the floor cabinet 1 corresponding to the lifting opening 5. The side plates 14A and 14B and the bottom plate 14C are formed in a substantially U shape with the upper surface opened. The surfaces on the sink 3 side of the left and right side plates 14A, 14B and the bottom plate 14C are closed by a back plate 14D, and the dining side surface is closed by an inspection door 14E so as to be opened and closed.

  In the storage space 14, the lifting mechanism 6 of the storage shelf 2 and the like are stored. That is, on the inner surfaces of the left and right side plates 14 </ b> A and 14 </ b> B of the storage space 14, a pair of guide rails 15 are respectively fixed in the depth direction and positioned between the pair of guide rails 15. An upper pulley 16A and a lower pulley 16B are fixed to the inner surfaces of the left and right side plates 14A and 14B, corresponding to the upper end portion and the lower end portion of the guide rail 15, respectively.

  Brackets 17 are respectively fixed to the lower portions of the left frame 2C and the right frame 2D of the storage shelf 2, and each bracket 17 is made of a synthetic resin that is fitted to the corresponding guide rail 15 so as to be slidable up and down. Shoes (sliding portions) 18A and 18B (see FIG. 9B) are respectively attached. The specific structure of the guide rail 15, the bracket 17, and the shoes 18A and 18B will be described in detail later.

  The shoes 18A, 18B of the bracket 17 are guided by the guide rail 15 so as to slide up and down, so that the storage shelf 2 is moved up and down to a lowered position D below the counter and an elevated position U above the counter. Become so.

  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. The left belt 22A is wound around the drum 21A from below and the inner end is locked, and the right belt 22B is wound around the other drum 21B from above and the inner end is locked. Yes.

  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 storage shelf 2. The right belt 22B is wound around the lower pulley 16B and the upper pulley 16A in order on the right side plate 14B, and the outer end thereof is locked to the bracket 17 of the right frame 2D of the storage shelf 2. It becomes like this. A specific locking structure of the outer end portion of each belt 22A, 22B will be described in detail later.

  Therefore, when the electric motor 20 rotates forward by pushing the raising switch 7a of the switch panel 7, the drums 21A and 21B are driven around the arrow a in FIG. 5, and the left and right belts 22A and 22B are As the left and right brackets 17 of the storage shelf 2 are pulled up by the left and right belts 22A and 22B, the shoes 18A and 18B of the bracket 17 are guided and raised by the guide rail 15 by being wound around the drums 21A and 21B. Thus, the storage shelf 2 is raised to the raised position U on the counter. When the storage shelf 2 is raised to the raised position U, the electric motor 20 is stopped, the brake is applied so as not to reverse, and the electric motor 20 is not rotated forward even if the raising switch 7a is further pushed. Controlled.

  By pushing the lowering switch 7c of the switch panel 7, the brake of the electric motor 20 is released, the left and right brackets 17 of the storage shelf 2 are guided by the guide rails 15, and the storage shelf 2 is lowered by its own weight. As a result, the storage shelf 2 is lowered to the lowered position D below the counter.

  In this case, the left and right belts 22A and 22B are rewound onto the drums 21A and 21B while the electric motor 20 is reversely rotated. However, the reverse rotation of the electric motor 20 prevents the storage rack 2 from being rapidly lowered by its own weight. It is set to brake. Note that when the lowering switch 7c is pushed, the storage shelf 2 is automatically lowered to the lowering position D below the counter, but is automatically lowered before the lowering position D (for example, about 50 mm). If the descent switch 7c is not continuously pushed, the safety can be improved if the descent switch 7c is not lowered (so-called two-stage push).

  Further, when the stop switch 7b of the switch panel 7 is pushed, the electric motor 20 is stopped, and the storage shelf 2 can be stopped at the midway position or the midway position.

  A control box 32 (see FIG. 4) is mounted on the bottom plate 14C of the storage space 14, and the control circuit of the control box 32 includes the electric motor 20, the switches 7a to 7c, and the notification / alarm units 7d. ˜7f etc. are connected.

  As shown in FIGS. 4 and 5, the bottom portion of the water receiving tray 10 of the storage shelf 2 is formed such that the central portion is recessed downward, and a drain port 10a is provided at the central portion of the bottom portion.

  A square box-shaped water receiving mass 26 having an open top is attached to the inner wall surface of the back plate 14D of the storage space 14, and an inlet end of a U-shaped drain trap 27 is connected to the lower portion of the water receiving mass 26. In addition, 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 14 a of the bottom plate 14 </ b> C of the storage space 14.

  Inclined water receptacles 30A and 30B are attached to the inner wall surface of the back plate 14D in a watertight state at substantially the same height as the water receptacle mass 26 attached to the inner wall surface of the back plate 14D of the storage space 14. The inclined lower sides of the water receiving troughs 30A and 30B are connected to the upper position of the water receiving mass 26. The water receiving basin 30 is positioned almost directly below the front side of the lift opening 5.

  One end 25a of the flexible drain pipe 25 is connected to the drain port 10a of the water receiving tray 10, and the other end 25b of the drain pipe 25 is connected to the end of the water receiving bowl 30A.

  As shown in detail in FIG. 9, the pair of guide rails 15 in the depth direction J are integrally formed at both end portions of the H-shaped base member 38 in a front view. The base member 38 is fixed to the inner surfaces of the left and right side plates 14A, 14B of the storage space 14 with screws using a plurality of screw holes 38a at both ends.

  As shown in detail in FIG. 10 and FIG. 11, the bracket 17 is formed in a substantially Ω shape in plan view, and has both end portions at the lower part of the left side frame 2C and the right side frame 2D of the storage shelf 2. Are fixed with mounting screws (not specifically shown) using the plurality of screw holes 17a.

  The shoes (sliding portions) 18A and 18B are formed in a rectangular shape that is long in the vertical direction, and two pieces are provided in the vertical direction with respect to the pair of guide rails 15 in the depth direction J. The shoe 18 </ b> B is fixed to the bracket 17 with a screw 39.

  A substantially L-shaped rattling adjustment fitting (pressing member) 41 is disposed on the back side of the bracket 17 where the front shoe 18A is located. The front shoe 18A has a large hole 17b in the bracket 17. The screw 39 to be inserted is fixed to the flat portion 41 a of the rattling adjustment fitting 41.

  In the rattling adjustment fitting 41, a long hole 41c in the depth direction J is formed in multiple stages (three stages in this example) in the vertical direction, and is fixed to the bracket 17 with a screw 42 that passes through the long hole 41c. Yes. When the screw 42 is loosened, the backlash adjustment fitting 41 is guided by the elongated hole 41c and can be adjusted in the depth direction J.

  Two pressing adjustment screws (pressing members) 43 are provided through the holes 17d from the outside of the side wall portion 17c of the bracket 17, and the pressing adjustment screws 43 are provided on the rising portion 41b of the shaki adjustment fitting 41. It is screwed into the female screw portion 41d. Further, a coil spring (spring member) 44 is mounted between the pressure adjusting screw 43 and the side wall portion 17c.

  Then, when the screw 42 of the rattling adjustment fitting 41 is loosened, the rattling adjustment fitting 41 is moved to the one side K (outside) in the depth direction J via the pressing adjustment screw 43 by the urging force of the coil spring 44 [Fig. 9b), whereby the shoes 18A and 18B come into contact with the corresponding guide rails 15 in the pressed state on one side K (outside) and the other side L (outside) in the depth direction J, respectively. It becomes like this. The ratchet adjustment fitting 41 is fixed to the bracket 17 by tightening the screw 42 in the pressed state of the shoes 18A, 18B. The shoes 18A and 18B can always be brought into contact with the guide rail 15 in a pressed state by the urging force of the coil spring 44 without fixing the rattling adjusting bracket 41 to the bracket 17 with the screw 42.

  A U-shaped hanging bracket 45 is fixed with a screw 46 at the center of the bracket 17 in the width direction. As shown in FIG. 12, loops of the belts 22A (22B) are formed from the upper slits 45a of the hanging bracket 45. The outer shape end 22 a is inserted into the hanging bracket 45.

  A position adjustment fitting 47 is disposed in the suspension fitting 45, and an inclination adjustment screw (adjustment member) 48 inserted into the female screw hole 47 a of the position adjustment fitting 47 from the lower hole 45 b of the suspension fitting 45 to the upper hole 45 c. Screwed. A retaining shaft 49 is inserted into the loop-shaped end portion 22a in a state where the loop-shaped outer end portion 22a of each belt 22A (22B) is inserted into the slit 47b formed in the position adjusting bracket 47. A retaining nut 50 is fitted into the upper end portion of the inclination adjusting screw 48.

  Then, in FIG. 12, when the tilt adjusting screw 48 is turned clockwise, the position adjusting bracket 47 is moved downward, the belt 22A (22B) is contracted downward (belt length is shortened), and the storage shelf. 2 goes up. When the tilt adjusting screw 48 is turned counterclockwise, the position adjusting bracket 47 is moved upward, the belt 22A (22B) is loosened upward (the belt length becomes longer), and the storage shelf 2 is lowered. become. That is, the inclination of the storage shelf 2 can be adjusted by adjusting the lengths of the belts 22A and 22B by turning the inclination adjusting screws 48 of the brackets 17 of the left side frame 2C and the right side frame 2D of the storage shelf 2. become.

  As shown in FIG. 13, the bracket 17 of the right side frame 2D of the storage shelf (moving body) 2, for example, has a variable resistor (volume) 55 with the operating shaft portion 55a facing the inner surface side of the right side plate 14B. It is attached with screws. As shown in detail in FIG. 14A, the variable resistor 55 is configured such that the operation shaft portion 55a can move in the left-right direction (that is, the direction orthogonal to the ascending / descending direction of the storage shelf 2). For example, the resistance is set to be minimum (the output voltage is maximum, for example, around 5V) at the right end position b in the same figure, and the resistance is set to be maximum (the output voltage is minimum, for example, around 0V) at the left end position c. ing. The reciprocating distance S2 of the operation shaft portion 55a is set to a length of about 30 mm, for example.

  The variable resistor 55 is connected to the control circuit of the control box 32 on the bottom plate 14C of the storage space 14 using a connector 55b.

  The variable resistor 55 is provided with a detection switch 57 for detecting the raising / lowering (moving) position of the storage shelf 2. The detection switch 57 is, for example, a photo interrupter (PI) having a light emitting part and a light receiving part. When the slit 57a between the light emitting part and the light receiving part is shielded by shielding plates 59A and 59B described later, the detection switch 57 is turned on (or OFF) signal is output. The detection switch 57 may be a limit switch.

  The variable resistor 55 is integrally provided with a protective wall 55 c surrounding a part of the periphery of the detection switch 57.

  As shown in detail in FIG. 15, on the inner surface of the right side plate 14 </ b> B of the storage space 14, a position in which the upper side of the storage shelf 2 is inclined upward, that is, with respect to the vertical direction of the guide rail 15. The detection rail 56 is attached with a screw 58. The position detection rail 56 is formed with a rail groove 56a (see FIG. 14C).

  The operation shaft portion 55 a of the variable resistor 55 is engaged with the rail groove 56 a of the position detection rail 56. The operation shaft portion 55a of the variable resistor 55 is guided by the rail groove 56a of the position detection rail 56 and moved to the right end position b (see FIG. 14A) at the raised position U of the storage shelf 2. At the lowered position D of the storage shelf 2, it is guided by the rail groove 56a of the position detection rail 56 and moves to the left end position c (see FIG. 14A).

  That is, as shown in FIGS. 16 (a) and 16 (b), for example, when the storage shelf 2 is raised to the raised position U at a height of 500 mm from the counter surface 1a, the operation shaft of the variable resistor 55 is operated. Since the portion 55a is located at the right end position b, the resistance is the minimum and the output voltage is the maximum 5V. Therefore, if the 5V output voltage is detected by the control circuit of the control box 32, the storage shelf 2 is at the raised position U. Position detection is possible. Further, when the storage shelf 2 is lowered to the lowered position D at a height of 0 mm from the counter surface, the operating shaft portion 55a of the variable resistor 55 is at the left end position c. Therefore, if the output voltage of 0V is detected by the control circuit of the control box 32, the position detection that the storage shelf 2 is in the lowered position U can be performed. Therefore, if the position where the output voltage is 5 V to 0 V is detected, it is possible to detect the height position (lifting position) where the storage shelf 2 is 500 mm to 0 mm.

  For example, when the voltage change value (mV) of the variable resistor 55 is detected every 10 ms, the voltage (ΔmV) and the elapsed time (Δms) at that time are calculated by the control circuit of the control box 32 (ΔmV / Δms). Thus, the lifting speed of the storage shelf 2 can be detected.

  As shown in FIG. 15B, the inner surface of the right side plate 14B of the storage space 14 can enter between the slit 57a of the detection switch 57 at the upper position and the lower position of the position detection rail 56. The upper limit shielding plate 59A and the lower limit shielding plate 59B are attached by using screw holes 59a that can finely adjust the vertical position.

  In the case of the floor cabinet 1 as described above, the storage shelf 2 installed in the lift opening 5 formed on the counter of the floor cabinet 1 is lowered to the storage space 14 below the counter when not in use, and on the counter when in use. It is suitable for an open-type facing kitchen where there is no wall between the kitchen and the dining room. If the storage shelf 2 is raised on the counter, the items stored in the storage shelf 2 are not bent. Can be put in and out.

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

  On the other hand, the variable resistor 55 is attached to the bracket 17 of the storage shelf 2 that moves up and down, and the operation shaft portion 55a of the variable resistor 55 is engaged with the rail groove 56a of the position detection rail 56, whereby the storage shelf 2 is moved up and down. Following this, the operation shaft portion 55a of the variable resistor 55 is moved in the left-right direction perpendicular to the ascending / descending direction of the storage shelf 2 by the rail groove 56a of the position detection rail 56, and the height position (elevating / lowering) Since the voltage corresponding to the position) is output, as described above, the elevation position and the elevation speed of the storage shelf 2 can be accurately detected from the output information of the variable resistor 55.

  Even if the lifting distance S1 of the storage shelf 2 (see FIG. 15B) is long (for example, 500 mm), the moving distance S2 of the operation shaft portion 55a of the variable resistor 55 is shortened by the inclination angle of the position detection rail 56. Since it can be set (for example, 30 mm), even the small and inexpensive variable resistor 55 can accurately detect the lift position of the storage shelf 2 having a long reciprocation distance.

  In addition, there is a method of counting the pulses of an encoder or the like as a means for detecting the position of the storage shelf 2 during raising and lowering. However, in this method, the origin is set because the initial position at the time of turning on the power is unknown. Need to be reset once. In addition, since there is a possibility of erroneous detection due to chattering at a pulse boundary or the like, a slide type variable resistor as in this embodiment is preferable. However, with a simple slide-type variable resistor, when the reciprocating distance is long (for example, 500 mm), the reciprocating distance of the operation shaft portion of the variable resistor also needs to have a corresponding length (for example, 500 mm). Therefore, it becomes a large and expensive variable resistor, which is practically impossible.

  Furthermore, although the raising / lowering position etc. of the storage shelf 2 can also be detected from the output information of the variable resistor 55, the upper limit shielding plate 59A is provided between the slits 57a of the detection switch 57 by providing a separate detection switch 57 in the storage shelf 2. When the lower limit shielding plate 59B enters the slit 57a of the detection switch 57, the lower limit position of the storage shelf 2 is lowered. By determining that the electric motor 20 is stopped, the start end position and the end position can be detected with high accuracy. If a shielding plate is added at an appropriate midway position between the upper limit shielding plate 59A and the lower limit shielding plate 59B, the midway position can also be detected with high accuracy.

  Further, since the detection switch 57 is attached to the variable resistor 55, the attachment cost and the installation space can be made efficient.

  Furthermore, the raising / lowering position of the storage shelf 2 can be controlled by detecting the raising / lowering position and the raising / lowering speed of the storage shelf 2 by the control circuit of the control box 32. Further, when the foreign matter is caught in the storage shelf 2, the lowering speed of the storage shelf 2 is rapidly reduced. Therefore, it is determined that the foreign matter is caught in the storage shelf 2 by comparing with the normal lowering speed. (Lock detection) The electric motor 20 can be stopped urgently. Furthermore, since the load applied to the electric motor 20 differs depending on the weight of the tableware stored in the storage shelf 2, if the weight of the tableware is heavy (for example, 30Kg), the lowering time becomes faster as the rising time becomes slower, If the weight of the tableware is light (for example, 0 kg when no tableware is stored), the rising time and the falling time are both fast. Therefore, the control circuit of the control box 32 determines the current lifting speed of the storage shelf 2 in advance. By comparing with the set lifting speed, the lifting speed of the storage shelf 2 can be maintained constant by increasing or decreasing the output of the electric motor 20 by feedback control or the like.

  Also, the control circuit of the control box 32 does not match the output information of the variable resistor 55 and the output information of the detection switch 57. For example, the output information (voltage) of the variable resistor 55 is 5V, and the storage shelf 2 is in the raised position. The output information of the detection switch 57 is output information [ON (or OFF) even though the upper limit shielding plate 59A is inserted between the slits 57a of the detection switch 57, even though the position is detected as U. ], It can be determined that the detection switch 57 is faulty (abnormal). Conversely, the output information of the detection switch 57 includes the upper limit shielding plate 59A between the slits 57a of the detection switch 57, so that the variable resistor 55 is present despite the output information [ON (or OFF)]. When the output information (voltage) is 2V, it can be determined that the variable resistor 55 is faulty (abnormal).

  In addition, since the variable resistor 55 is provided with the protective wall 55c, the protective switch 55 can protect the detection switch 57 from external impact, and when the detection switch 57 is a photo interrupter (PI), it can cut out disturbance light. Become.

  In the above embodiment, the draining shelf which is one of the storage shelves 2 is taken as an example of the lifting storage device of the floor cabinet 1, but the present invention is not limited to this, and the dish dryer or the dishwasher is used. It may be.

  Moreover, although the said embodiment took the storage shelf 2 of the floor cabinet 1 for kitchens as an example of a moving body, a reciprocating movement distance of a moving body is the present invention, such as a slide door or a slide curtain (curtain). Even if it is long, it can be widely applied to other technical fields in which the reciprocating distance of the operation shaft portion 55a of the variable resistor 55 is desired to be set short.

It is a floor cabinet for kitchens showing an embodiment of the present invention, and a storage shelf is a perspective view of a lowered position. FIG. 2 is a perspective view of the floor cabinet of FIG. 1 with the storage shelf in the raised position. It is a front view of a switch panel. It is the perspective view which looked at the raising / lowering storage apparatus from the dining / living side. It is the rear view which looked at the raising / lowering storage apparatus from the dining / living side. It is a top view of the raising / lowering storage apparatus which abbreviate | omitted the storage shelf. It is a principal part sectional side view of a raising / lowering storage apparatus. It is a perspective view of the storage shelf which abbreviate | omitted the top plate. The guide rail and the base member, (a) is a perspective view, (b) is a plan sectional view in which a shoe or the like is assembled, and (c) is a plan sectional view of the guide rail. (A) is a perspective view of the bracket seen from the shoe side, (b) is an exploded perspective view of (a). (A) is a perspective view of the bracket seen from the suspension metal fitting side, (b) is an exploded perspective view of (a). It is a hanging metal fitting, (a) is a perspective view, (b) is sectional drawing. It is a perspective view of the bracket which attached the variable resistor. (A) is a perspective view of a variable resistor, (b) is a perspective view of a shielding plate, and (c) is a sectional view of a position detection rail. They are a guide rail and a position detection rail, (a) is a plan view, (b) is a front view, and (c) is a main part enlarged view of (a). (A) is a circuit diagram of a variable resistor, (b) is a graph of the relationship between the height of a storage shelf and a voltage.

Explanation of symbols

1 Kitchen floor cabinet 1a Counter 2 Storage shelf (moving body)
5 Lifting opening 6 Lifting mechanism 14 Storage space 15 Guide rail 17 Bracket 32 Control box (control circuit)
55 Variable resistor 55a Operation shaft portion 55c Protective wall 56 Position detection rail 56a Rail groove 57 Detection switch

Claims (7)

  A variable resistor having an operation shaft that can reciprocate in a direction orthogonal to the moving direction of the moving body is attached to the reciprocating moving body, and the position detection rail is inclined with respect to the moving direction of the moving body. The operation shaft portion of the variable resistor is engaged with the rail groove of the position detection rail so that the movement of the movable body follows the variable resistor. A moving position detecting device characterized in that the operating shaft portion is moved.   The movement position detection apparatus according to claim 1, further comprising a detection switch that detects a movement position or the like of the moving body.   The moving position detection device according to claim 2, wherein the detection switch is attached to the variable resistor.   The movement position detection device according to any one of claims 1 to 3, further comprising a control circuit that detects a movement position and a movement speed of the moving body from output information of the variable resistor.   5. The moving position detection device according to claim 2, further comprising a control circuit that detects abnormality of the variable resistor and the detection switch from output information of the variable resistor and the detection switch. .   The moving position detection device according to any one of claims 3 to 5, wherein a protective wall of the detection switch is provided in the variable resistor.   The moving body includes a storage shelf disposed in a lifting opening formed in a part of a counter of a kitchen floor cabinet, and a lifting mechanism that lowers the storage shelf to a storage space under the counter and raises it on the counter It is the said storage shelf in the raising / lowering storage apparatus provided with these. The movement position detection apparatus as described in any one of Claims 1-6 characterized by the above-mentioned.

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