WO2006115000A1

WO2006115000A1 - Movement position detection device and lifting-type storage device

Info

Publication number: WO2006115000A1
Application number: PCT/JP2006/307210
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: 2005-04-18
Filing date: 2006-04-05
Publication date: 2006-11-02

Abstract

A movement position detection device for detecting the position of movement of a reciprocating movable body has an operation shaft capable of reciprocating, while being attached to the movable body, in the direction substantially orthogonal to the direction of movement of the movable body; a variable resistor whose resistance varies according to the position of the operation shaft; and a position detecting rail extending in the direction in which the operation shaft reciprocates, the position detecting rail inclining relative to the direction of movement of the movable body. The operation shaft of the variable resistor engages with the position detecting rail and moves in the direction substantially orthogonal to the direction of the movement of the movable body as the operation shaft moves along the position detecting rail when the movable body moves.

Description

Specification

Moving position detection device and elevating storage device

Technical field

[0001] The present invention relates to a moving position detecting device and an elevating storage device.

Background art

[0002] Generally, as a reciprocating moving body, for example, a lowering position that is disposed in a lifting opening formed in a part of a counter of a kitchen floor cabinet and is stored in a storage space under a counter. There is a storage shelf that moves up and down between the raised position on the counter.

[0003] Conventionally, kitchen floor cabinets have a storage section under the counter, so in order to put in and out the storage items (dish, pots, seasonings, etc.), the cooking operation etc. was temporarily interrupted and bent. There was a need to put in and out the storage from the storage section.

[0004] For this reason, there is a storage section 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).

[0005] However, the liftable storage device as in Patent Documents 1 and 2 has 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.

[0006] In addition, there is a problem that it is difficult to install a lifting storage device in an open-type facing kitchen where there is no wall between the kitchen and the dining room because there is no wall to be installed.

[0007] Therefore, the present applicant is suitable for an open-type facing kitchen, and is placed in a lift opening formed in a part of a counter of a kitchen floor cabinet in order to take in and out stored items. Elevating type storage comprising a storage shelf (draining shelf) and an elevating mechanism for raising and lowering the storage shelf (draining shelf) between a lowered position where it is stored in the storage space under the counter and an elevated position where it protrudes above the counter A device was proposed.

[0008] A storage shelf having a long reciprocation distance in a lifting storage device or the like according to the applicant's proposal

There has been a demand to accurately detect the moving position of the (moving body).

Patent Document 1: Japanese Unexamined Patent Publication No. 2000-316643 Patent Document 2: Japanese Patent Laid-Open No. 2001-149297

Disclosure of the invention

[0009] The present invention has been made in order to meet the above-mentioned demand, and a moving position detecting device capable of accurately detecting a moving position of a moving body having a long reciprocating distance with a small and inexpensive variable resistor, and It is an object of the present invention to provide an elevating storage device provided with this moving position detection device.

[0010] In order to solve the above-described problem, the moving position detection device of the present invention is a device that detects the moving position of a moving body that reciprocates, and the movement of the moving body while attached to the moving body. A variable resistor whose resistance changes according to the position of the operation shaft portion, and the operation shaft portion with respect to the moving direction of the movable body. A position detection rail extending in a reciprocating direction, and an operation shaft portion of the variable resistor is engaged with the position detection rail, and the position detection is performed when the movable body moves. By moving along the rail, the moving body moves in a direction substantially orthogonal to the moving direction. Brief Description of Drawings

FIG. 1 is a perspective view of a liftable storage device when a storage shelf is located at a lowered position.

FIG. 2 is a perspective view of the elevating storage device when the storage shelf is located at the raised position.

FIG. 3 is a front view of the switch panel.

[FIG. 4] FIG. 4 is a perspective view of the elevating storage device as seen from the dining 'living side force'.

[FIG. 5] FIG. 5 is a rear view of the elevating storage device with a view to the dining 'living side force'.

[Fig. 6] Fig. 6 is a plan view of the elevating storage device in which the storage shelf is omitted.

[Fig. 7] Fig. 7 is a cross-sectional side view of an essential part of the elevating storage device.

FIG. 8 is a perspective view of a storage shelf with the top plate omitted.

[Fig. 9] Fig. 9 (a) is a perspective view of the guide rail and the base member, Fig. 9 (b) is a plan sectional view of the guide rail and the base member when the shoe is assembled, and Fig. 9 ( c) is a plan sectional view of the guide rail and the base member.

[Fig. 10] Fig. 10 (a) is a perspective view of the bracket also showing the shear side force, and Fig. 10 (b) is an exploded perspective view of Fig. 10 (a). [Fig. 11] Fig. 11 (a) is a perspective view of the bracket as seen from the suspension fitting side, and Fig. 11 (b) is an exploded perspective view of Fig. 11 (a).

[FIG. 12] FIG. 12 (a) is a perspective view of a suspension fitting, and FIG. 12 (b) is a cross-sectional view of the suspension fitting.

FIG. 13 is a perspective view showing the relationship between the protrusion of the storage shelf and the locking portion for preventing the drop of the bracket.

FIG. 14 is a perspective view of a bracket to which a variable resistor is attached.

FIG. 15 (a) is a perspective view of a variable resistor, FIG. 15 (b) is a perspective view of a shielding plate, and FIG. 15 (c) is a cross-sectional view of a position detection rail.

[Fig.16] Fig. 16 (a) is a plan view of the guide rail and position detection rail, Fig. 16 (b) is a front view of the guide rail and position detection rail, and Fig. 16 (c) is Fig. 16 ( It is a principal part enlarged view of a).

[FIG. 17] FIG. 17 (a) is a circuit diagram of the variable resistor, and FIG. 17 (b) is a graph of the relationship between the height of the storage rack and the voltage.

FIG. 18 is a perspective view of a lifting mechanism according to a modification.

BEST MODE FOR CARRYING OUT THE INVENTION

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

FIG. 1 and FIG. 2 are diagrams showing an ascending / descending storage apparatus in which a moving position detection apparatus according to an embodiment of the present invention is incorporated. FIG. 1 shows a storage shelf (moving body) 2 at a lowered position. FIG. 2 is a perspective view when the storage shelf 2 is located at the raised position (when in use) U (when not in use). This lifting storage device includes a kitchen floor cabinet (housing) 1.

[0014] In the present embodiment, force indicating a form in which the floor cabinet 1 is applied to an oven-type facing kitchen having no wall surface between the kitchen and the dining 'living room. The floor cabinet 1 is an open-type facing kitchen. It can be applied to other kitchens.

[0015] The floor cabinet 1 includes a rectangular plate-shaped counter la extending in the left-right direction, and a sink 3 provided at the right side of the counter la. The storage shelf 2 is disposed behind the sink 3. Note that the storage shelf 2 Can also be arranged. Here, the left-right and front-back directions are expressed as if the person saw the dining room standing in front of the sink 3 and facing the living room!

[0016] The storage shelf 2 is disposed in an elevation opening 5 formed in the counter la. The storage shelf 2 is moved up and down between a lowered position D stored in the storage space 14 under the counter and a raised position U protruding on the counter by an elevator mechanism 6 described later. As shown in FIG. 2, the peripheral edge of the lifting opening 5 is covered with a cover frame 8 having a horizontally long rectangular frame shape.

The storage shelf 2 has upper and lower two-stage draining portions 2 a and 2 b for draining dishes and a top plate counter 4 constituting the upper surface of the storage shelf 2.

[0018] As shown in Fig. 1, the top counter 4 of the storage shelf 2 covers the lifting opening 5 together with the cover frame 8 at a lowered position D, and separates a slight gap from the upper surface of the counter la. Therefore, the top of the counter 4 can be used as a counter space (work space).

A switch panel 7 for moving the storage shelf 2 up and down is attached to the right side of the front surface of the top counter 4. As shown in detail in FIG. 3, the switch panel 7 is provided with an up switch 7a, a stop switch 7b, a down switch 7c, a lock switch 7d, and a flashing lamp, a speaker, etc. Information on foreign object pinching, overloading, etc. · Alarm notification · Alarm units 7e and 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 includes four horizontally-long rectangular upper frames 2A and 2B extending in the left-right direction or the front-rear direction, and two vertically-long rectangular left-side frames 2C and 2D extending in the vertical direction. It is integrally assembled by welding or the like in a horizontally long rectangular frame shape. In addition, a water receiving tray 10 (see FIG. 5) is attached to the lower part of the lower frame 2B.

[0021] On the rear side (dining 'living side) of the space surrounded by the upper frame 2A, the lower frame 2B, the left side frame 2C, and the right side frame 2D, a decorative board 11 covers each frame. Installed on. Further, decorative plates 12a to 12c are respectively attached to the left side frame 2C, the right side frame 2D, and the upper frame 2A. In addition, if the decorative board 11 has translucency, the dining 'living side's light in the storage shelf 2 Can be brightened.

[0022] Further, a ventilation fan 35 is provided on the decorative plate 12c attached to the upper frame 2A. The ventilation fan 35 is for discharging the air in the storage space 14 to the outside when the storage shelf 2 is in the lowered position D. The ventilation fan 35 includes a humidity sensor (see FIG. (Not shown) is installed, and is driven when the humidity exceeds a predetermined value.

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 opening 5 for raising and lowering. The left and right side plates 14A, 14B and the bottom plate 14C are also surrounded by a substantially U-shaped downward force and open upward. The sink 3 side surface formed by 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 so as to be opened and closed.

[0024] On the bottom plate 14C of the storage space 14, a control box 32 (see FIG. 4) in which a control circuit is incorporated is attached. The control circuit of the control box 32 is connected to the switches 7a to 7d of the switch panel 7, the alarming alarm units 7e and 7f, the electric motor 20 described later, and the like.

In the storage space 14, a lifting mechanism 6 for the storage shelf 2 and the like are stored. The raising / lowering mechanism 6 winds the belt 22A, 22B connected to the left side position and the right side position of the storage shelf 2 around the drums 21A, 21B below the storage shelf 2 so that the storage shelf 2 is belt 22A, 22B, The storage rack 2 is lowered by its own weight by lifting the belt 22A and raising the belt 22A and returning the belt 22A by the drum 21A and 21B force.

Specifically, a pair of front and rear guide rails 15 extending in the vertical direction are fixed to the inner surfaces of the left and right side plates 14A and 14B of the storage space 14, respectively. The upper pulley 16A and the lower pulley 16B are fixed to the inner surfaces of the left and right side plates 14A and 14B located between the pair of guide rails 15 corresponding to the upper and lower ends of the guide rails 15, respectively. It has been.

[0027] Brackets 17 are fixed to lower portions of the left frame 2C and the right frame 2D of the storage shelf 2, respectively. Each bracket 17 is connected to the corresponding guide rail 15 above. Synthetic resin slides (sliding parts) 18A and 18B (see Fig. 9 (b)) that are fitted slidably below are attached. The specific structures of the guide rail 15, the bracket 17, and the shrouds 18A and 18B will be described later in detail.

[0028] Then, the shelves 18A and 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 between the lowered position D below the counter and the raised position U above the counter. It can be moved up and down.

[0029] As shown in FIG. 6, the bottom plate 14C of the storage space 14 has two pieces at a position corresponding to the approximate center of the storage shelf 2 in the front-rear and left-right directions (position where the two-dot chain line in the figure intersects). Drums 21A and 21B are arranged in series in the front-rear direction. An electric motor 20 that rotates the drums 21A and 21B via a chain 21a is arranged in parallel with the drums 21A and 21B, right next to the drums 21A and 21B.

[0030] The left belt 22A is wound around one drum 21A from below and the inner end is locked, and the right belt 22B is wound around the other drum 21B with an upward force. The end is locked.

[0031] 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 engaged with a bracket 17 of the left frame 2C of the storage shelf 2. Has been. On the other hand, the right belt 22B is wound around the lower pulley 16B and the upper pulley 16A in order of the right side plate 14B, and the outer end thereof is engaged with the bracket 17 of the right frame 2D of the storage shelf 2. It has been stopped. The specific locking structure of the outer end portion of each belt 22A, 22B will be described in detail later.

[0032] Therefore, when the ascending switch 7a of the switch panel 7 is pushed and the electric motor 20 rotates in the forward direction, the drums 21A and 21B are driven around the arrow a in FIG. 5, and the left and right belts 22A and 22B are driven. Is wound around the drums 21A and 21B, the left and right brackets 17 of the storage shelf 2 are pulled up by the left and right belts 22A and 22B, and the guide rails 15 guide the brackets 18A and 18B. As it is raised, the storage shelf 2 is raised to the rising position U on the counter. When the storage shelf 2 is raised to the raised position U, the electric motor 20 is stopped and brakes are applied so as not to reverse, and the electric motor 20 is not rotated forward even if the raising switch 7a is further pushed. Control Is done.

[0033] When the lower switch 7c of the switch panel 7 is pushed to release the brake of the electric motor 20, the shrouds 18A and 18B of the left and right brackets 17 of the storage rack 2 are guided by the guide rail 15. However, the storage shelf 2 is lowered by its own weight. In this case, while rotating the electric motor 20, the left and right belts 22A, 22B also rewind the drums 21A, 21B, but the rotation speed of the electric motor 20 at the time of the reverse rotation is abrupt because of the weight of the storage shelf 2. It is set to brake storage shelf 2 so that it does not fall down!

[0034] The lowering of the storage shelf 2 is temporarily stopped by the control circuit of the control box 32 when the storage shelf 2 is lowered to a position before the lowered position D (for example, about 50 mm). Note that the arrival of the storage shelf 2 at the temporary stop position can also detect, for example, a sensor provided in the storage space 14 or a motor rotational speed equal force of the electric motor 20. Then, after the storage shelf 2 is temporarily stopped, the downward movement switch 7c is continuously pushed again (so-called two-stage pressing), so that the storage shelf 2 is further lowered to the lower position D by being further lowered. become. Even if the lower switch 7c is continuously pressed while the storage shelf 2 is above the pause position, the storage shelf 2 is always stopped at the pause position. In addition, when the operation of continuously pressing the lowering switch 7c is interrupted while the storage shelf 2 is descending from the temporary stop position toward the lowering position D, the downward movement of the storage shelf 2 is immediately stopped.

[0035] Further, when the stop switch 7b of the switch panel 7 is pushed while the storage shelf 2 is being raised or lowered, the electric motor 20 is stopped and the storage shelf 2 is being raised or lowered. It can be stopped at an intermediate position.

[0036] Further, if the push operation is continued for a set time (for example, 3 seconds) of the switch switch 7d of the switch panel 7, the upper alarm / alarm unit 7e is turned on to be locked, and each switch 7a to 7c Even if the button is pressed, the operation becomes invalid. On the other hand, if the lock switch 7d is pushed for a set time while the alarm / alarm unit 7e is lit, the alarm / alarm unit 7e is turned off and the locked state is released.

On the other hand, as shown in FIGS. 4 and 5, the water receiving tray 10 of the storage shelf 2 is formed such that the central portion of the bottom portion is depressed downward, and the central portion of the bottom portion of the water receiving tray 10 is formed. Is There is a drain 10a!

[0038] On the inner wall surface of the back plate 14D of the storage space 14, a square box-shaped water receiving mass 26 having an open top is attached. An inlet end of a U-shaped drain trap 27 is connected to the lower portion of the water receiving mass 26, and 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 of the bottom plate 14C of the storage space 14.

[0039] On the inner wall surface of the back plate 14D of the storage space 14, a water receiving bowl inclined upward from the water receiving mass 26 on both sides of the water receiving mass 26 at the same height as the water receiving mass 26. 30A and 3OB are attached to the inner wall of the back plate 14D in a watertight manner. These water receiving basins 30A, 3OB are located almost directly below the front side of the lifting opening 5, and the lower end of the tilt is connected to the upper part of the water receiving mass 26.

[0040] One end 25a of a 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 an upper end of the water receiving bowl 30A. Connected to the department!

[0041] Next, the guide rail 15, the bracket 17, the shrouds 18A and 18B, and a specific locking structure of the outer ends of the belts 22A and 22B will be described in detail.

[0042] As shown in detail in Fig. 9 (a), Fig. 9 (b), and Fig. 9 (c), the pair of front and rear guide rails 15 spaced apart in the depth direction J are H-shaped in front view. The base member 38 is integrally formed at both end portions. The base member 38 is fixed to the inner surfaces of the left and right side plates 14A and 14B of the storage space 14 with screws using a plurality of screw holes 38a provided at both ends.

[0043] As shown in detail in Fig. 10 (a) and Fig. 10 (b), Fig. 11 (a) and Fig. 11 (b), the bracket 17 is formed in a substantially Ω-shape in plan view. The side wall portion 17c connects the center portion having the step and the both end portions in the left-right direction orthogonal to the depth direction J. The bracket 17 uses a plurality of screw holes 17a provided at both ends, as shown in FIG. 13, at the lower part of the left frame 2C and the right frame 2D of the storage shelf 2. Secure with mounting screws 40!

[0044] The shaws (sliding portions) 18A, 18B are formed in a rectangular shape that is long in the vertical direction, and the front With respect to the rear pair of guide rails 15, two are provided on the upper and lower sides respectively. The shoe 18B on the front side (right side in 9 (b), left side in FIGS. 10 (a) and 10 (a), right side in FIGS. 11 (a) and 11 (b)) is fixed to the bracket 17 with screws 39. Has been.

On the other hand, the rear side that is the inspection door 14E side (left side in 9 (b), right side in FIGS. 10 (a) and 10 (a), left side in FIGS. 11 (a) and 11 (b) A backlash adjustment fitting (pressing member) 41 is disposed on the back surface side of the bracket 17 where the shoe 18A is located. The rattling adjustment fitting 41 has a flat surface portion 41a and a rising portion 41b, and has a substantially L shape in a plan view. The rear shoe 18A is fixed to the flat portion 41a of the rattling adjustment fitting 41 with a screw 39 that passes through a large hole 17b provided in the bracket 17.

[0046] The flat portion 41a of the rattle adjustment fitting 41 is formed with a plurality of elongated holes 41c extending in the front-rear direction (depth direction J) in the vertical direction (three steps in this example). The adjustment fitting 41 is fixed to the bracket 17 with a screw 42 that passes through the elongated hole 41c. When the screw 42 is loosened, the screw 42 is guided by the long hole 41c, and the position of the backlash adjustment fitting 41 can be adjusted in the front-rear direction.

[0047] The side wall 17c of the bracket 17 is provided with two holes 17d at the top and bottom, and two pressing adjustment screws (pressing members) 43 are inserted into the holes 17d from the outside. . The pressing pressure adjusting screw 43 is screwed into a female screw portion 41d provided on the rising portion 41b of the rattle adjusting fitting 41. A coil spring (spring member) 44 is mounted between the pressure adjusting screw 43 and the side wall portion 17c.

[0048] Then, when the screw 42 for fixing the rattling adjustment fitting 41 is loosened, the rattling adjustment fitting 41 is moved backward via the pressing adjustment screw 43 by the urging force of the coil spring 44 (see Fig. 9 (b ) So that the shrouds 18A and 18B come into contact with the corresponding guide rails 15 in the front-rear direction (see arrows K and L in Fig. 9 (b)) in a pressed state. Become. The screws 42 are tightened in the pressed state of the shoes 18A and 18B, and the rattling adjustment fitting 41 is fixed to the bracket 17. In addition, the shackle adjustment metal fitting 41 may not be fixed to the bracket 17 with the screw 42, but the shrouds 18A and 18B may always come into contact with the guide rail 15 in a pressed state by the urging force of the coil spring 44.

[0049] At the central position in the width direction of the bracket 17, there is a substantially Ω-shaped hanging bracket 45 in side view. Is fixed with screws 46. As shown in FIGS. 12 (a) and 12 (b), the hanging bracket 45 has an upper slit 45a, and a lower hole 45b and an upper hole 45c provided at a position penetrating the hanging bracket 45. Yes. The loop-like outer end portion 22a of each belt 22A (22B) enters the suspension fitting 45 through the upper slit 45a.

A position adjusting bracket 47 is disposed in the hanging bracket 45. The position adjustment fitting 47 is provided with a female screw hole 47a, and an inclination adjustment screw (adjustment member) 48 that passes from the lower hole 45b of the suspension fitting 45 to the upper hole 45c is 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 passed through the slit 47b formed in the position adjusting bracket 47. . It should be noted that a push-off push nut 50 is fitted into the upper end portion of the tilt adjusting screw 48.

[0051] Then, in FIGS. 12 (a) and 12 (b), when the tilt adjusting screw 48 is turned clockwise, the position adjusting bracket 47 is moved downward, and the belt 22A (22B) is moved inside the hanging bracket 45. Is pulled into (the belt length is shortened), and the storage shelf 2 is raised. Further, when the tilt adjusting screw 48 is turned counterclockwise, the position adjusting bracket 47 moves upward, and the belt 22A (22B) is sent out from the hanging bracket 45 (the belt length becomes longer). It comes down. 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 bracket 17 of the left side frame 2C and the right side frame 2D of the storage shelf 2. I will become.

[0052] As shown in Fig. 13, the upper end of the bracket 17 is provided with a drop-preventing engagement mechanism capable of abutting a projection 51 screwed to the left frame 2C and the right frame 2D of the storage shelf 2. A stop 17e is formed.

As shown in FIG. 14, the bracket 17 attached to, for example, the right side frame 2D of the storage shelf 2 has a variable resistor (volume) with the operation shaft portion 55a facing the inner surface side of the right side plate 14B. ) 55 is attached with screws. As shown in detail in FIG. 15 (a), the variable resistor 55 has the operation shaft portion 55a in the front-rear direction parallel to the horizontal direction (that is, the direction orthogonal to the ascending / descending direction of the storage shelf 2). For example, at the rear end position b in the figure, the resistance is minimum (the output voltage is maximum… for example, around 5V), and at the front end position c, the resistance is maximum (the output voltage is minimum) For example, near OV)! 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 disposed on the bottom plate 14C of the storage space 14 using a connector 55b.

[0055] The variable resistor 55 is provided with a detection switch 57 for detecting the raising / lowering (moving) position or the like 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, and shielding plates 59A and 59B described later enter into a slit 57a between the light emitting part and the light receiving part. When the space between the light emitting unit and the light receiving unit is blocked, an on (or off) signal is output. The detection switch 57 may be a limit switch.

[0056] The variable resistor 55 is provided with a protective wall 55c that surrounds a part of the periphery of the detection switch 57 and protects the detection switch 57.

[0057] As shown in detail in Fig. 16 (a), Fig. 16 (b), and Fig. 16 (c), on the inner surface of the right side plate 14B of the storage space 14, there is an up-and-down direction of the storage shelf 2, that is, A position detection rail 56 whose upper side is inclined rearward with respect to the upper and lower direction of the guide rail 15 is attached with a screw 58. The position detection rail 56 has a rail groove 56a (see FIG. 15C).

[0058] The operation shaft portion 55a of the variable resistor 55 is engaged with the rail groove 56a of the position detection rail 56. The operation shaft portion 55a of the variable resistor 55 is moved along the rail groove 56a following the elevation of the storage shelf 2 by engaging with the rail groove 56a. When it is raised to U, it is guided by the rail groove 56a of the position detection rail 56 and moved to the rear end position b (see Fig. 15 (a)), while the storage shelf 2 is lowered to the lowered position D. It is guided by the rail groove 56a of the position detection rail 56 and moves to the front end position c (see FIG. 15 (a)).

That is, as shown in FIG. 17 (a) and FIG. 17 (b), for example, when the storage shelf 2 is located at the rising position U at a height of 500 mm from the counter surface la, it is variable. Since the operation shaft 55a of the resistor 55 is located at the rear end position b, the resistance is minimum and the output voltage is 5V, which is the maximum, so if the 5V output voltage is detected by the control circuit of the control box 32, the storage shelf 2 The position can be detected that is at the rising position U. In addition, the storage shelf 2 has a counter force of Omm. When the control shaft 55a of the variable resistor 55 is at the front end position c, the resistance is the maximum and the output voltage is the minimum (the original voltage is OV. If the output voltage is detected by the control circuit of the control box 32, it is possible to detect the position that the storage shelf 2 is in the lowered position U. Therefore, if the output voltage is detected from 5V to OV, It becomes possible to detect the height position (lifting position) of the storage shelf 2 from 500 mm to Omm.

[0060] Further, for example, if the voltage change value (mV) of the variable resistor 55 is detected every 10 ms, the voltage (Δ mV) and the elapsed time (Δ ms) at that time are calculated by the control circuit of the control box 32. (Δ mV / Δ ms), the lifting speed of the storage shelf 2 can be detected.

[0061] On the inner surface of the right side plate 14B of the storage space 14, as shown in FIG. 16 (b), the detection switch 57 is located at a position corresponding to the upper part position and the lower position of the position detection rail 56. An upper limit shielding plate 59A and a lower limit shielding plate 59B that can enter between the slits 57a are attached using screw holes 59a that can be finely adjusted in the vertical position.

[0062] In the case of the liftable storage device as described above, the storage shelf 2 installed in the lift opening 5 formed in the counter la of the floor cabinet 1 is lowered in the storage space 14 under the counter when not in use. It is suitable for open face-to-face kitchens where there is no wall between the kitchen and dining room, and storage shelf 2 is placed on the counter. If you raise it, you will be able to move in and out of the storage shelf 2 without bending.

[0063] Further, since the storage shelf 2 is merely raised to the raised position, it is easy to take in and out stored items such as tableware at any stage of the storage shelf 2, and the storage shelf 2 is lowered to the lowered position. 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.

[0064] 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, the operation shaft portion 55a of the variable resistor 55 is moved in the longitudinal direction perpendicular to the lifting / lowering direction of the storage shelf 2 by the rail groove 56a of the position detection rail 56, so that the height of the storage shelf 2 is increased. Since the voltage corresponding to the position (elevated position) is output, as described above, this The output information power of the variable resistor 55 can accurately detect the lifting position and the lifting speed of the storage shelf 2.

[0065] Even if the lifting distance S1 of the storage shelf 2 (see Fig. 15 (b)) is long (for example, 500 mm), the moving distance of the operation shaft portion 55a of the variable resistor 55 depends on the inclination angle of the position detection rail 56. Since S2 can be set short (for example, 30 mm), even the small and inexpensive variable resistor 55 has a long reciprocating lift distance and can accurately detect the lift position of the storage shelf 2 and the like.

[0066] As a means for detecting the position where the storage shelf 2 is being moved up and down, there is a method of counting pulses from the encoder etc. In this method, the initial position at the time of power-on or the like has no component force. It is necessary to set the origin and reset once. Further, 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, if the reciprocating distance is long (for example, 500 mm), the reciprocating distance of the variable resistor's operating shaft must also have a one-to-one corresponding length (for example, 500 mm). Therefore, it becomes a large and expensive variable resistor, which is practically impossible.

[0067] Further, the lift position of the storage shelf 2 can also detect the output information force of the variable resistor 55, but by providing a separate detection switch 57 on the storage shelf 2, the upper limit is provided between the slits 57a of the detection switch 57. When the shielding plate 59A enters, it is determined that the upper limit position of the storage shelf 2 is reached, the electric motor 20 is stopped, and when the lower limit shielding plate 59B enters between the slits 57a of the detection switch 57, the storage shelf 2 By determining that the lower limit position is lower and stopping the electric motor 20, the start position and the end position can be detected with high accuracy. In addition, 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 be detected with high accuracy.

[0068] Since the detection switch 57 is attached to the variable resistor 55, the installation cost and the installation space can be improved.

[0069] Further, the lifting position of the storage shelf 2 can be controlled by detecting the lifting position and the lifting speed of the storage shelf 2 by the control circuit of the control box 32. In addition, when a foreign object is caught in the storage shelf 2, the descending speed of the storage shelf 2 decreases rapidly, so it is determined that a foreign object is caught in the storage shelf 2 by comparing with the normal descending speed. (Lock detection) The moving 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, 300N), the lowering time becomes faster and the lowering time becomes faster. When the weight of the tableware is light (for example, when the tableware is stored, and ON), the rising time and the falling time are faster! / The shift is faster, so the control circuit of the control box 32 allows the storage shelf 2 to By comparing the current lifting speed with a preset lifting speed, the output of the electric motor 20 can be increased or decreased by feedback control or the like, so that the lifting speed of the storage shelf 2 can be maintained constant.

[0070] Also, the output information of the variable resistor 55 does not match the output information of the detection switch 57 by the control circuit of the control box 32. For example, the output information (voltage) of the variable resistor 55 is 5V. When 2 is in the raised position U, the output information of the detection switch 57 is detected by the upper limit shielding plate 59A entering the slit 57a of the detection switch 57, regardless of whether the position is detected. However, when there is no output information [ON (or OFF)], it can be determined that the detection switch 57 is faulty (abnormal). On the other hand, the output information of the detection switch 57 is variable resistance even though the upper limit shielding plate 59A is inserted between the slit 57a of the detection switch 57, even though the output information [ON (or OFF)] exists. When the output information (voltage) of the resistor 55 is 2V, it can be determined that the variable resistor 55 is faulty (abnormal).

[0071] Furthermore, since the protective wall 55c is provided on the variable resistor 55, the protective switch 55 can protect the detection switch 57 from external impacts. When the detection switch 57 is a photointerrupter (PI), the ambient light is not emitted. Can be cut.

[0072] Further, since the shrouds 18A and 18B of the bracket 17 of the storage shelf 2 are in contact with the guide rail 15 in a pressed state, the clearance between the shrouds 18A and 18B and the guide rail 15 is reduced. The storage shelf 2 will rise and fall smoothly as it is less likely to rattle when it is raised and lowered.

[0073] In particular, when the shears 18A and 18B are pressed against the guide rail 15 by the urging force of the coil spring 44, the shears 18A and 18B come into contact with the guide rail 15 without any clearance, so that the storage shelf 2 can be raised and lowered more smoothly. Will come to do.

[0074] Further, since the belt length of the belts 22A and 22B for raising and lowering the storage shelf 2 can be adjusted by turning the tilt adjusting screw 48, the inclination of the storage shelf 2 can be finely adjusted. Smooth As you go up and down.

[0075] Further, by forming the pair of front and rear guide rails 15 integrally with the base member 38, the parallel accuracy is improved as compared with the case where the guide rails 15 are separately provided and attached to the base member 38 with screws or the like. Since it becomes higher, the brackets 17A and 18B slide without rattling. Even when the lateral force is applied to the guide rail 15 from the storage shelf 2, the strength and rigidity of the guide rail 15 is high, so that the parallel accuracy can be maintained.

[0076] Further, when the mounting screws 40 of the storage rack 2 of the bracket 17 are removed and the storage rack 2 may fall from the bracket 17, the protrusion 51 of the storage rack 2 is used to prevent the bracket 17 from falling. Since it is locked in advance by the locking portion 17e (see FIG. 13), the safety is improved.

[0077] In addition, each belt 22A, 22B is connected to the approximate center of the bracket 17 of the storage shelf 2 in the front-rear direction, and the drums 21A, 21B for winding these belts 22A, 22B are connected in the front-rear direction of the storage shelf 2. Since the storage shelf 2 is disposed at a position substantially corresponding to the center, the storage shelf 2 can be raised without tilting in the front-rear direction, and the storage shelf 2 can be raised smoothly without rattling.

In the above-described embodiment, the lifting storage device that lifts and lowers the draining shelf that is one of the storage shelves 2 is shown as the lifting storage device of the floor cabinet 1, but the present invention is not limited to this, and tableware It can also be applied to a lifting storage device that lifts and lowers a dryer or dishwasher.

Further, in the embodiment, the storage shelf 2 of the ascending / descending storage device including the kitchen floor cabinet 1 is taken as an example of the moving body, but a slide door, a slide curtain (curtain), or the like is required. In addition, the present invention can be widely applied to other technical fields where it is desired to set the reciprocating distance of the operation shaft portion 55a of the variable resistor 55 short even if the reciprocating distance of the moving body is long.

[0080] Further, in the embodiment, the position detection rail 56 having the rail groove 56a is adopted. However, if the tip of the operation shaft portion 55a of the variable resistor 55 is formed into a fork, the storage shelf It is also possible to employ a position detection rail having a ridge extending in a direction inclined with respect to the moving direction.

[0081] Further, in the variable resistor 55, the movement direction of the operation shaft portion 55a does not necessarily move up and down the movable shelf 2. It is not necessary to attach to the bracket 17 in a posture that is orthogonal to the direction (direction parallel to the horizontal direction). The direction in which the movement direction of the operation shaft 55a is orthogonal to the elevation direction of the movable shelf 2 (horizontal direction) It may be attached to the bracket 17 in a slightly inclined posture with respect to the direction parallel to the bracket 17.

Further, as shown in FIG. 18, the elevating mechanism 6 may have a configuration in which the drums 21A and 21B and the electric motor 20 are attached to a common base 61. In this way, the tension of the chain 21c can be adjusted before attaching the base 61 to the bottom plate 14C of the storage space 14, so that the workability of assembly can be improved and the drive section can be adjusted during maintenance. It can be taken out as a unit for maintenance.

[0083] The lifting mechanism 6 shown in FIG. 18 will be described in detail. The base 61 is formed by bending a single metal plate, and has a wide L-shape in plan view with the corner portion of the left front portion missing. The bottom plate 61c and the rear end force of the bottom plate 61c over almost the entire width of the bottom plate 61c are straight from the part where the left rectangular front wall 61a and the left corner of the bottom plate 61c are missing. The front wall 61b that stands upright and faces the left side portion of the rear wall 61a is also in force. The base 61 is fixed to the bottom plate 14C of the storage space 14 by a fixing screw 63.

[0084] A rotating shaft 21d extending in the front-rear direction so as to penetrate the rear wall 61a and the front wall 61b is supported by the rear wall 61a and the front wall 61b so as to be rotatable about an axis. Thus, the drums 21A and 21B are fixed to the front side position of the rotating shaft 21d. That is, the drums 21A and 21B are attached to the base 61 via the rotation shaft 21d.

On the other hand, at the right side position of the bottom plate 61c, the cradle 62 is fixed in a mounted state, and the speed reducer 21c is attached to the upper surface of the cradle 62. The electric motor 20 is attached to the front surface of the speed reducer 21c in a posture in which the axial direction is the front-rear direction. That is, the electric motor 20 is attached to the base 61 via the speed reducer 21c and the cradle 62, and the axis of the electric motor 20 and the axis of the rotating shaft 21d to which the drums 21A and 21B are fixed. It is almost parallel to the heart direction.

[0086] The cradle 62 raises the mounting level of the reduction gear 21a to a predetermined height, and the rectangular top plate 62a and the front-rear position force at the left and right ends of the top plate 62a droop. It has four L-shaped legs 62b in front view that spread outward. Similarly to the base 61, the pedestal 62 is formed by bending a single metal plate.

[0087] Then, the force between the front and rear legs 62b also passes below the top plate 62a, and the right belt 22B is stretched between the front drum 21B and the lower pulley 16B of the right side plate 14B. In FIG. 18, the direction in which the belts 22B and 22A are wound around the drums 21B and 21A is opposite to that in the above embodiment.

Further, the speed reducer 21a has an output shaft extending rearward, and a sprocket 21b is attached to the output shaft, while a sprocket is also provided at a rear position of the rotating shaft 21d. 2 lbs are installed! /, And chain 21a is spanned over these sprockets 21b! /. As a result, the output of the electric motor 20 is transmitted to the rotating shaft 21d via the speed reducer 21c and the chain 21a, and the drums 21A and 21B rotate together with the rotating shaft 21d.

[0089] In FIG. 18, the rotating shaft 21d (see FIG. 18) on which the drums 21A and 21B and the electric motor 20 are arranged in parallel and the rotating drums 21A and 21B are fixed and the speed reducer 21c If the output shaft is connected by force coupling or the like, the drums 21A and 21B and the electric motor 20 can be arranged in series. However, to do this, to secure the storage space for the electric motor 20, the force to increase the longitudinal dimension of the storage space 14, or the connection position between the belts 22A, 22B and the bracket 17 and the drum 21A , 21B needs to be changed to either the front or back direction. On the other hand, as shown in FIG. 18, if the drums 21A and 21B and the electric motor 20 are arranged in parallel, the belts 22A and 22B are connected to the approximate center of the bracket 17 in the front-rear direction and the drums 21A and 21B are connected. Drum 21A, 21B and electric motor 20 are housed compactly in storage space 14 while keeping the size of storage space 14 small, while being arranged at a position corresponding to the approximate center of storage shelf 2 in the front-rear direction. be able to.

Further, in FIG. 18, the arrangement positions of the force drums 21A, 21B passing through the right belt 22B below the pedestal 62 are changed further upward, and the speed reducer 21a is fixed to the base 61, Let the belt 22B pass over the electric motor 20!

[0091] As described above, the moving position detection device of the present invention is a device that detects the moving position of a moving body that reciprocates, and the movement direction of the moving body in a state of being attached to the moving body. It has an operating shaft that can be reciprocated in a direction that is substantially orthogonal, and it corresponds to the position of this operating shaft. A variable resistor whose resistance changes, and a position detecting rail extending in a direction in which the operation shaft reciprocates with respect to the moving direction of the moving body, and the operation shaft of the variable resistor Is engaged with the position detecting rail, and moves along the position detecting rail when the moving body moves, so that the moving body moves in a direction substantially orthogonal to the moving direction. It is characterized by moving to.

According to the present invention, a variable resistor is attached to a reciprocating moving body, and an operation shaft portion of the variable resistor is engaged with a position detection rail, thereby following the movement of the moving body, Because the position detection rail moves the operating shaft of the variable resistor in a direction substantially perpendicular to the moving direction of the moving body, the moving position of the moving body can be accurately detected from the output information of the variable resistor. It becomes like this.

[0093] Even when 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 by the inclination angle of the position detection rail (for example, 3 mm).

Omm), even a small and inexpensive variable resistor can accurately detect the moving position of a moving body with a long reciprocating distance.

[0094] In order to perform feedback control of the moving speed of the moving body, a control circuit is further provided for detecting the moving position and moving speed of the moving body from the output information of the variable resistor. It is preferable.

[0095] It is preferable to further include a detection switch for detecting the moving position of the moving body in order to detect the start end position, the end position, the midway position, etc. of the reciprocating movement of the moving body with high accuracy.

[0096] Based on the contrast between the output information of the variable resistor and the output information of the detection switch, the variable resistor and the detection switch It is preferable to further include a control circuit for detecting an abnormality of the detection switch.

[0097] In order to make the installation cost and installation space efficient, the detection switch is preferably attached to the variable resistor.

[0098] Further, the elevating storage device of the present invention includes a storage shelf in which stored items are stored, a housing that can store the storage shelf, a lowered position in which the storage shelf is stored in the housing, A lifting mechanism that lifts and lowers between a rising position that projects upward from the housing, and a lifting position of the storage shelf. A variable resistor force S of the moving position detecting device S is attached to the storage shelf in such a posture that its operation shaft portion can move substantially parallel to the horizontal direction. It is characterized by.

[0099] In order to smoothly move the moving body up and down, the housing has a pair of front and rear guide rails extending in the vertical direction on both the left and right sides of the storage shelf, And a pair of sliding parts that are guided by the guide rails when the storage shelf is raised and lowered, and the sliding parts are respectively pressed against the corresponding guide rails in the front-rear direction. Preferable to contact and.

[0100] In order to raise and lower the moving body more smoothly, it is preferable that the sliding portion is pressed against the guide rail by a biasing force of a spring member.

[0101] In order to raise and lower the moving body more smoothly, a belt for raising and lowering the storage shelf is connected to the storage shelf, and an adjustment member for adjusting the length of the belt It is preferable to be provided.

[0102] Preferably, the pair of front and rear guide rails are formed integrally with the base member in order to slide the sliding portion of the bracket without rattling.

[0103] In order to improve safety, the storage shelf is preferably provided with a locking portion for preventing the storage shelf from falling.

[0104] The casing may be a kitchen floor cabinet, for example.

Claims

The scope of the claims

[1] A device for detecting a moving position of a reciprocating moving body,

A variable resistor having an operating shaft portion that can be moved back and forth in a direction substantially perpendicular to the moving direction of the moving body in a state of being attached to the moving body, and whose resistance changes according to the position of the operating shaft portion; A position detection rail extending obliquely in a direction in which the operation shaft portion reciprocates with respect to a moving direction of the moving body,

The operation shaft portion of the variable resistor is engaged with the position detection rail, and moves along the position detection rail when the moving body moves, so that the moving body moves relative to the moving body. A moving position detecting device that moves in a direction substantially perpendicular to the direction.

2. The moving position detection device according to claim 1, further comprising a control circuit that detects a moving position and a moving speed of the moving body from the output information of the variable resistor.

[3] The moving position detecting device according to claim 1 or 2, further comprising a detection switch for detecting a moving position of the moving body.

[4] The control circuit according to claim 3, further comprising a control circuit that detects an abnormality of the variable resistor and the detection switch based on a comparison between output information of the variable resistor and output information of the detection switch. Moving position detection device.

5. The moving position detection device according to claim 3, wherein the detection switch is attached to the variable resistor.

[6] A storage shelf in which stored items are stored, a housing capable of storing the storage shelf, a lowered position in which the storage shelf is stored in the housing, and a raised position in which the housing force projects upward. And a moving position detecting device according to any one of claims 1 to 5, wherein the variable resistor of the moving position detecting device has a variable resistor. An elevating type storage device characterized in that the operation shaft portion is attached to the storage shelf in a posture in which the operation shaft portion can move substantially parallel to the horizontal direction.

[7] The housing has a pair of front and rear guide rails extending in the vertical direction on both left and right sides of the storage shelf, and the storage shelf is moved to the left and right side positions when the storage shelf moves up and down. Each has a pair of front and rear sliding parts guided by the guide rail, 7. The elevating storage apparatus according to claim 6, wherein each sliding portion comes into contact with a corresponding guide rail in a pressed state in the front-rear direction.

8. The elevating storage device according to claim 7, wherein the sliding portion is pressed against the guide rail by a biasing force of a spring member.

[9] A belt for raising and lowering the storage shelf is connected to the storage shelf.

9. An elevating storage device according to claim 7 or 8, wherein an adjustment member for adjusting the length of the belt is provided.

10. The elevating storage apparatus according to any one of claims 7 to 9, wherein the pair of front and rear guide rails are formed integrally with a base member.

[11] The lifting storage device according to any one of [7] to [7], wherein the storage shelf is provided with a locking portion for preventing the storage shelf from falling.

[12] The casing of claim 6, wherein the casing is a kitchen floor cabinet.

The lifting storage device according to one of V and displacement.