JP3656567B2 - Lifting shelf equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lifting shelf device that lifts and lowers a shelf portion with respect to an external case via a guide rail, and particularly relates to a technique for stabilizing lifting and reducing lifting resistance.
[0002]
[Prior art]
Conventionally, the lower case-side lifting cable connected to the shelf is connected to the shelf, and the shelf is provided at the storage position for storing in the outer case so as to be raised and lowered at the article take-out / storage position. As shown in FIG. 20, in the lifting / shelf shelf apparatus provided with the rail and the guide body guided by the guide rail on the shelf side, the bracket 12 fixed on the shelf side is brought into contact with one side of the guide rail 14. A pair of fixed rollers 4 a and 4 a that are in contact with each other, and an adjustment roller 5 a that is capable of adjusting the position that is in contact with the other side surface of the guide rail 14 are provided.
[0003]
[Problems to be solved by the invention]
The rollers 4a and 5a use a ball bearing B, and use a ball bearing B with a small number of balls c interposed between the outer race a and the inner race b. 14 is contacted at three points to perform a guide function.
[0004]
In such a case, the ball c... Moves and the outer race a is easily deformed, it is difficult to enhance the bearing function, and there is a problem that the swing is likely to occur when the shelf is raised and lowered.
[0005]
This invention is made | formed in view of such a problem, and makes it a subject to provide the raising / lowering shelf apparatus which can stabilize raising / lowering and can reduce resistance of raising / lowering, without using a ball bearing. Is.
[0006]
[Means for Solving the Problems]
In claim 1, the hoisting cable 3 on the outer case 1 side, which is open at the bottom, is connected to the shelf 2, and the shelf 2 is raised to the storage position for storing in the outer case 1 and lowered to the article removal / storage position. A lifting shelf apparatus A provided with a guide rail 14 on the outer case 1 side and a guide body 16 guided by the guide rail 14 on the shelf 2 side. The guide body 16 is long in the lifting direction. The fixed shoe 4 and the movable shoe 5 having smoothness are provided, the fixed shoe 4 is brought into contact with one side surface of the guide rail 14 and the movable shoe 5 is elastically contacted with the other side surface of the guide rail 14 by the spring 6. It is characterized by this. According to such a configuration, the guide rail 14 is sandwiched between the fixed shoe 4 and the movable shoe 5 that are long and slid in the ascending / descending direction, and the movable shoe 5 is in elastic contact with the guide rail 14. The movable shoe 5 moves against the spring 6 and can follow the guide rail 14 to stabilize the raising and lowering, and the moving shoe 5 can reduce the resistance during the raising and lowering.
[0007]
According to the second aspect of the present invention, the movable body 7 holding the movable shoe 5 is slidable on the fixed base 8 in the direction of contact with the guide rail 14 and in a direction crossing the direction of contact with the guide rail 14. The movable body 7 is movably provided, and the movable body 7 is urged to the fixed base 8 side by the spring 6, the sliding body 10 is extended from the side surface of the movable shoe 5, the slit 9 is formed in the fixed base 8, and the sliding body 10 is slit. 9 is freely inserted so as to be movable in a contact direction with the guide rail 14 and swingable in a direction intersecting the contact direction with the guide rail 14. According to such a configuration, the sliding body 10 protruding from the side surface of the movable shoe 5 moves in the contact direction to the guide rail 14 and the contact direction to the guide rail 14 in the slit 9 formed in the fixed base 8. The movable shoe 5 can follow the guide rail 14 even further while the shoe can be swung in the intersecting direction and is long in the ascending / descending direction, and the swing of the shelf portion 2 can be prevented.
[0008]
According to a third aspect of the present invention, a hook 11 is formed at the tip of the sliding body 10 to prevent the sliding body 10 from being removed. According to such a configuration, the sliding body 10 does not come out of the slit 9 and the mechanism is stabilized.
[0009]
According to a fourth aspect of the present invention, the position detecting sensor 50 is attached to one side of the fixed base 8 fixed to the shelf 2 side and the position detection sensor 50 for detecting the raising / lowering position of the shelf 2 with respect to the outer case 1 is provided on the opposite side of the fixed base 8. The attached sensor mounting plate 52 is arranged, and adjustment holes 53 and 53 for adjusting the mounting position of the position detection sensor 50 are formed in the fixed shoe 4 and the fixed base 8, and the fixed shoe 4 is opposite to the fixed base 8. A nut plate 55 is arranged, a holding piece 54 is formed on the fixed shoe 4 to hold the nut plate 55 so that the position of the nut plate 55 can be changed, and a screw tool 51 penetrating the sensor mounting plate 52 is attached to an adjustment hole of the fixed base 8 and the fixed shoe 4. The position detection sensor 50 is fixed by being inserted into 53 and 53 and screwed into the screw hole 56 of the nut plate 55. According to such a configuration, in the maintenance of the position detection sensor 50 that detects the position of the shelf 2 with respect to the outer case 1, the nut plate 55 is formed on the fixed shoe 4 when the screw tool 51 is loosened or removed on site. Since it is held movably by the holding piece 54, the nut plate 55 does not fall off and is lost when the screw 51 is loosened or removed at the site, including replacement of the position detection sensor 50. Maintenance can be easily performed on site.
[0010]
Incidentally, in the position adjustment work of the position detection sensor 50, there is no space to hold the nut plate 55 so as not to drop, and the nut plate 55 is likely to drop.
[0011]
In claim 5, the adjustment hole 53 of the fixed shoe 4 is a long hole 53a, the screw hole 56 of the nut plate 55 is formed by burring, and the burring protruding portion 57 protruding from the nut plate 55 is slid into the long hole 53a. It is characterized by being freely inserted. According to such a configuration, since the burring protrusion 57 is engaged with the elongated hole 53a, the nut plate 55 can be more reliably prevented from falling off, and the maintenance is further facilitated.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. FIG. 1 is a partial plan sectional view. FIG. 2 is a schematic overall side view. FIG. 3 is a front sectional view.
[0013]
The lifting / lowering shelf device A constitutes a part of the top bag as a tableware drying device, and is installed as a part of the top bag that partitions the cooking unit and the dining room, for example, and below it is a counter (not shown). It is arranged. Details will be described below.
[0014]
The outer case 1 is formed in a box shape that is open at the bottom, includes a door 25, a hot air supply unit 19 including a fan 17 and a heater 18 is installed in the upper part of the outer case 1, and a pulley 20 An elevating mechanism unit 23 including a winding drum 21 and a drive motor 22 is installed, and is airtight so that moisture and the like do not enter by being surrounded by a cover. A hot air outlet is formed in the cover. By the way, the fan 17 can be driven independently of the heater 18 and can supply hot air for driving the heater 18 or supply (cold) air with the heater 18 stopped. Drying and cooling with hot air drying or air supply (cold) air is attempted. Such a switching operation is performed by an operation on the operation panel.
[0015]
The shelf 2 is engaged with belts 27, 27 which are a pair of lifting ropes 3 from the lifting mechanism 23, and the shelf 2 can be lifted and lowered by the drive motor 22.
[0016]
The shelf 2 is formed by, for example, laying a plurality of metal wires 28, which are colored and rust-prevented, between the top plate 36 and the water receiver 26 to form a substantially cage shape. A plate is inserted and held between the plates 28, and a container-like tableware such as chawan can be accommodated inside.
[0017]
An intake duct 30 is provided along the side plate 29 side of the outer case 1, and an intake port 31 is formed at the lower end of the outer case 1. An intake filter is detachably attached to the intake port 31.
[0018]
The water receptacle 26 of the shelf 2 is formed in a pan shape, is stopped with a screw, and can be removed from the shelf 2 by removing the screw. A water gradient is formed in the water receiver 26, and a drain outlet is formed at the lowest portion of the water gradient. In addition, an exhaust port is provided for exhaust.
[0019]
A U-shaped frame 37 is attached to the upper end of the shelf 2, and an adjustment bolt 38 is inserted into the frame 37 so as to be rotatable only from below, and a position adjustment fitting 39 is inserted into the adjustment bolt 38. A belt shaft 41 is attached to the lower surface of the belt, and the hoisting rope 3 as a belt is engaged with the belt shaft 41, and the adjustment bolt 38 is rotated to adjust the position of the nut 40 screwed into the adjustment bolt 38. Thus, the position adjusting bracket 39 is finely adjusted so that the storage position of the shelf 2 is set to a predetermined position.
[0020]
As shown in FIGS. 1 and 4, a guide rail 14 having a substantially H shape in plan view is attached to the opposing side plates 29 of the outer case 1. A bracket 12 is attached to the shelf 2, and a guide body 16 having a pair of shoes 4 and 5 is attached to both sides of the guide rail 14, and the shelf 2 is smoothed using the guide rail 14 as a guide. Can be moved up and down.
[0021]
The guide body 16 includes a fixed shoe 4 and a movable shoe 5 which are long in the ascending / descending direction and have slidability. The fixed shoe 4 abuts against one side surface of the guide rail 14 and the movable shoe 5 is guided by a spring 6 to the guide rail. It is elastically touching the other side of 14.
[0022]
Specifically, a fixed shoe 4 having a slipperiness such as a tetrafluoroethylene resin and being long in the length direction of the guide rail 14 is fixed to the bracket 12 with a screw 58. The movable body 7 bent into an L shape holding the movable shoe 5 is brought into contact with the bracket 12 as a fixed base 8, and the coiled spring 6 is inserted into a bolt 15 screwed into a screw hole formed in the bracket 12. The movable body 7 is urged against the guide rail 14 by urging the movable body 7 against the bracket 12 by the compression force of the spring 6 by screwing the bolt 15. Symbol G is a gap.
[0023]
In this manner, the guide shoe 14 is sandwiched between the fixed shoe 4 and the movable shoe 5 that are long and slid in the ascending / descending direction, and the movable shoe 5 is in elastic contact with the guide rail 14. It can move against the spring 6 and follow the guide rail 14 to stabilize the elevation, and the movable shoe 5 can reduce the resistance during the elevation.
[0024]
As shown in FIGS. 1 and 9, a pair of sliding bodies 10 and 10 are extended from the side surface of the L-shaped movable body 7 holding the movable shoe 5, and a pair of slits 9 and 9 are formed in the bracket 12. The sliding body 10 is loosely inserted into the slit 9 so as to be movable in the contact direction with the guide rail 14 and swingable in a direction (vertical direction) intersecting the contact direction with the guide rail 14.
[0025]
Thus, the sliding body 10 protruding from the side surface of the movable shoe 5 moves in the direction of contact with the guide rail 14 in the slit 9 formed in the bracket 12 and intersects the direction of contact with the guide rail 14 (vertical direction). ) And the movable shoe 5 can follow the guide rail 14 even further while being a shoe that is long in the ascending / descending direction, so that the shelf 2 can be prevented from shaking.
[0026]
By the way, since the hook 11 is formed in the front-end | tip part of the sliding body 10 and the removal prevention from the slit 9 is aimed at, the sliding body 10 does not come out of the slit 9, and stabilizes the guide mechanism in a shoe form. In addition, the hook 11 can slide on the inner surface of the bracket 12 to change the posture of the movable shoe 5.
[0027]
In the lifting shelf device A, the lifting position of the shelf 2 is accurately detected, the upper limit stop and the lower limit stop are accurately detected, and the slack, overloading, etc. of the lifting rope 3 are detected based on the position detection result. The product value of the lifting shelf apparatus A is increased for safety. Details will be described below.
[0028]
FIG. 10 is an explanatory diagram of the uneven bar 60, and FIG. 11 shows a detection signal. An uneven bar 60 is provided over the entire length of the lifting path of the shelf 2 of the outer case 1. In the uneven bar 60, a large number of recesses 61 and protrusions 62 having the same width W in the intermediate region are alternately formed. An upper convex portion 62 </ b> X having a width larger than the width W of the concave portion 61 and the convex portion 62 is formed at the upper end portion of the concave / convex bar 60. In addition, a lower recess 61 </ b> X larger than the width W of the recess 61 and the protrusion 62 is formed at the lower end.
[0029]
Such an uneven bar 60 is integrated with the guide rail 14. Thus, a pair of concave and convex bars 60 are attached to the outer case 1 with the same bar facing the same level.
[0030]
Position detection sensors 50 are provided on both sides of the shelf 2 at different heights. One (right) position detection sensor 50a has a recess 61 or a protrusion 62, and the other (left) position detection sensor 50b has a protrusion. The part 62 or the recessed part 61 is provided so that it may detect alternately (refer FIG. 10). Such a position detection sensor 50 is, for example, a photo interrupter. In FIG. 10, if the interval between both position detection sensors 50a and 50b is Y, Y <W.
[0031]
Thus, the position detection sensors 50a and 50b detect the concave portion 61 of the concave / convex bar 60, thereby inputting the concave portion signal L to the position detecting means 63, and detecting the convex portion 62 of the concave / convex bar 60, The convex portion signal H is input to the position detecting means 63 (FIG. 14). FIG. 11 shows signal waveforms.
[0032]
In the position detection means 63, when both the position detection sensors 50a and 50b detect the convex part signals H and H, it is determined that the shelf 2 is at the upper limit position, and the position detection sensors 50a and 50b When both of the recess signals L and L are detected, it is detected that the shelf 2 is at the lower limit position, and the detection signals L and H of the uneven portions 61 and 62 are alternately detected in the position detection sensors 50a and 50b. , L, it is detected that the shelf 2 is in the intermediate position.
[0033]
As described above, the concave and convex portions 61 and 62 of the concave and convex bars 60 and 60 provided on the outer case 1 side are detected by the position detection sensors 50a and 50b provided on the shelf 2 side, and the position is determined based on the detection result. The position of the shelf 2 can be detected by the detection means 63, the configuration for detecting the positions of the upper limit position, the lower limit position, and the intermediate position of the shelf 2 can be integrated, the configuration can be simplified, The number of assembly steps can be reduced, and the position detection accuracy can be easily improved by reducing the mounting error.
[0034]
In this case, the concave / convex bar 60 is attached to the outer case 1 with the same bar facing the same level, and the position detection sensors 50a, 50b are different in height on both sides of the shelf 2, and one position detection sensor 50a is Since the concave portion 61 or the convex portion 62 is provided so that the other position detection sensor 50b alternately detects the convex portion 62 or the concave portion 61, the heights of the position detection sensors 50a and 50b on both sides of the shelf portion 2 are increased. It is possible to detect the concave portions 61 and the convex portions 62 alternately in both the position detection sensors 50a and 50b, and the phase of the concave portions 61 and the convex portions 62 is detected when the irregular portions are alternately detected as described above. There is no need to manufacture two different uneven bars, and the same uneven bars 60, 60 can be used to attach to the same level, reducing the number of parts and easy installation. Are those sure to easily done.
[0035]
Furthermore, since the uneven bar 60 is integrated with the guide rail 14 for raising and lowering the shelf 2, the guide bar 14 required for raising and lowering the shelf 2 can be used effectively to provide the uneven bar 60. In addition, it is possible to prevent the number of parts from increasing while providing the concave / convex bar 60, and to save the man-hours for mounting the concave / convex bar 60.
[0036]
15 to 19 show a configuration in which the position detection sensor 50 is attached to the fixed base 8 so that maintenance including replacement of the position detection sensor 50 can be easily performed on site. Details will be described below.
[0037]
The fixed shoe 4 is attached to one side of the fixed base 8 fixed to the shelf 2 side with a screw 58. A sensor mounting plate 52 for mounting the position detection sensor 50 is disposed on the opposite surface of the fixed base 8. Adjustment holes 53 and 53 for adjusting the mounting position of the position detection sensor 50 are formed in the fixed shoe 4 and the fixed base 8. The adjustment hole 53 is a long hole 53a. A nut plate 55 is disposed on the opposite side of the fixed shoe 4 from the fixed base 8. A holding piece 54 is formed on the fixed shoe 4 to hold the nut plate 55 so that its position can be changed.
[0038]
Thus, the screw 51 passing through the sensor mounting plate 52 is inserted into the adjustment holes 53 and 53 of the fixing base 8 and the fixing shoe 4 and screwed into the screw holes 56 of the nut plate 55 to fix the position detection sensor 50. .
[0039]
According to such a configuration, in the maintenance of the position detection sensor 50 that detects the position of the shelf 2 with respect to the outer case 1, the nut plate 55 is formed on the fixed shoe 4 when the screw tool 51 is loosened or removed on site. Since it is held movably by the holding piece 54, the nut plate 55 does not fall off and is lost when the screw 51 is loosened or removed at the site, including replacement of the position detection sensor 50. Maintenance can be easily performed on site.
[0040]
Further, the screw hole 56 of the nut plate 55 is formed by burring, and a burring protruding portion 57 protruding from the nut plate 55 is inserted into the long hole 53a so as to be slidable in the length direction of the long hole 53a.
[0041]
In this manner, since the burring protruding portion 57 is engaged with the long hole 53a, the nut plate 55 can be more reliably prevented from falling off, and the maintenance is further facilitated.
[0042]
【The invention's effect】
According to claim 1, the lower case-side lifting case-side lifting line is connected to the shelf, and the shelf is provided at the storage position for storing in the outer case and can be lowered at the article take-out / storage position. A lifting rack apparatus provided with a guide rail on the case side and a guide body guided by the guide rail on the shelf side, the guide body being long in the ascending and descending direction and having a sliding shoe and a movable shoe The fixed shoe is in contact with one side of the guide rail and the movable shoe is elastically contacted with the other side of the guide rail by a spring. Since the rail is sandwiched and the movable shoe is in elastic contact with the guide rail, the movable shoe can move against the spring and follow the guide rail to stabilize the lifting, There is an advantage that it is possible to reduce the resistance during the lifting by the movement of the moving shoe.
[0043]
According to a second aspect of the present invention, in addition to the structure of the first aspect, the movable body holding the movable shoe is movable on the fixed base in the direction of contact with the guide rail and intersects with the direction of contact with the guide rail. The movable body is urged toward the fixed base by a spring, the sliding body is extended from the side of the movable shoe, a slit is formed in the fixed base, and the sliding body is used as a slit to the guide rail. In addition to the effects of the first aspect, the sliding body projecting from the side surface of the movable shoe is freely inserted in such a manner as to be movable in the abutting direction and swingable in a direction intersecting the abutting direction to the guide rail. Can move in the direction of contact with the guide rail in the slit formed in the fixed base and swing in the direction intersecting with the direction of contact with the guide rail. Guide race , The more, it is possible to follow, there is an advantage that it is possible to prevent the shaking of the ledge.
[0044]
In the third aspect, in addition to the structure of the second aspect, a hook is formed at the tip of the sliding body to prevent the sliding body from being removed from the slit. There is an advantage that the mechanism is stabilized without slipping out.
[0045]
According to a fourth aspect of the present invention, in addition to the effect of the first aspect, the fixed shoe is attached to one side of the fixed base fixed to the shelf side, and the position detection for detecting the raising / lowering position of the shelf relative to the external case on the opposite side of the fixed base. A sensor mounting plate for mounting the sensor is arranged, an adjustment hole for adjusting the mounting position of the position detection sensor is formed in the fixed shoe and the fixed base, and a nut plate is arranged on the opposite side of the fixed shoe from the fixed base, and fixed. A holding piece is formed on the shoe to hold the nut plate so that the position of the nut plate can be changed. The screw that penetrates the sensor mounting plate is inserted into the fixing hole of the fixing base and the fixing shoe and screwed into the screw hole of the nut plate. When the screw tool is loosened or removed on-site during maintenance of the position detection sensor that detects the position of the shelf relative to the outer case. Since the nut plate is held movably by a holding piece formed on the fixed shoe, the nut plate will not fall off and be lost if the screw is loosened or removed on site, and the position detection sensor There is an advantage that maintenance including replacement can be easily performed on site.
[0046]
According to claim 5, in addition to the effect of claim 4, the adjustment hole of the fixed shoe is a long hole, the screw hole of the nut plate is formed by burring, and the burring protruding portion protruding from the nut plate is a long hole. Since it is slidably inserted, the protruding part of the burring is engaged in the long hole, so that the nut plate can be prevented from falling off more reliably, and the maintenance is easier. is there.
[Brief description of the drawings]
FIG. 1 is a partial plan sectional view of an embodiment of the present invention.
FIG. 2 is a schematic overall side view of the above.
FIG. 3 is a front sectional view of the above.
FIG. 4 is a side view in which a part of the same shelf is omitted.
FIG. 5 is a partial front view of the above.
FIG. 6 is a partial plan view of the above.
FIG. 7 is a partial side view of the above.
FIG. 8 is a partial front view of the above.
FIG. 9 is a front view showing the relationship between the bracket, the sliding body and the hook.
FIG. 10 is an explanatory diagram of the uneven bar and the position detection sensor.
FIG. 11 is a waveform diagram of the above.
12A is a cross-sectional view of a guide rail, and FIG. 12B is a side view.
FIG. 13 is a front sectional view of the above-described guide rail.
FIG. 14 is a schematic front view of the above.
FIG. 15 is a partial side view of another embodiment of the above.
FIG. 16 is a partial front view of the above.
FIG. 17 is a partial plan view of the same.
18A is a side view of the fixed shoe, FIG. 18B is a horizontal sectional view of FIG. 18A, and FIG. 18C is a longitudinal sectional view of FIG.
19A is a plan view of a nut plate, and FIG. 19B is a side view.
FIG. 20 is an exploded front view showing a relationship between a guide rail and a guide roller of a conventional example.
FIG. 21 is a front view showing the relationship between the guide rail and the guide roller.
FIG. 22 is a side view of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer case 2 Shelf part 3 Lifting rope 4 Fixed shoe 5 Movable shoe 6 Spring 7 Movable body 8 Fixed base 9 Slit 10 Sliding body 11 Hook

Claims (5)

The lower case-side lifting cable on the lower side is connected to the shelf, and the shelf is raised at the storage position for storing in the outer case and can be lowered at the article removal / storage position, and a guide rail is provided on the outer case side. A lifting shelf device provided with a guide body guided by a guide rail on the shelf side, the guide body having a fixed shoe and a movable shoe that are long in the lifting direction and have sliding properties, An elevating shelf apparatus comprising a movable shoe abutting against one side of the guide rail and elastically contacting the other side of the guide rail with a spring. A movable body holding a movable shoe is provided on a fixed base so as to be movable in the direction of contact with the guide rail and swingable in a direction intersecting with the direction of contact with the guide rail. Energized to the fixed base side, extending the sliding body from the side of the movable shoe, forming a slit in the fixed base, allowing the sliding body to move freely in the direction of contact with the guide rail and contact with the guide rail 2. The lifting shelf apparatus according to claim 1, wherein the lifting shelf apparatus is swingably inserted in a direction intersecting with the direction. 3. The lifting shelf apparatus according to claim 2, wherein a hook is formed at the tip of the sliding body to prevent the sliding body from being removed from the slit. A fixed shoe is attached to one side of the fixed base that is fixed to the shelf, and a sensor mounting plate is attached to the opposite side of the fixed base to attach a position detection sensor that detects the raising / lowering position of the shelf relative to the outer case. An adjustment hole that adjusts the mounting position of the position detection sensor is formed in the fixed base, a nut plate is placed on the opposite side of the fixed base of the fixed shoe, and a holding piece is formed on the fixed shoe so that the nut plate can be repositioned. 2. The position detecting sensor according to claim 1, wherein the position detection sensor is fixed by holding and screwing a screw tool penetrating the sensor mounting plate into the adjusting hole of the fixing base and the fixing shoe and screwing it into the screw hole of the nut plate. Elevating shelf device. 5. The adjustment hole of the fixed shoe is a long hole, the screw hole of the nut plate is formed by burring, and a burring protruding portion protruding from the nut plate is slidably inserted into the long hole. The lifting shelf apparatus as described.

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