JP3475811B2 - Elevating clothes dryer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting and lowering apparatus.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 29 and 30, a pair of left and right pantograph-type telescopic arms for suspending a clothesline 9 in a storage box 2 which is attached to an opening 85 of a ceiling and which opens downward. The upper end of 80 is attached, the wire 11 is wound up and down by the DC motor 4, and the pantograph-type telescopic arm 80 is stored in the storage box 2 or is extended below the storage box 2 to pull out the clothesline 9. There is known a lifting and lowering device 1'which is vertically movable in a room. Reference numeral 82 in FIG. 30 is a mounting frame for the clothesline 9.

[0003]

However, when the clothespin 9 is vertically moved up and down by the pantograph type telescopic arm 80 as in the conventional case, the structure of the telescopic arm 80 is complicated and the telescopic arm 80 is complicated. It is necessary to fold 80 and store it in the storage box 2, and the DC motor 4
It is necessary to house a transformer that supplies a DC current to the controller and a control unit that controls the DC motor 4. As a result, the width L of the storage box 2 becomes large in the related art.
As a result, the weight of the storage box 2 becomes heavy and it becomes difficult to mount it on the back of the ceiling, and the opening 85 of the ceiling becomes large, and it becomes necessary to reinforce it with a reinforcing bar. there were.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a ceiling box having a structure in which a DC motor, a transformer, and a control unit case are attached to a top plate of a storage box. Provided is an elevating and lowering device capable of reducing the width dimension of the storage box, ensuring the size of the control unit case, simplifying the structure of the hanging mechanism for the clothesline, and downsizing and saving the construction work. The other purpose is to provide a lifting and lowering device which can stably attach the flat control case, and the other purpose is from which direction of the room. However, it is to provide an elevating and lowering clothes-drying device that enables remote control operation of the clothes-drying rod. Another purpose is to set the upper and lower limit positions of the clothes-drying rod. It is to provide a lifting and lowering device which can prevent over-down and up-raising of the clothes-drying rod that is moved up and down by the DC motor, and can improve the safety of use. Another object is to provide a clothes-drying rod. Is to provide a lifting / drying device capable of reliably detecting the upper limit position and the lower limit position of the drying pole, and another purpose is to make the drying pole move up to the upper limit position when the drying pole moves up to the ceiling opening or makeup cover. The purpose of the present invention is to provide a lifting and lowering device that can prevent the risk of being caught in the clothesline, and another purpose is to prevent the clothesline from being deformed or damaged even when a child hangs on the clothesline. Another purpose of the present invention is to provide a lifting and lowering device which can adjust the height of the lower limit position of the clothesline according to the ceiling height. To provide an elevating clothes-drying device that can protect the end of the clothes-drying rod even if the end of the clothes-drying rod is caught in the opening of the ceiling or the decorative cover while the clothes-drying rod is rising to the upper limit position. Another object of the present invention is to provide an elevating clothes-drying device which has a structure in which the clothes-drying rod is suspended by a wire and which can prevent vibration of the clothes-drying rod with good appearance.

[0005]

In order to solve the above-mentioned problems, the present invention provides a drive unit 5 having a DC motor 4 as a drive source in a storage box 2 attached to an opening of a ceiling and opened downward. 1. A lifting and lowering clothes hanging device which houses a control unit for controlling the driving unit 5 and a transformer 10 for supplying a direct current to the DC motor 4, and vertically moves the wire 11 for hanging the clothes rod 9 up and down by the driving unit 5. The storage box 2 can be stored in the storage box 2, and the top plate 3 of the storage box 2 is formed in a rectangular shape in plan view, and a drive unit case 6 for storing the drive unit 5 along the longitudinal direction A of the top plate 3 and a transformer. 10
And the side surface of the flat control unit case 8 for accommodating the control unit is oriented in the longitudinal direction A of the top plate 3 and located on the straight line connecting the drive unit case 6 and the transformer 10. It is characterized by being attached to the drive unit case 6 and the transformer 10 with the flat control unit case 8 oriented in the longitudinal direction of the top plate 3.
By mounting the control board on the straight line that connects to the control board, the width B of the top board 3 can be reduced and the size of the control unit case 8 can be secured, so that a large area of the control board can be stored. Moreover, since the clothesline 9 is hung and supported by the wire 11, the structure of the hanging mechanism for the clothesline 9 is simplified and the width of the storage box 2 is simplified as compared with the case where the conventional pantograph-type telescopic arm is folded and stored. The size B can be reduced to reduce the size and weight. Therefore, a space for disposing the lifting and lowering device is small, and further, it is not necessary to make the opening of the ceiling small and to reinforce it with a reinforcing bar, which facilitates the installation work.

Further, it is preferable that an engaging portion 12 that engages with the drive unit case 6 attached to the top plate 3 adjacent to the control unit case 8 is provided on the flat control unit case. Even when the control unit case 8 is mounted vertically on the top plate 3, the stable mounting state of the control unit case 8 can be obtained by the engagement with the drive unit case 6.

Further, a remote control light-receiving portion 21 for remote operation is provided in the drive portion, and the drive portion 5 is attached to the top plate 3 so that the remote-control light receiving portion 21 is located at a substantially central portion in the width direction C of the top plate 3. In this case, when the clothes-drying rod 9 is positioned at the center of the top plate 3 in the width direction C in order to prevent the clothes-drying rod 9 from swaying, the remote-control light-receiving unit is located almost directly above the clothes-drying rod 9. 21 is positioned, and therefore light can be received from any direction in the room.

Further, the drive unit 5 is provided with a position detecting means 13 for detecting the uppermost upper limit position P1 of the clothesline 9 and the lowermost lower limit position P2 of the clothesline 9, and the clothesline between the upper and lower limit positions P1 and P2. It is preferable to drive and control 9,
In this case, the position detector 13 can prevent the clothes-drying rod 9 from being lowered or raised too much by the drive unit 5, and the safety of use can be improved.

The position detecting means 13 provided in the drive section 5 preferably comprises a detecting disk 15 which rotates in response to the winding and lowering of the wire 11 and means for detecting the amount of rotation of the detecting disk 15. In this case, the upper limit position P1 and the lower limit position P of the clothesline 9 are determined based on the amount of rotation of the detection disk 15 that rotates according to the amount of lifting of the clothesline 9.
2 can be detected with high accuracy.

Further, a drying position P3 is set between the upper limit position P1 and the lower limit position P2 of the above-mentioned clothes-drying rod 9, and when the clothes-drying rod 9 is lifted from the lower-limit position P2 by the driving unit 5, the clothes-drying position P3 is automatically set. It is preferable to control so as to stop, and in this case, when the user forgets to press the stop switch at the drying position P3 during the lifting operation of the clothes rod 9 or when the user leaves the place due to an errand. Also, clothesline 9
Automatically stops at the predetermined drying position P3, so the clothesline 6 accidentally rises from the drying position P3 to the upper limit position P1 and the laundry becomes dirty, or the clothesline is opened in the ceiling. It can be prevented from being caught and the safety of use can be secured.

A wire 1 for suspending the clothesline 9
It is preferable to attach a cord body 16 having a low tensile strength to the tip of 1 and connect the cord body 16 to the clothesline 9. In this case, for example, a child hangs on the clothesline 9 or the clothesline 9 is placed at the upper limit position P1. When the clothes rod 9 is moved to the storage box 2 and stored in the storage box 2, even when an external force is applied to the clothes rod 9 such as when the end of the clothes rod 9 is caught in the opening of the ceiling or the makeup cover, By cutting the string body 16 first, it is possible to prevent the clothesline 9 from being deformed or damaged.

Further, it is preferable to attach a length adjusting member 17 to the tip of the wire 11 so that the height of the lower limit position P2 of the clothesline 9 can be freely changed. In this case, even when the ceiling height D is different, The height of the lower limit position P2 of the clothesline 9 can be easily adjusted according to the ceiling height D without changing the amount of raising and lowering of the wire 11 by the drive unit 5.

Further, it is preferable to attach a soft rubber 18 to the tip of the clothesline 9 which is suspended by the wire 11. For example, the end of the clothesline 9 is an opening part of the ceiling while the clothesline 9 is raised to the upper limit position P1. The soft rubber 18 can protect the end of the clothesline 9 even if it is caught on a cosmetic cover or the like.

Further, it is preferable that a damping material 19 is built into the clothes-drying rod 9 which is suspended by the wire 11. In this case, even if the clothes-drying rod 9 is suspended by the wire 11, it is difficult to control the vibration. Since the vibration damping action of the vibration material 19 can reduce vibration and shaking, the laundry can be stably held so as not to move.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the embodiments of the present invention will be described. As shown in FIGS. 1 to 6, this lifting and lowering apparatus 1 has a storage box 2 which is attached to an opening portion of a ceiling and which opens downward. A drive unit 5 having a DC motor 4 as a drive source, a control unit for controlling the drive unit 5, and a DC motor 4
And a transformer 10 for supplying a direct current to each of them are housed therein, and a wire 11 for suspending a clothesline 9 is wound up by a drive unit 5 and can be wound down and moved up and down.

As shown in FIG. 1, the top plate 3 of the storage box 2 is formed in a rectangular shape in plan view, and the drive unit 5 is stored on the lower surface of the top plate 3 along the longitudinal direction A thereof. The drive unit case 6, the transformer 10 and the control unit case 8 are attached respectively.

As shown in FIG. 5, the drive unit case 6 is integrally formed with a motor chamber 23 for accommodating the DC motor 4 and a gear chamber 24 for accommodating the reduction gear 25. A worm gear 27 is attached to the rotary shaft 26 of the DC motor 4.
Is pressed into the worm gear 27.
It is rotatably supported by the drive unit case 6 by 8.
In this example, the reduction gear 25 includes a worm wheel 29 that meshes with the worm gear 27, an intermediate gear 30 that meshes with the worm wheel 29, and a final gear 31 that meshes with the intermediate gear 30. Rotating drum 3 for winding up and down the wire 11 shown
2 are connected, and the rotational force of the DC motor 4 is reduced by the reduction gear 25 and transmitted to the rotary drum 32.

The rotating drum 32 is provided with one end of each of two left and right wires 11 for suspending the clothesline 9. The other ends of the wires 11 are hung downward via pulleys 33 attached to both ends in the longitudinal direction of the storage box 2, and the ends of the clothesline 9 are suspended and supported by the lower ends of the wires 11. . In this example, the vertical load applied to the wire 11 (indicated by the arrow a in FIG. 6) acts in the counterclockwise direction b of the rotating drum 32,
Therefore, the worm gear 27 interposing the intermediate gear 30 also acts in the same direction B, and a pressing force is applied to the worm gear 27 in the direction c in which the worm gear 27 is press-fitted into the rotary shaft 26 of the DC motor 4. At this time, the direction (c) of the load applied to the worm gear 27 coincides with the direction in which the worm gear 27 is press-fitted into the rotary shaft 26 of the DC motor 4, so that the worm gear 27 is simply press-fitted into the rotary shaft 26. The structure is such that 27 does not come off the rotary shaft 26.

In this example, as shown in FIG. 5B, the worm gear 27 has a larger inner diameter b on both sides than the middle inner diameter a and an outer diameter on both sides than the middle outer diameter d. c
Is formed in a substantially tubular shape with a reduced size. in this way,
Because of the relationship of a <b, c> d, the tip of the rotary shaft 26 is easily pressed into the middle of the worm gear 27. Figure 5
D in (b) indicates the press-fitting range of the worm gear 27. Further, the outer peripheral end of the worm gear 27 has a bearing portion 28.
The receiving portion 34 is supported by the receiving portion 34.
This prevents eccentric rotation of the worm gear 27. Further, by providing the receiving portions 34 having the same length at both ends of the worm gear 27, the worm gear 27 can be used in either the left or right direction.

As shown in FIG. 2, a light receiving substrate 22 is attached to the lower surface of the drive unit 5, and a remote control light receiving unit 21 for remote operation is mounted on the light receiving substrate 22 facing the room. Here, the drive unit 5 is arranged such that the remote control light receiving unit 21 is located at a substantially central portion of the top plate 3 in the width direction C.
On the other hand, the clothes-drying rod 6 is also positioned at the center of the top plate 3 in the width direction C for preventing the shaking, whereby the remote-control light-receiving unit 2 is provided directly above the clothes-drying rod 9.
Since 1 is located, the remote control operation can be performed from any direction in the room without being blocked by the clothesline 9.

On the other hand, as shown in FIGS. 1 and 2, the control unit case 8 for accommodating the control unit is formed in a flat shape, and when the control unit case 8 is vertically arranged, it is located at a plurality of upper end surfaces. Further, a screw hole portion 35 (FIG. 2) fixed to the top plate 3 is provided. In the control unit case 8, the flat control unit case 8 is oriented vertically so that the surface on which the screw hole portion 35 is provided faces upward, and the side surface of the control unit case 8 is the longitudinal direction of the top plate 3. It is attached to the top plate 3 so as to be located on a straight line connecting the drive unit case 6 and the transformer 10 in the state facing the direction A. At this time, the engagement portion 12 is provided on the upper surface of the control unit case 8 so as to project laterally, and when the control unit case 8 is attached to the top plate 3, the engagement portion 12 is provided.
By hooking on the upper end surface of the drive unit case 6, the flat control unit case 8 can be stably attached to the drive unit case 6. In addition, 35 in FIG.
Reference symbol a denotes a screw mounting portion on the top plate 3 provided on the upper surface of the drive unit case 6, and 90 and 91 in FIG. 4 are fitting concaves and convexes for laterally positioning the drive unit case 6 and the control unit case 8. It is a department.

By mounting the flat control unit case 8 on the straight line connecting the drive unit case 6 and the transformer 10 in the longitudinal direction of the top plate 3, the width B of the top plate 3 is reduced. However, the size of the control unit case 8 can be secured, and a large-area control board can be stored. Moreover,
Since the wire 11 for suspending the clothesline 9 is directly wound up by the drive unit 5 and is vertically lowered to drive the clothesline 9 up and down, as compared with the case where the conventional pantograph-type telescopic arm is folded and stored. The width dimension B of the storage box 2 can be reduced to reduce the size and weight, and the structure of the hanging mechanism for the clothesline 9 can be simplified. Therefore, the space for disposing the lifting and lowering device 1 is small, and further, the opening of the ceiling is not required to be reinforced by a reinforcing bar, etc. Therefore, the installation work does not become a large scale and the construction can be reduced. It is a thing.

Further, since the flat control part case 8 is provided with the engaging part 12 which engages with the drive part case 6,
When the control unit case 8 is mounted vertically on the top plate 3, the engaging portion 12 is hooked on the drive unit case 6 so that the control unit case 8 can be stably attached. In particular, since the drive unit case 6 has the DC motor 4 and the reduction gear built therein, the entire case is thick and has high strength. Therefore, the control unit case 8 containing the precise control parts therein is more stable. Therefore, the control parts can be effectively protected from vibration and the like, and high reliability can be maintained for a long period of time.

When the clothesline 9 is moved up and down, the remote controller is operated to send a remote control signal to the remote control light receiver 21 provided in the drive unit 5. At this time, the remote control light-receiving unit 21 is located at a substantially central portion of the top plate 3 in the width direction C, while the clothesline 9 also prevents the top plate 3 from shaking.
Since it is located in the center of the width direction C, the remote control light receiving unit 21 is located right above the clothesline 9, and therefore remote control operation can be performed from any direction in the room without being blocked by the clothesline 9. become able to. That is, the remote control light-receiving unit 21 moves from the central portion of the top plate 3 in the width direction C to the width direction C.
If the clothes-drying rod 9 is at the upper limit position P1 (FIG. 15), if the remote-control operating device is operated from the other side in the width direction C, the remote-control signal is blocked by the clothes-drying rod 9. Although the inconvenience of being unable to operate arises, by positioning the remote control light-receiving unit 21 at a position directly above the clothesline 9, that is, at the center position of the top plate 3 in the width direction C, the remote control receiver 21 can be used for the clothesline 9 from any direction in the room. Since the remote control signal can be sent to the remote control light receiving unit 21 without being blocked, the usability is improved.

Next, the drive unit 5 is provided with a position detecting means 13 for detecting the upper limit position P1 and the lower limit position P2 of the clothesline 9.
An example of the case in which is provided will be described. First, an example of detecting only the upper limit position P1 and the lower limit position P2 will be described, and subsequently, an example of detecting the drying position P3 will be described. Here, the upper limit position P1
Is the position where the clothesline 9 is stored, the lower limit position P2 is the position where the laundry is hooked on the clothesline 9 and hung, and the drying position P3 is the upper limit position P1 for the laundry hooked at the lower limit position P2. The position where the laundry is raised to the vicinity and dried, and the position where the laundry is further dried is the drying position P3 and the lower limit position P2.
It may be an intermediate position between and, and this intermediate position can be arbitrarily set by a stop switch.

First, in FIGS. 7 and 8, the position detecting means 13 for detecting the upper limit position P1 and the lower limit position P2 of the clothes-drying rod 9 is detected.
Is provided outside the drive unit 5 and rotates according to the winding and lowering of the wire 11.
And a photo interrupter 43 that detects the amount of rotation of the detection disk 15 is shown.
A plurality of mounting bosses 36 protruding from the outer surface of the drive unit case 6
The detection board 37 is attached to the
A detection disk 15 is rotatably arranged on the inner surface of 7. Reference numeral 38 in the drawing is a substrate pressing member. On the surface of the detection disk 15, a light shielding plate 39 having a substantially arc shape concentric with the rotation center of the detection disk 15 is provided in a protruding manner.
Further, the gear portion 40 formed on the outer peripheral surface of the detection disk 15
The pinion 42 fitted in the motor output shaft 41 protruding to the outside of the drive unit case 6 meshes therewith.

Here, when the wire 11 is raised and lowered, the pinion 42 is rotated by the motor output shaft 41 to rotate the detection disk 15. At this time, the clothesline 9 is at the lower limit position P2.
The light shield plate 39 does not pass between the photo interrupters 43 when it is in the middle position between the upper limit position P1 and the upper limit position P1, while the light shield plate 39 of the light shield plate 39 is lowered when the clothesline 9 descends and reaches the lower limit position P2. One end in the length direction is the photo interrupter 4
Entering 3 spaces, the clothesline 9 moves up and the upper limit position P1
The positional relationship between the light shield plate 39 and the photo interrupter 43 is set so that the other end of the light shield plate 39 in the lengthwise direction enters between the photo interrupters 43 when it reaches. Further, in this example, the photo interrupter 43 is a normally open type, and the light shield plate 39 is the photo interrupter 43.
The DC motor 4 can be driven when it does not pass through the space, and the driving of the DC motor 4 is stopped when the light shielding plate 39 enters between the photo interrupters 43.

In this way, the positions of the upper limit position P1 and the lower limit position P2 of the clothesline 9 are detected by the photo interrupter 43 and the detection disk 15, and the upper limit position P1 and the lower limit position P are detected.
By allowing the clothes-drying rod 9 to move up and down between the two, the position detection means 13 can prevent the clothes-drying rod 9 from being lowered or raised too much, which can enhance the safety of use and the detection disk 15 Since the clothes rod 9 rotates according to the amount of elevation, the upper limit position P1 and the lower limit position P2 of the clothes rod 9 can be accurately detected based on the rotation amount of the detection disk 15, and high reliability can be obtained. Further, since the photo interrupter 43 is configured so that the drive of the DC motor 4 is stopped when the light shield plate 39 enters between the photo interrupters 43, foreign matter other than the light shield plate 39 enters between the photo interrupters 43. Even at this time, since the drive of the DC motor 4 is stopped, malfunction can be prevented and safety can be ensured.

In FIG. 9, a notch 44 is provided on the end side of the light shield plate 39 provided on the detection disk 15, and a part 39a of the light shield plate 39 is cut out along the notch 44, The light shielding plate 39 is the photo interrupter 4
It is possible to delay the timing of entering the interval. By making the length M of the light shielding plate 39 variable in this way, the lifting range of the clothesline 9, particularly the height of the lower limit position P2, is made variable. For example, the ceiling height D (Fig. 15) is 24
There are 00 mm and 2700 mm, and by cutting out a part 39a of the light shielding plate 39 at 2700 mm, the lower limit position P2 of the clothesline 9 can be moved upward according to the ceiling height D, for example, 2400 mm. Will be able to adapt to the height of. As a result, it is not necessary to change the drive range of the DC motor 4 and the ceiling height D can be easily accommodated.

10 to 12 show the case where the position detecting means 13 for detecting the upper limit position P1 and the lower limit position P2 is a differential detecting means. In this example, the case where two detection disks 15A and 15B having different rotation ratios are used is shown. The motor output shaft 41 is shown in FIGS.
As shown in FIG. 3, the first gear 46 and the second gear 47 having different gear ratios are attached, and the third gear 4 meshing with the first gear 46 is attached to one end of the support shaft 45 parallel to the motor output shaft 41.
8. The second detection disk 15B is attached to the other end of the support shaft 45, and a fourth gear 49 meshing with the second gear 47 is provided between the third gear 48 of the support shaft 45 and the second detection disk 15B. An integral part of the first detection disk 15A is rotatably fitted to the support shaft 45 via the bearing 50. A slit hole 52 having a narrow width in the circumferential direction is cut out at one location on the outer circumference of the first detection disk 15A, and a long hole 51 having a wide width in the circumferential direction is formed in the outer circumference of the second detection disk 15B. Has a cutout. The motor output shaft 41 allows the two detection disks 15A, 15
B rotates at different rotation ratios, and the clothesline 9 moves to the lower limit position P.
2 and when the upper limit position P1 is reached, the slit hole 52 and the long hole 51 are aligned with each other, and the photo interrupter 4
3 is detected and the drive of the DC motor 4 is stopped. That is, when the first gear 46 and the second gear 47 having different gear ratios are rotated by the motor output shaft 41,
The rotation of the third gear 48 meshing with the first gear 46 causes the second gear
Detection disk 15B rotates, while the first detection disk 15A rotates due to the rotation of the fourth gear 49 that meshes with the second gear 47. At this time, the gear ratios of the first gear 46 and the second gear 47 are different. Therefore, one of the first detection disk 15A and the second detection disk 15B rotates so that one of them is faster and the other is later. For example, the motor output shaft 41
During the rotation of several times, one of the detection disks 15A and 15B rotates 8 times and the other rotates 8 × (2/3). Then, when the clothesline 9 reaches the lower limit position P2, the slit hole 52 and the long hole 51 overlap each other on one end side in the length direction of the long hole 51 provided in the second detection disk 15B, and the signal from the photo interrupter 43 is generated. When the driving of the DC motor 4 is stopped at the same time, and the clothesline 9 is raised to reach the upper limit position P1, the slit hole 52 has the slit hole 52 and the long hole 51 at the other end side in the length direction of the long hole 51. Are overlapped with each other, and the drive of the DC motor 4 is stopped by the signal from the photo interrupter 43.

Thus, the positions of the upper limit position P1 and the lower limit position P2 of the clothes-drying rod 9 are detected by the photo interrupter 43 and the two detection disks 15A and 15B, and between the upper limit position P1 and the lower limit position P2. By driving and controlling the clothes-drying rod 9 with, it is possible to prevent the clothes-drying rod 9 from being lowered or raised too much, and to improve the safety of use. Moreover, since the size of the detection disks 15A and 15B can be reduced as a whole by combining the two detection disks 15A and 15B, the position detection means 13 provided in the drive unit 5 can be made compact. .

Further, as described above, the photo interrupter 4
3 and the light shielding plate 39 are not limited to the optical detection method. For example, as shown in FIGS. 13 and 14, the position detection means 13 includes a detection disk 15 and a potentiometer 53, and the wire 11 is wound up. It is also possible to use a potentiometer 53 to electrically detect the amount of rotation of the detection disk 15 that rotates in accordance with the lowering.

Next, an example of setting the drying position P3 between the upper limit position P1 and the lower limit position P2 of the clothesline 9 will be described. In FIGS. 1 to 4, 17, and 18, the upper limit position P1 and the lower limit position P2 are optically detected by the photo interrupter 43 and the detection disk 15 with the light shielding plate 39, and drying is performed using the volume resistor 54. The case where the position P3 is electrically detected is shown. In this example, the drying position P3 is
As shown in FIG. 15 (b), the volume resistor 54 is set at a position slightly lower than the upper limit position P1, and in order to set the drying position P3, a volume resistor 54 whose resistance value is electrically changed by rotation is used. Has been. Here, the control unit controls the driving unit 5 to automatically stop at the clothes-drying position P3 when the clothes-drying rod 9 moves up from the lower limit position P2. Further, the clothes-drying rod 9 automatically operates at the clothes-drying position P3. After stopping for a long time, the dry position P3 to the upper limit position P1 can be reached only when the up switch of the remote controller is pressed.
It is possible to raise it to. Table 1 below shows an example in which the position of the clothesline 9 is determined based on four positions (upper limit position, drying position, midway position, lower limit position).

[0034]

[0035]

[Table 1] Then, the clothes hanging rod 9 is equipped with a raising switch, a lowering switch, and a stop switch which is stopped in the middle of the remote controller.
In the case of raising and lowering, when the clothesline 9 is lifted from the lower limit position P2 shown in FIG. 15 to the clotheshanging position P3, the wire 11 is taken up when the lift switch is pressed once, and the clothesline 9 starts to rise. At this time, the detection disk 15 is moved by the motor output shaft 41 through the pinion 42.
Starts to rotate, and a predetermined rotation amount of the detection disk 15 (a rotation angle when the clothesline 9 reaches the drying position P3) is detected by the volume resistor 4, and the control unit stops the drive of the DC motor 4 based on this. Then, the clothesline 9 automatically stops at the drying position P3. Therefore, even if the user forgets to press the stop switch at the drying position P3 while operating the remote controller or leaves the place for business, the clothesline 9 will automatically move at the predetermined drying position P3. It will stop. Also, from the drying position P3 to the upper limit position P
In order to raise it to 1, it is necessary to keep pressing the raising switch, so when the clothesline 9 is stored up to the upper limit position P1, the end of the clothesline 9 is caught on, for example, the opening of the ceiling or the decorative cover, It can be prevented from hitting. In other words, the clothes-drying rod 9 has a structure that the user must check when the clothes-drying rod 9 moves up to the upper limit position P1. This makes it possible to prevent a mistake in storing the clothes-drying rod 9 such as soiling the laundry. It is a thing.

FIG. 19 shows a case where a limit switch 55 is used instead of the photo interrupter 43, and the upper limit position P1 and the lower limit position P2 are detected by combining the limit switch 55 and the detection disk 15. In this example, the movable piece of the limit switch 55 is arranged so as to face the light shield plate 39 of the detection disk 15, and when the clothesline 9 reaches the lower limit position P2, one end in the length direction of the light shield plate 39 is the limit switch 55. When the clothesline 9 reaches the upper limit position P1, the other end of the light shield plate 39 in the length direction pushes the movable piece of the limit switch 55.

In still another embodiment, if the order of the signals from the photo interrupter 43 and the volume resistor 54 detected during lifting is different, the controller determines that the lifting operation of the clothesline 9 is abnormal, and the DC It is desirable to stop the driving of the motor 4. For example, Table 1 above
In, the clothesline 9 is moved from the lower limit position P2 to the upper limit position P.
When it is increased to 1, in a normal condition, the input of the photo interrupter 43 becomes H → L → L → H, and the comparator input of the volume resistor 54 becomes L → L → H → H, and conversely from the upper limit position P1 to the lower limit. When lowering to the position P2, the input of the photo interrupter 43 is H → L → L → H.
And the comparator input of the volume resistor 54 is H →
The sequence becomes H → L → L, and the order of these signals is stored in the control unit in advance. Then, when the order of the input signals is different, the control unit determines that the lifting / lowering operation of the clothesline 9 is abnormal and stops driving the DC motor 4. For example, when a child hangs on the clothes-drying rod 9 and the clothes-drying rod 9 cannot be lifted, it is possible to avoid the situation in which the DC motor 4 is forcibly driven to cause a failure. Further, even if the DC motor 4 is being driven, the position detection signal is not detected even after a predetermined time elapses, or when the clothes rod 9 goes from the upper limit position P1 to the lower limit position P2, it is caught on the way and dried. Even when the position P3 cannot be detected, the driving of the DC motor 4 is stopped as an abnormality, and it becomes more effective in detecting an abnormality in the lifting operation of the clothesline 9.

As yet another embodiment, the control unit is as shown in FIG.
As shown in 0, when the operation of the output of the DC motor 4 is repeated many times continuously in a short time, it is regarded as a mischief, and the mischievous escape mode for invalidating the operation is entered, and further overload is caused. It is set to enter standby mode when detected. Here, in FIG. 20, is the end of initial setting, continuous operation by mischief, time over of mischievous evacuation mode ,, ′, ″ is up switch input ,, stop switch input, overload detection, etc. Input, 'indicates no rise switch input.

First, as a condition for entering the mischievous evacuation mode, when the operation switch is frequently input at a certain interval within a predetermined time and the elevating operation by the motor is repeated, this mode is entered. For example, motor output ON / OFF is 1
This is a case where the operation is repeated 30 times or more at intervals within minutes. At this time, for example, a 1-minute timer is started when the motor output is turned off, and when the motor output is turned on again before the 1-minute timer times up, the counter is incremented by 1 and the 1-minute timer is stopped. After that, when the motor output is turned off, the 1-minute timer starts again. After that, the count is repeated each time the motor output is turned on before the 1-minute timer times up. Then, when the count number reaches 30, for example, the mischievous escape mode is entered. At this time, the operation of the up and down switches is invalidated and the motor output is turned off.
Keep on. That is, during the input processing in the mischievous retreat mode, the input of the ascending switch, the descending switch, and the stop switch is not accepted, and the motor output is not made. The counter is cleared when the time of the 1-minute timer is up. Then, after 5 minutes elapse in the mischievous escape mode, the mode shifts to the standby mode.

When an overload is continuously detected, the standby mode is entered. Then, when the overload is repeated 5 times at intervals of 30 seconds or less, the mischievous escape mode is entered.
For example, when detecting overload and shifting to this mode,
Start the 30 second timer. If the overload is detected again before the 30 second timer times up, the counter is incremented by 1 and the 30 second timer is reset to start the cat. Then, when the number of counts reaches 5, for example, the mischievous save mode is shifted to the standby mode. And 30
When the second timer times up (when there is no overload detection before the 30 second timer times up), the counter is cleared at time UP.

As described above, by setting the mischievous retreat mode for detecting the mischief or the overload and stopping the motor output, it is possible to prevent the failure of the lifting and lowering apparatus 1 from occurring.

Next, examples of measures for preventing overload and vibration of the clothesline 9 and measures for dealing with the ceiling height will be described. First, in FIG. 21, the cord body 16 having a weak tensile strength is attached to the tip of the wire 11 for suspending the clothesline 9,
It shows a case where the and the clothesline 9 are connected. In this example, a ring-shaped hook 60 is attached to the lower end of the wire 11, and the cord body 16 hooked on the hook 60 is connected to a rod hook 61 attached to the clothesline 9. Therefore, for example, when a child hangs on the clothesline 9 or the clothesline 9
When the end of the clothes-drying rod 9 is caught on the opening of the ceiling, the cover for makeup, or the like while being stored in the upper limit position P1, the string 16 breaks first, so that the clothes-drying rod 9 It is possible to prevent deformation and damage,
It is possible to prevent the occurrence of motor failure due to overload.

In FIG. 22, the length adjusting member 17 is attached to the tip of the wire 11, and the lower limit position P2 of the clothesline 9 (see FIG. 1).
The case where the height of 5) is made variable is shown. In this example, the length adjusting member 17 has upper and lower multi-stage mounting holes 61, and the lower end of the wire 11 is screwed into one of the mounting holes 61, while the rod is attached to the end of the clothesline 9. The hook 61 is screwed to the lower end of the length adjusting member 17, and the height of the clothesline 9 is changed by changing the position of the attachment hole 62.
It is possible to easily adjust the height of the lower limit position P2 of the clothesline 9 in accordance with the ceiling height without changing the amount of elevation.

FIG. 23 shows a modification of the length adjusting member 17, in which an engaging portion 65 for engaging the hooking hook 64 attached to the lower end of the wire 11 is provided on the inner surface of the openable / closable cover body 66.
On the other hand, a rod attaching portion 67 for screwing a rod hook 61 attached to the end of the clothes rod 9 is provided at the lower end of the cover body 66. The height of the lower limit position P2 of the clothesline 9 can be easily adjusted by locking the hooking hook 64 of the wire 11 to one of the upper and lower locking parts 65.

24 and 25 show a case where the soft rubber 18 is attached to the tip of the clothesline 9 suspended by the wire 11. As an example of the shape of the soft rubber 18, FIG.
4 and FIG. 25, there are shown cap shapes that can be fitted to the ends of the clothesline 9 having different shapes. In the figure, 70 is an engaging groove, 71 is an engaging convex portion, and 61 is a rod hook. By attaching the soft rubber 18 to the tip of the clothes-drying rod 9 in this manner, for example, the end of the clothes-drying rod 9 is used as a ceiling opening or a makeup cover while the clothes-drying rod 9 is rising to the upper limit position P1 (FIG. 15). Even if it gets caught, the end portion of the clothesline 9 can be protected by the soft rubber 18.

FIGS. 26 to 28 show the case where the damping material 19 is built into the clothesline 9 suspended by the wire 11. As the damping material 19, the powdery material 1 shown in FIG. 27 is used.
It may be either 9a or the fluid 19b shown in FIG. Here, if the clothesline 9 is hung only by the wire 11, vibration and shaking are likely to occur, and there is no sense of stability at the drying position, and it is troublesome that the laundry shakes. However, in this example, Since the vibration damping effect of the vibration damper 19 can reduce the vibration and sway of the clothesline 9, the laundry can be held stationary, and the vibration damper 19 cannot be seen from the outside, so It does not spoil the appearance.

[0047]

As described above, according to the first aspect of the present invention, in the storage box which is attached to the opening of the ceiling and which is opened downward, the drive unit using the DC motor as a drive source and the drive unit It is a lifting and lowering device that stores a control unit that controls the control unit and a transformer that supplies a direct current to a DC motor, and a wire that hangs a clothesline can be moved up and down by a drive unit and stored in a storage box. age,
The top plate of the storage box is formed in a rectangular shape in a plan view, and a drive unit case that houses the drive unit and a transformer are attached along the longitudinal direction of the top plate, and a flat control unit case that houses the control unit is installed. Since the side surface is oriented in the longitudinal direction of the top plate and is attached to the top plate so as to be located on the straight line connecting the drive unit case and the transformer, the flat control unit case is driven in the longitudinal direction of the top plate. By installing on the straight line connecting the case and the transformer, it is possible to secure the size of the control case while reducing the width of the top plate.
A large area control board can be stored. Moreover, since the clothesline is hung and supported by the wire, the structure of the clothesline hanging mechanism is simplified and the width of the storage box is reduced compared to the case where the conventional pantograph-type telescopic arm is folded and stored. The size and weight can be reduced. Therefore, the space for arranging the lifting and lowering device is small, and further, the opening of the ceiling is not required to be small and it is not necessary to reinforce with a reinforcing bar, etc., so that the installation work is not troublesome and the construction work can be achieved.

In addition to the effect of claim 1, the invention according to claim 2 is such that, in addition to the effect of claim 1, the flat control part case is engaged with a drive part case mounted on the top plate adjacent to the control part case. Since the portion is provided, even if the flat control unit case is mounted vertically on the top plate, the stable mounting state of the control unit case can be obtained by the engagement with the drive unit case. In particular, the drive unit case has a built-in DC motor, reduction gear, etc., so the entire case is thick and strong, so a flat control unit case that houses precise control parts inside is the drive unit case. This makes it possible to mount the control parts in a stable manner, so that the control parts can be effectively protected from vibrations and the like, and high reliability can be maintained for a long period of time.

In addition to the effect of claim 1, the invention according to claim 3 is provided with a remote-control light-receiving part for remote operation in the drive part, and the remote-control light-receiving part is located substantially at the center in the width direction of the top plate. Since the drive unit is attached to the top plate to prevent the clothesline from swinging, when the clothesline is positioned in the center of the topboard in the width direction to prevent the clothesline from swaying, the remote control light receiver will be located approximately above the clothesline. Therefore, the light can be received from any direction of the room without being blocked by the clothesline.

Further, in addition to the effect of claim 1, the invention of claim 4 is provided with a position detecting means for detecting the uppermost upper limit position and the lowermost lower limit position of the clothes rod in the driving part, Since the clothes-drying rod is drive-controlled between the position and the lower limit position, it is possible to prevent the clothes-drying rod from being excessively lowered or raised by the drive unit by the position detection means, and it is possible to enhance the safety of use.

According to a fifth aspect of the present invention, in addition to the effect of the fourth aspect, the position detecting means provided in the drive section is:
Since it consists of a detection disc that rotates according to the winding and lowering of the wire and a unit that detects the amount of rotation of the detection disc, it is possible to accurately detect the upper limit position and the lower limit position based on the amount of rotation of the detection disc. The device can be made highly reliable.

In addition to the effect of claim 4, the invention according to claim 6 sets a drying position between the upper limit position and the lower limit position of the clothesline, and the drive unit moves the clothesline up from the lower limit position. It is controlled so that it will automatically stop at the drying position when you do so, in case the user forgets to press the stop switch at the drying position during the lifting operation of the clothes rod, or if he / she leaves the place due to business. Even if there is, the clothesline will automatically stop at the predetermined drying position, so there is no need to worry about accidentally rising from the drying position to the upper limit position, which could contaminate the laundry or the clothesline on the ceiling. It is possible to prevent from being caught in the opening or the decorative cover.

According to the invention of claim 7, in addition to the effect of claim 1, a wire body having a low tensile strength is attached to the tip of the wire for hanging the clothesline, and the string body and the clothesline are connected. , For example, when a child hangs on the clothesline or when the clothesline is moved to the upper limit position and stored in the storage box, the end of the clothesline is caught in the ceiling opening or the makeup cover. As described above, even when an external force is applied to the clothesline, it is possible to prevent the clothesline from being deformed or damaged by cutting the string body first.

In addition to the effect of the first aspect of the invention, the length adjusting member is attached to the tip of the wire to make the height of the lower limit position of the clothesline variable, so that the drive is possible. This makes it possible to easily adjust the height of the lower limit position of the clothesline according to the ceiling height without changing the amount of lifting and lowering of the wire by the section.

According to the invention of claim 9, in addition to the effect of claim 1, since a soft rubber is attached to the tip of the clothes rod suspended by a wire, for example, while the clothes rod is rising to the upper limit position. Even if the end of the clothesline is caught in the opening of the ceiling or the decorative cover, the end of the clothesline can be protected by the soft rubber.

According to the invention of claim 10, in addition to the effect of claim 1, since a damping material is built into the clothes-line suspended by the wire, the clothes-line is suspended by the wire. Even in the case of instability, the vibration damping effect of the damping material can reduce the vibration and sway of the clothesline, so the laundry can be held stationary and the damping material cannot be seen from the outside. It does not spoil the appearance of the clothesline.

[Brief description of drawings]

1A is a side view showing an example of an embodiment of the present invention, and FIG. 1B is a plan view.

FIG. 2 is a plan view illustrating a connection state between the drive unit case and the control unit case of the above.

FIG. 3 is a side view of FIG.

FIG. 4 is an exploded view of the same drive unit case and control unit case before engagement.

5A is an explanatory view of the internal structure of the drive unit case, and FIG. 5B is a sectional view of a worm gear.

FIG. 6 is an explanatory view of a wire raising / lowering operation of the above.

FIG. 7 is a side view illustrating an example of the above position detecting means.

8 is a cross-sectional view taken along the line EE of FIG.

9A is an explanatory view of another embodiment, and FIG. 9B is a front view seen from the FF direction of FIG. 9A.

FIG. 10 is an explanatory diagram of another embodiment of the position detecting means.

11 is a plan view of FIG.

12A and 12B are explanatory diagrams related to the detection disk of FIG.

FIG. 13 is an explanatory diagram of still another embodiment of the position detecting means.

14 is a sectional view taken along line GG of FIG.

FIG. 15 (a) shows the upper limit position of the above-mentioned clothesline,
(B) is a figure which shows a drying position, (c) is a figure which shows a lower limit position.

FIG. 16 is an explanatory diagram of a relationship among an upper limit position, a lower limit position, and a drying position in the above.

FIG. 17 is an explanatory diagram of still another embodiment of the position detecting means.

18 is a cross-sectional view taken along the line I-I of FIG.

FIG. 19 is an explanatory diagram of still another embodiment of the position detecting means.

FIG. 20 is an explanatory diagram of a mischievous evacuation mode and a standby mode.

FIG. 21 (a) is an explanatory diagram of still another embodiment, and FIG.
[Fig. 4] is an enlarged view of a J portion in (a).

FIG. 22 is an explanatory diagram of still another embodiment.

FIG. 23A is an explanatory view of still another embodiment, and FIG.
[Fig. 6] is a diagram showing a state where the cover body of (a) is closed.

FIG. 24A is an explanatory view of still another embodiment, and FIG.
FIG. 4 is an explanatory view of a state where soft rubber is attached.

FIG. 25 (a) is an explanatory diagram of still another embodiment, and FIG.
FIG. 4 is an explanatory view of a state where soft rubber is attached.

FIG. 26 is an explanatory diagram of still another embodiment.

27A is an explanatory view of the vibration damping material of FIG. 26, and FIG. 27B is a sectional view of FIG.

28A is an explanatory view of another example of the vibration damping material of FIG. 26, FIG.
(B) is sectional drawing of (a).

FIG. 29 is an explanatory diagram of a conventional example.

FIG. 30 (a) is an explanatory view of a state in which a conventional telescopic arm is extended, and (b) is an explanatory view of a state of being folded.

[Explanation of symbols]

1 Lifting and drying equipment 2 storage boxes 3 Top plate 4 DC motor 5 Drive 6 Drive case 7 control unit 8 Control case 9 clothesline 10 transformers 11 wires 12 Engagement part 13 Position detection means 14 15 Detection disk 16 string 17 Length adjustment member 18 Soft rubber 19 damping material 21 Remote control receiver A Longitudinal direction of the top plate B width dimension C width direction D ceiling height P1 upper limit position P2 lower limit position P3 drying position

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriyuki Kitachi, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Kenji Adachi, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) ) Inventor Takasaku Inoue 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (56) Reference JP 10-179991 (JP, A) JP 10-46965 (JP, A) JP 10 −231660 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) D06F 57/12 B66D 1/12 B66D 1/60

Claims (10)

(57) [Claims] 1. A drive unit using a DC motor as a drive source, a control unit for controlling the drive unit, and a DC current supplied to the DC motor in a storage box that is attached to an opening in the ceiling and opens downward. A lifting and lowering device for storing a transformer and a wire for suspending a clothesline, which is vertically moved by a drive unit to be freely stored in a storage box, and a top plate of the storage box is formed in a rectangular shape in plan view. A drive unit case for accommodating the drive unit and a transformer are attached along the longitudinal direction of the top plate, and the side surface of the flat control unit case for accommodating the control unit is directed in the longitudinal direction of the top plate and the drive unit case and An elevating and lowering device which is mounted on a top plate so as to be located on a straight line connecting with a transformer. 2. The elevating clothesline according to claim 1, wherein the flat control unit case is provided with an engaging portion which is adjacent to the control unit case and engages with a drive unit case attached to the top plate. apparatus. 3. A remote control light-receiving unit for remote operation is provided in the drive unit, and the drive unit is attached to the top plate so that the remote-control light-receiving unit is located at a substantially central portion in the width direction of the top plate. The lifting and lowering apparatus according to claim 1. 4. A position detecting means for detecting an uppermost upper limit position and a lowermost lower limit position of a clothesline are provided in a drive unit, and drive control of the clothesline is performed between the upper limit position and the lower limit position. The lifting / drying apparatus according to claim 1. 5. The position detecting means provided in the drive unit comprises a detecting disk which rotates in response to winding and winding of the wire, and means for detecting the amount of rotation of the detecting disk. Lifting and drying equipment. 6. A drying position is set between an upper limit position and a lower limit position of the clothes-drying rod, and the driving unit is controlled to automatically stop at the drying position when the clothes-drying rod moves up from the lower limit position. The lifting / drying apparatus according to claim 4, wherein: 7. The lifting / descending clothes-drying device according to claim 1, wherein a string body having a low tensile strength is attached to a tip of a wire for suspending the clothes-drying rod, and the string body and the clothes-drying rod are connected to each other. 8. The lifting / descending clothes-drying apparatus according to claim 1, wherein a length adjusting member is attached to a tip of a wire for suspending the clothes-drying rod so that the lower limit position of the clothes-drying rod can be changed. 9. The lifting and lowering apparatus according to claim 1, wherein a soft rubber is attached to a tip of a clothesline suspended by a wire. 10. The lifting and lowering apparatus according to claim 1, wherein a damping material is built into the inside of the clothesline suspended by a wire.