JP2000185195A - Elevatable clothes-drying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a clothes drying apparatus smaller and restrict the descending action of a wash-line pole at a normal lower limit position to improve the durability of a spur gear train. SOLUTION: A pinion 15 with a stopper 16 is put in the shaft part of either one of spur gears composing a spur gear train 13 for speed reduction. A stopper gear 17, which is provided with a stopper holder 18 and different from the pinion 15 in gear ratio, is engaged with the pinion 15. The gear ratio between the pinion 15 and the stopper gear 17 is set, so that when a wash-line pole 9 elevates normally, the stopper 16 does not touch to the stopper holder 18, and when the wash-line pole 9 descends at least below the lower limit position, the stopper 16 touches the stopper holder 18 to stop the descending motion of the wash-line pole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating and drying apparatus.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 14 and 15, a pair of left and right pantograph telescopic arms for hanging a clothesline 9 in a storage box 2 which is attached to a ceiling opening 85 and opened downward. By attaching the upper end of the arm 80 and winding or rewinding the wire 11 by rotating the rotary drum by the motor 4, the pantograph-type telescopic arm 80 can be housed in the storage box 2 or extended below the storage box 2. There is known an elevating and drying apparatus 1 'in which a clothesline 9 can be moved up and down in a room.

[0003]

However, when the conventional pantograph-type telescopic arm 80 is used, the storage box 2 is used to fold and store the telescopic arm 80.
However, there is a disadvantage that the size becomes large. In addition, conventionally, in a state in which the clothesline 9 is stopped at the lower limit position of the normal operation, for example, when the clothesline 9 is pulled down by hand, the rotating drum rotates and the wire 11 is completely released from the rotating drum, There is a problem in that the entanglement with the rotating drum or the like causes malfunction. In addition, a speed reduction mechanism composed of a spur gear train is usually provided between the motor 4 and the rotating drum, and the drying rod 9 is stopped at the lower limit position of the normal operation. When is pulled downward by hand, an excessive load is applied to the spur gear train, and there is also a problem that the durability of the spur gear train decreases.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to reduce the size and to restrict the lowering operation of a clothesline at a normal lower limit position. It is an object of the present invention to provide an elevating and drying apparatus capable of improving the durability of a gear train, and to provide an elevating and drying apparatus capable of restricting a lifting operation of a clothesline at a normal upper limit position.

[0005]

According to the present invention, a wire 11 for hanging a clothesline 9 is connected to a rotating drum 3 rotated by a motor 4 and the wire 11 is rotated by rotating the rotating drum 3. A hoisting and lowering device that raises and lowers a clothesline 9 by winding or unwinding the motor, wherein the motor output shaft 6 and the drum rotating shaft 7 are connected via a spur gear train 13 for reduction, and a spur gear train is provided. 13 is provided with a pinion 15 provided with a stopper 16 on a shaft portion of any one of the spur gears 12 a to 12 b, and provided with a stopper receiver 18 and a pinion 1.
The gear 17 for the stopper having a different gear ratio from that of the pinion 5
5, the stopper 16 does not hit the stopper receiver 18 when the clothesline 9 is normally moved up and down.
The gear ratio between the pinion 15 and the stopper gear 17 is set such that the stopper 16 hits the stopper receiver 18 and prevents the descending movement of the clothes-line 9 when at least falls below the lower limit position. With this configuration, even when the clothesline 9 is at the lower limit position, when the hand is pulled down, the stopper 16 hits the stopper receiver 18 and the rotation of the pinion 15 stops. The rotation cannot be performed any more, and there is no fear that the wire 11 is completely unwound from the rotating drum 3 and becomes entangled with the rotating drum 3, so that there is no possibility of causing malfunction. Moreover,
Since the rotation of the drum rotation shaft 7 is stopped by the stopper gear 17, the load on the reduction spur gear train 13 interposed between the drum rotation shaft 7 and the motor output shaft 6 is reduced, and the spur gear train 13 is reduced. Can guarantee the strength. further,
Since the structure in which the clothesline 9 is hung by the wire 11 is employed, the entire apparatus can be made more compact as compared with the conventional case where the pantograph is folded and stored.

The gear ratio between the pinion 15 and the stopper gear 17 is set so that the stopper 16 comes into contact with a stopper receiver 18 when the clothes rod 9 is raised above the upper limit position, thereby preventing the clothes rod 9 from moving upward. In this case, if the clothesline 9 does not stop at the upper limit position of the normal operation, the rotation of the pinion 15 is stopped by the stopper gear 17 and the drum rotation shaft 7 cannot rotate any more. Accordingly, it is possible to prevent the overload on the spur gear train 13 due to the laundry rod 9 further rising beyond the upper limit position and being caught by the opening edge of the ceiling, the decorative cover, or the like.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. As shown in FIG. 2, a hoisting / drying apparatus 1 has a drive box 2 mounted in a downwardly opened storage box 2 attached to an opening of a ceiling. A DC motor 4 (hereinafter abbreviated as a motor) as a source, a control unit 50 for controlling the motor 4,
A power transformer 10 for supplying a direct current to the motor 4 is housed, and a wire 11 for hanging the clothesline 9 is wound around the rotating drum 3. Pole 9
Can be moved up and down. In FIG. 2, 51 is a pulley around which the wire 11 is wound, and 52 is a remote control light receiving unit.

As shown in FIGS. 3 and 4, a spur gear train 13 for reduction is interposed between the motor output shaft 6 and the drum rotating shaft 7. In this example, the spur gear train 13 is
A pre-stage spur gear 12a provided on the motor output shaft 6,
It comprises a spur gear 12b at the subsequent stage provided on the drum rotating shaft 7 and a plurality of intermediate spur gears 12c. The torque of the motor output shaft 6 is reduced by the spur gear train 13 and transmitted to the drum rotating shaft 7. ing.

Here, any one of the spur gear trains 13
Shaft 1 of two spur gears (in this example, the latter spur gear 12b)
4, a pinion 15 as shown in FIG. 1, FIG. 3 and FIG.
Is attached. A stopper gear 17 having a different gear ratio from the pinion 15 is engaged with the pinion 15. The shaft 17a of the stopper gear 17 is supported by the gear case 19 in parallel with the shaft 15a of the pinion 15. The pinion 15 is integrally provided with a convex stopper 16, and the stopper gear 17 is integrally provided with a convex stopper receiver 18 for receiving the stopper 16. In this example, as shown in FIG. 13, the distal end surface 18a of the stopper receiver 18 is brought into contact with the side surface 16a of the stopper 16. When the clothesline 9 is normally moved up and down, the stopper 16 is moved to the stopper receiver 18.
The gear ratio between the pinion 15 and the stopper gear 17 is set so that the stopper 16 contacts the stopper receiver 18 at both the lower limit position and the upper limit position of the clothes-line 9. For example, the gear ratio is set such that the pinion 15 makes eight rotations while the stopper gear 17 makes one rotation. Of course, the gear ratio is not limited to 1: 8, and it is essential that the gear ratio be such that the stopper 16 hits the stopper receiver 18 at least at the lower limit position of the clothesline 9.

The stopper gear 17 is provided with position detecting means 20 for optically detecting the lower limit position and the upper limit position of the clothesline 9. Here, the upper limit position refers to a position P1 (FIG. 2) for storing the clothesline 9 in the storage box 2, and the lower limit position refers to a position p2 (FIG. 2) for hanging the laundry on the clothesline 9; The laundry is allowed to dry at an intermediate position between the lower limit and the lower limit. The position for drying the laundry can be arbitrarily set by a stop switch of the remote controller.

In this example, the position detecting means 20 is provided as shown in FIG.
As shown in FIG. 7, a light shielding plate 39 protruding from one side of the stopper gear 17 in a substantially arc shape concentric with the stopper gear 17 and a normally open type photo interrupter 43 fixed to the gear case 19a side. It is configured.
The light shield plate 39 does not pass between the photointerrupters 43 when the clothesline 9 is normally moved up and down, and the motor 4 can be driven. When the light shield plate 39 reaches the lower limit position and the upper limit position, the light shield plate 39 moves between the photointerrupters 43. Then, the motor 4 is stopped.

When the motor 4 is driven, the rotating force of the motor output shaft 6 is reduced by the spur gear train 13 and transmitted to the drum rotating shaft 7, so that the rotating drum 3 rotates and the wire 1
By winding or unwinding 1, the clothesline 9 moves up and down. At this time, the pinion 15 provided on the subsequent spur gear 12 b directly connected to the drum rotation shaft 7 rotates, and the stopper gear 17 meshing with the pinion 15 and having a different gear ratio has a lower speed than the pinion 15. Rotate. Here, FIGS. 5C to 5H show the positional relationship between the stopper 16 and the stopper receiver 18 at an intermediate position between the lower limit position and the upper limit position. Note that θ2 to θ7 in FIG. 5 are, for example, 40 ° to 240 °.

Thereafter, when the clothes-line 9 descends to the lower limit position, the light shielding plate 39 shown in FIG. 3 enters between the photointerrupters 43 and the driving of the motor 4 stops, and the clothes-line 9 stops at the lower limit position. At this stage, as shown in FIG. 5B, the stopper 16 and the stopper receiver 18 have not yet contacted. Θ1 in FIG. 5B is, for example, 20 °. Thereafter, when the clothesline 9 is stopped at the lower limit position of the normal operation, if the hand is pulled down, the pinion 15 slightly rotates to cause the pinion 15 to rotate as shown in FIGS. 1 (a) and 5 (a). The stopper receiver 18 of the stopper gear 17
The rotation of the pinion 15 stops because the side surface 16a of the stopper 16 of the pinion 15 abuts on the front end surface 18a of the pinion 15, and the drum rotation shaft 7 cannot rotate any more.

As described above, any one of the spur gear trains 13 constituting the drive section of the wire hanging type lifting / drying apparatus 1 can be used.
A pinion 15 with a stopper 16 on two spur gears 12b,
This pinion 15 has stopper receivers 18 with different gear ratios.
The lower limit of the clothesline 9 is restricted (for example, 5).
cm), even if the hand is pulled down at the lower limit position or the weight of the laundry is added, FIG.
As shown in (b), there is no need to worry about the wire 11 being completely unwound from the rotating drum 3 or being tangled with the rotating drum 3, and there is no possibility of causing malfunction.
Here, in order to increase the tensile strength of the wire 11, FIG.
As shown in (a), the lower limit (or upper limit) of the clothesline 9
In the above, it is desirable to set the mounting position of the wire 11 so that the rotary drum 3 stops in a state where one end of the wire 11 is wound around the rotary drum 3 about half a turn.
This can eliminate the possibility of causing an operation failure.

In addition, since the stopper gear 17 stops rotation of the drum rotating shaft 7, the drum rotating shaft 7
The load applied to the spur gear train 13 for reduction connected to the spur gear train 13 is reduced, and the strength of the spur gear train 13 can be ensured. Further, the wire hanging type has an effect that the whole apparatus can be made compact as compared with the conventional case where the pantograph is folded and stored.

Also, when the clothes-line 9 rises to the upper limit position, the light shielding plate 39 shown in FIG. 3 enters between the photointerrupters 43 and the driving of the motor 4 is stopped. Stop. At this stage, as shown in FIG. 6A, the stopper 16 and the stopper receiver 18 have not yet contacted. 6A is about 275 °, θ
9 is about 283 °. Then, when the clothesline 9 is not stopped at the upper limit position of the normal operation and the clothesline 9 is further lifted up due to the runaway of the control unit 50, the pinion 15 is slightly rotated to be as shown in FIG. 1 (b),
As shown in FIG. 8, the stopper receiver 1 of the stopper gear 17 is used.
When the side surface 16a of the stopper 16 of the pinion 15 comes into contact with the front end surface 18a of the pinion 8, the rotation of the pinion 15 stops, and the drum rotation shaft 7 cannot rotate any more. Therefore, it is possible to prevent the clothesline 9 from further rising beyond the upper limit position and being caught by the opening edge of the ceiling or the decorative cover when the storage is raised (when the storage rod 2 is stored in the storage box 2).
The overload on the spur gear train 13 is eliminated and the spur gear train 1
3 can be improved in durability. In addition, the end surface 18 of the stopper receiver 18 is provided on the side surface 16a of the stopper 16.
a, the rotational force of the stopper 16 shown by the arrow a (a ') in FIG. 1 can be reliably received by the entire stopper receiver 18 as shown by the arrow b (b'). Can be reliably stopped, the load transmitted to the spur gear train 13 can be reliably received by the stopper gear 17, and the durability of the spur gear train 13 is further improved.

In the above embodiment, the drum rotating shaft 7
The pinion 15 is attached to the shaft of the subsequent spur gear 12b directly connected to
Has been described, but the mounting position of the pinion 15 is not limited to the rear spur gear 12b, but any one spur gear (the intermediate spur gear 12c or the preceding spur gear 12a) of the reduction spur gear train 13. It may be.

FIG. 9 shows a structure in which the output shaft of the motor 4 and the rotating shaft of the rotary drum 3 are connected via a spur gear train 13 constituting a speed reduction mechanism. The figure shows a case in which a resistance urging means 21 for transmitting a resistance torque to the constituent spur gear 12a is provided. Other configurations are the same as those of the embodiment of FIG.

In this example, the resistance urging means 21 includes a leaf spring 22 fixed to the gear case 19, a sliding member 23 sliding on the leaf spring 22, and a shaft portion 24 of the sliding member 23. The spur gear 12a is fitted between the sprocket gear 12a and the gear hole 25. The spur gear 12a idles when the clothes rod 9 is lifted, and generates the resistance torque between the leaf spring 22 and the sliding member 23 when the clothes rod 9 is lowered.
And a one-way clutch 26 for transmitting the information.

Here, a spur gear train 1 constituting a speed reduction mechanism
3, a one-way clutch 26 is provided on the preceding spur gear 12a. The one-way clutch 26 is configured by a roller that transmits the resistance torque between the leaf spring 22 and the flange portion 28 of the sliding member 23 shown in FIG. 9 in only one direction, and automatically rotates in the opposite direction. I have. When the spur gear 12a rotates in the direction in which the clothesline 9 rises, for example, in the direction of the arrow a in FIG. When the gear 12a rotates, for example, in the arrow direction b, the spur gear 12a is configured to rotate together with the sliding member 23. Both ends of the bow-shaped leaf spring 22 are supported on the gear case 19 side, and a sliding member 23 is provided on the top of the leaf spring 22.
Are pressed against each other, and the spring force of the leaf spring 22 is applied in the axial direction of the sliding member 23 to generate a frictional force. A support hole 29 is formed in the center of the leaf spring 22, and the tip of the shaft portion 24 of the sliding member 23 is rotatably supported by the support hole 29.

Thus, even when the load of the laundry or the like when the clothesline 9 is at rest is greater than the resistance torque of the motor 4 (FIG. 8) and the resistance torque of the spur gear train 13, the leaf spring 22 and the sliding member Since the resistance torque generated between the laundry rod 23 and the transmission rod 23 is transmitted to the spur gear 12a via the one-way clutch 26, the position of the clothesline 9 can be reliably maintained. Therefore, with the passage of time, the spur gear train 13
There is no need to worry about the clothespin 9 rotating down.

When the clothesline 9 is lowered, the sliding member 23 and the spur gear 12
a rotates cooperatively, and the resistance torque generated between the leaf spring 22 and the sliding member 23 is transmitted to the spur gear 12a. That is,
The resistance torque is set between the flange portion 28 of the sliding member 23 and the leaf spring 2.
This resistance torque is applied to the spur gear train 13 via the one-way clutch 26, so that when the clothespin 9 descends, the motor 4 does not have the power generation effect due to the potential energy of the load. Therefore, since a voltage drop due to the back electromotive force can be prevented, a voltage for burning carbon (soot) generated in the brush inside the motor 4 can be secured, and a current short circuit or the like can be prevented from occurring in the brush portion. Thereby, the reliability and durability of the motor 4 can be improved.

On the other hand, when the clothesline 9 is lifted, the one-way clutch 26 causes the spur gear 12a to be free with respect to the sliding member 23. Load can be prevented.

In this embodiment, since the resistance torque is generated by the leaf spring 22, the variation of the spring constant of the leaf spring 22 is small, and therefore, the resistance torque can be easily managed. The sliding portion between the leaf spring 22 and the sliding member 23 may be filled with grease or the like. In this case, it is possible to eliminate the generation of frictional noise between the leaf spring 22 and the sliding member 23, thereby ensuring quietness. The type of grease is not particularly limited,
A wide range can be selected. Moreover, since the resistance urging means 21 can be easily constituted by the leaf spring 22, the sliding member 23 and the roller type one-way clutch 26, the cost and size of the apparatus can be reduced as compared with the case where an electromagnetic clutch is used. Can be achieved.

Also, the case where the one-way clutch 26 and the like constituting the resistance urging means 21 are provided on the preceding spur gear 12a of the spur gear train 13 has been described. Of course, the intermediate spur gear 12c or the latter spur gear 12c is provided. It may be provided on the spur gear 12b. Further, it is also possible to provide the one-way clutch 26 and the like on the plurality of spur gears 12a to 12b.

10 to 13 show another embodiment of the resistance urging means 21. FIG. In this example, the resistance urging means 21 includes a coil spring 30 having one end fixed at a predetermined position and the other end inserted into a shaft member 31 attached to the spur gear 12a.
When the clothespin 9 rotates, it rotates in the spreading direction X and idles with respect to the spur gear 12a, and when the clothesline 9 descends, it rotates in the narrowing direction Y and transmits a resistance torque to the spur gear 12a. In this example, the spur gear 12a
The coil spring 30 is fitted into the tip of the shaft member 31 fitted in the gear hole 32 of the first embodiment. As shown in FIGS. 12 and 13, the outer peripheral shape of the shaft member 31 and the inner peripheral shape of the gear hole 32 are each cut into a D-shape, and the shaft member 31 and the spur gear 12 a rotate together. It has become.
As shown in FIG. 10, a cylindrical portion 33 having an outer diameter slightly smaller than the inner diameter of the coil spring 30 is provided at the other end of the shaft member 31.
The inner peripheral surface of 0 is elastically contacted. Here, the coil spring 30 is tightened in the direction Y in which the coil spring 30 narrows when the spur gear 12a rotates in the arrow direction a when the clothes rod 9 descends, and the arrow direction of the spur gear 12a when the clothes rod 9 rises. At the time of rotation b, the coil spring 30 is relaxed in the direction X in which the coil spring 30 spreads. The coil spring 30 is connected to the spring case 3 fixed to the gear case 19a side.
4 (FIG. 11) and the coil spring 3
One end of the coil spring 30 is bent at a substantially right angle on the circumference of the coil, and by inserting the bent portion 35 into a hole provided in the spring case 34, the rotation of the coil spring 30 is restrained at one end of the coil spring 30. I have.

When the clothesline 9 is at rest, the load of the laundry or the like depends on the resistance torque of the motor 4 and the spur gear train 1.
Even if the resistance torque exceeds 3, the coil spring 3
0 rotates in the tightening direction, and this resistance torque is transmitted to the spur gear 12a, so that the position of the clothesline 9 can be reliably maintained. Therefore, there is no fear that the spur gear train 13 rotates due to the weight of the clothespin 9 over time and the clothespin 9 is lowered.

When the clothesline 9 is lowered, the coil spring 30 rotates in the narrowing direction Y.
A friction torque is generated between the inner peripheral surface of the shaft member 31 and the outer peripheral surface of the shaft member 31 and transmitted to the spur gear 12a. Therefore, FIG.
As in the embodiment of FIG.
In this way, the power generation effect due to the potential energy of the load does not occur, the voltage for burning carbon (soot) generated by the brush inside the motor 4 can be secured, and the short-circuit of the brush can be prevented from occurring. Thereby, the effect that the reliability and durability of the motor 4 can be improved can be obtained.

On the other hand, when the clothesline 9 is lifted, the coil spring 30 rotates in the spreading direction X, so that the spur gear 12a is free with respect to the coil spring 30 and the resistance torque applied to the spur gear train 13 is small. Overload can be prevented.

Further, the resistance urging means 2 is provided by the coil spring 30.
1 has the effect of reducing the number of parts and facilitating assembly, and has the effect of reducing the number of coil springs 3.
Since the resistance torque is generated by using 0, the variation of the spring constant of the coil spring 30 is small, so that the effect of easily managing the resistance torque can be obtained.

The coil spring 3 is attached to the spur gear 12a at the preceding stage.
Although 0 and the like are provided, it is a matter of course that the intermediate spur gear 12c and the subsequent spur gear 12b may be provided. Further, the coil spring 30 and the like are provided on only one spur gear 12a, but may be provided on a plurality of spur gears 12a to 12b.

[0032]

As described above, according to the first aspect of the present invention, a wire for hanging a clothesline is connected to a rotating drum rotated by a motor, and the wire is wound or wound by rotating the rotating drum. An elevating clothes-drying device that raises and lowers a clothes-line by returning it, and connects a motor output shaft and a drum rotation shaft via a spur gear train for reduction, and any of the spur gears constituting the spur gear train. A pinion with a stopper is provided on the shaft of one of the spur gears. A stopper gear is provided, and a gear for a stopper having a gear ratio different from that of the pinion is engaged with the pinion. The stopper hits the stopper holder when the clothesline falls at least below the lower limit position, preventing the clothespin from descending. Since the gear ratio between the pinion and the gear for stopper is set so that it can be cut, even if the clothesline is at the lower limit position, when the hand is pulled down, the stopper hits the stopper receiver and rotation of the pinion stops. In addition, the rotating shaft of the drum cannot be rotated any more, and there is no fear that the wire is completely unraveled from the rotating drum and becomes tangled with the rotating drum, and there is no possibility of causing malfunction. In addition, since the rotation of the drum rotating shaft is stopped by the gear for the stopper, the load applied to the reduction gear train interposed between the drum rotating shaft and the motor output shaft is reduced, ensuring the strength of the spur gear train. it can. Furthermore, the structure in which the clothesline is hung by wires is adopted, so that the entire device can be made more compact compared to the conventional system in which the pantograph is folded and stored, and a pinion with a stopper is provided on any one of the spur gear trains. The lower limit of the clothesline can be regulated by a simple structure in which a stopper gear having a stopper receiver having a different gear ratio is engaged with the pinion.

According to the invention of claim 2, in addition to the effect of claim 1, the pinion and the pinion are arranged so that the stopper hits the stopper receiver when the lifting pole rises from the upper limit position of the drying pole, and the lifting movement of the drying pole can be prevented. Since the gear ratio with the stopper gear is set, when the clothesline does not stop at the upper limit position of the normal operation, the rotation of the pinion is stopped by the stopper gear, and the drum rotation shaft cannot be further rotated. Therefore, it is possible to prevent the laundry pole from further rising beyond the upper limit position and being caught on the opening edge of the ceiling, the decorative cover, or the like, thereby overloading the spur gear train, and improving the durability of the spur gear train. be able to.

[Brief description of the drawings]

1A and 1B show an example of an embodiment of the present invention, in which FIG. 1A is a partially cutaway side view showing a state where a stopper hits a stopper receiver at a lower limit of a clothesline, and FIG. FIG. 6 is a partially cut-away side view showing a state where the abutment has hit a stopper receiver.

FIG. 2 (a) is a partially omitted side view of the laundry pole according to the first embodiment,
(B) is a plan view.

FIG. 3 is a plan view illustrating the same spur gear train.

FIG. 4 is a front view illustrating the same spur gear train.

FIG. 5A is a diagram illustrating a state in which a stopper hits a stopper receiver when the clothes-line is further lowered from a lower limit position, and FIG. 5B is a diagram illustrating a stopper and a stopper receiver at a normal lower limit position of the clothes-line. Explanatory diagram of the positional relationship,
(C)-(h) is explanatory drawing of the positional relationship of the stopper and the stopper receiver at the time of the normal raising / lowering operation | movement of a clothesline.

FIG. 6A is an explanatory diagram of a positional relationship between a stopper and a stopper receiver at a normal upper limit position of a clothesline,
(B) is an explanatory view of a positional relationship between the stopper and the stopper receiver when the stopper further rises from the upper limit position.

FIG. 7A is an explanatory view showing a state in which a wire is wound around a rotating drum at a lower limit position of a clothesline, and FIG.
FIG. 4 is an explanatory diagram of a state where a wire is unwound from a rotating drum.

FIG. 8 is a front view illustrating the same spur gear train.

FIG. 9 is an exploded perspective view illustrating an example of the above-described resistance urging means.

FIG. 10 is an exploded perspective view illustrating another example of the above-described resistance urging means.

FIG. 11 is a plan view of a drive unit including the above-described resistance urging means.

FIGS. 12A and 12B are a side view and a rear view of the shaft member.

13 (a) and 13 (b) are a front view and a sectional view of the same spur gear.

14 (a) and 14 (b) are explanatory diagrams of a conventional elevating operation of a clothesline.

FIG. 15 is a front view of a conventional elevating / drying apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lifting and drying apparatus 3 Rotary drum 4 Motor 6 Motor output shaft 7 Drum rotating shaft 9 Clothesline rod 11 Wire 12 Spur gear 13 Spur gear train 15 Pinion 16 Stopper 17 Gear for stopper 18 Stopper receiver

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tetsuji Niiyama 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Hiroo Fukui 1048 Odaka Kazuma Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. ( 72) Inventor Kenji Adachi 1048, Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside the Matsushita Electric Works Co., Ltd.

Claims (2)

[Claims] 1. A hoisting / drying apparatus for connecting a wire for hanging a clothesline to a rotating drum rotated by a motor, rotating the rotating drum to take up or rewind the wire, thereby raising and lowering the clothesline vertically. , The motor output shaft and the drum rotating shaft are connected via a spur gear train for reduction, and any one of the spur gears constituting the spur gear train
A pinion with a stopper is provided on the shaft portion of the two spur gears, and a stopper gear having a stopper receiver and a gear ratio different from the pinion is engaged with the pinion,
During normal lifting and lowering of the clothesline, the stopper does not hit the stopper receiver, and the pinion and the stopper gear so that the stopper hits the stopper receiver when the clothesline descends at least below the lower limit position and prevents the lowering rod from moving downward. An elevating and drying apparatus characterized by setting a gear ratio. 2. A gear ratio between a pinion and a stopper gear is set so that the stopper hits a stopper receiver when the lifting pole rises from an upper limit position of the drying pole and prevents the lifting rod from moving upward. An elevating and drying apparatus according to claim 1.