JPS6113840B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an iron with a cord reel for use in general households.

Conventional Structure and Problems There are generally two types of cord reel devices: one in which the cord is manually reeled in, and the other in which the cord is reeled in using a spring device such as a mainspring and its biasing force. The latter type, which automatically retracts, is preferred in terms of ease of use. However, in small appliances such as irons, it is necessary to compactly store approximately 2 m of cords and reduce the size of the equipment. A pre-winding operation is essential to apply a biasing force to the drum using a spring device. In this case, the cord is already wrapped around the drum, so when either the cord case or the drum is rotated, the plug connected to the cord becomes loose, leaving the cord wrapped around the drum. Pre-winding must be done while maintaining the
As a result, the workability is poor, and the winding load tends to fluctuate easily, and the winding performance is not stable.

Purpose of the Invention In order to eliminate the above-mentioned conventional drawbacks, the present invention has a drum shape that allows easy pre-winding to apply winding force to the cord using a spring device.
To provide an iron with a cord reel that improves assembly workability, reduces variation in cord winding load, and has stable quality.

Structure of the Invention In order to achieve the above object, the present invention includes a base having a heater, a handle attached above the base, and a cord reel device for winding a cord. A cord case with a cord outlet in a part, a drum provided inside the cord case around which the cord is wound, a spring device that applies rotational force to the drum in one direction, and an electrical connection between the heater and the cord. The cord case is composed of a plurality of members, and one or more cords are arranged on the side wall of the winding drum. By forming the concave portion, assembly workability is improved and cord winding performance is stabilized.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is a base 3 having a heater 2, a cover attached to the base 1, 4 is a handle attached to the cover 3, and a detachable tank 5 is provided in front of the handle. Reference numeral 6 denotes a cord reel device attached to the stepped portion of the handle 4, which also serves as a support surface when the iron is placed in a free-standing state.

The cord reel device 6 includes a cord case 9 that accommodates the cord 7 and forms an outlet 8 for the cord 7 in a part thereof, and a cord case 1 made of a partially transparent material.
0 as an outer shell, and drums 11 and 12 provided inside the cord cases 9 and 10 for winding the cord 7, and a spring device 13 such as a mainspring that applies rotational force in one direction to the drums 11 and 12. , has a connecting device for connecting the cord 7 and the heater 2. The cord 7 preferably has a rubber insulated structure that is highly heat resistant and flexible and can withstand repeated pulling and wrapping operations over a long period of time. The cord 7 has a plug 14 at its tip protruding from the outlet 8. Third
As shown in FIGS. 4 and 4, this outlet 8 faces diagonally upward from the side and restricts the direction in which the plug projects. Furthermore, due to this restriction, the protruding height of the plug is made lower than the grip part 42 of the handle, so it does not feel awkward when holding the iron in your hand when the cord 7 is stored, and the height of the packaging box is also lower than that of the conventional iron. However, it can be made compact. Furthermore, this cord 7 can be pulled out to a length of approximately 2 m, and in order to be compactly accommodated in the space 15 created by the cord cases 9 and 10, it is necessary to arrange the cord 7 in a double row of, for example, 3 to 4 drums. 11 and 12. 16 and 17 are ring-shaped small electrode plates and large electrode plates fixed to the drum 11;
It is connected to one end of the wire by welding or other method. Since the small electrode plate 16 and the electrode plate 17 are always in contact with the sliding brushes 20 and 21 attached to the cord case 9, the contact surfaces must not be roughened by the cord connection. Therefore, as shown in FIGS. 5 and 6, each electrode plate has legs 18 and 19 for connection with the cord 7.
It has The legs 18 of the small electrode plate 16 face inward of the ring, and the legs 19 of the large electrode plate 17 face outward, so the size of the electrode plate is determined by the minimum outer diameter to maintain the insulation distance between the plates. It is enough. For example, if the legs 18 of the small electrode plate 16 were to be directed outwards from the ring, this configuration would be the best for maximizing the size since the large electrode plate would have to have a large diameter to maintain the insulation distance. Furthermore, foot 18 is drum 1
When the small electrode plate 16 is set on drum 1
It is located above the through hole 23 of the rotating shaft 22 of No. 1 and 12. If the end of the cord 7 is welded to this leg 18 and then bent in the direction E, the through hole 23
It is possible to downsize the electrode plate without blocking it. Furthermore, since this leg 18 is perpendicular to the rotating shaft 22 when welding the cord 7, the direction of movement of the electric welding electrode is axial, allowing for simple movement. This drum has an electrode plate 16,
17 and connect the cord 7, set the cord 7 along the inner wall of the drum 11, and connect the cord 7 to the drum 1.
The positioning of the drum 12 is matched to the positioning 24 of the drum 1, and the drum 12 is connected by screws 26 to form an integrated drum. The positioning 24, 25 is dimensioned so that the shaft 12a of the drum 12 fits into the through hole 23 of the drum 11 by a few millimeters and then starts to fit later, as shown in FIG. By doing so, positioning 2
4 and 25 can be easily fitted together by first fitting the shaft 12a and rotating the drums 11 and 12 about this shaft. Since it is only necessary to determine the fitting parts one by one, assembly is much easier than when fitting two parts at the same time. The sliding brushes 20 and 21 provided on the cord case 9 are each spring-biased to the electrode plate side and are in constant contact with each other, and the other ends connect the lead wires 27 from the cord case 9 to the handle 4 side and connect the lead plate 28. Heater 2 through
The boss 9a is attached to the cord case 9 by ultrasonic welding and crushing.

As shown in FIG.
A slope 9b is provided in the direction in which the lead wire is pulled out to facilitate welding by aligning the wires. This allows the lead wires 27 to be set on the sliding brushes 20, 21 without any gaps, making welding easier. Alternatively, instead of creating the slope 9a, the same effect can be obtained by bending the ends of the sliding brushes 20 and 21 as shown in FIG. When crushing by sonic welding, there is a risk that the bent part will break because it cannot withstand the ultrasonic vibrations. Therefore, a better method is to improve the ease of assembly by using the slope 9b.

The spring device 13 has a spiral shape, and its inner and outer ends are engaged with the cord case 10 and the drum 12 to apply rotational force to the drum 12 in one direction. and drum 11 coupled to drum 12
A recess 30 approximately the diameter of the cord is formed in the side wall 11a. Cord cases 9 and 10 are drum 1
Cord 7 and spring device 13 wound around 1 and 12
, large and small electrode plates 16 and 17 and sliding brushes 20 and 21
It is provided as a pair of members so as to surround the drum rotation shaft 22 and the rotation shaft 31, and is connected to each other by screws 32 or the like at the drum rotation shaft 22 and rotation shaft 31 parts. This drum rotating shaft 22 is fitted with the shaft 12a with a very small gap so that it can freely rotate smoothly. On the other hand, the rotating shaft 31
Since the diameter of the shaft 1 is smaller than that of the drum rotation shaft 22, the center deviation with the drum rotation shaft 22 and the error in the diameter are caused by the shaft 1.
It does not affect the smoothness of rotation of 2a. The cord case 10 is formed by two-color molding of a transparent resin window 33 and an opaque resin frame 34, as shown in the section H-H' in FIG. 10, and the window 33 is wrapped around the drums 11 and 12. The cord 7 occupies most of both sides of the cord case 10 so that it can be seen from the side. Like this, frame 34 and window 3
Since the parts 3 are integrated, there is no need for a complicated structure for mounting the window, there are fewer parts, and the assembly work is simple. Numeral 35 is a screw that connects the cord cases 9 and 10 above each other, and together with the screw 32 constitutes the cord reel device 6 as a unit. It is tightened from the cord case 9 side. Reference numeral 36 designates a plurality of stoppers provided on the inner circumferential wall of the drum 11, and the rotation of the drum 11 is restricted by a lock fitting 38 urged in the direction of arrow A by a spring 37. Reference numeral 39 denotes a winding button having a pressing portion 40 opposite to one end of the locking metal fitting 38, which is constantly urged by a spring 41 in a direction away from the locking metal fitting 38, and is pressed against the urging force. This allows the lock fitting 38 to be removed from the stopper 36 and the drums 11, 12 to be rotated. This winding button 39 is provided near the cord outlet 8 above the lock fitting 38 attached to the cord case 9, and is recessed at the same level or slightly lower than the surface of the handle 4 to prevent it from being pressed accidentally while using the iron. It's set.

Note that there is a hole above the lock fitting 38 for attaching a winding button 39, so the lock fitting 38 is attached to the cord case 9 through this hole.

The operation of the iron with a cord reel of the present invention constructed as above will be explained.

When the iron is not in use, the cord 7 is wound around drums 11 and 12 and compactly housed in the cord reel device 6, with only the plug 14 protruding from the outlet 8, as shown in FIG. When pulling out the cord 7, the drums 11 and 12 rotate in the direction of arrow C against the biasing force of the spring device 13 by holding the plug 14 and pulling it in the direction of arrow B.
At this time, the cord 7 may be pulled out in its entirety, or if the pulling is stopped at an appropriate length, at that point one of the plurality of stoppers 36 will be pulled to the locking fitting 38 or the cord will remain in the previously pulled out state. It can be done. Therefore, the length of the cord 7 pulled out from the cord reel device 6 can be freely adjusted.

When storing the cord 7, the take-up button 31 can be pressed. That is, since the drums 11 and 12 are constantly given a rotational force in the direction opposite to the arrow C by the spring device 13, the lock fitting 41 pushed by the pressing part 40 moves in the direction of the arrow D and is prevented from engaging with the stopper 36. When removed, the drums 11 and 12 rotate in the direction opposite to the direction of arrow C as described above, and this drum 1
The cord 7 can be housed while being wound around the cords 1 and 12 in double rows. In the present invention, as described above, the recess 30 having a diameter equal to or larger than the cord 7 is provided in the side wall of the drum 12. This is because it is necessary to wind the mainspring of the spring device 13 several times in advance in the direction C in Fig. 11 so that the cord 7 can be reliably wound even when it is pulled out a little. This is for taking it out of the case 10.
As shown in FIG. 11, the cord case 10 is designed to be compact and has a diameter only slightly larger than the diameter when the cord 7 is wound around the drums 11 and 12. Furthermore, the diameter of the side wall of the drum 12 is approximately the same as the diameter when the cord 7 is wound around the drums 11 and 12 so that the cord cases 11 and 12 do not touch the cord 7 internally when the cord 7 is wound up. . Therefore, when pre-winding, the plus 14 must be taken out of the cord case 10. However, as shown by the broken line in FIG. 11, if the cord side wall shape is circular as in the conventional case, the cord case 10 has a size equal to the cord side wall diameter plus the cord diameter. However, by partially providing this recess 30 and sandwiching the cord 7 in this recess 30, there is no need for a gap between the cord case 10 and the drum 11.
can be made smaller and the original code 7 on the side wall of the drum can be made smaller.
The purpose of avoiding contact with code cases 9 and 10 remains intact. Further, since the cord 7 is irregularly wound around the drums 11 and 12, it may not be wound evenly and may be wound overlappingly at the same portion. However, since the space 15 in the cord cases 9 and 10 is minimized in size to make the cord 7 double-rowed and compact, when the cord 7 is wound in multiple rows like this, The winding diameter of the cord 7 becomes large and comes into contact with the inner surfaces of the cord cases 9 and 10, resulting in a situation where the cord 7 stops midway through winding. In order to solve this situation, it is possible to make the cord case itself sufficiently large, but as mentioned above, the operability of small appliances such as irons that can be moved freely by hand is significantly impaired. , the code case must be made as small as possible to resolve this.

Furthermore, in the present invention, as described above, one cord case 10 is made of a transparent material and an opaque material, and a window is provided on the side of the cord case 10 so that the cord 7 wound around the drums 11 and 12 can be seen from the outside. It has been formed. Therefore, even if double winding occurs as described above, it can be easily confirmed through this window 33 that there is no malfunction, and furthermore, it is possible to completely store the cord 7 by pulling it out and winding it again. As a result, it is possible to realize a cord reel that is more compact than conventional concepts. Furthermore, cord 7 wrapped around the drum
is mostly surrounded by the cord cases 9 and 10, so that not only fine lint and cotton dust generated during storage but also during ironing will not get inside. It prevents electrical failures, improves usability when storing cords and reduces the labor involved, and improves operability when ironing. Also this code case 10
Since the window is made transparent, a transparent window can be constructed without adding any new parts, which is very rational and does not impair assemblability.

Effects of the Invention According to the present invention configured as described above, the pre-winding operation of the cord reel device when assembling the iron can be greatly improved by releasing the plug to the outside of the cord case, and furthermore, the pre-winding operation of the cord reel device when assembling the iron can be greatly improved. When storing the cord, it is extremely easy to store it by simply pressing the winding button, and
The cord case for accommodating the cord provided at the rear of the handle is also significantly smaller, making it easier to operate when ironing.

[Brief explanation of the drawing]

Fig. 1 is a side view of an iron with a cord reel according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the same essential parts,
Fig. 3 is a side view of the cord reel device, Fig. 4 is a view taken in the direction of arrow A in Fig. 3, Fig. 5 is a sectional view of the drum, Fig. 6 is a view taken in the direction of arrow C in Fig. 5, and Fig. 7. is a view in the direction of the X arrow in FIG. 5, FIG. 8 is a sectional view taken along line B-B' in FIG. 11 is an exploded perspective view showing the pre-winding state of the drum, FIG. 12 is a sectional view taken along D-D' in FIG. 5, and FIG. 13 is a sectional view taken along line D-D in FIG. 14 is a sectional view taken along line EE' and line FF' in FIG. 2. 1...Base, 2...Heater, 4...Handle,
6...Code reel device, 7...Code, 9,1
0...cord case, 11,12...drum, 1
1a... Side wall, 13... Spring device, 16... Small electrode plate (electrical connection device), 17... Large electrode plate (electrical connection device), 20, 21... Sliding brush (electrical connection device) ) 30... recess, 36... stopper (lock device), 38... lock fitting (lock device), 39... winding button.

Claims (1)

[Claims] 1. A base having a heater, a grip attached above the base, and a cord reel device for winding a cord, the cord reel device containing a cord and having a cord outlet in a part thereof, A drum provided inside the cord case around which the cord is wound, a spring device that applies rotational force to the drum in one direction, an electrical connection device between the heater and the cord, and a lock that regulates the rotational force of the drum. An iron with a cord reel, comprising a winding device and a winding button linked to the locking device, the cord case being composed of a plurality of members, and one or more recesses formed in the cord guide wall of the winding drum.