JPH0226443Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cord winding device for a vacuum cleaner in which a power cord is manually wound around a pair of cord hooks.

[Prior art] This type of cord winding device is known from Utility Model Application No. 54-30774.
However, in any case, it is equipped with a pair of L-shaped cord hooks, and the power cord is wrapped around them, and either one of the cords is At least a part of the hook is rotatable by 180 degrees or more, and the cord hook is rotated 180 degrees to retract the cord-retaining portion of the cord hook, thereby making it possible to remove the wrapped power cord. was. Furthermore, the same technology as in each of the above-mentioned publications is disclosed in a cord support device for an upright type vacuum cleaner described in Japanese Utility Model Application Publication No. 56-153354.

Furthermore, Japanese Utility Model Application Publication No. 53-70667 discloses that in an upright vacuum cleaner, there is a gap between an L-shaped cord hook fixed to the handle and a lever-shaped cord hook rotatably pivoted to the handle. describes a technique for wrapping a power cord, and the rotatable cord hook has one end bent into an L shape, a wheel attached to the tip, and the other end engaged with the top surface of the handle. It is made of a wire rod with sections formed therein, and the middle section is pivotally connected to the handle so that it can be rotated in the vertical direction.

[Problem that the invention attempts to solve] However, Publication of Utility Model Application Publication No. 30774/1986, Publication of Utility Model Publication No. 58-
In the cord winding devices described in Publication No. 41744 and Japanese Utility Model Application Publication No. 56-153354, the distance between the cord-wrapping parts of the cord hook around which the power cord is actually wound is constant, regardless of the rotation of the cord hook. Since it is unchangeable, the power cord will not come loose even if the cord hook is rotated. Therefore, when the power cord is tightly wrapped around the pair of cord hooks, there is a problem in that the power cord cannot be easily removed.

In addition, with the technology disclosed in Japanese Utility Model Application Publication No. 53-70667, when the lever-shaped cord hook is pulled downward to remove the power cord, the cord tends to get caught on the L-shaped tip that supports the wheel. In addition to the problem, the pivot of the lever-shaped cord hook is located off the straight line connecting this L-shaped tip and the fixed cord hook, so the power cord cannot be connected to the L-shaped end.
When the cord-like tip and the fixed cord hook are tightly wrapped, the winding force imparts a rotational moment to the lever-shaped cord hook that is greater than the force that holds the lever on the handle. ,
There was a problem in that there was a high risk that the cord hanging fitting would rotate inadvertently, making it impossible to wind the cord.

An object of the present invention is to provide a cord winding device for a vacuum cleaner that can easily remove a power cord wound around a pair of cord hooks and can reinforce the cord hooks.

[Means for Solving the Problems] In order to achieve the above object, the cord winding device of the present invention is a vacuum cleaner equipped with a pair of cord hooks, over which the power cord is wound. In the cord winding device, at least one of the cord hooks is attached so as to be rotatable by 180 degrees or more along the periphery of its central axis, and
The cord hanger has a base portion rotatably attached to the mounting surface, and a cord wrapping surface integrally projecting from the base portion and having a semicircular cross section and substantially perpendicular to the mounting surface. The cord winding part and a substantially L-shaped section in cross section that is provided integrally overhanging the cord winding surface at the tip of the cord winding part and forming a cord winding groove between the cord winding part and the mounting surface are wrapped around the cord. an extending portion for preventing the cord from coming off, formed together with the cord-wrapping portion; and an extending portion formed integrally between the base portion and the back surface of the cord-wrapping portion and tapered toward the tip in the protruding direction of the cord-wrapping portion. The cord wrapping portion is provided so as to be shifted in the extending direction of the extending portion with a line passing through the center of rotation of the cord hook as a boundary, and the cord wrapping portion of the cord wrapping portion is provided with a The width of the line segment extending toward the extending portion on the front side is made larger than the width of the line segment extending from the line segment on the back side of the cord wrapping portion.

[Function] The power cord is wound around a pair of cord hooks, and the rotatable cord hook rotates around its central axis, and the center of rotation is on a straight line connecting the pair of cord hooks. Since the power cord is wound around the pair of cord hooks, a rotational moment is applied to the rotatable cord hook, causing the cord hook to rotate. do not have. In addition, in order to remove the wrapped power cord, it is sufficient to rotate one rotatable cord hook 180 degrees so that its extending portion faces the other cord hook. Then,
The cord wrapping part that was shifted in the extending direction of the extension part with the line passing through the center of rotation of the rotated cord hook as a boundary is now shifted so as to approach the other cord hook side, and at that time, The width of the line segment on the back side of the cord wrapping portion in the direction opposite to the other cord hook is smaller than the deviation of the cord wrapping portion in the state before the rotated cord hook is rotated. Therefore, the distance between the cord wrapping portions of the pair of cord hooks becomes smaller than the same distance in the wrapped state, and the power cord can be loosened. In addition, if the power cord is still caught on the cord hook even after loosening the power cord as described above, check that the cross section of the cord hook rotated 180 degrees is connected to the back of the cord wrapping part, which has a semicircular arc shape, and the power source. Just insert your finger between the power cord and the power cord and pull it out. At that time, although there is a rib protruding from the back of the cord wrapping part, the rib has a tapered tip, so it is less likely to get in the way of inserting your finger, and therefore it is easier to pull the power cord. Makes removal work easier. Moreover, since the above-mentioned ribs reinforce the cord wrapping part from the back side, each time a power cord is wrapped around this wrapping part, the cord wrapping part deforms at its base, and this repetition causes fatigue. It is possible to prevent the risk of damage caused by

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In the figure, 1 is the main body of the vacuum cleaner, and in this example, the main body case 2 and the dust collection case 3 are detachably connected.
It is formed from. In addition, in the figure, 4 and 5 are detachable engagement parts formed at the lower part of both cases 2 and 3, and 6 is a clamp, and this clamp 6 is attached to a clamp receiver 7 provided at the upper part of the main body case 2. By engaging, both cases 2 and 3 are connected.

An electric blower 8 is built into the main body case 2. The dust collection case 3 has a suction port 9, and a dust collection filter 10 is detachably built into the rear part. The vacuum cleaner main body 1 can be used in a handheld manner using the handle 11 of the main body case 2, and can also be used in a handheld or shoulder-carrying manner using a belt 12 attached to the handle 11.

A pair of cord hooks 1 are attached to the vacuum cleaner body 1.
3 and 14 are provided protrudingly. These cord hooks 1
3 and 14 serve also as legs of the vacuum cleaner body 1 in this embodiment. One cord hook 13 is attached to the lower surface (mounting surface) of the main body case 2 so as to be rotatable over 180 degrees. This cord hook 13 is
A cord wrapping portion having a disc-shaped base portion 13d rotatably attached to a mounting surface, and a cord wrapping surface _13a1 integrally protruding from the lower surface of the base portion 13d and substantially perpendicular to the mounting surface. 13a, and a substantially L-shaped section in cross section that is provided integrally overhanging from the cord winding surface 13a ₁ at the tip of the cord winding portion 13a and forms a cord winding groove 16 between it and the above-mentioned mounting surface. It includes an extending part 13b formed together with the part 13a to prevent the cord from coming off, and a rib _13a2 integrally projecting across the lower surface of the mounting surface and the back surface of the cord wrapping part 13a.

At least most of the cord wrapping portion 13a is provided so as to be located in the direction in which the extending portion 13b extends. That is, the cord wrapping portion 13a is provided so as to be shifted toward the extending direction of the extending portion 13b with respect to the line segment A-A passing through the rotation center P of the cord hook 13. Thereby, the width of the cord wrapping surface 13a ₁ side of the cord wrapping portion 13a from the line segment A-A in the extending direction is determined by the cord wrapping portion when the cord hook 13 is rotated 180 degrees. It is configured to be larger than the width of the back side of 13a extending from the line segment A-A in the extending direction. Also,
The cross section of the cord wrapping part 13a has a semicircular arc shape with a large curvature, and the rib _13a2 protruding from the back surface thereof is tapered toward the tip in the protruding direction of the cord hook 13.

In addition, the other cord hook 14 is attached to the dust collection case 3.
It is integrally protruded from the bottom surface (mounting surface). This cord hook 14 also has a cord winding surface 14a ₁ and has an extending section 14b integrally provided at the tip of the cord winding section 14a, which has a semicircular arc shape with a large curvature in cross section. It is formed into a letter shape. In addition, 1
4a ₂ is a rib.

A power cord 15 is wound around these pair of cord hooks 13 and 14. In addition, 13c and 14c in the figure are cord hooks 13 and 14c, respectively.
Cord holding grooves are formed as necessary in cord holding grooves 14, into which a part of the end of the winding of the power cord 15 is detachably fitted and held.

When this vacuum cleaner is not in use, the power cord 1
5 is wound and held over a pair of front and rear cord hooks 13 and 14 located at the cord winding position shown by solid lines in the figure. During this winding, the rotatable cord hook 13 will not rotate inadvertently.
In other words, the cord hook 13 is rotatably provided along the direction around its central axis, and
Since the rotation center P is located on the straight line connecting the pair of cord hooks 13 and 14, the cord hook is No rotational moment is applied to 13. Therefore, even if the power cord 15 is tightly wound, the cord hook 13 will not rotate, and therefore the power cord 15 can be easily wound.

To remove the wrapped power cord 15, the cord hook 13 at the position shown by the solid line in FIGS. 1 and 2 is rotated 180 degrees as shown by the two-dot chain line. Then, the extension part 1 of the cord hook 13
3d is the cord wrapping portion 1 of the power cord 15
The power cord 15 is removed from the cord wrapping surface 13a ₁ by retreating from the position where the part wrapped around the cord 3a is prevented from coming off. At the same time, the cord wrapping part 13a is disposed closer to the other cord hanging part 14 due to the positional shift based on the eccentricity of the cord wrapping part 13a with respect to the rotation center P of the cord hanging part 13. That is, as shown in FIG. 2, the distance l between the cord wrapping parts 13b and 14b of both cord hooks 13 and 14 can be made smaller than the distance L when the cord hook 13 is located at the position shown by the solid line. Therefore, the power cord 15 wrapped around both cord hooks 13 and 14 naturally loosens according to the above-mentioned distance difference, so that the power cord 15 can be easily removed from the cord hook 13 without having to pull the power cord 15 strongly. be able to. After this, the power cord 15 may be removed from the other cord hook 14.

In addition, if the power cord 15 is still caught on the cord hook 13 even after loosening the power cord 15 as described above, the back side of the cord wrapping part 13a of the cord hook 13 rotated 180 degrees and the power cord 15 All you have to do is insert your finger between them and pull out the power cord 15.

At that time, a rib 1 is provided on the back surface of the cord wrapping portion 13a.
3a ₂ Although this rib 13a ₂ is provided protrudingly,
Since the tip has a tapered shape, it does not get in the way of inserting a finger, and therefore, the work of disconnecting the power cord 15 can be facilitated.

Moreover, the rib 13a ₂ is connected to the cord wrapping portion 13.
Since the part a is reinforced from the back side, even if the power cord 15 is tightly wound around this wrapping part 13a, there is no fear that the cord hook 13 will break. In other words, each time the power cord 15 is wound, the cord wrapping portion 13a tends to deform at its root portion, but this repetition of deformation can be suppressed by the reinforcing action of the ribs _13a2 , so that the root portion becomes fatigued. It is possible to prevent the risk of damage caused by

In addition, in this embodiment, both cord hooks 13, 14
Since the cord winding parts 13a and 14a have a large curvature, the power cord 15 to be wound thereon has a large curvature.
There is no sudden bending and damage can be prevented.

Although the above-mentioned embodiment is constructed as described above, the present invention can also be applied to an upright type vacuum cleaner in which a cord hook is provided protruding from the main body of the vacuum cleaner and the handle attached to the vacuum cleaner body via a handle pipe. Not only can it be implemented, but it can also be implemented as a cylinder-shaped vacuum cleaner. Further, in the present invention, both of the pair of cord hooks may be provided rotatably.

[Effect of the invention] In the cord winding device of the invention described above, at least one of the pair of cord hooks around which the power cord is wound is rotated 180 degrees along the periphery of its central axis. The cord hanger is rotatably mounted, and the cord hanger has a base part that is rotatably mounted on the mounting surface, and a cord that integrally projects from the base part and has a semicircular cross section and is substantially perpendicular to the mounting surface. A cord winding part having a winding surface, and a roughly L-shaped cross section that is provided integrally overhanging the cord winding surface at the tip of the cord winding part and forming a cord winding groove between it and the mounting surface. an extending portion for preventing the cord from coming off, which is formed together with the cord wrapping portion; and an extending portion that is integrally provided across the base portion and the back surface of the cord wrapping portion and extends toward the tip in the protruding direction of the cord wrapping portion. and a rib formed in a tapered shape as the cord wraps, and the cord wrapping portion is provided so as to be shifted in the extending direction of the extending portion with a line passing through the rotation center of the cord hook as a boundary,
With a configuration in which the width of the line from the line segment on the cord-wrapping surface side of the cord-wrapping part in the direction of the extension part is larger than the width of the line from the line segment on the back side of the cord-winding part, the power supply To easily wrap a power cord across a pair of cord hooks without causing the rotatable cord hook to rotate inadvertently when wrapping the cord. At the same time, by rotating at least one of the cord hooks 180 degrees around its central axis when the power cord is wrapped, the distance between the pair of cord wraps can be increased from the same distance when the power cord is wrapped. Since the power cord can be made smaller and loosened, even if the power cord is tightly wrapped around a pair of cord hooks, the power cord can be easily removed from the cord hook. Furthermore, the reinforcing effect of the tapered ribs prevents the cord wrapping part of the rotatable cord hook from being damaged due to fatigue at its base, and also prevents the power cord from getting caught in the rotatable cord hook. When removing the power cord with your fingers, the tapered ribs are less likely to get in the way when you insert your fingers between the back of the cord wrapping part and the power cord, making it easier to remove the power cord. I can do it.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal side view, FIG. 2 being a bottom view, and FIG. 3 being a partial perspective view. 13, 14...Cord hook, 13a, 14a...
...Cord winding part, 13a ₁ ...Cord winding surface, 13
a ₂ ...Rib, 13b...Extension part, 13d...Base part, 16...Cord winding groove, P...Rotation center, A
-A...Line segment.

Claims (1)

[Scope of utility model registration request] In a cord winding device for a vacuum cleaner equipped with a pair of cord hooks and configured to wrap a power cord around the cord hooks, at least one cord hook can be rotated by 180 degrees or more along the direction around its central axis. At the same time, this cord hook is attached to a base part that is rotatably attached to the mounting surface, and a cord winding part that integrally projects from this base part and has a semicircular cross section and is approximately perpendicular to the mounting surface. A cord winding portion having a surface, and a substantially L-shaped section in cross section that is integrally provided at the tip of the cord winding portion and overhangs from the cord winding surface and forms a cord winding groove between it and the mounting surface. An extending portion for preventing the cord from coming off is formed together with the cord wrapping portion, and is integrally provided across the base portion and the back surface of the cord wrapping portion, and is tapered toward the tip in the protruding direction of the cord wrapping portion. and a rib formed in the shape of a rib, and the cord wrapping portion is provided so as to be shifted in the extending direction of the extending portion with a line passing through the center of rotation of the cord hook as a boundary. A vacuum cleaner characterized in that a width from the line segment on the cord-wrapping surface side in the direction of the extension part is larger than a width from the line segment on the back side of the cord-wrap part. Cord winding device.