JP5076748B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a power cord winding device.

This type of conventional vacuum cleaner includes a power cord winder that winds the power cord in multiple stages (see, for example, Patent Documents 1 and 2).
JP-A-2-156921 JP-A-4-329920

  However, in the configuration of the conventional vacuum cleaner as described above, the power cords may overlap each other in the power cord winding device and cannot be pulled out, or the power cord winding device may be wound in multiple stages. As a result, the thickness of the vacuum cleaner itself was increased, and as a result, the height of the main body of the vacuum cleaner had to be increased.

  The present invention solves the above-described conventional problems, and provides a small vacuum cleaner capable of smoothly winding a power cord by effectively utilizing the shape and space of the main body of the vacuum cleaner. Objective.

In order to solve the above-described conventional problems, a vacuum cleaner according to the present invention includes a case body that is fitted to a vacuum cleaner body having a substantially circular outer shape, a bottomed cylindrical case body, and an opening surface of the case body. A power cord winding device comprising: a case comprising: a rotating reel provided rotatably within the case; and a spring spring for biasing the rotating reel in one direction , wherein the power cord winding device includes: The outer diameter of the vacuum cleaner main body is substantially the same, and the core portion of the rotary reel has a substantially circular shape when the power cord is wound once. A shape that gradually shifts to the inside of the wire diameter and gradually widens, and a plurality of rotating rollers that are rotatably held between the case body and the case cover are arranged evenly on the outside of the rotating reel, A source code which was constructed as wound on the reels in one stage spiral, it is possible to prevent the overlap of the power cord of the power cord winding in the device, so that it is smooth out the power cord . In addition, by arranging the rotating roller, it prevents the power cord from spreading out and touching the inner wall of the case body when winding the power cord, which occurs when the performance of the mainspring spring deteriorates and the urging force declines The contact resistance at the time of winding the power cord can be reduced, and the power cord winding property can be improved. In combination with the vacuum cleaner main body, the space of the vacuum cleaner main body can be used effectively and the height / outer diameter can be minimized.

  The vacuum cleaner of the present invention can prevent the cords from overlapping in the power cord winding device and smoothly put in and out the power cord, and can minimize the height and outer diameter of the main body of the vacuum cleaner. .

The first aspect of the present invention is a vacuum cleaner main body having a substantially circular outer shape, a case comprising a bottomed cylindrical case main body and a case cover fitted to an opening surface of the case main body, and rotatable in the case. A power cord winding device comprising a rotating reel provided and a spring for rotating and energizing the rotating reel in one direction is built-in, and the outer diameter of the power cord winding device and the outer diameter of the cleaner body are approximately The shape of the core portion of the rotary reel is the same as the shape of the power cord extended gradually by shifting the power cord lead-out portion inwardly by the wire diameter of the power cord so that the power cord is wound once. And a plurality of rotating rollers rotatably held between the case main body and the case cover are arranged evenly on the outer side of the rotating reel, so that the power cord is wound in a one-stage spiral shape. Which was constructed as wound, it is possible to prevent the overlap of the power cord of the power cord winding in the device, so that it is smooth out the power cord. In addition, by arranging the rotating roller, it prevents the power cord from spreading out and touching the inner wall of the case body when winding the power cord, which occurs when the performance of the mainspring spring deteriorates and the urging force declines The contact resistance at the time of winding the power cord can be reduced, and the power cord winding property can be improved. In combination with the vacuum cleaner main body, the space of the vacuum cleaner main body can be used effectively and the height / outer diameter can be minimized. In addition, by making the outermost shape of the power cord when the power cord is wound into a circle, the gap between the inner wall of the circular power cord winder and the power cord can be made uniform, and the power cord The outer shape of the winding device can be reduced.

The second invention, in particular, in the power cord winding device of the first invention, the storage position of the power plug when winding the power cord is the same surface as the winding surface of the power cord, The resistance can be reduced when the power cord is put in and taken out, and the operability / winding performance can be improved.

In the third invention, in particular, the power cord take-up device of the first or second invention has an outer diameter of 270 to 290 mm, and a power cord (5 m) generally used for a household vacuum cleaner. ) Can be stored smoothly.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The vacuum cleaner in the 1st Embodiment of this invention is demonstrated using FIGS.

  FIG. 1 is a plan view and a side view of the electric vacuum cleaner according to the first embodiment, FIG. 2 is a central sectional view of the electric vacuum cleaner, and FIG. 3 is a perspective view of a main part of a braking means of the electric vacuum cleaner. 4 is a plan view (with the case cover omitted) and a cross-sectional view of the power cord winding device of the vacuum cleaner, and FIG. 5 is an enlarged cross-sectional view of the power cord winding device.

  1 and 2, the vacuum cleaner main body 1 of the electric vacuum cleaner in the present embodiment is substantially circular, and the circular main body lower portion 1a is concentric with the vacuum cleaner main body 1 and has an outer shape of the vacuum cleaner main body 1. A power cord winding device 3 having an outer diameter substantially equal to the above is incorporated, and traveling wheels 2 are provided. In the present embodiment, the power cord winding device 3 winds a power cord 24 described later in a one-stage spiral shape.

  The traveling wheel 2 is arranged in the center of the lower part 1a of the main body and is arranged radially with the center wheel 4 being rotatable in the traveling direction (the direction in which the hose (not shown) is pulled), and the center wheel 4 as a center, Each of the five casters 5 is rotatable 360 degrees.

  In the present embodiment, the outer diameter of the power cord winding device is φ270 to φ290 mm. In addition, the outer diameter dimension of the portion of the vacuum cleaner body 1 above the power cord winding device 3 is the same as or larger than the outer diameter dimension of the power cord winding device 3.

Further, the center wheel 4 is urged downward (in the traveling surface direction) by a spring 6. The power cord winding device 3 is disposed at the upper stage of the traveling wheel 2, and the power plug 7 is disposed at the rear portion of the cleaner body 1. Furthermore, a dust collection chamber 9 having a dust collection bag 8 for storing dust is provided in front of the upper stage (upper part of the main body) of the power cord winding device 3, and an electric blower 10 for sucking dust is provided in the rear. The dust collection chambers 9 are respectively disposed and covered with a dust collection lid 11 that can be freely opened and closed.

  Next, the configuration of the power cord winding device 3 will be described with reference to FIGS.

  2 to 5, the power cord winding device 3 is configured such that a rotating reel 14 rotates in a case including a bottomed cylindrical case body 12 and a case cover 13 fitted to an opening surface of the case body 12. The arrangement is possible and is urged to rotate in one direction. The rotation bias of the rotary reel 14 is performed by a spring 15 arranged below the rotary reel 14. In addition, a braking surface 17 projecting in a direction perpendicular to the rotation surface 16 is formed integrally with the rotation reel 14 on the upper surface of the rotation reel 14 so that the braking surface 17 does not come into contact with other components. It is covered with a case cover 13 with a certain gap. However, a part of the braking surface 17 is exposed from the case cover 13, and the rotation of the braking surface 17 can be regulated by the braking means 18.

  The braking means 18 includes a rubber roller 19 that contacts the braking surface 17 and suppresses the rotation of the braking surface 17, a rotatable braking lever 20 for moving the rubber roller 19 away from the braking surface 17, and a rubber via the braking lever 20. The roller 19 is constituted by a braking spring 21 that urges the roller 19 in a direction in contact with the braking surface 17. That is, when the brake lever 20 is moved, the brake lever 20 rotates about the shaft 20a and the rubber roller 19 is separated from the braking surface 17, so that the rotary reel 14 sandwiched between the case body 12 and the case cover 13 is The power cord 24 is wound up by the urging force of the mainspring 15.

  When the winding of the power cord 24 is to be stopped halfway, the rotary reel 14 can be stopped by releasing the hand from the braking lever 20 and bringing the rubber roller 19 into contact with the braking surface 17.

  Next, regarding the shape of the portion of the rotating reel 14 around which the power cord 24 is wound, the shape of the core portion 22 of the rotating reel 14 (base shape around which the power cord 24 is wound) Then, the lead-out portion 23 of the power cord 24 is shifted inward by the wire diameter of the power cord 24 so as to have a substantially circular shape, and is gradually expanded. By doing so, as shown in FIG. 3, the gap a between the case body 12 and the power cord 24 when the power cord 24 is wound can be kept substantially uniform.

  Further, the storage position of the power plug 7 when the power cord 24 is wound is set to be the same surface as the winding surface of the power cord 24.

  Further, regarding the width of the rotating reel 14, the width b1 of the core portion 22 is set to a clearance of about the wire diameter φX + 0.5 to 1 mm of the power cord 24, and the width b2 of the outermost diameter portion of the rotating reel 14 is the power cord. It is set within a range of 24 wire diameters φX + 1 to a gap of about 1 to 3 mm.

  With this clearance setting, even when there is an adhering matter that adheres to the surface of the power cord 24 and enters the power cord winding device 3 when the power cord 24 is wound, the winding of the power cord 24 is not hindered. In addition, the power cord 24 can be prevented from overlapping in the vertical direction.

  The operation of the vacuum cleaner in the present embodiment configured as described above is as follows.

Dust sucked by the electric blower 10 is accommodated in a dust collection bag 8 in the dust collection chamber 9. The dust collection bag 8 can be easily replaced by opening and closing the dust collection lid 11. Further, when the cleaner body 1 travels, the center wheel 4 disposed in the center of the lower body 1a is biased downward by the spring 6 and thus has a function of following the unevenness of the floor surface. In addition to ensuring that the floor surface is grounded and rotating only in one traveling direction, the straight traveling stability is ensured, and the cleaner body 1 on the spot using the center wheel 4 as a rotating shaft. Can be rotated 360 degrees, and the cleaner body 1 can be run very smoothly.

  As described above, according to the vacuum cleaner of the present embodiment, the outer diameter of the power cord winding device 3 and the outer diameter of the cleaner body 1 are substantially the same. The overlapping of the cords 24 can be prevented, and the power cords 24 can be inserted and removed smoothly. In addition, by combining with the vacuum cleaner body 1 having a circular shape, the space of the cleaner body 1 can be effectively utilized, and the height / outer diameter can be minimized.

  In addition, in the core portion 22 around which the power cord 24 of the power cord winding device 3 is wound, the lead-out portion 23 is deformed inward by the wire diameter of the power cord 24 so that the power cord 24 becomes substantially circular when the power cord 24 is wound once. Therefore, by making the outermost shape of the power cord 24 when the power cord 24 is wound into a circle, the gap between the inner wall of the circular power cord winding device 3 and the power cord 24 is made uniform. In addition, the outer shape of the power cord winding device 3 can be reduced.

  In addition, since the power plug 7 is stored in the same position as the winding surface of the power cord 24 when the power cord 24 is wound, the resistance when the power cord 24 is taken in and out is reduced, and the operability / winding is achieved. It is possible to improve the taking performance.

  Further, since the outer diameter of the power cord winding device 3 is set to 270 to 290 mm, a power cord (5 m) generally used for a household vacuum cleaner can be accommodated smoothly.

  Moreover, since the outer diameter dimension of the upper part of the cleaner main body 1 from the power cord winding device 3 is the same as or larger than the outer diameter dimension of the power cord winding device 3, the vacuum cleaner is being used. It is possible to prevent the power cord 24 from being wound around the upper portion of the cleaner body 1.

(Embodiment 2)
FIG. 6 is a plan view (with the case cover removed) and a cross-sectional view of the power cord winding device for the electric vacuum cleaner according to Embodiment 2 of the present invention. In addition, about the same component as the vacuum cleaner in the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In this embodiment, as shown in FIG. 6, five rotating rollers 26 are evenly arranged outside the rotating reel 14 in the power cord winding device 3. The rotating roller 26 is rotatably held by a rotating shaft 27 formed on each of the case body 12 and the case cover 13.

  As the operation by the rotating roller 26, when the mainspring 15 that urges the rotating reel 14 to deteriorate is deteriorated and the urging force is weakened, the power cord 24 may spread outward when the power cord 24 is wound. In this case, the power cord 24 comes into contact with the inner wall of the case body 12 without the rotating roller 26, and the winding property is deteriorated. However, as in the present embodiment, the rotating roller 26 is The arrangement is designed so that the contact resistance can be suppressed and the power cord 24 can be wound smoothly and reliably even when the performance of the spring 15 is deteriorated.

As described above, the vacuum cleaner according to the present invention prevents the power cords from overlapping in the power cord winding device, allows the power cords to be taken in and out smoothly, and the height and outer diameter of the vacuum cleaner body. It is easy to use and can be applied to household, commercial, and store-use vacuum cleaners.

(A) Top view of the vacuum cleaner in Embodiment 1 of this invention, (b) Side view of the vacuum cleaner Central sectional view of the vacuum cleaner Perspective view of the main part of the vacuum cleaner (A) Top view of the power cord winder of the vacuum cleaner (with the case cover omitted), (b) Cross-sectional view of the power cord winder Expanded sectional view of the power cord winding device (A) Top view of power cord winder of vacuum cleaner in embodiment 2 of the present invention (state without case cover), (b) Cross section of power cord winder

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 3 Power supply cord winding device 7 Power supply plug 14 Rotating reel 22 Core part 24 Power supply cord 26 Rotating roller

Claims (3)

In the vacuum cleaner main body with a substantially circular outer shape,
A case comprising a bottomed cylindrical case main body, a case cover fitted to the opening surface of the case main body, a rotating reel rotatably provided in the case, and a rotational biasing of the rotating reel in one direction Built-in power cord winding device consisting of a spring spring
The outer diameter of the power cord winding device and the outer diameter of the cleaner body are substantially the same,
The shape of the core portion of the rotating reel is a shape in which the lead portion of the power cord is shifted inwardly by the wire diameter of the power cord so as to be substantially circular when the power cord is wound once, and gradually widened.
A plurality of rotating rollers that are rotatably held between the case main body and the case cover are arranged evenly on the outer side of the rotating reel so that the power cord is wound around the rotating reel in a one-stage spiral. Constructed vacuum cleaner. 2. The electric vacuum cleaner according to claim 1, wherein the power cord winding device sets a power plug storage position when the power cord is wound to be flush with a winding surface of the power cord. The vacuum cleaner according to claim 1 or 2 , wherein an outer diameter of the power cord winding device is 270 to 290 mm.

Images