JPH0218266A - cord winding device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cord winding device used in a vacuum cleaner or the like.

2. Description of the Related Art Conventionally, cord winding devices used in vacuum cleaners and the like are known, for example, as shown in FIGS. 3 to 5. Hereinafter, the explanation will be given based on the drawings. Reference numeral 1 represents a vacuum cleaner body having a built-in electric blower 2, and reference numeral 3 represents a dust collection box for collecting dust. 4 is a cord reel for winding up the cord 5, and is rotatably supported by a cord reel shaft 6. 7 is a mainspring spring that urges the cord reel 4 in the direction to wind the cord 5; 8 is equipped with a brake body made of rubber at one end, and the brake body is pressed against the flange surface of the cord reel 4 by the spring; The brake lever is energized. 9 is a brake button for operating the brake lever 8 from the outside of the vacuum cleaner body 1;
0 is a screw for attaching the cord winding device to the partition wall 11 inside the vacuum cleaner body 1. 12 is a plug provided at the tip of the cord 5.

Problems to be Solved by the Invention In such a vacuum cleaner, the cord 5 can be easily and quickly wound up by operating the brake lever 8 using the brake button 9. However, for example, in the case of a vacuum cleaner, Since the length of the cord is usually about 5 m, the pulling force when the cord 5 is pulled out by about 5 m is considerably larger than the pulling force when the cord 5 starts being pulled out. As a result, when the cord is wound up, the mainspring spring 7
The cord 5 is suddenly entangled by the urging force of the cord 5, causing problems such as the cord 5 breaking or the plug 12 connected to the tip of the cord 5 bouncing off and injuring the user. Ta.

Furthermore, as a phenomenon during cord winding, since the cord winding speed is high, the cord 5 wound on the cord reel 4 is wound up in a swollen state due to centrifugal force as shown in FIG. If you try to withdraw the
There was a problem in that the cord 5 that was being pulled out got stuck between the swollen and slack cords 5a, and the cord 5 could not be pulled out.

The present invention is intended to solve these problems, and aims to provide a cord winding device that prevents the cord from breaking, reduces the risk of the plug at the tip of the cord bouncing, and prevents the cord from being unable to be pulled out. That is.

Means for Solving the Problems In order to solve this problem, the present invention provides an annular hollow body around the outer periphery of the side wall of the cord reel that is biased by a spring in the cord winding direction, and has sand inside the annular hollow body. A fluid heavy object such as the following is installed with a space left.

Effect: With this configuration, when the cord reel rotates, the fluid heavy object is always located at the bottom, adding resistance to the cord reel, resulting in a reduction in winding speed.
Provides a cord winding device; η that improves usability, durability, safety, etc. by preventing cord breakage, reducing the risk of the plug at the end of the cord bouncing, and preventing the cord from becoming tangled and being unable to be pulled out. be able to.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.

In FIGS. 1 and 2, reference numeral 21 denotes a vacuum cleaner body incorporating an electric blower 22, and a dust collection box 23 for collecting dust and blood is attached to the front end of the cleaner body. Reference numeral 24 denotes a cord reel for winding up the cord 25, which is rotatably supported by a cord reel shaft 26, and has side walls 27 and 28 on both sides of the cord reel 24.

The outer periphery of one side wall 21 has a braking surface 29.

A mainspring spring 31 is installed in a space formed by attaching a spring holder 30 to the outer surface side of the other 1IPI wall 28.
is provided, and an annular hollow body 3 is provided on the outer periphery of this side wall 28.
2 are integrally provided by ultrasonic welding.

A fluid heavy substance 33 such as sand or water is poured into the annular hollow body 32 leaving an appropriate space 34. Reference numeral 35 denotes a partition wall provided inside the main body 21, one end of the cord reel shaft 26 is fixed to the partition wall 35 with a screw 36, and the other end of the cord reel shaft 26 is fitted and supported by the inner wall 21a of the main body 21. There is. 37 is code reel 2
4, and is fitted to the cord reel shaft 2θ with a slight gap.

38 has a brake body made of rubber at one end, and the brake body is connected to the brake surface 29 of the cord reel 24 by a spring.
39 is a brake button for operating the brake lever 38 from the outside of the main body 21, and 40 is a plug provided at the tip of the cord 25.

In the above configuration, since the fluid heavy object 33 exists inside the annular hollow body 32 of the cord reel 24 that rotates when winding the cord, the heavy object 33 acts so that it is always located at the lower part, so that it faces the surface during rotation. Due to the gap between the cord reel shaft 26 and the bearing 37, the cord reel shaft 26 and the bearing 37 tilt and rub against each other, creating resistance. The cord comes into contact with the inner wall 21a of the main body 21, such as the glue 121b, and exerts resistance, and these actions can reduce the winding speed of the cord reel 24. At the same time, the inertia force applied to the cord 25 can also be reduced.

Effects of the Invention As described above, according to the present invention, a fluid heavy material such as sand is provided inside the annular hollow body provided on the outer periphery of the wall of the cord reel, leaving a space, so that the cord reel does not rotate. When liquidity, ff! The rod always stays at the bottom, adding resistance to the cord reel, which reduces the winding speed, prevents cord breakage, reduces the risk of the plug at the end of the cord bouncing, and prevents the cord from getting tangled. It is possible to provide a cord winding device that prevents the cord from being unable to be pulled out and has improved usability, durability, safety, and the like.

[Brief explanation of drawings]

Since FIG. 1 and FIG. 2 show one embodiment of the present invention,
Fig. 1 is a cutaway n+++ side view of the main parts of the vacuum cleaner, Fig. 2 is a perspective view of the cord reel, Figs. 3 to 5 show conventional examples, and Fig. 3 is a cutaway side view of the main parts of the vacuum cleaner. FIG. 4 is a perspective view showing the state in which the cord is pulled out, and FIG. 5 is an enlarged view showing the state in which the cord is entangled. 24...Code reel, 25...Code, 27.2
8... Side wall, 31... Mainspring spring, 32... Annular hollow body, 33... Heavy object, 34... Space part, 40
···plug. Agent Yoshihiro Morimoto Figure 2 Figure 5

Claims (1)

[Claims] 1. A cord winding device in which an annular hollow body is provided on the outer periphery of the side wall of the cord reel that is biased by a spring in the cord winding direction, and a fluid heavy material such as sand is placed inside this annular hollow body, leaving a space. Device.