JPH028157A - Cord winding device - Google Patents

Abstract

PURPOSE:To reduce the danger of a plug spring up and to prevent the inability of pulling a cord out, etc. by obtaining a winding torque corresponding to the cord length by the operation of a brake button in the cord winding device of an electric cleaner, etc. CONSTITUTION:When a brake button 28 is pushed down for releasing a brake, a sliding part 8a is abutted to a brake lever 25, lifting a brake roller 27 by turning a little the brake lever 25. At this time some braking force is acted on a cord reel 18. When the winding torque becomes weaker with a cord 22 being wound to some extent, the braking button 28 is rotated in a clockwise direction and when it is pushed in thereafter, a brake roller 27 is completely separated from a movable brake face 18b and the winding of the cord 22 is completed in continuation. Thereafter, when a hand is let go from the brake button 28, a projection is moved up along the slope of a guide groove due to being energized upward by a spring 29 and the brake button is restored to the original position.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a hood winding device.

2. Description of the Related Art A cord winding device constructed as shown in FIG. 9, for example, has been known as a cord winding device used in vacuum cleaners and the like. The following will be explained based on the drawings. Reference numeral 1 denotes a cord reel storage chamber, and inside the cord reel storage chamber 1, a cordry/I/3 is provided biased in the cord winding direction by a mainspring spring 2. . 4 is a code! J
- The cord 5 wound around the tv3 is a brake means for controlling the winding of the cord 4 around the cordry/L/3 in an on-off manner.

Problem to be Solved by the Invention However, with the above configuration, for example, in the case of a vacuum cleaner, the cord length is usually about 5 m, so the pulling force when the cord 4 is pulled out by approximately 5 m is greater than the pulling force at the beginning of pulling out the cord. The pulling force will be quite large. As a result, when the cord is reeled in, the cord 4 is rapidly reeled in by the biasing force of the mainspring spring 2, and the cord 4 may become sidelined or
Plug 6 connected to the tip of cord 4 bounced and user L”
There were problems such as causing injuries.

Furthermore, as a phenomenon when winding the cord, since the cord winding speed is high, the cord 4 that is wound on the Cordry/I/3 is wound in a swollen state due to centrifugal force, and then the cord 4 is pulled out. In this case, as shown in FIG. 9, there was a problem in that the swollen and slack cord 4a got stuck on the outer circumferential wall of the cord Lee μ3, and the cord 4 could not be pulled out.

In order to solve these problems, it is possible to reduce the torque change by increasing the length t of the mainspring, but in order to use a longer mainspring, the storage space for the mainspring must be increased. As a result, there was a problem that the entire cord winding device became large.

The present invention solves these problems by providing a cord winder that prevents the cord from breaking, reduces the risk of the plug at the end of the cord bouncing, and prevents the cord from being unable to be pulled out, without increasing the size of the entire device. The purpose is to provide a device for collecting

Means for Solving the Problem In order to solve this problem, the present invention provides a cord reel that is biased in the cord winding direction by a mainspring spring or the like, and a cord reel that is pressed against the outer part of the cord reel. A movable brake means for performing braking and a brake button that can be slid toward and from the brake means are provided, and resistance is applied to the brake button during sliding of the brake button in a direction approaching the brake means. The brake is provided with a means for applying the brake, so that when the brake button is pressed halfway, the brake is partially released, and when the brake button is further pressed, the brake is fully released.

Operation With this configuration, when the brake button is pressed to release the brake, the brake is in a half-released state.

When the cord is pulled out for a long time, the winding resistance of the cord reel is large, so even when the brake is partially released, winding is performed slowly. Once the cord is wound to a certain extent, the winding torque becomes weaker, and winding can be continued by pressing the brake button all the way down and completely releasing the brake.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

First, the first embodiment shown in FIGS. 1 to 6 will be described. Reference numeral 11 denotes a vacuum cleaner body composed of an upper body 12 and a lower body 13. Inside this body 11 is a partition wall 14.
An electric blower storage chamber 15 and a cord reel storage chamber 16 are formed, which are partitioned by. The partition wall 14 is sandwiched and fixed between the upper body 12 and the lower body 13 from above and below. 17 is an electric blower provided inside the electric blower storage chamber 15; 18 is a cord reel μ provided inside the cord reel storage chamber 16;
One end of the /1g rotation shaft 19 is fixed to the partition wall 14 with a screw 20, and the other end is held by lips 12a and 13a formed on the upper body 12 and lower body 13. 2
Reference numeral 1 designates a mainspring spring that biases the food reel 18 in the winding direction of the cord 220. One end of this spring is fitted into a groove 19a provided in the rotating shaft 19, and the other end is inserted into the cord +J-/L.
It is fitted and locked into a groove 18a provided in '18. 23 is a spring holding plate fixed to the cord reel 18 with two screws 24. 25 is a brake lever, and a spring 2 is attached between the movable brake surface 18b on the outer peripheral surface of the Cordry/I/18 and the fixed brake surface 14a provided on the bulkhead 14.
The rotation of the Cordry/I/180 is braked by simultaneously contacting the rubber brake rollers 27 that are biased with a force of 6. 28 is the brake lever 25 by a spring 29.
When the brake button 28 is pushed down, the brake lever 25 rotates, and the brake roller 27 is moved away from the
The brake is released away from the movable brake surface 18b of No. 8, and the hood 22 is rolled up.

35 is a plug provided at the tip of the cord 22.

Incidentally, a protrusion 28b is provided on the outer surface of the sliding shaft portion 28a of the brake homogenizer at a position slightly lower than the middle portion in the vertical direction, while a cylindrical bearing portion 30 formed in the upper body 12 A guide groove 30a is formed at a position corresponding to the projection 28b. This guide groove 30a has a substantially right triangular shape as shown in FIG.
A downward recessed portion 30b is provided at the intersection of the lower end of the oblique side of a and one end of the base.

In the above configuration, when the brake button 28 is up and in good condition, that is, when the brake button 28 is separated from the brake lever 25, the brake loaf 27 is wedged between the movable brake surface 18b and the fixed brake surface 14a by the force of the spring 26. It is pressed in a state that is deformed into a shape. As a result, the frictional force between the fixed brake surface 14a and the brake roller 27 is transmitted to the brake low F27 and the movable brake surface 18b, and the code! The rotation of J-/L'18 is stopped.

When the brake button 28 is pressed down from this state, the projection 28a moves to the upper end of the guide groove 30a (see FIG. 6).
It descends from point A) to a 90 degree corner (point B) and stops. This causes the sliding shaft portion 28a of the brake button 28 to bulge.
When it comes into contact with the cutter 25, rotate the brake roller slightly (-25) and lift the brake roller 27. At this time,
The brake roller 27 comes into contact with the fixed brake surface 14a and the movable brake surface 18b to such an extent that they rub against each other, so that a slight force is exerted on the Cordry/L'18. That is, when winding the cord 22 from the cord v-/I/18 into the cord 22' after being pulled out for a long time, the winding torque is large in that state, but when the brake button 28 is pressed, the protrusion 28a f: guide Groove 30a
By positioning the cord 22 at point B, the cord 22 can be wound up while applying a brake to the rotation of the cordry/L'18. When the cord 22 is wound to a certain extent and the winding tension becomes weak, the brake button 28 is rotated clockwise to position the protrusion 28a at the upper end of the recessed part 30b of the guide groove 30a, and then the brake button 28t- When pushed in, the protrusion 28a enters the recess 30b and enters the guide groove 30.
By being located at the six points a, the brake roller 27 is completely separated from the movable brake surface 18b, and winding of the cord 220 can continue and be completed. Thereafter, when the brake button 28 is released, the protrusion 28b moves upward along the oblique side of the guide groove 30a because it is biased upward by the spring 29, and the brake button 28 returns to its original position, that is, as shown in FIG. Return to point A shown in .

As described above, by operating the brake button 28, the brake can be used either in a half-released state or in a completely released state. Therefore, when the cord 22 is pulled out for a long time and the winding torque is large, the brake loaf 27 is used to partially release the brake, thereby suppressing the winding speed.

Next, the second embodiment shown in FIGS. 7 and 8 will be described. In this embodiment as well, the brake button 28 is urged by a spring 29 in a direction away from a part of the brake lever, that is, upwardly, so that it can freely move up and down. It has become. Reference numeral 28c denotes a stopper that protrudes at a suitable location on the outer surface of the sliding shaft portion 28a slightly below the middle portion in the vertical direction, and is located in the groove portion 30c of the bearing portion 30 of the upper main body 12. The contact prevents the Gray Killer 25 from being pulled out upwards. 31 is the brake button 28
The lip protrudes downward from the lower surface of the upper end, and when the brake button 28 is lowered halfway, it comes into contact with the spring 33 provided in the spring chamber 32 on the upper body 12 side from above, providing resistance to the lowering of the brake button 28. It is configured as follows. Note that the spring 33 described in 1III is housed in the spring chamber 32 with an initial load applied by MB2.

In the above configuration, when the brake button 28 is pressed down, resistance is suddenly applied to the brake button 28 when the rib 31 comes into contact with the spring, so the brake button 28t
? You can stop at this position.

At this time, the brake lever 25 is moved by the sliding shaft portion 28a.
is rotated, and the brake by the brake loaf 27 becomes half released. When the brake button 28 is pushed in with further force from this state, the brake by the brake loaf 27 is completely released.

Effects of the Invention As described above, according to the present invention, the brake release state I! can be released by operating the brake button. I can adjust it,
It is possible to obtain the necessary winding torque according to the length of the cord pulled out. As a result, we have achieved improvements in usability, durability, safety, etc. by preventing cord breakage, reducing the risk of the plug at the tip of the coat bouncing, and preventing the cord 1' from becoming impossible to pull out, without increasing the overall size of the device. An improved cord winding device can be provided.

[Brief explanation of the drawing]

1 to 6 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view of the main part, FIG. 2 is a sectional view of the main part, and FIG. 3 is a cord winding device for electric cleaning. Vertical sectional view when installed on the machine,
FIG. 4 is a cross-sectional view of the same, FIG. 5 is an exploded perspective view of the cord winding device, FIG. 6 is an explanatory diagram of the operation, and FIGS. 7 and 8 are exploded main parts showing the second embodiment of the present invention. A perspective view and a cross-sectional view of a main part, and FIG. 9 is a vertical cross-sectional view of a vacuum cleaner equipped with a conventional hood winding device. 18... Cordry μ, 18b... Movable brake surface, 21... Mainspring spring, 22... Code, Ah...
・Brake lever, 26...Spring% 27...Brake roller, 2g-...Brake button, 28a...Sliding shaft portion, 28b...Protrusion, 28C...Stopper, 4...Spring , 30... Bearing part, 30a... Guide groove,
30b... recessed part, 30c... groove part, 30d...
Upper end step, 31... lip, 32... spring chamber, 33.
...Spring, 34...Lid, 35...Plug. Agent Yoshihiro Morimoto! l! Figure 4, Figure z, 31c, Figure 7, 2β 2/C, Figure 1, 93-1, 10,000: I+-

Claims (1)

[Claims] 1. A cord reel that is biased in the cord winding direction by a mainspring spring, etc., a movable brake means that brakes the cord reel by coming into pressure contact with the outer periphery of the cord reel, and a A slidable brake button is provided, and means is provided for applying resistance to the brake button in the middle of sliding the brake button in a direction approaching the brake means, so that when the brake button is pressed halfway, the brake is released. The cord winding device is configured so that the brake is in a half-released state, and when the brake button is further pressed, the brake is in a completely released state.