JP2009050648A - Rotating rotor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating rotor which carries out the cleaning or replacing of a cleaning body efficiently without spoiling the precision of the rotating rotor. <P>SOLUTION: The rotating rotor 10 which is rotatably mounted on an appliance such as an electric vacuum cleaner comprises a rotary bar 1 with a groove part 1a disposed along the length of its outer circumference and a cleaning body 2 which has a base part 2b detachably inserted into the groove part 1a of the rotary bar 1 and a plurality of cleaning members 2a so formed as to be protruded from the base part 2b more than from the groove part 1a and brackets 3 and 13 arrayed at the end parts on both sides of the rotary bar 1. A cleaning body takeoff part 4 is formed on each of the brackets 3 and 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a rotary rotor for a floor nozzle used as an attachment for a vacuum cleaner.

Conventionally, as shown in FIGS. 8 and 9, a rotary rotor 27 is used for the floor nozzle 50. The configuration will be described below. 26 is an intake pipe whose one end is located in the central passage 25 and the other end is connected to a main body (not shown) of the vacuum cleaner, and 27 is a rotary rotor having a rotor 28, a cleaning body 29, a shaft 30 and a speed reduction pulley 31A. A bracket 32A, a bracket 32B having a shaft 30, and a raised cloth 33 attached to the outer periphery of the brackets 32A and 32B. A washer 34 and a bearing holder 36 for holding a bearing 35 are attached to both ends of the rotary rotor 27, and the opening is opened. The shaft holder 30 is rotatably supported by the bearing 35 by fitting the bearing holder 36 to the bearing holder holding portions 37 provided at both ends in the longitudinal direction 22, and the free end 38 of the cleaning body 29 and the raised cloth 33 is rotated. Sometimes it protrudes from the opening 22. The rotor 28 constituting the rotary rotor 27 is a linear rod-like body extruded from aluminum or an alloy thereof, and in the longitudinal direction, a support for supporting one or more cleaning bodies 29 opened on the outer periphery. A groove 41 is provided. The brackets 32A and 32B are formed by insert molding a metal shaft 30 into a hard resin such as plastic, and a brushed cloth 33 is attached to the entire outer periphery thereof. Then, the rotor 28 is twisted at a predetermined angle around the shaft, and the cleaning body 29 is inserted and fixed in the support groove 41 of the rotor 28 to make the cleaning body 29 spiral, and brackets 32A, The rotary rotor 27 is completed by fixing 32B (Patent Document 1).

JP 2002-143045 A

By rotating the conventional rotary rotor 27 configured as described above, the free end 38 of the cleaning body 29 is brought into sliding contact with the surface to be cleaned, and dust is picked up or wiped or polished. To do. However, since the rotary rotor 27 is always rotating at a high speed in order to exert the cleaning effect, the cleaning body 29 is worn away by repeated cleaning, or the cleaning effect is reduced, or dust is removed from the cleaning body 29. Because it adheres to itself, it is necessary to clean and replace it regularly.

  The cleaning body 29 has its base portion inserted into the support groove 41 provided in the longitudinal direction of the outer periphery of the rotor 28 from the end portion of the rotor 28, thereby preventing the rotor 28 from coming off in the outer diameter direction. Since the bracket 32A and the bracket 32B are bonded and fixed to both ends of the rotor 28 in order to maintain accuracy, the cleaning body 29 has a structure that cannot be normally removed.

  In order to replace the cleaning body 29 or remove it for maintenance, the bracket 32A or 32B is pulled out of the rotor 28 with a force that destroys the bonded portion, and the base of the cleaning body 29 is extended from the support groove 41 of the rotor 28 in the longitudinal direction. It was necessary to slide out. Next, the cleaning body 29 or the new cleaning body 29 for which maintenance has been completed is inserted into the support groove 41 of the rotor 28, and the removed bracket 32A or 32B is adhered and fixed again to complete the operation. For this reason, the cleaning and replacement work of the cleaning body 29 is very troublesome. Further, the bracket 32A or 32B once bonded may have a hardened adhesive attached thereto, and there is a case where it is necessary to remove the bracket.

Furthermore, if this detaching operation is repeated many times, the inner diameter of the bracket 32A or 32B is scraped and the assembly accuracy is lowered, thereby causing the performance of the rotary rotor 28 to be degraded (decrease in the rotational accuracy), the cleaning performance being degraded, This has led to increased vibration and noise.
In order to prevent such a decrease in accuracy, it is necessary to prepare a new bracket 32A or 32B. In this case, there is a disadvantage that an extra cost is required.

An object of this invention is to provide the rotary rotor which can perform the cleaning or replacement | exchange operation | work of a cleaning body efficiently, without impairing the precision of a rotary rotor in view of the said point.

In the invention of claim 1, the rotary rotor is rotatably attached to the device, and has a rotating rod having a groove portion provided in the longitudinal direction of the outer periphery, a base portion that can be inserted into and removed from the groove portion of the rotating rod, and the A cleaning body comprising a plurality of cleaning members projecting from the base portion than the groove portion, and a bracket disposed at an end of the rotating rod, and the cleaning body takeout portion on the bracket and / or the rotating rod. It has the feature in having formed. Therefore, the work of removing the cleaning body for cleaning or replacement of the cleaning body is only to take out the cleaning body from the cleaning body take-out portion formed on the bracket or / and the rotating rod, and is arranged at the end of the rotating rod. It is not necessary to remove the bracket from the rotating rod. Further, the cleaning body can be replaced without impairing the accuracy of the rotating rotor.

According to a second aspect of the present invention, in the first aspect of the present invention, a convex portion for preventing the cleaning body from coming off is formed on one side of the cleaning body at the cleaning body take-out portion formed on the bracket or / and the rotating rod. It has a special feature. Therefore, when a load is applied to the cleaning body during cleaning, the convex portion can prevent the cleaning body from floating upward during the cleaning and falling off the cleaning body take-out portion.

In the invention of claim 1, by forming the cleaning body take-out portion on the bracket or / and the rotating rod, the cleaning body can be easily removed when compared with the conventional one, and the working efficiency is improved. Can do. Further, the cleaning body can be replaced without impairing the accuracy of the rotating rotor. Furthermore, the maintenance cost of the rotating rotor can be minimized by replacing only the cleaning body.

In invention of Claim 2, the removal operation | work of a cleaning body can be made easy by forming the convex part in the cleaning body extraction part formed in the bracket or / and the rotating rod on the one side of the cleaning body. At the same time, it is possible to prevent the cleaning body from floating upward and coming out of the cleaning body take-out portion during cleaning.

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a rotating rotor 10 according to the present invention, and FIG. 2 is a perspective view of a rotating rod. FIG. 3 is a perspective view of the cleaning body, and FIG. 4 is a front view and a side view of the bracket. As shown in FIG. 1, the rotary rotor 10 is rotatably attached to a device such as a vacuum cleaner, and includes a rotary rod 1 having a groove 1a provided in the longitudinal direction of the outer periphery, and the rotary rod. A cleaning body 2 having a base 2b that can be inserted into and removed from one groove 1a, and a plurality of cleaning members 2a that protrude from the base 2b beyond the groove 1a, and disposed at both ends of the rotating rod 1. Brackets 3 and 13. And the cleaning body extraction part 4 is formed in the brackets 3 and 13.

The rotary rod 1 is provided with four grooves 1a that are open on the outer periphery in the longitudinal direction. Using a material such as aluminum or an alloy thereof, the rotary rod 1 is linearly extruded and then twisted at both ends. The groove 1a is spirally formed by twisting around the axis. In addition, the manufacturing method of the rotating rod 1 can employ | adopt various methods in consideration of required intensity | strength, precision, weight, etc. For example, spiral grooves can be formed simultaneously with extrusion by twist extrusion. Further, as the material of the rotating rod 1, synthetic resins such as ABS resin and PS resin can be used.

As shown in FIG. 3A, the cleaning body 2 includes a base portion 2b and a cleaning member 2a made of pile-like fibers planted on the base portion 2b. The base portion 2b is formed of the rotating rod 1 described above. The cleaning member 2a can be inserted into and removed from the groove 1a, and is formed to protrude outward from the groove 2a of the rotating rod 1 from the base 2b.

As shown in FIG. 3 (b), a blade made of flexible rubber or plastic is used as the cleaning member 20a in addition to the cleaning member 2a made of pile-like fibers in FIG. 3 (a). A cleaning body 20 in which the cleaning member 20a is integrated with the base 20b can also be used. Moreover, what kind of cleaning member is used can be properly used depending on the surface to be cleaned, and a cloth or a raised cloth can also be used as the cleaning member.

And the base 2b of the cleaning body 2 is inserted and fixed in each of the four grooves 1a of the rotary rod 1 described above to make the cleaning body 2 spiral, and at both ends of the rotary rod 1 to which the cleaning body 2 is attached. The rotary rotor 10 is assembled by fixing the bracket 3 and the bracket 13 together. A shaft 3f protruding outward from the end of the bracket 3 is rotatably supported by a bearing of a vacuum cleaner floor nozzle (not shown), and a fitting piece (not shown) of the bracket 13 is fitted with a gear of the floor nozzle. The rotating rotor 10 is rotated in the floor nozzle by rotating the gear by the power of a motor or the like.

As shown in FIG. 4, the bracket 3 has an inner wall 3 e formed in a cylindrical shape so that the outer peripheral surface 1 b at the end of the rotating rod 1 can be inserted and fitted, and the inner diameter thereof is the outer peripheral surface 1 b of the rotating rod 1. The outer diameter is set so that there is no backlash when fitted. Rotation stoppers 3a and 3a that fit into the groove 1a of the rotating rod 1 are provided at two locations in the vertical direction.

Moreover, the cleaning body extraction part 4 which can take out the cleaning body 2 is formed in two places of the left-right direction. As shown in the left side view of FIG. 4A, the cleaning body take-out portion 4 has a base portion of the cleaning body 2 when the end of the rotating rod 1 with the cleaning body 2 inserted in the groove 1a is fixed. A convex portion 3b that covers the upper half of 2b is formed, and the convex portion 3b prevents the cleaning body 2 from coming off.

In addition, this convex part 3b is formed in the one side surface side of the cleaning body 2, and when a load is added to the cleaning body 2 in the anti-rotation direction with respect to the cleaning body 2 at the time of cleaning, the convex part 3b The cleaning body 2 functions to prevent the cleaning body 2 from floating upward and falling off the cleaning body take-out portion 4 during cleaning.

Further, as shown in the front view of FIG. 4B, a stopper 3c is formed on the cleaning body extraction portion 4 of the bracket 3, and the end of the cleaning body 2 inserted into the cleaning body extraction portion 4 is The movement in the longitudinal direction is restricted and fixed by the stopper portion 3c.

Further, a slide part 3d is formed on the cleaning body take-out part 4 of the bracket 3, and when the cleaning body 2 is removed, after the cleaning body 2 exceeds the stopper part 3c described above, the back surface of the base part 2b comes into sliding contact. The removal work of the cleaning body 2 is facilitated.

  5A and 5B are views showing the positional relationship between the bracket 13 and the cleaning body 2, where FIG. 5A is a perspective view, FIG. 5B is a plan view, FIG. 5C is an AA cross-sectional view, and FIG. -B sectional drawing, (e) And (f) is a figure which shows the state which the cleaning body is contacting with the floor surface by AA sectional drawing. As described above, the four grooves 1a are spirally formed in the rotating rod 1, and the four cleaning bodies 2 having the base 2b that can be inserted and removed are inserted into the four grooves 1a. However, as shown in FIGS. 5 (a) and 5 (b), in the normal cleaning state, at one end of the bracket 13, the ends of the two cleaning bodies 2 in the vertical direction are provided by the stopper portion 3c. The bracket 13 is fixed at an intermediate position of the cleaning body extraction portion 4.

On the other hand, the ends of the two cleaning bodies 2 in the vertical direction are fixed to the two cleaning bodies 2 in the vertical direction at positions where they contact the end portions of the bracket 13. On the other hand, in the bracket 3 on the opposite side, as shown in FIG. 1, the rotating rod 1 and the cleaning body 2 are fixed so that the cleaning body take-out portion 4 is formed in the horizontal direction. Since the spiral groove 1a is twisted 180 degrees at both ends, the ends of the two cleaning bodies 2 fixed at the intermediate position of the cleaning body extraction portion 4 of the bracket 13 by the one bracket 13 described above. The part is fixed at a position in contact with the end of the bracket 3.

In addition, the end of the two cleaning bodies 2 fixed at the position in contact with the end of the bracket 13 by the one bracket 13 described above is fixed at the intermediate position of the cleaning body extraction portion 4 of the bracket 3. It has become. By adopting such a configuration, the rotation of the rotary rotor 10 at the time of cleaning causes a load to be evenly applied to the four cleaning bodies 4, and it is difficult for distortion and rotational shake to occur. It also leads to prevention of falling off from the take-out part 4.

Further, as shown in FIGS. 5C to 5F, by forming the convex portion 3b of the bracket 13 on one side surface of the cleaning body 2, the base portion 2b is lifted to the outer diameter side. It is possible to prevent the convex portion 3 b from trying to prevent the cleaning body 2 from floating upward and being detached from the groove portion 1 a of the rotating rod 1 during cleaning. In addition, the convex part 3b should just be formed in either one side surface of the cleaning body 2, and also in the case of FIG.5 (f) with the rotation direction of the cleaning body 2 opposite to FIG.5 (e) at the time of cleaning It is possible to prevent the cleaning body 2 from floating upward and detaching from the groove portion 1 a of the rotating rod 1.

Further, as described above, since the brackets 3 and 13 inserted and fitted to the end portion of the rotating rod 1 are each formed with two cleaning member take-out portions 4 at 180 ° opposite positions. The two cleaning elements 2 can be taken out from one bracket 3 and the remaining two cleaning elements 2 can be taken out from the other bracket 13. As a result, the four cleaning bodies 2 can be configured to have the same length and are shifted in the longitudinal direction, so that the cleaning width of the rotary rotor 10 becomes larger than the longitudinal length of the cleaning body 2. , Cleaning efficiency can be improved.

  FIG. 6 is a perspective view and a front view showing a state in which the cleaning body 2 is removed from or inserted into the rotary rotor 10. As shown in these drawings, the two cleaning bodies 2 installed in the vertical direction extend from the slide portion 3d to the longitudinal direction of the rotary rotor 10 beyond the stopper portion 3c of the cleaning body extraction portion 4 formed on the bracket 3. Can be easily taken out while the back surface of the base 2b slides on the slide 3d.

On the other hand, the two cleaning bodies 2 installed in the left-right direction can be easily taken out by similarly sliding from the cleaning body take-out portion 4 formed on the opposite bracket 3. Here, the procedure for maintaining the cleaning body 2 is as follows. First, the rotary rotor 10 is removed from a bearing (not shown) such as a floor nozzle.

Next, the end of the cleaning body 2 of the removed rotary rotor 10 is pinched with a finger, and is slid from the slide part 3d to the outside in the longitudinal direction of the rotary rotor 10 over the stopper part 3c of the cleaning body take-out part 4. The four cleaning bodies 2 are removed from the rotating rod 1. The cleaning body 2 is removed from the rotating rod 1 by pinching with a finger or using a pliers-like special tool.

Then, after removing dust adhering to the cleaning body 2 or preparing a new cleaning body 2, the end of the cleaning body 2 is pinched with a finger, and the groove portion 1 a of the rotating rod 1 is moved from the slide portion 3 d of the cleaning body extraction portion 4. Then, after confirming that the ends of the four cleaning bodies 2 are fixed by the stopper portion 3c, the rotary rotor 10 is mounted on a bearing such as a floor nozzle, and the maintenance work is completed.

  Fig.7 (a) is a perspective view of the rotating rod 11 for demonstrating 2nd Embodiment of this invention, FIG.7 (b) is CC sectional drawing in Fig.7 (a). As shown in this figure, the cleaning body takeout part 40 can also be formed in the intermediate part of the rotating rod 11. This cleaning body take-out portion 40 forms a groove 11a of the rotating rod 11, and scrapes and enlarges the claw 11b fixing the base 2b of the cleaning body 2, and has a width substantially the same as that of the base 2b of the cleaning body 2. In this way, the cleaning body take-out portions 40 are formed at four locations on the rotating rod 11 so that the four cleaning bodies 2 can be taken out.

The cleaning body extraction part 40 formed on the rotating rod 11 functions alone, but can also be used in combination with the cleaning body extraction part 4 formed on the bracket 3 described above. Further, the cleaning body take-out portions 4 and 40 can be formed so as to be connected to the end portions of the rotary rods 1 and 11 and the brackets 3 and 13.

In addition, it cannot be overemphasized that various embodiment can be taken in the range which does not deviate from the meaning of this invention. For example, the rotary rotor in the above embodiment is one in which four cleaning bodies are installed in the four grooves of the rotary rod, but the present invention is not limited to this, and one or more cleaning bodies are provided on the rotary rod. The present invention can be applied if it is installed.

  Although the rotary rotor of the present invention can be used for various purposes, it has an extremely high cleaning effect on the surface to be cleaned, and can be cleaned accurately and quickly, in addition to the purpose of using it for a floor nozzle for a vacuum cleaner. Can be used widely and suitably as a floor cleaning machine, a floor polisher and the like.

The top view of the rotary rotor which concerns on this invention. The perspective view of a rotating rod. The perspective view of a cleaning body. The front view and side view of a bracket. The figure which showed the positional relationship of a bracket and a cleaning body. The figure which shows the insertion / removal state from the rotary rotor of a cleaning body. The figure of the rotating rod for demonstrating 2nd Embodiment of this invention. The top view of the floor nozzle for vacuum cleaners incorporating the conventional rotary rotor. The perspective view of the conventional rotary rotor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11 Rotating rod 2 Cleaning body 2a Cleaning member 2b Base part 3, 13 Bracket 3a Around stop piece 3b Protruding part 3c Stopper part 3d Slide part 4, 40 Cleaning body extraction part 10 Rotating rotor

Claims (2)

A rotating rod that is rotatably attached to the apparatus and has a groove provided in the longitudinal direction of the outer periphery, a base that can be inserted into and removed from the groove of the rotating rod, and a plurality of protrusions that protrude from the groove from the base A rotary rotor comprising: a cleaning body provided with a cleaning member; and a bracket disposed at an end of the rotating rod, wherein a cleaning body takeout portion is formed on the bracket or / and the rotating rod. The rotating rotor according to claim 1, wherein a convex portion for preventing the cleaning body from coming off is formed on one side of the cleaning body at a cleaning body take-out portion formed on the bracket and / or the rotating rod.

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