JP2009119025A - Suction nozzle attachment for vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a suction nozzle attachment for a vacuum cleaner which has a structure for preventing easy separation of pile pads from a suction nozzle body. <P>SOLUTION: The pile pads (3a-3e) are fixed at the bottom of the nozzle body (1) constituting a suction nozzle attachment for the vacuum cleaner. The pile pad has a base fabric (10) and pile yarns (11). The base fabric is provided with reinforcement portions (10b, 10c) without the pile yarn on both sides of a part having implanted pile yarns. The reinforcement portions of the base fabric are inserted into slits (23-26) formed in the suction nozzle body, and bonded. Therefore, even if a frictional force acts on a floor surface and the pile yarns during cleaning, no frictional force acts on the edge of the base fabric, so that the base fabric is hard to separate from the main body, and durability is improved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a suction nozzle attachment of a vacuum cleaner, and more particularly to a suction nozzle attachment that is provided with a measure for preventing peeling of a pile pad that regulates a distance between a suction nozzle body and a floor surface.

  The vacuum cleaner has a vacuum cleaner body and a suction nozzle attachment that is exchangeably connected to the vacuum cleaner body via a suction pipe. Various attachments can be exchanged as the suction nozzle attachment, and an attachment equipped with a rotating brush mechanism is used when cleaning the floor surface or the like. When cleaning the floor surface using a suction nozzle attachment equipped with a rotating brush mechanism, the nozzle body is made of a hard plastic material, so if the nozzle body comes into direct contact with the floor surface, the floor surface will be damaged. A malfunction will occur. Therefore, a pile pad is attached to the outer peripheral surface facing the floor surface of the nozzle body, and the nozzle body is configured not to directly contact the floor surface by the pile pad.

  Since the pile pad has soft pile hairs planted on the base fabric, the flexible pile hairs come into contact with the floor surface during cleaning. The problem of scratching is resolved. However, since the attachment moves back and forth during cleaning, a frictional force acting to peel off the pile pad acts between the floor surface and the pile hair. Due to this undesired frictional force, the pile pad adhered to the suction nozzle body with the adhesive or the double-sided tape is gradually peeled off and finally peeled off from the nozzle body. However, if the pile pad is completely peeled off from the nozzle body, the hard resin nozzle body comes into direct contact with the floor surface, which causes a problem of scratching the floor surface. Therefore, it is extremely important for the vacuum cleaner that the pile pad prevents peeling from the nozzle body.

As a measure for preventing the pile pad from peeling off from the nozzle body, a method has been proposed in which the pile pad is formed integrally with the holder and the holder is attached to the nozzle body (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 2001-169979

  As a method of joining the pile pad to the suction nozzle body, the method of fixing using an adhesive or a double-sided tape is easy to work and has an advantage that it can be joined by relatively simple work. However, simply attaching a pile pad to the outer peripheral surface of the flat nozzle body will cause the base fabric to gradually peel off due to the frictional force between the floor surface and pile hair generated by the reciprocating movement during cleaning. There are difficulties. In addition, the pile pad is formed integrally with the holder, and the holder is attached to the suction nozzle body by processing the base fabric into a desired shape, forming the processed base fabric together with the holder, There is a disadvantage that the work process is increased because the holder to which is attached must be mounted on the suction nozzle body. Moreover, when the joining force between a holder and a base fabric is weak, the problem that a base fabric peels from a holder gradually by the frictional force which generate | occur | produces during cleaning is also pointed out.

  An object of the present invention is to eliminate the above-described drawbacks, and to attach a pile pad to the suction nozzle body in a relatively simple work process, and to have a structure in which the fixed pile pad is difficult to peel off from the suction nozzle body. It is to realize a nozzle attachment.

The suction nozzle attachment of the vacuum cleaner according to the present invention is a suction nozzle attachment of a vacuum cleaner that contacts the floor surface during cleaning and removes dust etc. existing on the floor surface,
A suction nozzle body connected to the vacuum cleaner body;
A rotating brush mechanism rotatably supported by the suction nozzle body;
Mounted on the outer peripheral surface facing the floor surface of the suction nozzle body, and comprising a pile pad for defining a distance between the suction nozzle body and the floor surface;
The pile pad is composed of a base fabric and pile hairs partially planted on the base fabric,
The base fabric has a pile hair planting portion in which pile hairs are planted, and a reinforcing portion in which pile hairs are not planted on both sides of the pile hair planting portion,
The suction nozzle body has a stage portion that supports the pile hair planting portion of the base fabric, and two parallel slits formed on both sides of the stage portion,
The pile hair planting portion of the base fabric is bonded to the stage portion of the suction nozzle body, and the reinforcing portion is inserted into the slit of the suction nozzle body.

  As a result of the inventor analyzing the ease of peeling of the pile pad, the main cause is that the frictional force generated between the floor surface and the pile hair acts to peel off the edge of the pile pad. There was found. Therefore, in the present invention, a stage for fixing the pile pad is provided on the outer peripheral surface of the bottom portion of the suction nozzle body, and slits on both sides thereof are formed across the stage. And the reinforcement part is provided in the base fabric of a pile pad, the part by which the pile hair of the base fabric is planted adheres to a stage, and a reinforcement part inserts in a slit, and adheres to the side wall of a slit. Since the frictional force between the floor surface and the pile hair generated during cleaning acts obliquely with respect to the surface of the base fabric, in the present invention, it does not act so as to peel off the edge of the base fabric. It acts in a sliding direction with respect to the reinforcing part bonded to the side wall. As a result, the base fabric is hardly peeled off from the outer peripheral surface of the nozzle body, and the durability is further improved.

  In the present invention, since the reinforcing portion is provided on the pile pad base fabric, and the reinforcing portion is inserted into the slit of the suction nozzle body and adhered to the side wall, the base fabric is sucked even if a frictional force acts on the pile pad. It becomes difficult to peel off from the nozzle body, and the durability is greatly improved.

  FIG. 1 shows an example of a suction nozzle attachment according to the present invention, FIG. 1A is a plan view of the suction nozzle attachment as seen from the back side facing the floor surface, and FIG. 1B is enlarged by cutting along line II in FIG. 1A. FIG. 1C is a perspective view showing an example of a pile pad.

  The suction nozzle body 1 has a bottom surface 1a facing the floor surface, and an opening 1b is formed in the bottom surface 1a, and dust and dust on the floor surface are sucked through the opening 1b. A rotating brush 2 is rotatably disposed in the opening 1b. When the user reciprocates in the directions of arrows a and b during cleaning, the rotating brush 2 also rotates correspondingly and sucks dust and dirt on the floor. The The internal passage of the suction nozzle body 1 is connected to a cleaner body (not shown) via an intake pipe. Accordingly, the sucked dust and dirt are transferred to the cleaner body through the intake pipe. Five pile pads 3 a to 3 e are attached to the bottom surface of the suction nozzle body 1. These pile pads contact the floor surface during cleaning, and serve to regulate the distance between the suction nozzle body and the floor surface. Accordingly, since the pile pad is in direct contact with the floor surface during cleaning, the plastic suction nozzle body does not contact the floor surface, and the floor surface such as flooring is prevented from being damaged.

  As shown in FIG. 1C, the pile pad 3 has a structure in which flexible pile hairs 11 are implanted in a base fabric 10. The pile hair 11 is comprised with flexible fibers, such as nylon, for example. Accordingly, since the flexible fiber comes into contact with the floor surface, when the user reciprocates the cleaner, the floor surface is wiped with the flexible fiber, and dust and the like are wiped off. The base fabric 10 includes a pile planting portion 10a in which pile hairs are planted, and two reinforcing portions 10b and 10c that are formed on both sides of the pile hair planting portion 10a and function as reinforcing members. In addition, in this example, the pile hair 11 is formed in a slanted hair structure, and the pile hair is planted so as to incline in the backward direction when the cleaner is reciprocated during cleaning.

  FIG. 1B is a partial cross-sectional view taken along line II-II in FIG. 1A, showing an enlarged bottom surface portion of the suction nozzle body, and showing a pile pad attached to the suction nozzle body. Two stages 21 and 22 are formed on the bottom of the suction nozzle body, and a pile pad is fixed to these stages with an adhesive or a double-sided tape. Two slits (grooves) 23 and 24 and 25 and 26 are formed on both sides of each stage. These slits extend in a direction orthogonal to the direction in which the nozzle body reciprocates during cleaning. The width of the slit is set to such a size that the reinforcing part of the pile pad base fabric is inserted. As shown in FIG. 1B, the sizes of the stages 21 and 21 are set to be approximately equal to the size of the pile hair planting portion 10 a of the pile pad 3. The reinforcing portions 10b and 10c of the base fabric are inserted into the slits, and are fixed to the side walls of the slits using an adhesive or a double-sided tape.

  2A and 2B are diagrams schematically showing the ease of peeling of the pile pad. FIG. 2A shows a conventional pile pad mounting state, and FIG. 2B shows a pile pad mounting state according to the present invention. In the conventional pile pad, the base fabric is bonded to the outer peripheral surface of the bottom of the suction nozzle body, and there is no reinforcing portion, so the frictional force acting between the pile hair and the floor surface pulls the edge of the base fabric. Acts as a peeling force. For this reason, even if the base fabric is bonded, it gradually begins to peel off from the edge portion, causing a problem in durability. On the other hand, in this invention, the reinforcement part which acts as a reinforcement part is formed before and after the pile hair planting part of a base fabric, and the reinforcement part is inserted in the slit and adhere | attached on the side wall of the slit. For this reason, even if a frictional force acts, it does not act on the edge part of the base fabric, but acts to slide the reinforcing part bonded to the side wall of the slit. In this case, since the base fabric acts on the surface bonded to the side wall, even if a relatively strong frictional force is applied, the base fabric is not easily peeled off from the nozzle body surface, and the durability is remarkably improved. The

It is a figure which shows an example of the suction nozzle attachment by this invention. It is a figure which shows typically the ease of peeling of a pile pad.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suction nozzle body 2 Rotating brush 3a-3e Pile pad 10 Base cloth 11 Pile hair 21, 22 Stages 23-26 Slit

Claims (4)

It is a suction nozzle attachment of a vacuum cleaner that comes into contact with the floor surface during cleaning and sucks and removes dust etc. existing on the floor surface,
A suction nozzle body connected to the vacuum cleaner body;
A rotating brush mechanism rotatably supported by the suction nozzle body;
It is attached to the outer peripheral surface facing the floor surface of the suction nozzle body, and comprises a pile pad that regulates the interval between the suction nozzle body and the floor surface,
The pile pad is composed of a base fabric and pile hairs partially planted on the base fabric,
The base fabric has a pile hair planting portion in which pile hairs are planted, and a reinforcing portion in which pile hairs are not planted on both sides of the pile hair planting portion,
The suction nozzle body has a stage portion that supports the pile hair planting portion of the base fabric, and two slits formed on both sides of the stage portion,
A suction nozzle attachment, wherein a pile hair planting portion of the base fabric is bonded to a stage portion of a suction nozzle body, and a reinforcing portion is inserted into a slit of the suction nozzle body.   The suction nozzle attachment according to claim 1, wherein the reinforcing portion of the pile pad base fabric is bonded to a side wall of a slit formed in the suction nozzle body.   2. The suction nozzle attachment according to claim 1, wherein the pile pad is attached to a plurality of portions of the suction nozzle body, and the pile hair of the pile pad extends in a retreating direction in the reciprocating direction of the suction nozzle attachment during cleaning. Suction nozzle attachment characterized by being slanted. A pile pad that is attached to the suction nozzle body of the suction nozzle attachment of the vacuum cleaner and regulates the distance between the floor surface and the suction nozzle body,
The pile pad is composed of a base fabric and pile hairs partially planted on the base fabric,
The base fabric includes a pile hair planting portion in which pile hairs are planted, and a reinforcing portion in which pile hairs are not planted on both sides of the pile hair planting portion. Pile pad.

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