JP2007236426A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of failure in removal of static electricity even in the cleaning with an auxiliary suction port connected to a joint part or with extension tubes of several kinds installed in the conventional electric vacuum cleaner. <P>SOLUTION: In the electric vacuum cleaner which has a cleaner body with a dust collection part, a hose connected to the cleaner body and a joint part which has a hose connection part connected to the hose on one end side while having extension tube connection parts for the connection of extension tubes on the other end side, the joint is provided with an anti-static member having the function of removing static electricity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner.

  In general, when a vacuum cleaner is used, dust collides with an extension pipe, a joint portion, a hose and a dust collecting portion constituting a part of the main body of the vacuum cleaner, thereby generating static electricity. In particular, when the portion where static electricity is generated is made of a metal material, it receives a large electric shock when touched by a person. This is because the metal material has conductivity even when the static electricity potential is the same as compared with the case where static electricity is generated in the plastic material, and all charges charged in the metal material are induced.

  In order to prevent electrical shock due to static electricity, for example, as disclosed in Patent Document 1, a felt (static elimination member) made of conductive short fibers is provided on an extension tube to discharge static electricity in the air. Has been proposed.

Japanese Patent Laid-Open No. 10-55895

  A general electric vacuum cleaner is used by connecting a suction port, an extension pipe, and a joint to a vacuum cleaner main body through a hose. Moreover, depending on the place to be cleaned, cleaning is performed using an auxiliary suction port as an accessory in accordance with the form of the place. The auxiliary suction port removes the extension pipe from the joint portion and connects the auxiliary suction port to the joint portion. Even in the state where the auxiliary suction port is used, the dust sucked from the auxiliary suction port collides with the joint portion, the hose and the like, and static electricity is generated. However, in the invention described in Patent Document 1, no consideration has been given to measures against static electricity in the state where the auxiliary suction port is used. In the invention described in Patent Document 1, since the static eliminating member is arranged in the extension pipe, the static elimination member is removed in a state where the extension pipe is removed from the joint portion and the auxiliary suction port is connected to the joint portion for cleaning. There was no possibility that the user could receive an electric shock due to static electricity.

  In addition, when the extension pipe connected to the joint is expanded to multiple models such as an expansion and contraction type and an extension type, there is a disadvantage that the neutralization member must be attached according to the type of the extension pipe, resulting in poor productivity. .

  The object of the present invention is to solve the above-mentioned problems, and is a vacuum cleaner that can eliminate static electricity generated even when the auxiliary suction port is connected to the joint for cleaning or when a plurality of types of extension pipes are provided. Is to provide a machine.

  In order to achieve the above object, the present invention is characterized by a vacuum cleaner body having a dust collecting part, a hose connected to the vacuum cleaner body, and a hose connection part connected to the hose on one end side. In the vacuum cleaner provided with the joint part having the extension pipe connecting part to which the extension pipe is connected on the other end side, the joint part is provided with a static elimination member having a function of eliminating static electricity.

  Further, the present invention is characterized by a vacuum cleaner main body having a dust collecting portion, a hose connected to the vacuum cleaner main body, and a hose connection portion connected to the hose on one end side. In a vacuum cleaner provided with a joint part having an extension pipe connection part to which the extension pipe is connected, a static elimination member having a function of eliminating static electricity is provided in a section where the joint part and the extension pipe are connected. That is.

  Further, the present invention is characterized in that a vacuum cleaner main body having a dust collecting portion, a hose connected to the vacuum cleaner main body, a hose connection portion connected to the hose on one end side, and on the other end side. In a vacuum cleaner provided with a joint part having an extension pipe connection part to which an extension pipe is connected, a flexible member for contacting the end part of the extension pipe and maintaining airtightness is disposed in the joint part, The soft member has a function of eliminating static electricity.

  According to the present invention, since the static elimination member having a function of eliminating static electricity is provided at the joint connected to the extension pipe, the extension pipe is removed from the joint and the auxiliary suction port is connected to the joint to perform cleaning. The static electricity generated can be removed even in the case where the extension tube is provided or a plurality of types of extension pipes are provided.

  An embodiment according to the present invention will be described below with reference to the drawings.

  FIG. 16 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention.

  100 is a vacuum cleaner main body incorporating an electric blower, a dust collecting portion, etc., 101 is a hose connected to the vacuum cleaner main body 100, 105 is a joint portion having one end connected to the hose and the other end connected to an extension pipe It is. Reference numeral 107 denotes an extension pipe connected to the joint portion, which is made of a metallic material. Reference numeral 116 denotes a suction port connected to the extension pipe.

  1 and 2 are sectional views of a joint portion according to an embodiment of the present invention. FIGS. 1 and 2 are different in the attachment position of the static elimination member. FIG. 1 is a view showing a state in which the static elimination member is positioned at the surface position of the extension tube. FIG. It is a figure which shows the state made to position.

  7 is a top view of a stopper ring according to an embodiment of the present invention, FIG. 8 is a side view of the stopper ring according to an embodiment of the present invention, and FIG. 9 is a sectional view of the stopper ring according to an embodiment of the present invention. FIG. 10 is a right side view of the stopper ring according to one embodiment of the present invention.

  As shown in FIGS. 1 and 2, a spiral projection 102 is formed on the outer periphery of the hose 101 so that the cylindrical seal ring 104 and the projection 102 of the joint portion 105 bent in an L shape are engaged with each other. The hose 101 is screwed into the seal ring 104, and the seal ring 104 is inserted into the hose connection portion 106. Thereafter, the stopper ring 401 shown in FIGS. 7 to 10 is arranged in the opening of the hose connection portion 106 so that the one end side of the joint portion 105 and the hose 101 are not disconnected. The stopper ring 401 is formed with claw portions 402 on both sides thereof. By engaging the claw portions 402 with notches (not shown) of the hose connection portion 106, the stopper ring 401 is connected to the hose connection portion 106. It is fixed to.

In FIG. 1, an extension pipe connection portion 103 for connecting the extension pipe 107 is integrally formed on the other end side of the joint portion 105, and one end side of the extension pipe 107 is connected to the inside of the extension pipe connection portion 103. It can be inserted and removed. Reference numeral 201 denotes a static elimination member, and the static elimination felt 202 is attached to the joint portion 105 by inserting the static elimination felt 202 into a hole provided in the joint portion 105.
302 is an adjustment ring, and 303 is an adjustment hole formed in the extension pipe 107. By rotating the adjustment ring 302 in the circumferential direction of the extension pipe 107, the adjustment hole 303 is opened and closed to adjust the suction force.

  In FIG. 2, the static elimination member 201 is positioned at the end portion 108 of the extension pipe 107 in a state where the extension pipe 107 is inserted into the joint portion 105.

In actual use, an aluminum expansion / contraction extension pipe or a metal pipe extension pipe to be used for connection is connected to the joint portion 105 for use.

  Under general usage conditions, the electrostatic potential increases near the joint. When the metal extension pipe 107 is connected to the extension pipe connection portion 103, since the static elimination member 201 is provided in the extension pipe connection portion 103 of the joint portion 105, the static elimination felt 202 contacts the outer surface of the extension pipe 107. It is possible to remove electricity in the air while performing corona discharge. The same effect can be maintained if the mounting position of the static eliminating member 201 is within the fitting section range of the extension pipe. The neutralization member 201 uses the neutralization felt 202 in this embodiment, but any member having a neutralization effect such as a rubber body can be used.

  FIG. 3 shows another embodiment according to the present invention, in which the joint portion has a straight pipe shape. A straight pipe joint cover 120 is disposed on the straight pipe joint 109 and is fixed to the straight pipe joint 109 with a mounting screw 113 to form a handle portion 112. The basic operation is the same as in FIG. 1 described above.

FIG. 4 shows another embodiment according to the present invention. Inside the straight pipe joint 109, when the extension pipe 107 is connected, an airtight packing 114 is disposed to contact the end portion 108 of the extension pipe 107 and prevent air leakage. In this embodiment, the hermetic packing 114 is formed of a soft material having a charge eliminating effect. For this reason, it is possible to obtain the effect of removing static electricity at the same time. As the soft material, a material in which a surfactant is mixed using rubbers, EVA (ethylene / vinyl acetate copolymer), or the like may be used. Further, a surfactant may be applied to the surface of the static elimination member 201. Since the airtight packing 114 is in contact with the end portion 108 of the metal extension pipe 701, there is an effect that the insertion force can be smoothly inserted and removed without increasing the insertion force.

FIG. 5 is a partially enlarged view of a portion where the static elimination member 201 is provided on the stopper ring 401. Since the hose 101 is always in contact with the static elimination felt 202 located in the static elimination member 201, the static elimination effect can be maintained even when the hose 101 is rotated or bent. Normally, the hose 101 hangs down due to its own weight, so that it always has an effect of static elimination because it is in contact with the 404 static elimination felt during use. Moreover, the curved convex part 403 can also prevent a sharp bend from the root that occurs when the hose connecting part 106 and the hose 101 are used.

  6 is a cross-sectional view taken along line AA in FIG. In a state where the metal extension pipe 107 is inserted into the joint portion 105, a flange-shaped hole is provided in a part of the outer periphery of the joint portion 105, and the charge removal member 201 is incorporated. The attachment method may be any structure. If several examples are given, first, the static elimination member 201 and the joint portion 105 may be made of the same material and fixed using an adhesive or the like. Furthermore, it is possible to weld the outer periphery of the static elimination member 201 using ultrasonic welding or the like. In addition, although not shown, when the static elimination member 201 is formed of a soft member and the lip shape is integrally formed on the outer periphery, it is possible to make it close so that it can be removed, and there is a need to replace it. It can be exchanged by simply pulling it out.

  Further, if the neutralizing member 201 is made to have a spring property, the insertion force can be reduced when the extension pipe 107 is inserted, and after the insertion, a pressing force is always applied to the metal extension pipe 107 side, and the contact is improved. it can.

  Further, the same effect can be obtained even if the shape of attaching the static eliminating felt 202 to the stopper ring 401 is integrally formed as shown in FIGS.

  FIG. 11 to FIG. 15 are diagrams showing the entire static elimination member 201 used in one embodiment of the present invention. The neutralizing felt 202 is sandwiched and fixed between the retaining ring 203 and the neutralizing member 201. At the center, a protruding rib 204 is integrally provided to prevent misalignment of the static elimination felt 202 and facilitate assembly. Since the flange shape is provided on the outer periphery of the static elimination member 201, the fixing position is determined by fitting, and furthermore, an airtight effect can be obtained at the same time.

  The neutralizing felt 202 is not necessarily used. The neutralizing member 201 is made of a soft material, such as rubber or EVA (ethylene / vinyl acetate copolymer), and a material mixed with a surfactant. It also has the effect of removing static electricity even when it comes into contact with. Further, a surfactant may be applied to the surface of the static elimination member 201.

It is sectional drawing of the joint part specification which concerns on one Example of this invention. It is sectional drawing of the joint part specification which concerns on one Example of this invention. It is sectional drawing of the straight pipe joint specification which concerns on one Example of this invention. It is sectional drawing of the straight pipe joint specification which concerns on one Example of this invention. It is the elements on larger scale of the hose connection part which concerns on one Example of this invention. It is FIG. 2A-A sectional drawing concerning one Example of this invention. It is a top view of the stopper ring which concerns on one Example of this invention. It is a side view of the stopper ring which concerns on one Example of this invention. It is sectional drawing of the stopper ring which concerns on one Example of this invention. It is a right view of the stopper ring which concerns on one Example of this invention. It is a set figure of the static elimination member which concerns on one Example of this invention. It is a front view of the retaining ring which concerns on one Example of this invention. It is sectional drawing of the retaining ring which concerns on one Example of this invention. It is a front view of the static elimination member which concerns on one Example of this invention. It is sectional drawing of the static elimination member which concerns on one Example of this invention. 1 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Hose, 102 ... Protrusion, 103 ... Extension pipe connection part, 104 ... Seal ring, 105
DESCRIPTION OF SYMBOLS ... Joint part, 106 ... Hose connection part, 107 ... Extension pipe, 108 ... End part, 109 ... Straight pipe joint, 110 ... Straight pipe joint hose connection part, 112 ... Handle part, 113 ... Mounting screw, 114 ... Airtight packing, DESCRIPTION OF SYMBOLS 201 ... Static elimination member, 202 ... Static elimination felt, 203 ... Retaining ring, 204 ... Protrusion rib, 302 ... Adjustment ring, 303 ... Adjustment hole, 401 ... Stopper ring, 402 ... Claw part, 403 ... Curve convex part.

Claims (4)

A vacuum cleaner body having a dust collecting part, a hose connected to the vacuum cleaner body, an extension pipe connection part having a hose connection part connected to the hose on one end side and an extension pipe connected to the other end side In a vacuum cleaner provided with a joint having
A vacuum cleaner characterized in that a static elimination member having a function of eliminating static electricity is provided in the joint portion. A vacuum cleaner body having a dust collecting part, a hose connected to the vacuum cleaner body, an extension pipe connection part having a hose connection part connected to the hose on one end side and an extension pipe connected to the other end side In a vacuum cleaner provided with a joint having
An electric vacuum cleaner comprising a static elimination member having a function of eliminating static electricity in a section where the joint portion and the extension pipe are connected. A vacuum cleaner body having a dust collecting part, a hose connected to the vacuum cleaner body, an extension pipe connection part having a hose connection part connected to the hose on one end side and an extension pipe connected to the other end side In a vacuum cleaner provided with a joint having
A vacuum cleaner characterized in that a soft member for maintaining airtightness in contact with an end of the extension pipe is disposed in the joint portion, and the soft member has a function of removing static electricity. In any one of Claims 1 thru | or 3,
An electric vacuum cleaner characterized in that the static eliminating member is composed of a fibrous body aggregated in a felt shape using an acrylonitrile copper monosulfide composite fiber or the like.

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