JP2012005734A - Suction tool for vacuum cleaner, and vacuum cleaner provided therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction tool for a vacuum cleaner, capable of improving its quietness and reducing a cleaning operation noise, and to provide a vacuum cleaner provided with the suction tool.SOLUTION: The suction tool for a vacuum cleaner includes: a suction tool body that has an opening on an undersurface thereof and within has a suction chamber communicating with the opening; and a connection pipe installed on the suction tool body, communicating with the suction chamber. On an external surface of the suction tool body, there is an intake port that takes in outside air, and within the suction tool body there is an exhaust port that connects the intake port and the suction chamber. In the vicinity of a communication passage connecting the intake port and exhaust port of the suction tool body, there is a sound-absorbing chamber separately provided from the communication passage.

Description

  The present invention relates to a vacuum cleaner suction tool and a vacuum cleaner including the same.

  Conventionally, in a vacuum cleaner suction tool, in order to reduce wind noise of suction air sucked from an outside air suction port provided substantially in front of the suction tool body, a lower opening provided in the suction tool body is provided. A sound absorbing material having air permeability and a silencing effect is provided on the ceiling surface of the suction chamber, and one end of the sound absorbing material covers the external air flow inlet provided substantially in front of the suction tool body, and the sound absorbing material is the suction tool body and the suction tool. There has been proposed a configuration that is extended to the vicinity of a communication path that communicates with an arm attached to the main body and is bonded and fixed (see, for example, Patent Document 1).

  That is, as shown in FIG. 5, the suction tool main body 101 is composed of an upper case 102 that forms the upper part of the suction tool main body 101 and a lower case 103 that forms the lower part of the suction tool main body 101. In 103, a suction chamber 105 having a lower opening is formed. In addition, an arm 106 is attached to the rear center of the suction tool main body 101 so as to be movable up and down. The suction chamber 105 and the arm 106 are communicated with each other via a communication path 109 provided in the suction tool main body 1. Yes. In the upper case 102, an external airflow inlet 125 that communicates the suction chamber 105 with the outside air is opened substantially in front of the suction tool body 101 so as to face the communication path 109. On the ceiling surface of the suction chamber 105, a sound absorbing material 126 having air permeability and a silencing effect is provided. The sound absorbing material 126 has one end covering the external air flow inlet 125 and the other end connected to the communication path 109. It is extended to the vicinity of and fixed by adhesion.

JP 11-318778 A

  However, the conventional vacuum cleaner suction tool still has room for improvement from the viewpoint of improving the quietness of the vacuum cleaner suction tool.

  That is, in the conventional vacuum cleaner suction tool, when the operation of the vacuum cleaner (not shown) is started by the user, air containing dust is sucked from the lower surface of the suction chamber, and the outside air suction port. Air is also sucked from. At this time, the external airflow inlet is covered with the sound absorbing material, and the air sucked from the external airflow inlet flows into the suction chamber through the sound absorbing material, so that the air sucked from the external airflow inlet is diffused by the sound absorbing material. A turbulent flow is generated in the air that has passed through the sound absorbing material. Then, the turbulent flow is further generated by the collision of the air in which the turbulent flow is generated with the air flowing in from the lower surface of the suction chamber, and noise such as wind noise in the suction chamber may increase.

  This invention is made | formed in view of the subject which the said prior art has, and while improving the quietness of the suction tool for vacuum cleaners, the suction tool for vacuum cleaners which can reduce the noise at the time of cleaning work And it aims at providing a vacuum cleaner provided with the same.

In order to solve the above-described problems of the prior art, the present invention includes a suction tool body having an opening on the lower surface and a suction chamber communicating with the opening inside, and attached to the suction tool body. And a connecting pipe that communicates with the chamber, and an intake port portion for sucking outside air is provided on an outer surface of the suction tool body, and the suction port portion and the suction chamber are communicated with each other inside the suction tool body. An electric vacuum cleaner that is provided with an exhaust port and in the vicinity of the communication passage that communicates the intake port portion and the exhaust port portion of the suction tool body with a sound absorption chamber that is provided separately from the communication passage Provide a mechanical suction tool.

  As a result, when the operation of the vacuum cleaner is started by the user, the air sucked from the suction tool body is dispersed from the suction port part and the opening part and flows into the suction chamber. Wind noise generated by sucking can be reduced, and the quietness of the suction tool body can be improved.

  Further, by providing a sound absorption chamber separately from the communication passage in the vicinity of the communication passage, wind noise generated when the outside air sucked from the intake port passes through the communication passage can be reduced in the sound absorption chamber. The quietness of the suction tool body can be improved.

  Furthermore, since there is no obstacle such as a sound absorbing material in the communication passage, which is a passage from outside air sucked in from the air inlet to the suction chamber, the outside air sucked from the air inlet is diffused by obstacles such as the sound absorbing material. Turbulence in the outside air that has passed through the communication passage is sufficiently suppressed, and when the outside air that has passed through the communication passage collides with the air sucked from the opening in the suction chamber, The generation of a flow can be sufficiently suppressed. For this reason, noise such as wind noise generated in the suction chamber can be reduced, and the quietness of the suction tool body can be improved.

  According to the vacuum cleaner suction tool of the present invention and the vacuum cleaner provided with the same, the quietness of the vacuum cleaner suction tool can be improved and the noise during the cleaning operation can be reduced. A suction tool and a vacuum cleaner including the suction tool can be provided.

Whole view of a vacuum cleaner provided with Embodiment 1 of the suction tool for vacuum cleaners of this invention Side surface sectional drawing of Embodiment 1 of the suction tool for vacuum cleaners of this invention The top view which removed the upper member in Embodiment 1 of the suction tool for vacuum cleaners of this invention The bottom view of Embodiment 1 of the suction tool for vacuum cleaners of this invention Side sectional view of a conventional vacuum cleaner suction tool

  1st invention has the suction tool main body which has a suction chamber which has an opening part in the lower surface, and communicates with an opening part inside, and a connection pipe attached to the suction tool main body and is connected to a suction chamber. The suction device body has an air intake port for intake of outside air, and the air intake device body has an air intake port for communicating the intake port with the suction chamber. The vacuum cleaner suction tool is provided with a sound absorbing chamber provided separately from the communication path in the vicinity of the communication path that connects the intake port portion and the exhaust port portion of the tool body.

  As a result, when the operation of the vacuum cleaner is started by the user, the air sucked from the suction tool body is dispersed from the suction port part and the opening part and flows into the suction chamber. Wind noise generated by sucking can be reduced, and the quietness of the suction tool body can be improved.

  Further, by providing a sound absorption chamber separately from the communication passage in the vicinity of the communication passage, wind noise generated when the outside air sucked from the intake port passes through the communication passage can be reduced in the sound absorption chamber. The quietness of the suction tool body can be improved.

Furthermore, since there is no obstacle such as a sound absorbing material in the communication passage, which is a passage from outside air sucked in from the air inlet to the suction chamber, the outside air sucked from the air inlet is diffused by obstacles such as the sound absorbing material. Turbulence in the outside air that has passed through the communication passage is sufficiently suppressed, and when the outside air that has passed through the communication passage collides with the air sucked from the opening in the suction chamber, The generation of a flow can be sufficiently suppressed. For this reason, noise such as wind noise generated in the suction chamber can be reduced, and the quietness of the suction tool body can be improved.

  In the second invention, particularly in the first invention, the intake port portion is provided with a lid for opening and closing the intake port portion.

  Thereby, when the operation of the vacuum cleaner is stopped, dust is not released into the outside air from the air inlet portion, and a clean suction tool for a vacuum cleaner can be provided.

  In a third aspect of the invention, particularly in the first or second aspect of the invention, the intake port portion and the exhaust port portion are provided facing each other.

  As a result, a communication passage which is a passage from the outside air sucked from the intake port to the suction chamber can be formed linearly, and is generated when the outside air sucked from the intake port passes through the communication passage. Wind noise can be further reduced, and the quietness of the suction tool body can be further improved.

  In the fourth invention, particularly in the first to third inventions, the intake port portion and the exhaust port portion are provided so that the communication passage is substantially parallel to the surface to be cleaned.

  As a result, the vector direction of the flow of outside air that is sucked from the intake port and passes through the communication passage can be matched with the vector direction of the flow of wind flowing through the suction chamber, and it is sufficiently possible that turbulence occurs in the suction chamber. It can suppress, and the silence of a suction tool main body can be improved further.

  In the fifth invention, in particular, in the first to fourth inventions, a plurality of exhaust ports are provided.

  Thereby, the intensity | strength of a suction tool main body can be improved, giving a sound absorption effect to a suction tool main body.

  In a sixth aspect of the invention, in particular, in the first to fifth aspects of the invention, the sound absorbing chamber is provided with a sound absorbing material.

  As a result, wind noise generated when the outside air sucked from the intake port passes through the communication passage and noise generated in the suction chamber can be absorbed by the sound absorbing material, further improving the quietness of the suction tool body. Can be made.

  A seventh aspect of the invention is a vacuum cleaner main body including an electric blower that generates suction air and a dust collecting unit that is disposed upstream of the electric blower and collects dust, A vacuum cleaner having the vacuum cleaner suction tool according to any one of the above.

  Thereby, the noise at the time of cleaning work can be reduced and a vacuum cleaner with high silence can be provided.

Hereinafter, preferred embodiments of the vacuum cleaner suction tool of the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

(Embodiment 1)
Embodiment 1 of the vacuum cleaner suction tool of the present invention will be described with reference to FIGS.

  1 is an overall view of a vacuum cleaner provided with Embodiment 1 of the vacuum cleaner suction tool of the present invention. Moreover, FIG. 2 is side surface sectional drawing of Embodiment 1 of the suction tool for vacuum cleaners of this invention. Further, FIG. 3 is a top view of the vacuum cleaner suction tool according to Embodiment 1 of the present invention with the upper member removed. FIG. 4 is a bottom view of Embodiment 1 of the vacuum cleaner suction tool of the present invention.

  As shown in FIG. 1, the vacuum cleaner 100 mainly includes a cleaner body 2, a suction tool 1 that sucks dust on a surface to be cleaned, a hose 8 having one end connected to the cleaner body 2, and one end having An extension pipe 9 is connected to the other end of the hose 8 and the other end is connected to the suction tool 1.

  The vacuum cleaner main body 2 is mainly disposed in the electric blower chamber 3 containing an electric blower (not shown) that generates suction air and the upstream side of the electric blower chamber 3, and is generated by the electric blower (not shown). And a dust collecting portion 4 for collecting dust sucked from the suction tool 1 by the suction air. Further, a dust collection port 5 to which one end of the hose portion 6 of the hose 8 is connected is provided in front of the cleaner body 2.

  One end of the hose 8 is connected to the dust collection port 5 of the cleaner body 2 and is provided at the other end of the hose part 6 and the hose part 6 formed of a soft body so as to move flexibly. 2 and an electric device (not shown) for controlling the suction tool 1 is built in. In addition, the hose proximal portion 7 is provided with a holding portion 7a that is held by the user during use.

  The extension tube 9 is formed of a rigid body to connect the hose proximal portion 7 and the suction tool 1. Further, the extension pipe 9 has a built-in power supply line (not shown) for supplying power to the suction tool 1.

  As shown in FIG. 2, the suction tool 1 is movable up and down mainly in the upper member 10 that forms the upper part of the suction tool 1, the lower member 11 that forms the lower part of the suction tool 1, and the rear center of the suction tool 1. And a connecting pipe 18 to which the extension pipe 9 is connected.

  The suction tool 1 incorporates a rotary brush 15 that scrapes dust on the surface to be cleaned, which will be described later, a motor 13 that rotationally drives the rotary brush 15, and a control circuit 14 that controls the motor 13. A bumper 16 is provided on the outer periphery of the suction tool 1. The motor 13, the control circuit 14, the rotating brush 15, and the bumper 16 are sandwiched and held between the upper member 10 and the lower member 11 by combining the upper member 10 and the lower member 11.

  Inside the lower member 11, there are provided a suction chamber 12 having an opening 12 a that opens downward, and a communication path 17 that connects the suction chamber 12 and the connecting pipe 18. In the suction chamber 12, a rotating brush 15 that scoops up dust on the surface to be cleaned is disposed so as to face the opening 12a. In addition, a dust collection path 19 that communicates with the suction chamber 12 through a communication path 17 is provided inside the connection pipe 18.

  As shown in FIGS. 2 to 4, the lower member 11 is formed with a room divided into left and right by a communication path 17. One of the divided rooms is a motor room 20, and the other room is a circuit room 25. It is said that. Further, in the vicinity of the four corners of the bottom surface of the lower member 11, there are provided traveling rollers 28 for the purpose of preventing the lower member 11 from coming into direct contact with the surface to be cleaned and not scratching the surface to be cleaned. ing.

  The motor chamber 20 has a built-in motor 13 that rotationally drives the rotary brush 15, and the motor 13 is supported by vibration isolation via a vibration isolation rubber 21. A motor shaft 22 is provided at the center of the motor 13, and a first pulley 23 having a tooth shape and a flange portion (not shown) is provided at one end of the motor shaft 22. It has been. A bearing portion 24 that holds the motor shaft 22 on the lower member 11 is provided between the motor 13 and the first pulley.

  The circuit chamber 25 is provided with a control circuit 14 that controls the motor 13, and the control circuit 14 is held by the lower member 11. The motor 13 and the control circuit 14 are connected by a connecting lead wire 26, and the connecting lead wire 26 is disposed in a bridge body 27 provided on the upper portion of the communication path 17.

  The rotary brush 15 is mainly formed of a rigid base material 31 formed of aluminum or foamable resin, and is formed in a spiral shape in the longitudinal direction of the base material 31, and has a plurality of openings that open toward the outer periphery of the base material 31. It is comprised from the groove part 32, the bristle brush 33 which has the function to wipe to-be-cleaned surfaces, such as a wooden floor, and the surrounding brush 34 which has a function to peel dust from to-be-cleaned surfaces, such as a carpet. The bristle brush 33 and the peripheral brush 34 are alternately passed through and fixed to the base material 31.

  A second pulley 29 having the same tooth shape as the first pulley and having a different number of teeth is provided at the end of the rotary brush 15 on the motor 13 side. The flange portion of the first pulley 23 of the second pulley 29 is provided. A flange portion (not shown) is provided at a position opposite to that of the first pulley 23 (not shown). The first pulley 23 and the second pulley 29 are connected by a timing belt 30 so that the power of the motor 13 is transmitted to the rotating brush 15.

  In the upper member 10, an air inlet 35 that communicates the inside of the upper member 10 with the outside air is opened substantially in front of the suction tool 1 so as to face the communication path 17. In addition, the air inlet 35 is provided with a lid 36 that opens and closes the air inlet 35.

  A number of holes are provided as silencing holes 37 on the ceiling surface of the suction chamber 12 of the lower member 11, and some holes are provided as exhaust ports 38 that communicate the interior of the upper member 10 with the suction chamber 12. It has been. The exhaust port portion 38 is also provided so as to face the communication path 17 in the same manner as the intake port portion 35. The intake port 35 and the exhaust port 38 are communicated with each other through a communication passage 39.

  Below the communication passage 39, a space portion 40 that is a sound absorption chamber is provided above the suction chamber 12, and a porous silencing hole 37 that connects the space portion 40 and the suction chamber 12 is provided. The space 40 is provided with a sound absorbing material 41 having a silencing effect so as to block the silencing hole 37.

  About the vacuum cleaner suction tool comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when the user starts the operation of the cleaner body 2 to clean the surface to be cleaned, suction air is generated by an electric blower (not shown). When suction air is generated by an electric blower (not shown), outside air flows from the suction chamber 12 and the intake port 35 through the hose 8, the extension pipe 9, the dust collection path 19, and the communication path 17. Further, the supply power from the cleaner body 2 is supplied from the control circuit 14 to the motor 13 through the extension pipe 9, the motor 13 rotates, and the rotating brush 15 is driven through the timing belt 30.

As the rotating brush 15 in the suction chamber 12 rotates, dust on the surface to be cleaned is peeled off by the bristle brush 33 and the peripheral brush 34, and is collected by the suction air flowing into the suction chamber 12.
7, dust is collected in the dust collection part 4 of the cleaner body 2 through the dust collection path 19, the extension pipe 9, and the hose 8. The suction air from the suction chamber 12 to the communication path 17 mainly serves as a flow path that passes through the lower side of the suction chamber 12. Further, the rotational sound generated by the bristle brush 33 and the peripheral brush 34 can be silenced by the sound pressure being lowered through the sound absorbing material 41 through the silencer hole 37.

  Next, the intake air flowing in from the intake port 35 first opens the lid 36, reaches the exhaust port 38 through the communication passage 39, and becomes wind that flows above the communication path 17. The intake air flowing from the intake port 35 has few steps and obstacles up to the communication path 17, and there are no extra steps after the communication path 17, so that the intake air sucked from the lower surface of the suction chamber 12 Even when combined, it flows smoothly in the connecting pipe 18. For this reason, the wind noise in the suction tool 1 inside can be reduced. Further, since the suction air sucked from the suction tool 1 is divided and sucked from the suction port portion 35 and the opening portion 12a of the suction chamber 12, the amount of suction air inside the suction chamber 12 is reduced, and the flow velocity is increased. Since it can drop, the sound pressure of the wind noise which the suction tool 1 generate | occur | produces can be lowered | hung.

  As described above, in the present embodiment, the space portion 40 surrounded by the lower member 11 and the upper member 10 is provided separately from the communication passage 39 in the upper portion of the suction chamber 12, and the sound absorbing material 41 is provided in this space portion. By providing, the sound pressure of the noise value generated by the suction tool 1 is reduced, and the noise reduction can be realized.

  Since the vacuum cleaner suction tool of the present invention and the vacuum cleaner including the same can provide the vacuum cleaner suction tool specialized in noise reduction and the vacuum cleaner including the vacuum cleaner, The present invention can be suitably applied to the fields and applications of household vacuum cleaners and industrial vacuum cleaners that use vacuum cleaner suction tools.

DESCRIPTION OF SYMBOLS 1 Suction tool 2 Vacuum cleaner body 3 Electric blower room 4 Dust collection part 5 Dust collection port 6 Hose part 7 Hose hand part 7a Holding part 8 Hose 9 Extension pipe 10 Upper member 11 Lower member 12 Suction room 12a Opening part 13 Motor 14 Control Circuit 15 Rotating brush 16 Bumper 17 Connection path 18 Connection pipe 19 Dust collection path 20 Motor chamber 21 Anti-vibration rubber 22 Motor shaft 23 First pulley 24 Bearing portion 25 Circuit chamber 26 Connection lead wire 27 Bridge body 28 Roller 29 Second pulley 30 Timing belt 31 Substrate 32 Groove portion 33 Bristle brush 34 Circumferential brush 35 Air intake port portion 36 Cover body 37 Silencing hole 38 Exhaust port portion 39 Communication path 40 Space portion 41 Sound absorbing material

Claims (7)

A suction tool main body having an opening on the lower surface and having a suction chamber communicating with the opening inside, and a connection pipe attached to the suction tool main body and communicating with the suction chamber,
The outer surface of the suction tool body is provided with an intake port for sucking outside air,
An inside of the suction tool body is provided with an exhaust port portion that communicates the intake port portion and the suction chamber,
A vacuum cleaner suction tool, wherein a sound absorption chamber provided separately from the communication passage is provided in the vicinity of the communication passage connecting the suction port portion and the exhaust port portion of the suction tool body.   The suction tool for an electric vacuum cleaner according to claim 1, wherein a lid body for opening and closing the air inlet portion is provided in the air inlet portion.   The suction tool for a vacuum cleaner according to claim 1 or 2, wherein the intake port portion and the exhaust port portion are provided to face each other.   The suction for vacuum cleaner according to any one of claims 1 to 3, wherein the intake port portion and the exhaust port portion are provided such that the communication passage is substantially parallel to a surface to be cleaned. Ingredients.   The vacuum cleaner suction tool according to any one of claims 1 to 4, wherein a plurality of the exhaust ports are provided.   The vacuum cleaner suction tool according to any one of claims 1 to 5, wherein a sound absorbing material is provided in the sound absorbing chamber. A vacuum cleaner body including a built-in electric blower that generates suction air and a dust collecting unit that is disposed upstream of the electric blower and collects dust;
The vacuum cleaner suction tool according to any one of claims 1 to 6,
Having a vacuum cleaner.