JP2007209790A - Suction tool for vacuum cleaner and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve functional convenience for use by improving reduction of noise and durability while providing a mechanism for turning a suction tool in a 90-degree arc clockwise and counter-clockwise by simple and light torsional operation. <P>SOLUTION: This vacuum cleaner includes: a dust collecting chamber 3 at a lower opening 4; a suction port 9 for sucking the air containing dust in the dust collecting chamber 3; a main joint part 5 and a subsidiary joint part 6, which have joints in the vicinity of the suction port 9; a connecting pipe 7 at the end of the subsidiary joint 6; and a joint pipe 8 formed of flexible material, which is provided in the interiors of the main joint part 5 and the subsidiary joint part 6 to connect the suction port 9 and the connecting pipe 7, wherein the connecting pipe 7 is twisted to the right and left, whereby the suction tool is turned in a 90-degree arc clockwise and counter-clockwise so that dust near the wall of a room and dust in a narrow space between pieces of furniture can be cleared away by simple twisting operation, and it is convenient for use. Furthermore, since the joint pipe 8 is freely bent and gently bent, a passage for air is neither narrowed nor bent so that wind noise can be reduced and the construction is simplified to decrease the number of parts. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

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

  In recent years, there has been a demand for an electric vacuum cleaner that can clean dust in a narrow space such as between furniture or near a wall of a room with a simple operation during cleaning without changing the suction tool. In order to solve the problem, the conventional vacuum cleaner has a configuration as shown in FIG.

  The configuration will be described below with reference to FIGS.

  The suction tool is formed by an upper frame body 1 and a lower frame body 2, and has a dust collection chamber 3 therein, and an opening 4 is provided in the lower frame body 2 in the cleaning surface direction of the dust collection chamber 3. ing. An arm 46 is sandwiched between the upper frame 1 and the lower frame 2 so as to be rotatable up and down at the rear part of the suction tool. The arm 46 is configured to rotate in the vertical direction with respect to the cleaning surface. Reference numeral 47 denotes a connection pipe having a shape in which the connection direction of the extension pipe 44 and the mounting direction of the arm 46 are bent by 90 degrees, and can rotate approximately 180 degrees vertically and circumferentially on the upper part of the arm 46. Is attached.

  An extension pipe 44 is connected to the connection pipe 47, a handle portion 48 is connected to the other end of the extension pipe 44, and a hose 45 is connected to the rear of the handle portion 48.

  From the above configuration, the longitudinal direction 49 of the suction tool is perpendicular to the direction of walking posture before and after the person gripping the handle portion 48, but by twisting the handle portion left and right, the suction tool is moved in the left and right directions. Turns about 90 degrees, and the longitudinal direction 49 of the suction tool is the same as the direction of the back and forth posture, so that dust on the wall of the room can be sucked up easily, and there is no obstruction of the longitudinal width of the suction tool. It is possible to clean the dust in a narrow gap such as between them with a simple twisting operation without changing the suction tool.

  However, as shown in FIGS. 19 and 20, these vacuum cleaner suction tools are bent in the narrow space 50 twice in the direction of 90 degrees because the wind flowing in the arm 46 and the connection pipe 47 is bent twice. Therefore, there has been a problem that wind noise generated increases.

  In addition, the configuration is complicated and the number of parts is increased.

  Further, since the connection pipe 47 is bent 90 degrees, the attachment position of the extension pipe 44 is higher than the rotation fulcrum 51 of the arm 46, and the connection pipe 47 rotates in the left-right direction at the higher position. For this reason, if the vector direction of the force when operating the extension pipe 44 deviates from the direction in which the suction tool is pushed straight to the left or right, the suction tool rotates around the rotation shaft 52 of the connection pipe 47, There was also a problem that the suction tool fluctuated from side to side or rotated during cleaning, which was not convenient.

  The present invention solves the above-mentioned problem, and includes a mechanism in which the suction tool turns 90 degrees in the left and right directions by a simple light twisting operation, while reducing noise and improving durability and improving usability of functions. The purpose is to do.

  In order to achieve the above object, the present invention provides a dust collection chamber having a lower opening, a suction port for sucking air containing dust in the dust collection chamber, and a suction tool provided with the dust collection chamber and the suction port therein. A main joint portion having a main body, a vertical rotation shaft supported so as to be rotatable in the vertical direction with respect to the suction tool main body, and a left and right rotation shaft orthogonal to the vertical rotation shaft, and a connection pipe are held. A joint part composed of a secondary joint part supported by the left and right pivot shaft of the main joint part so as to be able to rotate left and right, and made of a flexible material and arranged in the joint part to connect the suction port and the connection pipe. And a joint pipe that forms a dust collecting passage, and the longitudinal direction of the suction tool body is determined by the vertical rotation of the main joint part and the horizontal rotation of the secondary joint part with respect to the suction tool body. The electric sweeper that can be swung so as to be substantially parallel to the longitudinal direction of the extension pipe connected to the connection pipe. A suction tool for a machine, wherein the shape of the joint pipe is a trumpet shape, and is gradually changed so that the cross-sectional area of the joint pipe is large on the suction port side and decreases toward the left and right rotation shaft of the main joint portion. By making it constant from the vicinity of the left and right pivot shaft to the connecting pipe, the flow of wind is rectified and smoothed, wind noise generated around the suction port can be reduced, and the main joint Since the cross-sectional area of the joint pipe around the left and right rotation axis of the part is small, the joint pipe has good bendability and is easy to bend, and the operation is lightened.

  In addition, since the dust collection passage to be connected from the suction port through the joint pipe of the flexible material to the connection pipe is arranged in a straight line, and the joint pipe is gently bent with a flexible material, Since the wind channel is not bent in a narrow space, wind noise can be reduced and noise reduction can be achieved.

  Also, by twisting the connecting pipe in the left and right directions, the suction tool turns approximately 90 degrees in the left and right directions due to the rotation of the joint part by the joint and the bending of the joint pipe by the flexible material, and the longitudinal direction of the suction tool. The direction of the posture to walk back and forth is the same direction, and it is possible to easily suck out dust near the wall of the room, and since the obstruction of the longitudinal width of the suction tool is eliminated, dust in narrow gaps between furniture etc. can be easily twisted It can be cleaned, is easy to use and can improve the cleaning work.

  According to the present invention, it is possible to reduce noise and improve durability and improve the usability of the cleaning operation while providing a mechanism in which the suction tool rotates 90 degrees in the left and right directions by a simple light twisting operation.

  The invention according to claim 1 of the present invention is a dust collection chamber having a lower opening, a suction port for sucking air containing dust in the dust collection chamber, and a suction tool provided with the dust collection chamber and the suction port therein. A main joint portion having a main body, a vertical rotation shaft supported so as to be rotatable in the vertical direction with respect to the suction tool main body, and a left and right rotation shaft orthogonal to the vertical rotation shaft, and a connection pipe are held. A joint part composed of a secondary joint part supported by the left and right pivot shaft of the main joint part so as to be able to rotate left and right, and made of a flexible material and arranged in the joint part to connect the suction port and the connection pipe. And a joint pipe that forms a dust collecting passage, and the longitudinal direction of the suction tool body is determined by the vertical rotation of the main joint part and the horizontal rotation of the secondary joint part with respect to the suction tool body. A vacuum cleaner that can be swiveled so as to be substantially parallel to the longitudinal direction of the extension pipe connected to the connection pipe A suction tool, the shape of the joint pipe is a trumpet shape, the cross-sectional area of the joint pipe is large on the suction port side, gradually changed toward the left and right rotation shaft of the main joint portion, By making it constant from the vicinity of the left and right pivots to the connection pipe, the flow of wind is rectified and smoothed, wind noise generated around the suction port can be reduced, and the main joint part Since the cross-sectional area of the joint pipe around the left and right rotation shaft is small, the joint pipe has good bendability and is easy to bend, and the operation is lightened. In addition, the strain on the joint pipe is reduced and the durability is improved.

  In addition, since the dust collection passage to be connected from the suction port through the joint pipe of the flexible material to the connection pipe is arranged in a straight line, and the joint pipe is gently bent with a flexible material, Since the wind channel is not bent in a narrow space, wind noise can be reduced and noise reduction can be achieved.

  Also, by twisting the connecting pipe in the left and right directions, the suction tool turns approximately 90 degrees in the left and right directions due to the rotation of the joint part by the joint and the bending of the joint pipe by the flexible material, and the longitudinal direction of the suction tool. The direction of the posture to walk back and forth is the same direction, and it is possible to easily suck out dust near the wall of the room, and since the obstruction of the longitudinal width of the suction tool is eliminated, dust in narrow gaps between furniture etc. can be easily twisted It can be cleaned, is easy to use and can improve the cleaning work.

  The invention according to claim 2 of the present invention is the connection pipe made of a hard material at both ends of the joint pipe made of a flexible material and ribs on the outer peripheral part, particularly in the first invention. Each of the provided connection pipes is integrally molded, the slave joint portion is divided into two parts composed of two parts, and a groove portion into which the rib enters is provided inside each of the slave joint parts of the two parts. By adopting a structure that sandwiches and fixes the left and right pivot shafts of the main joint part, it is not necessary to assemble and bond the joint pipe, the connection pipe, and the connection pipe, and it is possible to improve assembly and air tightness. In addition, it is possible to easily regulate the assembly position of the three parts of the main joint part, the subjoint part, and the connection pipe, and to improve the assembly accuracy and workability.

  According to the third aspect of the present invention, in particular, in the first or second invention, the joint pipe made of a flexible material is formed in a bellows shape, so that it becomes flexible against bending compression, and the connecting pipe is left and right. The operability when turning the suction tool 90 degrees in the left and right directions by twisting in each direction and bending the joint pipe is improved, and the usability can be improved.

  According to a fourth aspect of the present invention, there is provided at least a vacuum cleaner main body including a dust collection chamber for collecting dust and an electric blower for at least one of the first to third aspects of the present invention. The vacuum cleaner includes a suction port connected to communicate with the suction tool, and can provide a vacuum cleaner excellent in cleaning workability.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
A first embodiment of the present invention will be described below with reference to FIGS.

  The suction tool is formed by an upper frame body 1 and a lower frame body 2, and has a dust collection chamber 3 therein, and an opening 4 is provided in the lower frame body 2 in the cleaning surface direction of the dust collection chamber 3. Yes. A main joint 5 is sandwiched between the upper frame 1 and the lower frame 2 so as to be rotatable up and down at the rear part of the suction tool. The main joint 5 is configured to rotate from a substantially horizontal direction to a substantially vertical direction with respect to the cleaning surface. Reference numeral 6 denotes a secondary joint portion which holds the connection pipe 7 and is attached to the main joint portion 5 so as to be rotatable by about 180 degrees in the left-right direction. Reference numeral 8 denotes a joint pipe made of a flexible material such as rubber, which passes through the inside of the main joint section 5 and the subjoint section 6 and connects the suction port 9 and the connection pipe 7 to form a dust collection passage. An extension pipe 44 is connected to the connection pipe 7.

  The operation of the above configuration is as follows.

  As shown in FIG. 4, when the extension pipe 44 is twisted in the left direction with the suction tool grounded to the floor surface, the secondary joint portion 6 rotates in the left direction and the main joint portion 5 rotates in the upward direction. At the same time, the suction tool begins to turn leftward, and when it is twisted to approximately 90 degrees, the main joint portion 5 reaches a direction substantially perpendicular to the floor surface, and the suction tool rotates approximately 90 degrees to the left. . At that time, the joint pipe 8 secures a dust collecting passage while being bent by the flexibility of a material such as rubber. As a result, the longitudinal direction a10 of the suction tool is substantially parallel to the longitudinal direction c53 of the extension pipe 44, and the direction of the posture in which the person walks back and forth is the same direction, so that the dust near the wall of the room is easily sucked. In addition, since the obstruction of the longitudinal width of the suction tool can be eliminated, dust cleaning in a narrow gap between furniture and the like can be performed with a simple twisting operation, which is easy to use and can improve the cleaning work. The same effect can be obtained when twisted in the right direction.

  At that time, the dust collecting passage connected from the suction port 9 through the joint pipe 8 to the connection pipe 7 is arranged in a straight line, and the joint pipe 8 is gently bent due to the flexibility of a material such as rubber. Since the wind passage is not bent in the narrow space 50 as shown in FIG. 19, the wind noise can be reduced and the noise can be reduced.

  In addition, since the configuration is simple, the number of parts is small, and the assembly is easy, the cost can be reduced.

  In this embodiment, the case of a biaxial joint has been described. However, it can be easily estimated that the same effect can be obtained even when there are a plurality of axes.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The main joint portion 5 includes a vertical rotation shaft 11 that rotates in the vertical direction with respect to the cleaning surface, and a horizontal rotation shaft 12 that is orthogonal to the vertical rotation shaft 11 and rotates in the horizontal direction.

  A vertical rotation shaft 11 of the main joint portion 5 is assembled on the upper frame 1 side of the suction tool, and the main joint portion 5 rotates from a substantially horizontal direction to a substantially vertical direction. A sub-joint portion 6 holding a connection pipe 7 is assembled to the left and right pivot shaft 12 of the main joint portion 5 and is configured to rotate approximately 180 degrees in the left-right direction. Reference numeral 8 denotes a joint pipe made of a flexible material such as rubber, which passes through the inside of the main joint portion 5 and the subjoint portion 6 and connects the suction port 9 and the connection pipe 7 to form a dust collection passage.

  The operation of the above configuration is as follows.

  The main joint 5 is provided with two joints in which the vertical rotation and the horizontal rotation are orthogonal to each other, and the center line 15 connecting the intermediate point 13 of the vertical rotation shaft 11 and the intermediate point 14 of the horizontal rotation shaft 12 is always in a straight line. When the suction tool is straight, the direction of the center line 15 and the attachment direction of the connection pipe 7 are the same direction when the suction tool goes straight, so that the force in the suction tool operating direction is It distributes and acts on the left and right rotation shafts 12 according to the operation, is excellent in operation followability and straight running stability of the suction tool, is easy to use, and can improve the cleaning work.

(Embodiment 3)
Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The suction port 9 for sucking the air containing dust in the dust collection chamber 3 is disposed so as to be inclined 16 with respect to the cleaning surface obliquely behind the dust collection chamber.

  The operation of the above configuration is as follows.

  Since the joint pipe 8 made of a flexible material such as rubber that connects the suction port 9 and the connection pipe 7 is arranged in a straight line at an intermediate position 17 that is bent vertically from the horizontal direction to the vertical direction with respect to the cleaning surface, When the suction tool is operated, the joint pipe 8 can be easily bent up and down, and the operation is lightened. Further, there is little burden of stretching on the joint pipe 8, and durability is improved.

(Embodiment 4)
Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The lower frame 2 is provided with a roller 18 that contacts the cleaning surface behind the opening 4, and the vertical rotation shaft 11 of the main joint portion 5 is connected to the opening 4 on the suction tool body side and the rotation shaft 19 of the roller 18. Arranged between.

  The operation of the above configuration is as follows.

  The force that presses the roller 18 against the cleaning surface during the operation of the suction tool acts, and the front part of the suction tool does not lift up with the rotating shaft 19 of the roller 18 as a fulcrum, and the suction tool is stably grounded on the floor surface. Usability can be improved.

(Embodiment 5)
Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  A space portion 20 is provided between the main joint portion 5 and the suction tool main body at the maximum rotation position in the upward direction of the suction tool main body that is fitted to the vertical rotation shaft 11 of the main joint portion 5 and rotates. .

  The operation of the above configuration is as follows.

  Even if a finger of one hand is bent between the main joint part 5 and the suction tool body and bent to the maximum rotation position, the space part 20 is provided so that the finger is not pinched and is safe. is there.

(Embodiment 6)
Next, a sixth embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the configuration of the secondary joint portion 6 and the connection pipe 7 of the suction tool, an angle 21 is provided 5 degrees below the direction perpendicular to the left and right rotation shaft 12.

  The operation of the above configuration is as follows.

  The downward force 22 that presses the suction tool against the floor surface of the vector direction component of the force during operation of the suction tool acts, and the suction tool is stably grounded to the floor surface. Etc. can be reduced and usability can be improved.

  Moreover, if this angle is too small, the downward force 22 that presses the suction tool against the floor surface cannot be obtained sufficiently, and the effect of reducing the left-right wobbling or rotation of the suction tool will be diminished.

  On the other hand, when this angle becomes larger than 5 degrees, the force for pressing the suction tool downward becomes larger than the force for moving the suction tool forward, and the operation force of the suction tool becomes heavy, resulting in poor operability.

(Embodiment 7)
Next, a seventh embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the rotating part that rotates in the left-right direction with respect to the cleaning surface, the protrusion a23 is provided on the main joint part 5, and the protrusion a23 is provided on the side of the secondary joint part 6 at the neutral position of the suction tool in the left-right direction. A protrusion b24 having a recessed portion at the tip is provided, and a play 25 is provided in which the protrusion a23 can slide several times within the protrusion b24.

  The operation of the above configuration is as follows.

  Since the positioning means is provided by the click structure 26, the suction tool does not rotate carelessly, and is lightly regulated while having play 25 in the straight running direction that is frequently used. Good and can improve usability.

(Embodiment 8)
Next, an eighth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  A connecting pipe 27 and a connecting pipe 7 made of a hard material such as polypropylene resin are integrally formed at both ends of the joint pipe 8 made of a flexible material. The joint pipe 8 and the connecting pipe 27 and the connecting pipe 7 are integrally formed by integral molding. Assembling and bonding are not necessary, and assembling and air tightness can be improved.

(Embodiment 9)
Next, a ninth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  A configuration in which a rib 28 is provided on the outer peripheral upper portion of the connection pipe 7, a groove portion 30 into which the rib 28 enters is provided inside each of the secondary joint portions 29 made of two parts, and the connection pipe 7 and the main joint portion 5 are sandwiched and fixed. I made it.

  The operation of the above configuration is as follows.

  The assembly position of the three parts of the main joint part 5, the secondary joint part 29, and the connection pipe 7 can be easily regulated, and assembling accuracy and workability can be improved.

(Embodiment 10)
Next, a tenth embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 11, the joint pipe 8 made of a flexible material was formed in a bellows shape 31.

  The operation of the above configuration is as follows.

  By making the bellows shape 31, it becomes flexible against bending compression, and when the connecting pipe 7 is twisted in the left and right directions and the joint pipe 8 is bent to turn the suction tool 90 degrees in the left and right directions as shown in FIG. The operability such as can be improved, and usability can be improved.

(Embodiment 11)
Next, an eleventh embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  A partial shape of the joint pipe 8 made of a flexible material for connecting the suction port 9 and the connection pipe 7 is a trumpet shape 32, and the cross-sectional area of the joint pipe 8 is increased on the suction port 9 side so that the downstream direction of the wind It was made to change gradually so that it might become small toward the connection pipe 7 side.

  The operation of the above configuration is as follows.

  Wind flow is rectified and smoothed, and wind noise generated around the suction port can be reduced.

(Embodiment 12)
Next, a twelfth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The joint pipe 8 is gradually changed 33 so that the cross-sectional area of the joint pipe 8 becomes larger on the suction port 9 side and becomes smaller toward the left and right pivot shaft 12 of the main joint portion 5, and constant 34 from the vicinity of the left and right pivot shaft 12 to the connection pipe 7. I tried to become.

  The operation of the above configuration is as follows.

  Since the cross-sectional area of the joint pipe 8 around the left and right pivot shaft 12 is small, the joint pipe 8 has good bendability and is easy to bend, and the operation is light. improves.

(Embodiment 13)
Next, a thirteenth embodiment of the present invention will be described with reference to FIG.

  A flat portion 35 was provided on the convex surface on the inner surface side of the bellows shape 31.

  The operation of the above configuration is as follows.

  The number of irregularities per fixed length in the bellows shape 31 is reduced, turbulence of wind generated in the irregularities 36 can be reduced, wind noise is reduced, and silence can be achieved.

(Embodiment 14)
Next, a fourteenth embodiment of the present invention will be described with reference to FIG.

  The flat portion 35 is provided with an inclination 37 along the wind inflow direction so that the wind always faces the central direction.

  The operation of the above configuration is as follows.

  The wind is always directed toward the center direction, and the action of rectifying the turbulent flow of the wind generated in the uneven portion 36 on the inner wall side of the bellows shape 31 works to reduce the wind noise and achieve silence.

(Embodiment 15)
Next, a fifteenth embodiment of the present invention will be described with reference to FIG.

  The convex portion on the inner wall side of the bellows shape 31 formed R39 on the upstream ridge line and the edge 38 on the downstream ridge line in the wind inflow direction.

  The operation of the above configuration is as follows.

  In the turbulent flow of the wind generated in the concavo-convex portion 36 on the inner wall side of the bellows shape 31, the action of reducing the vortex 40 of the wind drawn into the groove by the downstream edge 38 works, and the wind engulfed by R39 on the upstream side The effect | action which discharges | emits the eddy current 40 smoothly outside acts, and a wind noise is reduced and it can aim at silence.

(Embodiment 16)
Next, a sixteenth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The vacuum cleaner suction tool, the extension pipe 44, and the hose according to any one of claims 1 to 4, wherein the vacuum cleaner main body 43 including the dust collection chamber 41 and the electric blower 42 for collecting dust therein. The vacuum cleaner excellent in cleaning workability can be provided by providing the suction inlet connected so as to communicate with the air through 45.

  In the above-described embodiments 1 to 16, the vertical rotation shaft 11 of the main joint portion 5 is rotated by fitting with the suction tool body, and the secondary joint portion 6 is rotated left and right of the main joint portion 5. Although the configuration in which the shaft 12 is fitted and rotated has been described, the same effect can be obtained even in a configuration in which the vertical rotation shaft 11 and the left and right rotation shaft 12 are interchanged as shown in FIGS. 17 and 18. It is what

Whole sectional drawing of the suction tool for vacuum cleaners which shows the 1st, 2nd, 4th embodiment of this invention Whole top view of the vacuum cleaner suction tool showing the first and second embodiments of the present invention The partially broken side view of the vacuum cleaner suction tool which shows the 1st, 3rd embodiment of this invention Whole top view of the vacuum cleaner suction tool showing the first and tenth embodiments of the present invention The partially broken side view of the vacuum cleaner suction tool which shows the 5th Embodiment of this invention Sectional drawing of the principal part of the vacuum cleaner suction tool which shows the 6th Embodiment of this invention Whole side view of the vacuum cleaner suction tool showing the sixth embodiment of the present invention The principal part top view of the suction tool for the vacuum cleaner which shows the 7th Embodiment of this invention Sectional drawing of the principal part of the vacuum cleaner suction tool which shows the 8th Embodiment of this invention. The exploded top view of the vacuum cleaner suction tool which shows the 9th Embodiment of this invention Sectional drawing of the principal part of the suction tool for the vacuum cleaner which shows the 10th, 11th embodiment of this invention The principal part top view of the suction tool for the vacuum cleaner which shows the 12th Embodiment of this invention Sectional drawing of the principal part of the vacuum cleaner suction tool which shows the 13th Embodiment of this invention. Sectional drawing of the principal part of the suction tool for the vacuum cleaner which shows 14th Embodiment of this invention Sectional drawing of the principal part of the vacuum cleaner suction tool which shows 15th Embodiment of this invention Whole side view of the same vacuum cleaner showing the sixteenth embodiment of the present invention The whole side view of the suction tool for the vacuum cleaner which shows another structure of the 1st-16th embodiment of this invention. The whole top view of the suction tool for the vacuum cleaner which shows another structure of the 1st-16th embodiment of this invention. Cross-sectional view of a conventional vacuum cleaner suction tool Whole perspective view of a conventional vacuum cleaner suction tool

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper frame 2 Lower frame 3 Dust collection chamber 4 Opening 5 Main joint part 6 Subjoint part 7 Connection pipe 8 Joint pipe 9 Suction port 10 Longitudinal direction a
DESCRIPTION OF SYMBOLS 11 Vertical rotation axis | shaft 12 Left / right rotation axis | shaft 16 Inclination 18 Roller 20 Space part 21 5 degrees 26 Click structure 27 Connection pipe 31 Bellows shape 32 Trumpet shape 35 Flat part 37 Inclination 38 Edge 39 R
41 Dust collection chamber 42 Electric blower 43 Vacuum cleaner body 44 Extension pipe 53 Longitudinal direction c
54 Almost parallel

Claims (4)

A dust collection chamber having a lower opening; a suction port for sucking air containing dust in the dust collection chamber; a suction tool body provided with the dust collection chamber and the suction port therein; and a vertical direction with respect to the suction tool body. A main joint portion having a vertical rotation shaft supported so as to be rotatable in a direction and a left and right rotation shaft orthogonal to the vertical rotation shaft and a connection pipe are held, and the left and right rotation shafts of the main joint portion are rotated left and right. A joint portion composed of a slave joint portion movably supported, and a joint pipe made of a flexible material and arranged in the joint portion to connect the suction port and the connection pipe to form a dust collecting passage. An extension pipe connected to the connection pipe in the longitudinal direction of the suction tool body by turning the main joint part in the vertical direction and turning the slave joint part in the horizontal direction with respect to the suction tool body. A vacuum cleaner suction tool capable of swiveling so as to be substantially parallel to the longitudinal direction, The shape is a trumpet shape, the cross-sectional area of the joint pipe is large on the suction port side, gradually changed so as to decrease toward the left and right pivot shaft of the main joint portion, and from the vicinity of the left and right pivot shaft to the connection pipe Vacuum cleaner suction tool designed to be constant. A connecting pipe made of a hard material and connected to a suction port and a connecting pipe provided with a rib on the outer periphery are integrally formed at both ends of the joint pipe made of a flexible material. A two-part configuration composed of parts, a groove part into which the rib enters inside each of the secondary joint parts of the two parts, and a structure in which the connecting pipe and the left and right rotation shafts of the main joint part are sandwiched and fixed, respectively. Item 1. A vacuum cleaner suction tool according to item 1. The vacuum cleaner suction tool according to claim 1 or 2, wherein the joint pipe made of a flexible material is formed in a bellows shape. The suction connected to the vacuum cleaner main body provided with the dust collection chamber which collects dust inside, and an electric blower so that it may communicate with at least the suction tool for vacuum cleaners of any one of Claims 1-3 A vacuum cleaner with a mouth.

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