CN110353562B - Suction nozzle for electric dust collector - Google Patents
Suction nozzle for electric dust collector Download PDFInfo
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- CN110353562B CN110353562B CN201910278019.5A CN201910278019A CN110353562B CN 110353562 B CN110353562 B CN 110353562B CN 201910278019 A CN201910278019 A CN 201910278019A CN 110353562 B CN110353562 B CN 110353562B
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- nozzle
- suction nozzle
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- vacuum cleaner
- rotation axis
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
Abstract
The invention provides a suction nozzle for an electric dust collector, which can move in a free direction of a floor surface by using an inexpensive structure. The detachable suction nozzle as the suction nozzle for the electric dust collector comprises: a suction nozzle main body; a joint portion which can rotate around a first rotation Axis (AX) formed along the longitudinal direction of the suction nozzle main body; and a connecting cylinder portion formed at an end of the joint portion, wherein a ball caster contacting a floor surface (S) as a surface to be cleaned is provided on one side, i.e., a rear side, in a short-side direction of the nozzle body, a sliding portion contacting the floor surface (S) is provided on the other side, i.e., a front side, in the short-side direction of the nozzle body, and the first rotation Axis (AX) is provided between the ball caster and the sliding portion in the short-side direction and at a position close to the ball caster, whereby the nozzle body can be freely moved in a horizontal direction without lifting up a front portion or a rear portion of the nozzle body with an inexpensive structure.
Description
Technical Field
The present invention relates to a suction nozzle for an electric vacuum cleaner.
Background
Conventionally, as such a suction nozzle for an electric vacuum cleaner, there is known a suction nozzle body for an electric vacuum cleaner having: a pair of right and left wheels are provided in front and rear of a main body case (corresponding to a nozzle body of the present invention), and the direction of the wheels can be freely changed (see, for example, patent document 1). A vacuum cleaner suction nozzle for a vacuum cleaner is also known, in which a pair of right and left ball casters is provided at a central portion in a front-rear direction of a nozzle body (see, for example, patent document 2). By using such wheels or ball casters, the suction nozzle for the electric vacuum cleaner can be moved in the front-rear left-right free direction.
Prior art documents
Patent document
Patent document 1: japanese patent No. 3457909
Patent document 2: japanese laid-open patent publication No. 3-195526
However, in the suction nozzle for an electric vacuum cleaner as in reference 1, since the wheels need a certain moving distance in order to change the direction, there is a problem that the wheels are bent greatly when trying to change the direction abruptly. Further, since each wheel requires a mechanism for changing the direction of the wheel, there is also a problem that the cost increases. If the wheel is a ball caster as in reference 2, the problem of a large curve when the direction is changed suddenly can be solved, but the problem of an increase in cost is not solved because the ball caster which can operate smoothly for a long time is expensive. In the comparative document 2, the number of the ball casters is two, and the increase in cost can be suppressed, but in this configuration, the front side or the rear side is raised when the nozzle is moved, and another problem occurs in that dust cannot be satisfactorily sucked.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a suction nozzle for an electric vacuum cleaner that can move in a free direction on a floor surface with an inexpensive configuration.
The suction nozzle for an electric vacuum cleaner according to claim 1 of the present invention includes: a nozzle body having a long side direction and a short side direction; a joint portion rotatable about a first rotation axis formed in the longitudinal direction; and a connection cylinder portion formed at an end of the joint portion, wherein a ball caster that contacts a surface to be cleaned is provided on one side of the suction nozzle body in the short-side direction, a slide portion that contacts the surface to be cleaned is provided on the other side of the suction nozzle body in the short-side direction, and the first rotation shaft is provided between the ball caster and the slide portion in the short-side direction and in a position close to the ball caster.
Further, in claim 1, in the suction nozzle for an electric vacuum cleaner recited in claim 2 of the present invention, the joint portion includes a relief portion that is rotatable about the first rotation axis, and a rotating portion that is rotatable about a second rotation axis that intersects with the first rotation axis and a central axis of the connecting cylinder portion, and the rotating portion is configured to be tiltable in the longitudinal direction.
In addition to claim 2, in the suction nozzle for an electric vacuum cleaner according to claim 3 of the present invention, the undulation portion is configured to be tiltable toward the other side in the short-side direction.
In addition to claim 3, in the suction nozzle for an electric vacuum cleaner according to claim 4 of the present invention, the pivot portion is provided on the other side in the short-side direction of the undulation portion in a state where the joint portion is upright, and the pivot portion is positioned above the suction nozzle main body in a state where the undulation portion is inclined to the other side in the short-side direction to the maximum extent.
The suction nozzle for an electric vacuum cleaner according to claim 1 of the present invention is configured as described above, and thus the suction nozzle body can be freely moved in the horizontal direction with an inexpensive configuration without lifting one side or the other side in the short-side direction of the suction nozzle body.
Further, the joint portion includes a relief portion rotatable about the first rotation axis, and a rotation portion rotatable about a second rotation axis intersecting the first rotation axis and a central axis of the connection cylinder portion, and the rotation portion is configured to be tiltable in the longitudinal direction, whereby the direction of the nozzle body can be changed by rotating the connection cylinder portion about the central axis.
Further, the undulation portion is configured to be tiltable to the other side in the short side direction, and therefore, even if the connecting cylinder portion is excessively rotated about the central axis due to a user's preference, dust can be satisfactorily sucked without lifting the spherical leg side of the nozzle body.
Further, since the rotating portion is provided on the other side in the short-side direction of the undulating portion in a state where the joint portion is upright, and the rotating portion is located above the nozzle body in a state where the undulating portion is inclined to the other side in the short-side direction to the maximum, dust can be sucked satisfactorily without lifting the ball caster side when the nozzle body is operated in a posture in which the longitudinal direction of the nozzle body is made to be front-back.
Drawings
Fig. 1 is a plan view showing a suction nozzle for an electric vacuum cleaner according to an embodiment of the present invention.
Fig. 2 is a bottom view of a suction nozzle for an electric vacuum cleaner according to an embodiment of the present invention.
Fig. 3 is a right side view of the vacuum cleaner nozzle according to the embodiment of the present invention, where (a) is a view showing a state where the joint portion is laid down, and (b) is a view showing a state where the joint portion is erected.
Fig. 4 is an external view showing a state in which a rotating portion of a suction nozzle for a vacuum cleaner according to an embodiment of the present invention is tilted to the right side, wherein (a) is a front view and (b) is a right side view.
Fig. 5 is a right side view of the entire vacuum cleaner in a use state in which the longitudinal direction of the nozzle body is set to the left-right direction in the vacuum cleaner nozzle according to the embodiment of the present invention.
Fig. 6 is a right side view of the entire vacuum cleaner in a state in which the suction nozzle body of the vacuum cleaner nozzle according to the embodiment of the present invention is used with the longitudinal direction of the nozzle body in the front-rear direction.
Fig. 7 is a right side view showing a posture of a joint portion of a nozzle body with respect to an electric vacuum cleaner nozzle according to an embodiment of the present invention, where (a) is a view showing a state of being tilted from an upright state to a front side, and (b) is a view showing a state of being tilted from the upright state to a rear side.
Description of the reference numerals
1 attachment/detachment nozzle (suction nozzle for electric vacuum cleaner) 92 attachment/detachment nozzle (suction nozzle for electric vacuum cleaner) 93 nozzle body 94 joint part 95 connecting cylinder part 99 spherical caster 99A grounding point 100 sliding part 102 rising part 103 rotating part AX first rotating shaft AY connecting center axis AZ of cylinder part second rotating shaft S floor surface (surface to be cleaned)
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to fig. 1 to 7. In the present embodiment, the upper and lower sides and the front and rear sides are defined based on fig. 3. That is, the top and bottom of fig. 3 are the top and bottom of the present embodiment, the left side is the front side of the present embodiment, and the right side is the rear side of the present embodiment. Reference numeral 1 denotes an electric vacuum cleaner. The electric vacuum cleaner 1 is configured to have a main body 2 and a connector 90.
The body 2 includes a cylindrical portion 4, a grip portion 5, a first connecting portion 6, and a second connecting portion 7. The cylindrical portion 4 is formed in a substantially cylindrical shape. Further, a suction port 4B is provided at a lower portion of the cylindrical body 4. The grip portion 5 is formed in a substantially cylindrical shape. The grip portion 5 is provided at a predetermined interval from the upper end portion 4A of the barrel portion 4. The grip portion 5 is provided in parallel with the upper end portion 4A of the barrel portion 4. The upper end portion 4A of the cylindrical portion 4 and the grip portion 5 are connected by the first connecting portion 6 and the second connecting portion 7. The first connecting portion 6 connecting the front side of the upper end portion 4A of the cylindrical body 4 and the front side of the grip portion 5 is provided so as to be orthogonal to the upper end portion 4A of the cylindrical body 4 and the grip portion 5. On the other hand, the second connecting portion 7 connecting the rear side of the upper end portion 4A of the barrel portion 4 and the rear side of the grip portion 5 is formed such that the front edge 7A thereof is parallel to the first connecting portion 6. An operation unit 8 and a display unit 9 are provided in front of the grip unit 5. The operation unit 8 is a push button switch. The display unit 9 is provided in front of the first coupling unit 6 of the grip unit 5. The display unit 9 is provided with an LED, not shown, inside and is provided in a ring shape over the entire circumference of the cylindrical side surface of the grip 5. Therefore, the light emitted from the display unit 9 can be visually recognized from a wide range around the main body 2.
The connector 90 is detachably attached to the suction port 4B. The connector 90 is configured to have an extension pipe 91 and a detachable suction nozzle 92 as a suction nozzle for the electric vacuum cleaner. As shown in fig. 5 and 6, the detachable suction nozzle 92 is connected to the suction port 4B via the extension pipe 91, but may be directly connected to the suction port 4B.
The loading/unloading suction nozzle 92 will be described in detail. The detachable suction nozzle 92 includes a nozzle main body 93, a joint portion 94, and a connection tube portion 95. The left-right direction of the suction nozzle main body 93 is a long side direction, and the front-back direction is a short side direction. A suction opening 96 formed long in the left-right direction is provided on the lower front side of the nozzle main body 93. A notch 97 that opens rearward and upward is formed in the center of the rear portion of the nozzle main body 93. The joint 94 is swingably attached to the notch 97. Further, a protruding portion 98 protruding rearward is formed around the notch portion 97. Ball casters 99 are provided on the left and right sides of the cutout portion 97 of the protruding portion 98 so as to be exposed downward. The ball caster 99 is in contact with a floor surface S as a surface to be cleaned. Further, a pair of sliding portions 100 are provided near both left and right ends of the front portion of the nozzle body 93. The sliding portion 100 is made of a pile fabric and is in contact with a floor surface S as a surface to be cleaned. Further, the ball caster 99 is provided with a bearing structure inside so as to be smoothly operated. Thus, the ball caster 99 itself is a relatively large and expensive component. Therefore, if the ball casters 99 are provided at the rear and front portions of the nozzle main body 93, the detachable nozzle 92 is not only large but also expensive. This effect is further increased by the structure in which the rotary brush is provided in the suction opening 96. On the other hand, as described later, since the first rotation axis AX of the undulation portion 102 is located rearward between the ball caster 99 and the slide portion 100, the load applied to the front side of the nozzle main body 93 is smaller than the load applied to the rear side. Therefore, it is preferable that the sliding member 100 made of a lint be provided on the front side of the nozzle body 93. Since the slide member 100 is cheaper than the ball caster 99 and the space for mounting can be reduced, the detachable suction nozzle 92 can be made inexpensive and compact. Further, since the load applied to the rear portion of the nozzle main body 93 is large, if the sliding member 100 made of the lint is provided in this portion, it is worn in a short time. Therefore, the nozzle body 93 is preferably provided with a slide member 100 on the front side and ball casters 99 on the rear side. Further, a brush 101 formed long in the left-right direction is provided behind the suction opening 96.
The joint portion 94 has a relief portion 102 and a rotation portion 103. The undulation portion 102 includes a rocking cylinder portion 104, a connecting pipe 105, and a connecting portion 106. On the other hand, the rotating portion 103 includes a connecting portion 107 and the connecting cylindrical portion 95. The pivot cylinder 104 is supported by the notch 97 so as to be pivotable such that the first pivot axis AX is oriented in the lateral direction. The first rotation axis AX is located forward of a ground point 99A of the ball caster 99 and rearward of an intermediate position between the ball caster 99 and the sliding unit 100. In other words, the first rotation axis AX is located rearward between the ball caster 99 and the sliding unit 100. The connecting pipe 105 extends in a direction intersecting the first rotation axis AX, and is formed integrally with the connecting pipe 105. Further, the connecting portion 107 of the rotating portion 103 is rotatably connected to the connecting portion 106 about a second rotation axis AZ. As shown in fig. 3(b), the connection portion 107 of the rotating portion 103 is located in front of the connection portion 106 of the undulating portion 102 in the upright state of the joint portion 94. In this manner, since the connection portion 107 of the rotating portion 103 is positioned in front of the connection portion 106 of the undulating portion 102, the direction of the nozzle body 93 can be changed by twisting the connection cylindrical portion 95, the extension pipe 91 connected to the connection cylindrical portion 95, and the body 2 around the central axis AY of the connection cylindrical portion 95. In a state where the joint portion 94 stands upright, the connection portion 107 of the rotating portion 103 is located at a substantially center in the front-rear direction of the nozzle main body 93. The second rotation axis AZ is orthogonal to the first rotation axis AX. The second rotation axis AZ is orthogonal to the central axis AY direction. However, since the rotating portion 103 rotates about the second rotation axis AZ, the first rotation axis AX is not necessarily orthogonal to the central axis AY. Therefore, the undulation portion 102 is connected to the nozzle body 93 so as to be rotatable about the first rotation axis AX. The rotation portion 103 is connected to the undulation portion 102 so as to be rotatable about the second rotation axis AZ. That is, the rotating portion 103 is configured to be tiltable in the left-right direction with respect to the nozzle main body 93
As shown in fig. 3(a), the joint 94 can be tilted rearward to a horizontal state. On the other hand, the joint portion 94 can be tilted forward by 10 degrees from the upright state shown in fig. 3 (b). In this manner, when the joint portion 94 is tilted forward by 10 degrees from the upright position, the connection portion 107 of the rotating portion 103 is positioned above the nozzle main body 93. More specifically, the connection portion 107 is located between the grounding point 99A of the ball caster 99 and the sliding portion 100.
Next, the operation of the present embodiment will be described. Although not shown in fig. 5 and 6, the user holds the grip portion 5 with the right hand. When cleaning the upper side of the floor surface S as a surface to be cleaned, the user grips the grip portion 5 in a posture in which the first coupling portion 6 and the second coupling portion 7 are arranged in the front-rear direction as shown in fig. 5. In this posture, the longitudinal direction of the nozzle body 93 of the detachable nozzle 92 is the left-right direction. The angles of the main body 2, the extension pipe 91, and the joint 94 with respect to the floor surface S are 60 degrees in the case of fig. 5, but may be changed according to the body size of the user, the positional relationship between the user and the electric vacuum cleaner 1, the preference of the operation mode, and the like. Therefore, in the following description, when the posture is described, the difference in the angle with the floor surface S is not considered. When the user presses the operation unit 8 while keeping the posture, an electric blower, not shown, provided in the body portion 4 of the main body 2 is operated to generate a suction airflow. The suction airflow is sucked from the suction opening 96, and flows from the suction port 4B into the cylindrical body 4 through the nozzle main body 93, the joint 94, the connecting cylinder 95, and the extension pipe 91. At this time, dust in the suction airflow is separated by a filter bag, not shown, provided in the cylindrical body 4. The mechanism for separating dust may be a cyclone separator or the like. The suction airflow is discharged from the electric blower to the outside of the cylindrical body 4 through an exhaust port, not shown. Further, by pressing the operation unit 8, light is emitted from the display unit 9.
The user moves the electric vacuum cleaner 1 along the floor surface S in the front-rear direction indicated by the double-headed arrow D in fig. 5 while keeping the posture thereof, thereby sucking dust on the floor surface S. The attachment/detachment suction nozzle 92 can be operated not only in the front-rear direction indicated by the double-headed arrow D but also in the left-right direction. That is, the detachable suction nozzle 92 can be shifted or bent in the right-and-left direction. At this time, the ball caster 99 can roll in all directions on the floor surface S, and the sliding member 100 can also slide in all directions on the floor surface S. Therefore, the loading/unloading suction nozzle 92 can freely move in all directions on the floor surface S. In addition, since the ball caster 99 and the slide member 100 can instantaneously change the moving direction, the detachable suction nozzle 92 can be moved while being bent slightly. As described above, the first rotation axis AX of the joint portion 94 is located forward of the grounding point 99A of the ball caster 99. More specifically, the first rotation axis AX is located between the grounding point 99A and the sliding portion 100. Therefore, when the detachable suction nozzle 92 is operated forward, the front side of the suction nozzle main body 93 does not lift. Therefore, the distance between the suction opening 96 and the floor surface S can be appropriately maintained.
When the user turns the grip portion 5 by 90 degrees counterclockwise (clockwise in the front view) as viewed from the user from the posture of fig. 5, the posture of fig. 6 is obtained. In this posture, the first coupling portion 6 is on the left side (right side in the front view) as viewed from the user, and the second coupling portion 7 is on the right side (left side in the front view) as viewed from the user. In this posture, the longitudinal direction of the nozzle body 93 of the detachable nozzle 92 is the front-rear direction. In this case, the right side of the nozzle main body 93 as viewed from the user is the front side, and the left side is the rear side (in the front view, the left side of the nozzle main body 93 is the front side, and the right side is the rear side). Further, when the user grips the grip portion 5 with the left hand and rotates the grip portion 5 clockwise as viewed from the user, the right side of the nozzle main body 93 as viewed from the user is the rear side and the left side is the front side (in the front view, the right side of the nozzle main body 93 is the front side and the left side is the rear side) contrary to fig. 6. In this posture, the nozzle body 93 can be inserted into the space wider than the distance from the front end of the nozzle body 93 to the rear end of the protrusion 98. Further, the twist angle of the grip portion 5 coincides with the rotation angle of the nozzle main body 93 in the horizontal direction. That is, when the grip 5 is twisted by 45 degrees counterclockwise as viewed from the user, the nozzle body 93 rotates by 45 degrees counterclockwise.
The user moves the electric vacuum cleaner 1 along the floor surface S in the front-rear direction indicated by the double-headed arrow D in fig. 6 while keeping the posture thereof, thereby sucking dust on the floor surface S. Further, the nozzle body 93 is moved in a direction different by 90 degrees from the posture of fig. 5 with reference thereto. However, since the ball casters 99 and the slide member 100 are provided in the nozzle body 93 as described above, the detachable nozzle 92 can be operated in the direction of the double-headed arrow D in fig. 6 with almost no resistance. The attachment/detachment suction nozzle 92 can be operated not only in the front-rear direction indicated by the double-headed arrow D but also in the left-right direction. That is, the detachable suction nozzle 92 can be shifted or bent in the right-and-left direction. At this time, the ball caster 99 can roll in all directions on the floor surface S, and the slide member 100 can slide in all directions on the floor surface S, so that the attachment/detachment suction nozzle 92 can freely move in all directions on the floor surface S. In addition, since the ball caster 99 and the slide member 100 can instantaneously change the moving direction, the detachable suction nozzle 92 can be moved while being bent slightly. In the detachable nozzle 92 in the posture of fig. 6, as shown in fig. 4(b), the connection portion 107 of the rotating portion 103 of the joint portion 94 is located substantially above the center of the nozzle main body 93. Therefore, when the detachable suction nozzle 92 is moved in the direction of the double-headed arrow D, the suction opening 96 side and the projection 98 side of the nozzle body 93 can be moved well without being lifted from the floor surface S.
Depending on the preference of the user, the twist may be larger than 90 degrees or smaller than 90 degrees from the posture of fig. 5. In addition, depending on the preference of the user, there is a possibility that the electric vacuum cleaner 1 may accidentally rotate about the central axis AY when being moved in the direction of the double-headed arrow D from the posture of fig. 6. However, as described above, the joint portion 94 can be rotated between a state of being horizontal to the protruding portion 98 side (rear) and a state of being inclined by 10 degrees toward the suction opening 96 side (front). Therefore, even if the user twists the grip portion 5 by 100 degrees from the posture of fig. 5, the joint portion 94 can be inclined by 10 degrees from the vertical direction toward the suction opening 96 side, and therefore, this is allowed. Even if the user twists the grip portion 5 by 80 degrees from the posture of fig. 5, the joint portion 94 is inclined by 10 degrees from the vertical direction toward the protrusion portion 98 side. Therefore, even if the twisting amount of the grip portion 5 is slightly different from 90 degrees, it is allowable.
When the user twists the grip portion 5 by more than 100 degrees from the posture of fig. 5, the projecting portion 98 side is lifted from the floor surface S. However, when the angle of twisting the grip portion 5 from the posture of fig. 5 is not 90 degrees, the longitudinal direction of the nozzle main body 93 is not parallel to the direction of the double-headed arrow D, and an angle corresponding to the difference of 90 degrees is formed. Therefore, the magnitude or the magnitude of the twist angle of the grip portion 5 can be known by observing the detachable suction nozzle 92. Therefore, the user can adjust the twist angle of the grip portion 5 so that the longitudinal direction of the nozzle main body 93 is substantially parallel to the direction of the double-headed arrow D. In addition, even if a rotational motion is generated around the central axis AY when the detachable suction nozzle 92 is moved in the direction of the double-headed arrow D, the rotational motion is allowed as long as the rotational motion is within the range of the joint 94. Further, when the connection cylinder 95 rotates about the center axis AY, the nozzle main body 93 swings in the horizontal direction. However, since the ball casters 99 and the slide member 100 are provided in the nozzle body 93, the detachable nozzle 92 can be smoothly moved in the direction of the double-headed arrow D even when swinging while rotating.
The joint 94 can be moved in the direction of the double-headed arrow D while being tilted forward by 10 degrees with respect to the vertical direction. In this case, as described above, the connection portion 107 of the pivoting portion 103 is also located above the nozzle main body 93, and more specifically, between the grounding point 99A of the ball caster 99 and the sliding portion 100. Therefore, when the detachable suction nozzle 92 is moved in the direction of the double-headed arrow D, the suction opening 96 side and the projection 98 side of the nozzle body 93 can be moved well without being lifted from the floor surface S.
As described above, the detachable suction nozzle 92 as the suction nozzle for the electric vacuum cleaner of the present invention includes: a nozzle main body 93, the nozzle main body 93 having a long side direction and a short side direction; a joint portion 94, the joint portion 94 being rotatable about a first rotation axis AX formed along the longitudinal direction; and a connecting cylinder portion 95 formed at an end of the joint portion 94, wherein a ball caster 99 contacting a floor surface S as a surface to be cleaned is provided on one side, i.e., a rear side, in a short-side direction of the nozzle body 93, a sliding portion 100 contacting the floor surface S is provided on the other side, i.e., a front side, in the short-side direction of the nozzle body 93, and the first rotation axis AX is provided between the ball caster 99 and the sliding portion 100 in the short-side direction and at a position close to the ball caster 99, whereby the nozzle body 93 can be freely moved in a horizontal direction with an inexpensive structure without lifting up a front portion or a rear portion of the nozzle body 93.
Further, the joint portion 94 of the detachable nozzle 92 of the present invention includes a relief portion 102 and a rotating portion 103, the relief portion 102 is rotatable about the first rotation axis AX, the rotating portion 103 is rotatable about a second rotation axis AZ intersecting the first rotation axis AX and a central axis AY of the connecting cylinder 95, and the rotating portion 103 is configured to be tiltable in the left-right direction as the longitudinal direction, so that the direction of the nozzle body 93 can be changed by rotating the connecting cylinder 95 about the central axis AY.
Further, the undulation portion 102 of the detachable nozzle 92 of the present invention is configured to be inclined forward by 10 degrees, so that even if the connection cylinder portion 95 is excessively rotated about the central axis AY by the preference of the user, dust can be satisfactorily sucked without lifting up the ball caster 99 side of the nozzle main body 93.
In the detachable nozzle 92 of the present invention, the rotating portion 103 is provided in front of the undulation portion 102 in a state where the joint portion 94 is upright, and the connecting portion 107 of the rotating portion 103 is located above the nozzle main body 93 in a state where the undulation portion 102 is inclined forward to the maximum extent, so that when the detachable nozzle 92 is operated in a posture where the longitudinal direction of the nozzle main body 93 is oriented forward and backward, dust can be sucked satisfactorily without lifting up the ball caster 99.
The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention. For example, in the above embodiment, the ball caster 99 is provided on the projection 98 projecting from the rear portion of the nozzle main body 93, but the ball caster 99 may be provided on the nozzle main body 93 without providing the projection 98. In the above embodiment, the inclination angle of the joint portion 94 with respect to the vertical direction is set to 10 degrees at the maximum, but may be set to 10 degrees or more, or may be set to 10 degrees or less.
Claims (3)
1. A suction nozzle for an electric vacuum cleaner, comprising: a nozzle body having a long side direction and a short side direction; a joint portion rotatable about a first rotation axis formed in the longitudinal direction; and a connection cylinder part formed at an end of the joint part, the suction nozzle for an electric vacuum cleaner being characterized in that,
a ball caster connected to a surface to be cleaned is provided on one side of the nozzle body in the short-side direction, a sliding portion connected to the surface to be cleaned is provided on the other side of the nozzle body in the short-side direction, and the first rotating shaft is provided between the ball caster and the sliding portion in the short-side direction and near the ball caster,
the joint portion includes a relief portion rotatable about the first rotation axis, and a rotation portion rotatable about a second rotation axis intersecting the first rotation axis and a central axis of the connection tube portion, and the rotation portion is configured to be tiltable in the longitudinal direction.
2. A suction nozzle for an electric vacuum cleaner according to claim 1,
the undulation portion is configured to be tiltable to the other side in the short direction.
3. A suction nozzle for an electric vacuum cleaner according to claim 2,
the rotation portion is provided on the other side of the undulation portion in the short-side direction in a state where the joint portion is upright, and the rotation portion is positioned above the nozzle body in a state where the undulation portion is inclined to the other side of the short-side direction to the maximum extent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018076352A JP7080094B2 (en) | 2018-04-11 | 2018-04-11 | Vacuum cleaner nozzle |
| JP2018-076352 | 2018-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110353562A CN110353562A (en) | 2019-10-22 |
| CN110353562B true CN110353562B (en) | 2022-02-22 |
Family
ID=68214820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910278019.5A Active CN110353562B (en) | 2018-04-11 | 2019-04-09 | Suction nozzle for electric dust collector |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7080094B2 (en) |
| CN (1) | CN110353562B (en) |
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2018
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2019
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| JP2010148672A (en) * | 2008-12-25 | 2010-07-08 | Toshiba Corp | Suction nozzle body and vacuum cleaner |
| CN102939037A (en) * | 2010-06-14 | 2013-02-20 | 松下电器产业株式会社 | Upright floor surface treating apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110353562A (en) | 2019-10-22 |
| JP7080094B2 (en) | 2022-06-03 |
| JP2019180900A (en) | 2019-10-24 |
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