WO2010137425A1 - Suction opening body and electric cleaner - Google Patents
Suction opening body and electric cleaner Download PDFInfo
- Publication number
- WO2010137425A1 WO2010137425A1 PCT/JP2010/056914 JP2010056914W WO2010137425A1 WO 2010137425 A1 WO2010137425 A1 WO 2010137425A1 JP 2010056914 W JP2010056914 W JP 2010056914W WO 2010137425 A1 WO2010137425 A1 WO 2010137425A1
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- WIPO (PCT)
- Prior art keywords
- traveling wheel
- rotating body
- suction port
- rotating
- shaft
- Prior art date
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Classifications
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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
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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
Definitions
- the present invention relates to a suction port body having a rotating body unit attached to a case body and a vacuum cleaner provided with the same.
- so-called canister-type vacuum cleaners include a vacuum cleaner main body that houses an electric blower and a pipe portion that is connected to the base end side of the vacuum cleaner main body.
- the pipe portion has a hose body, an extension pipe, and a floor brush as a suction port body.
- the floor brush includes a horizontally long case body, and a connecting pipe that is rotatably connected to a rear portion of a central region in the left-right width direction of the case body and that can be connected to a distal end of an extension pipe.
- a horizontally long suction port is formed as an opening on the lower surface of the case body that faces the floor surface to be cleaned.
- large-diameter running wheels which are rotating body units, are rotatably attached to smooth the climbing of steps such as sills and carpets and improve the running performance on the floor surface. It has been.
- These traveling wheels are configured such that a wheel portion, which is an annular rotating body portion having flexibility, is attached to an outer peripheral portion of a relatively hard traveling wheel main body.
- These traveling wheels are arranged such that the front end side slightly protrudes forward from the front portion of the case body. The operator grips the grip portion formed at the tip of the hose body and cleans the floor brush by running back and forth on the floor surface via the extension pipe (see, for example, Patent Document 1). .
- the floor brush described above has a problem that when traveling toward an obstacle such as a wall, the front part of the traveling wheel collides with the obstacle before the case body and receives a large impact. is doing.
- This invention is made in view of such a point, and it aims at providing the suction inlet body which improved the buffering property, without reducing driving
- the rotating body unit includes a shaft portion rotatably supported by the case body, a rotating body portion at least partially positioned around the shaft portion, and the shaft portion and the rotating body portion. And an urging means for urging the rotating body portion with respect to the shaft portion.
- the rotating body portion is attached to the shaft portion between the shaft portion rotatably supported by the case body and the rotating body portion at least partially positioned around the shaft portion.
- FIG. 1 shows a rotary body unit of a suction port body according to a first embodiment of the present invention, in which (a) is a cross-sectional view at a position corresponding to AA in FIG. 6, and (b) is in BB in FIG. It is sectional drawing in the position corresponding.
- It is a disassembled plan view which shows the state before an assembly of a rotary body unit same as the above. It is a top view which shows the state which inserted the axial part of the rotary body unit same as the rotary body part. It is a top view which shows the state which rotated the axial part same as the above with respect to the rotary body part.
- FIG. 1 It is a perspective view which shows the vacuum cleaner provided with the suction inlet same as the above. It is a side view which shows the rotary body unit of the 2nd Embodiment of this invention. It is a side view which shows the suction inlet of the 3rd Embodiment of this invention. It is a top view which shows a suction inlet same as the above. It is a top view which shows operation
- the rotating body unit of the suction inlet body of the 4th Embodiment of this invention is shown, (a) is sectional drawing in the position equivalent to CC of FIG.
- (b) is DD of FIG. It is sectional drawing in the position corresponding.
- It is a disassembled plan view which shows the state before an assembly of a rotary body unit same as the above. It is a top view which shows the state which inserted and rotated the axial part of the rotary body unit same as the above. It is a top view which shows the state which attached the biasing means between the shaft part same as the above, and a rotary body part.
- reference numeral 11 denotes a vacuum cleaner.
- the vacuum cleaner 11 is configured to collect dust sucked together with intake air generated by driving the electric blower 13 housed in the cleaner body 12. To collect.
- the vacuum cleaner main body 12 houses a main body control circuit (not shown) as a main body control means for controlling the operation of the electric blower 13, and a main body suction port 14 for sucking air from the outside is opened at the front. ing.
- the main body suction port 14 is connected to a flexible and bendable elongated substantially cylindrical hose body 15 in communication.
- a hand operation unit 16 that can select an operation mode of the electric blower 13 is provided.
- the hand operating unit 16 is provided with a gripping portion 17 that is gripped by an operator when cleaning, and projects a predetermined signal to the main body control circuit to clean the gripping portion 17.
- a plurality of setting buttons 18 for setting the electric blower 13 and the like in the machine main body 12 to a plurality of operation modes are provided.
- an extensible and elongated cylindrical extension tube 19 is detachably connected to the tip of the hand operation unit 16 so as to be detachable. That is, the extension pipe 19 is connected to the suction side of the electric blower 13 through the hose body 15.
- a suction port that is placed on a carpet or the like on the floor surface F (FIG. 8), which is a traveling surface as a room to be cleaned, and sucks dust on the carpet.
- a floor brush 20 as a body is detachably connected. Therefore, the floor brush 20 is connected to the suction side of the electric blower 13 through the extension pipe 19, the hose body 15, and the main body suction port.
- the electric blower 13, the main body control circuit, and the like are each configured to be supplied with power from a commercial AC power source or a secondary battery.
- the floor brush 20 includes a horizontally long case body 21 serving as a suction port body, a connecting pipe 22 rotatably connected to a rear portion of the case body 21, and a case.
- a traveling wheel 23 as a rotating body unit disposed on both sides of the body 21 and a front cover 25 disposed on the front portion of the case body 21 are provided.
- the case body 21 covers the lower case 26 whose upper side is opened, the middle case 27 mounted on the lower case 26, and the upper side of the lower case 26 and the middle case 27.
- the lower case 26 and the middle case The upper case 28 that rotatably holds the connection pipe 22 between the upper case 28, the front case 29 attached to the front side of the upper case 28, and the lower case 26, the upper case 28, and the front case 29 And a bumper 30 as a buffer member.
- the case body 21 is provided with a drive source that is an electric part as a drive means (not shown), that is, a motor, and a rotating brush 32 as a rotary cleaning body rotated by the motor.
- the middle case 27 is disposed at the rear of the lower case 26 and is integrally fixed on the lower case 26.
- the front case 29 has a front rectangular inlet 36 formed in a notch at the front end.
- the front suction port 36 is formed continuously with the suction port 35 and is fitted with the front cover 25.
- the bumper 30 is formed of an elastic member such as elastomer or rubber, for example, and is continuously arranged from both sides of the case body 21 to the rear part.
- the motor can rotate forward and backward, and its drive is controlled by a control circuit (not shown).
- the rotating brush 32 has a plurality of cleaning members 38 (FIG. 8) attached around a substantially cylindrical rotating brush assembly 37 as an attaching member.
- the rotating brush assembly 37 is made of, for example, metal or synthetic resin. Further, on the outer peripheral surface of the rotating brush assembly 37, a groove portion (not shown) that holds the proximal end side of each cleaning member 38 is formed in a spiral shape.
- the cleaning member 38 is, for example, a blade that is a wiping member, brush hair that is a scraping member, or a combination of these, and the proximal end side is held in the groove portion of the rotating brush assembly 37, thereby rotating the rotating brush assembly 37.
- the distal end side protrudes in the radial direction of the rotating brush assembly 37 in a spiral wall shape along the axial direction of the rotating brush assembly 37.
- the connecting pipe 22 communicates with the suction port 35, and an end projecting rearward from the case body 21 is detachably connected to the distal end side of the extension pipe 19. Further, the connection pipe 22 is connected to a position near the rear part of the case body 21 so as to be rotatable in the vertical direction.
- each traveling wheel 23 includes a shaft portion 51 as a substantially cylindrical rotating body unit rotating shaft, a traveling wheel portion 52 as a rotating body portion that contacts the floor surface F, A plurality of, for example, four coil springs 53, which are interposed between the shaft 51 and the traveling wheel 52, and a retaining member 54 for retaining the shaft 51 from the case body 21.
- a transparent cover 55 is provided on the side opposite to the case body 21 side, that is, on the outer side. Since each traveling wheel 23 is symmetrical with each other in the left-right width direction of the floor brush 20, only one traveling wheel 23 will be described, and description of the other traveling wheel 23 will be omitted.
- the shaft portion 51 is a portion for rotatably supporting a bearing portion 61 formed on the side portion of the case body 21, and is formed of, for example, synthetic resin.
- the shaft portion 51 includes a cylindrical shaft portion main body 63, a restriction portion 65 continuing to the one end side of the shaft portion main body 63 via the cylindrical portion 64, and the entire outer periphery on the other end side of the shaft portion main body 63.
- a flange portion 66 that protrudes in a flange shape and extends along the side portion of the case body 21 is integrally provided.
- the bearing portion 61 is integrally provided with a substantially cylindrical bearing portion main body 68 and a screw boss portion 69 formed coaxially on the center side of the bearing portion main body 68. Projects sideways along the direction. Further, as shown in FIG. 7, the bearing 61 is substantially coaxial with the rotating brush 32 and is formed at a position ahead of the rotating shaft 22 a of the connecting tube 22. As a result, the traveling wheel 23 has a center position located on the front side of the center position of the rotation shaft 22a of the connecting pipe 22.
- the shaft portion main body 63 is rotatably supported by fitting the inner peripheral side to the bearing portion main body 68, and is used for locking the coil springs 53 on the outer periphery.
- a locking projection 71 is formed, and a distal end surface portion 72 as a shaft portion main body surface portion extending toward the central axis is formed on the distal end side, and an insertion hole through which the screw boss portion 69 is inserted at the center position of the distal end surface portion 72 73 is formed, and a retaining surface portion 74 extending toward the central axis is formed at the inner edge of the insertion hole 73.
- the locking protrusion 71 is formed in a semi-cylindrical shape with the front end surface 72 and the front side being substantially flush with each other, and is disposed at substantially equal intervals in the circumferential direction.
- a groove-like recess 76 for holding one end of the coil spring 53 is formed around the base end of each locking projection 71.
- the cylindrical portion 64 has a proximal end portion integrally formed around the insertion hole 73 of the distal end surface portion 72 of the shaft portion main body 63, and is coaxial with the insertion hole 73.
- the cylindrical portion 64 has a smaller diameter than the shaft portion main body 63.
- the restricting portion 65 includes an annular restricting portion main body 81 protruding in a flange shape from the entire outer peripheral surface of the tip of the cylindrical portion 64 in a radial direction, and a plurality of shaft portion restricting portions 82 protruding from the restricting portion main body 81. And integrated. Therefore, an annular fitting portion 83 is formed in a groove shape on the outer peripheral side of the cylindrical portion 64 between the restricting portion 65 and the front surface of the distal end surface portion 72 of the shaft portion main body 63.
- a plurality of shaft restricting portions 82 are formed corresponding to the coil springs 53, for example, and are spaced apart from each other at substantially equal intervals in the circumferential direction.
- the flange portion 66 covers the case body 21 side of the traveling wheel 23.
- the traveling wheel portion 52 is movably supported by each coil spring 53 in a direction intersecting (orthogonal) with the axial direction of the shaft portion 51 with respect to the shaft portion 51, in this embodiment. And substantially fixed so as not to rotate in the circumferential direction with respect to the shaft portion 51.
- the traveling wheel portion 52 includes a traveling wheel portion main body 85 as a cylindrical rotating body main body, and a plurality of portions corresponding to, for example, coil springs 53 from the inner peripheral edge of the traveling wheel portion main body 85 to the central axis direction.
- a traveling wheel part restricting part 86 as a formed rotating body restricting part and a grounding part 88 attached to a mounting recess 87 formed over the entire outer periphery of the traveling wheel part body 85 are integrally provided. ing.
- the traveling wheel part main body 85 is formed to have a diameter larger than that of the shaft part 51.
- the traveling wheel portion restricting portion 86 is slidably contacted with each shaft portion restricting portion 82 by being fitted to the fitting portion 83 of the shaft portion 51 to restrict the axial position of the shaft portion 51 and the traveling wheel portion 52 to each other. And is formed at the inner edge portion of the end portion on the side far from the case body 21, which is one end side in the axial direction of the traveling wheel portion main body 85. Further, these traveling wheel portion restricting portions 86 are formed in a substantially trapezoidal shape whose width dimension gradually decreases in the direction of the central axis of the traveling wheel portion main body 85, and are disposed at substantially equal intervals in the circumferential direction. Has been. Therefore, between the traveling wheel portion regulating portions 86, hole portions 91 (FIG.
- an attachment hole 92 for attaching the cover 55 is formed in an arc shape along the inner edge portion of the traveling wheel portion main body 85 at the base end portion of the traveling wheel portion restricting portion 86. And between the front-end
- Each hole 91 is formed to have a larger width dimension than each shaft restricting portion 82 of the shaft 51.
- Each hole 91 is formed with a cylindrical holding portion 95 for holding the other end side of the coil spring 53 so as to protrude from the inner edge portion of the traveling wheel portion main body 85 in the central axis direction.
- the ground contact portion 88 is a portion that comes into contact with the floor surface F in a state where the floor brush 20 is placed on the floor surface F. Further, the ground contact portion 88 is, for example, a brushed cloth, and is formed over the entire circumference of the traveling wheel portion main body 85.
- the grounding portion 88 is such that the front portion is located in front of the front portion of the case body 21 and the front end portion of the front cover 25 in a state where the traveling wheel 23 is pivotally supported by the bearing portion 61 of the case body 21.
- the lower part is located below the lower surface of the case body 21 while being located rearward.
- each coil spring 53 has one end portion held in each recess 76 (FIG. 1) and the other end portion held in each holding portion 95 so that the diameter of the traveling wheel 23 can be reduced. It is arranged radially along the direction.
- the coil springs 53 have substantially the same elastic coefficient, and support the traveling wheel portion 52 at a substantially coaxial position with respect to the shaft portion 51 without applying an external force.
- any biasing means formed by an elastic member (flexible member) such as rubber, leaf spring, or elastomer may be disposed between the recess 76 and the holding portion 95, Further, a tension spring or the like that urges the traveling wheel portion 52 inward in the radial direction with respect to the shaft portion 51 may be used.
- the retaining member 54 is formed in a substantially cylindrical shape and is fitted in the shaft body 63.
- the retaining member 54 is formed to have a larger diameter than the screw boss portion 69 of the bearing portion 61, and is fixed to the screw boss portion 69 via a screw 97 as a fixing means.
- the retaining surface portion 74 of the shaft portion 51 is located between the bearing portion 61 and the retaining member 54, and the shaft portion 51 is prevented from coming off from the bearing portion 61.
- the cover 55 is formed in a substantially disc shape that covers one side of the traveling wheel body 85.
- a plurality of claw portions 101 are arranged at substantially equal intervals in the circumferential direction on the peripheral portion of the cover 55. These claw portions 101 are inserted into the respective mounting holes 92 of the traveling wheel portion 52, and are respectively locked by locking convex portions 102 formed on one side in the circumferential direction of the mounting holes 92, whereby the cover 55 is It is fixed to the traveling wheel 52 so as not to come off.
- a rotation groove 103 having a longitudinal groove shape is formed in the central portion of the cover 55 along the radial direction. The turning groove 103 is for turning the cover 55 in the circumferential direction by inserting a coin or the like when the cover 55 is removed from the traveling wheel portion 52.
- the front cover 25 is formed in a horizontally long shape extending across both ends of the front suction port 36, and is curved in an arc shape so as to protrude forward in a sectional view. Further, the upper end portion of the front cover 25 is pivotally supported by the upper end portion of the front suction port 36 and is rotated forward by a front cover urging means (not shown) such as a torsion spring. It is so energized. Further, at positions near the lower end of the front cover 25, protrusions 25a and 25a are formed to protrude forward, and these protrusions 25a and 25a are in the natural state (normal state) and each running wheel 23 is formed. Projects forward from the front end of the. Note that these protrusions 25a, 25a are not essential, and a part of the front cover 25 itself may protrude forward from the front end of each traveling wheel 23.
- the shaft portion 51 is inserted into the traveling wheel portion 52 from the other end side.
- the restricting portion main body 81 is inserted into the insertion hole portion 93 from the other end side in a state where each shaft restricting portion 82 is fitted in each hole portion 91.
- each shaft portion restricting portion 82 is positioned closer to one end side than each traveling wheel portion restricting portion 86.
- a predetermined angle for example, clockwise direction, for example, about 90 ° in the present embodiment
- each shaft portion restricting portion 82 comes into sliding contact with the end face of each traveling wheel portion restricting portion 86, and FIG.
- Each traveling wheel portion restricting portion 86 is fitted to the fitting portion 83.
- the locking projections 71 of the shaft part 51 are in a state of facing the holding parts 95 of the traveling wheel part 52, so the center position of the shaft part 51 is slightly different from the center position of the traveling wheel part 52.
- the other end of the coil spring 53 is One holding part 95 is fitted and held.
- each locking projection 71 is inserted into one end of each of the other three coil springs 53 and one end of each coil spring 53 is held in each recess 76, as shown in FIG.
- the other end portion of each coil spring 53 is fitted and held in each holding portion 95.
- each coil spring 53 is fitted in each hole 91 and exposed in the axial direction of the traveling wheel 23.
- each shaft portion 51 is fitted to each bearing portion 61 on the side portion of the separately assembled case body 21, thereby screw bosses.
- Portion 69 is inserted into insertion hole 73, retaining member 54 is fitted into shaft body 63, screw 97 is screwed to screw boss portion 69, and each shaft portion 51 is attached to bearing portion 61 of case body 21. It is pivotally supported.
- each claw portion 101 of the cover 55 is inserted into each attachment hole 92 of the traveling wheel portion 52 from one end side, and the cover 55 is rotated by a predetermined angle in the circumferential direction, so that each claw portion 101 is attached to each attachment hole.
- the cover 55 is fixed to the traveling wheel portion 52 by being respectively locked to the locking projections 102 of 92.
- the connecting pipe 22 When cleaning, as shown in FIG. 11, the connecting pipe 22 is connected to the tip of the extension pipe 19, the floor brush 20 is placed on the floor F (FIG. 8), and the gripping part 17 is gripped. Then, the floor brush 20 is moved back and forth through the extension pipe 19 in a state where the desired setting button 18 is operated and the electric blower 13 is operated in the desired operation mode.
- the dust on the floor surface F (FIG. 8) is sucked together with the air by the negative pressure acting by the operation of the electric blower 13 shown in FIG.
- the sucked air is sucked in and is sucked together with dust into the dust collecting part through the extension pipe 19, the hose body 15 and the main body suction port 14 shown in FIG. 11, and the dust is collected in this dust collecting part.
- it is sucked into the electric blower 13 to become exhaust air, and is exhausted from an exhaust hole (not shown) of the cleaner body 12.
- each protrusion of the front cover 25 is projected.
- the portion 25a comes into contact with the obstacle O, and the front cover 25 rotates rearward against the urging force of the front cover urging means.
- the front part contacts the obstacle O.
- the coil spring 53 assists the separation of the floor brush 20 from the obstacle O by pressing the floor brush 20 in a direction away from the obstacle O. Therefore, the traveling operation of the floor brush 20 is facilitated, and the burden on the hand of the operator who performs the traveling operation can be reduced.
- the traveling wheel portion 52 that is partially positioned around the shaft portion 51. Further, by interposing a coil spring 53 that biases the traveling wheel portion 52 against the shaft portion 51, when the traveling wheel portion 52 collides with the obstacle O, the traveling wheel portion 52 is urged by the coil spring 53. Since it moves relative to the shaft 51 and the case body 21 and absorbs the shock, for example, the running wheel 52 is softened or increased in thickness, etc. It can be improved.
- the running wheel 52 is made of an elastic member or the like to increase its thickness to obtain sufficient buffering properties
- the weight of the floor brush 20 is reduced. While the traveling wheel portion 52 is bent and the ground contact area (grip force) with respect to the floor surface F is increased, the traveling performance may be reduced.
- the thickness of the traveling wheel portion 52 is reduced. Since a large cushioning stroke can be obtained by the coil spring 53 without increasing it, the traveling wheel portion 52 does not bend during traveling and the gripping force does not increase, and good traveling performance can be obtained.
- the traveling wheel portion 52 can be uniformly biased and supported with respect to the shaft portion 51, and the rotation of the traveling wheel 23 can be performed. Regardless of the position, it is possible to reliably obtain buffering properties.
- the floor brush 20 includes a connecting tube 22 that can be rotated in the vertical direction, the floor brush 20 is placed on the floor surface F in a state where the operator grips the grip portion 17 of the hand operation portion 16. In doing so, the front side of the case body 21 is rotated downward by the weight of the case body 21 with respect to the connection pipe 22 fixed to the hand operating section 16 side via the extension pipe 19 (solid line in FIG. 9). Attempt to ground from the front side of the case body 21 to the floor F. For this reason, the center position of the traveling wheel 23, that is, the position of the shaft portion 51 of the traveling wheel 23 that is pivotally supported by the bearing portion 61 of the case body 21 is positioned in front of the center position of the rotating shaft 22a of the connecting pipe 22. 9, when the floor brush 20 is placed on the floor surface F as shown by the solid line in FIG. 9, the traveling wheel 23 contacts the floor surface F before the case body 21. The impact at the time of mounting on the surface F can be buffered by the traveling wheels 23.
- the traveling performance can be further improved as compared with the case where the traveling wheels 23 are disposed only at one central portion of the case body 21.
- the traveling performance can be further improved as compared with the case where the traveling wheels 23 are disposed only at one central portion of the case body 21.
- at least one of the traveling wheels 23 can be reliably brought into contact with the obstacle O regardless of the angle between the floor brush 20 and the obstacle O. , Buffering can be secured.
- the operator presses the floor brush 20 against the obstacle O, so that the pressing causes the shaft portions 51 of the traveling wheels 23 and 23 (the bearing portions 61 of the case body 21).
- vibration generated by the rotational drive of the rotating brush 32 can be absorbed by the coil spring 53 of the traveling wheel 23 and can be hardly transmitted to the floor F or the like.
- the traveling wheel 23 can move against the obstacle O when the floor brush 20 travels in the front-rear direction during cleaning. Since the contact is made before 21, the impact when the front side of the floor brush 20 collides with the obstacle O can be buffered by the traveling wheels 23.
- the coil spring 53 as the urging means, it becomes easier to uniformly support the traveling wheel portion 52 with respect to the shaft portion 51, the deterioration of the coil spring 53 itself is small, and the buffer stroke is increased. And sufficient buffering properties can be obtained.
- the shaft 53 is bent when the traveling wheel 23 collides with the obstacle O or the floor surface F and the coil spring 53 is bent. It is possible to prevent the coil spring 53 from coming off due to the portion 51 and the traveling wheel portion 52 being displaced in the axial direction.
- the shaft portion 51 is formed with a plurality of shaft portion restricting portions 82 protruding outward, and the plurality of hole portions 91 into which the shaft portion restricting portions 82 can be inserted into the traveling wheel portion 52, and between these hole portions 91
- the traveling wheel portion restricting portion 86 for restricting the axial position of the shaft portion 51 and the traveling wheel portion 52 by being in contact with the shaft portion restricting portion 82 and forming the coil spring 53 with the hole portion 91 is formed.
- each shaft portion restricting portion 82 is inserted into each hole portion 91 and rotated in the circumferential direction so as to contact each shaft portion restricting portion 82 and each hole.
- the traveling wheel 23 can be easily assembled.
- the shaft 51 is prevented from coming off from the traveling wheel 52 when the coil spring 53 is attached when the traveling wheel 23 is assembled by the contact between the shaft restricting portion 82 and the traveling wheel restricting portion 86. Since it can hold
- a support mechanism for the shaft portion 51 including the coil spring 53 exposed in the axial direction of the traveling wheel 23 from the hole 91 and the traveling wheel portion 52 is provided. It can be seen from the outside of the traveling wheel 23 through the cover 55. For this reason, since the operator can visually observe the expansion and contraction of the coil spring 53 and the movement of the shaft portion 51 and the traveling wheel portion 52 when the traveling wheel 23 contacts the obstacle O and the floor surface F, the appearance is improved.
- a front cover 25 that can be rotated in the front-rear direction is disposed at the front portion of the case body 21, and the protrusions 25 a of the front cover 25 are positioned in front of the traveling wheels 23, so that the vicinity of the obstacle O When cleaning the front cover 25, the front cover 25 contacts the obstacle O before the traveling wheel 23 and rotates backward.
- the front cover 25 opens the lower portion of the front suction port 36, and the front dust is removed. Can be sucked in from the lower part of the front suction port 36.
- the cleaning member 38 of the rotating brush 32 projects relatively from the lower part of the front suction port 36 that is opened by the front cover 25 contacting the obstacle O and rotating backward, the rotating brush 32 is When rotated, the protruding cleaning member 38 can scrape off dust on the floor surface F in the vicinity of the obstacle O. Therefore, the floor surface F near the obstacle O can be efficiently cleaned.
- the traveling wheel portion 52 of the traveling wheel 23 is formed in a large diameter, it is possible to smoothly get over a step or the like, and good traveling performance can be obtained. Further, by making the ground contact portion 88 of the traveling wheel portion 52 soft, the obstacle O is not damaged at the time of collision with the obstacle O.
- the traveling wheel 23 is not used in the coil spring 53, and the entire circumference between the outer peripheral side of the shaft portion 51 and the inner peripheral side of the traveling wheel portion 52 is shown in FIG.
- the biasing means 105 formed in an annular shape by an elastic member (flexible member) such as rubber, a leaf spring, or an elastomer may be disposed. Even in this case, the same operational effects as those of the first embodiment can be obtained.
- the traveling wheels 23, 23 of the first embodiment are attached to the case body 21 with the central axis along the vertical direction.
- each traveling wheel 23 is arranged on both sides of the case body 21 with the cover 55 on the upper side, and from the side surface of the case body 21 to the grounding portion 88 side. The part protrudes. Further, each traveling wheel 23 is pivotally supported by the case body 21, and the front part of the grounding portion 88 is located in front of the front part of the case body 21 and is located behind the front end part of the front cover 25. ing. Further, each traveling wheel 23 is rotatably supported with a shaft 51 sandwiched between the front side of the lower case 26 and the front case 29 from above and below.
- each projection 25a of the front cover 25 comes into contact with the obstacle O.
- the front cover 25 rotates backward against the urging force of the front cover urging means, and then, as indicated by an imaginary line, the front portion of the traveling wheel 23 comes into contact with the obstacle O, and further the floor brush.
- the traveling wheel portion 52 of each traveling wheel 23 is fixed at the position of the obstacle O, so that the shaft portion 51 and the case body 21 resist the bias of the coil spring 53. While moving relative to the traveling wheel 52, the vehicle moves forward. For this reason, the impact at the time of collision is absorbed by the expansion and contraction of each coil spring 53.
- each traveling wheel 23 is attached to the case body 21 along the vertical direction, and a part of each traveling wheel 23 protrudes from the side surface of the case body 21 to clean the floor.
- the traveling wheel 23 comes into contact with the wall W before the case body 21, so that the impact when the side portion of the floor brush 20 collides with the wall W. Can be buffered by the running wheel 23.
- the traveling wheel 23 is in the case against the obstacle O. Since the contact is made before the body 21, the traveling wheel 23 can buffer the impact when the front side of the floor brush 20 collides with the obstacle O.
- each side wall W and the front obstacle O can be buffered by the traveling wheels 23, the floor brush 20 is moved forward along the side wall W to the obstacle O.
- the inner edge of the room is cleaned by moving it to the side along the obstacle O after being moved to the position, it is possible to obtain good buffering properties.
- each traveling wheel 23 is not easily rotated and resisted by contact with the wall portion W, so that traveling performance is not deteriorated.
- each traveling wheel 23 may be arranged with the cover 55 on the lower side.
- the traveling wheel portion 52 of each traveling wheel 23 has a traveling wheel portion main body 111 as an annular (cylindrical) rotating body main body, as shown in FIGS.
- a covering portion 112 formed integrally with the traveling wheel portion main body 111, and a raised portion 113 which is a ground contact portion as a friction reducing portion attached across the traveling wheel portion main body 111 and the covering portion 112 are provided.
- the traveling wheel portion main body 111 and the covering portion 112 are integrally formed by, for example, a double mold (two-color molding). Note that the arrangement of the traveling wheel portion 52 on both sides of the case body 21 includes a configuration in which the traveling wheel portion 52 is disposed in the vicinity of both sides of the case body 21.
- the traveling wheel portion main body 111 is, for example, the primary side of a double mold, and is formed with a diameter larger than the shaft portion 51 by a relatively hard member (synthetic resin) such as ABS. It has an axial direction along the direction. Further, as shown in FIG. 17B, the traveling wheel body 111 is fitted with the covering portion 112 at a position on the outer side of the outer peripheral surface 111a, that is, on the side far from the case body 21, which is one end side in the axial direction.
- a relatively hard member synthetic resin
- the traveling wheel body 111 is fitted with the covering portion 112 at a position on the outer side of the outer peripheral surface 111a, that is, on the side far from the case body 21, which is one end side in the axial direction.
- the outer concave portion 111b as an outer fitting portion to be joined is formed in a stepped shape, and inside the outer peripheral surface 111a, that is, at a position closer to the side closer to the case body 21, which is the other end side in the axial direction, An inner recess 111c as an inner fitting portion to be fitted is formed in a step shape. Further, on this traveling wheel part main body 111, a traveling wheel part restricting part 115 as a plurality of rotating body restricting parts corresponding to, for example, the coil spring 53 protrudes and is integrally formed from the inner peripheral edge part to the central axis direction. Yes.
- the outer recess 111b and the inner recess 111c are each formed continuously over the entire circumferential direction of the traveling wheel body 111. Further, the outer concave portion 111b and the inner concave portion 111c are at predetermined positions in the circumferential direction, for example, at positions between the traveling wheel portion regulating portions 115 and 115, via the communicating portion 111d shown in FIG. 17 (a) and FIG. Communicate with each other.
- the traveling wheel portion restricting portion 115 shown in FIGS. 17 to 21 is fitted into the fitting portion 83 of the shaft portion 51 so as to be brought into sliding contact with each shaft portion restricting portion 82, so that the shaft portion 51 and the traveling wheel portion 52 are in contact with each other. It is a part that regulates the position in the axial direction to each other, and is formed at the inner edge part on the outer side of the traveling wheel part main body 111, respectively.
- the traveling wheel portion restricting portions 115 are formed in a substantially trapezoidal shape in which the width dimension gradually decreases toward the central axis direction of the traveling wheel portion main body 111, and are disposed at substantially equal intervals in the circumferential direction. Has been.
- hole portions 121 (FIG. 18) to which the coil springs 53 are respectively attached are formed at substantially equal intervals in the circumferential direction.
- an attachment hole 122 for attaching the cover 55 is formed in an arc shape along the inner edge of the traveling wheel main body 111 at the base end portion of the traveling wheel restricting portion 115.
- the through-hole part 123 which can insert the control part main body 81 of the control part 65 of the axial part 51 and cannot insert the axial part main body 63 is formed.
- at least one of the traveling wheel portion restricting portions 115 is formed with a gate (not shown) on the outer surface 115a when the traveling wheel portion main body 111 is formed.
- each hole 121 The width of each hole 121 is larger than that of each shaft restricting portion 82 of the shaft 51. Also, in each hole 121, a holding portion 125, which is a wall portion for holding the other end side of the coil spring 53, protrudes from the inner edge portion of the traveling wheel portion main body 111 in the central axis direction and opens outward. It is formed in a U shape.
- the covering portion 112 is, for example, a secondary side of a double mold, and is formed of a member (synthetic resin) that is softer than the traveling wheel portion main body 111 such as an elastomer. Furthermore, the covering portion 112 includes an annular outer covering portion 127 that covers the outer peripheral side of the axially outer portion of the traveling wheel portion main body 111, and an annular inner surface that covers the outer peripheral side of the axially inner portion of the traveling wheel portion main body 111. The outer covering portion 127 and the inner covering portion 128 are separated from each other substantially in parallel, and a mounting recess 129 for attaching the raised portion 113 between the covering portions 127 and 128 is formed. Yes. Further, the covering portions 127 and 128 are connected to each other via the connecting portion 130 at each communicating portion 111d of the traveling wheel portion main body 111.
- the outer covering portion 127 covers the outer end surface 111e of the traveling wheel portion main body 111 and the outer portion of the outer peripheral surface 111a, and is fitted to the outer recessed portion 111b. Therefore, the outer covering portion 127 is on the outer side in the side surface direction of the entire floor brush 20 on the outer peripheral side of the traveling wheel body 111, that is, on the side far from the connection pipe 22 (FIG. 25) on the outer peripheral side of the traveling wheel body 111.
- the outer peripheral side of the traveling wheel part main body 111 of each traveling wheel 23, the side part opposite to the other traveling wheel 23, and the end surface 127a of the outer covering part 127 are covered with the outer part of the traveling wheel 23. It constitutes the whole. Further, as shown in FIG.
- the outer covering portion 127 has a plurality of locations on the outer end surface 111e on the outer side of the traveling wheel portion main body 111 in the circumferential direction, for example, positions outside both ends of the mounting holes 122 of the traveling wheel restricting portion 115.
- the outer fitting protrusion 127b which is an area-enlarged portion as a covering portion fitting portion (outer covering portion fitting portion) that fits into the outer fitting notch portion 111f as the outer notch portion formed in each, is integrally formed.
- the outer peripheral surface 127c of the outer covering portion 127 is inclined so as to gradually protrude in the radial direction toward the mounting recess 129 side.
- Each outer fitting protrusion 127b shown in FIG. 21 increases the thickness of the outer covering portion 127 (covering portion 112) and reduces the contact area between the outer covering portion 127 (covering portion 112) and the traveling wheel portion main body 111. It is a portion for increasing, is formed substantially flush with the end surface 127a of the outer covering portion 127, projects toward the central axis of the outer covering portion 127, and is substantially flush with the inner peripheral surface of the traveling wheel portion main body 111. It is one.
- the inner covering portion 128 shown in FIG. 17 covers the inner portion of the outer peripheral surface 111a of the traveling wheel portion main body 111. Further, the inner covering portion 128 has an end surface 128a substantially flush with the inner end surface 111g of the traveling wheel portion main body 111, and the end surface 111g is cut out at a plurality of positions, for example, positions corresponding to the holding portions 125.
- An inner fitting portion 128b as an inner covering portion fitting portion that fits into the inner fitting notch portion 111h as the formed inner notch portion is integrally formed.
- the outer peripheral surface 128c of the inner covering portion 128 is inclined so as to gradually protrude in the radial direction toward the mounting recess 129 side.
- Each inner fitting portion 128b is formed so that the base end side is substantially flush with the inner end surface 111g of the traveling wheel body main body 111 at the position of the inner fitting notch 111h, and the distal end side is formed along each holding portion 125.
- the tip side is a portion where a gate (not shown) when the covering portion 112 is formed is formed.
- the mounting recess 129 is a part exposing a part of the outer peripheral surface 111a of the traveling wheel part main body 111, that is, a region between the communication parts 111d and 111d.
- the connecting portion 130 is a portion formed when a member for forming the covering portion 112 is circulated from the gate formed in the inner fitting portion 128b of the inner covering portion 128 to the outer covering portion 127 side. That is, in the covering portion 112, the outer covering portion 127 and the inner covering portion 128 are integrally formed by injecting a member from the gate formed in the inner fitting portion 128b.
- the raised portion 113 integrally includes a plurality of raised portions 113a that are in contact with the floor surface F in a state where the floor brush 20 is placed on the floor surface F, and the raised portions 113a.
- a portion to be bonded as an attached portion to be attached that is, a belt-like sheet portion 113b which is a friction reducing portion main body is provided, and friction with respect to the floor surface F is set to be smaller than that of the covering portion 112.
- the sheet portion 113b is bonded and fixed to the mounting recess 129 via an adhesive (not shown).
- the sheet portion 113b is wound around the mounting recess 129 over the entire circumference so that both end portions are adjacent to each other.
- the raised portions 113 are disposed over the entire circumference of the traveling wheel 23. Further, both end portions of the seat portion 113b are positioned on the outer peripheral surface 111a of the traveling wheel portion main body 111, for example. Further, the raised portions 113a protrude in the radial direction with respect to the outer peripheral surfaces (outer peripheral surfaces 127c and 128c) of the covering portion 112, and the front end side is a traveling wheel 23 (traveling) when the case body 21 (floor brush 20) is advanced. It is curved so as to fall down along the rotation direction of the ring portion 52), that is, in the direction of arrow Y in FIG.
- the raised portion 113 is such that the front portion of the raised end 113a is positioned in front of the front portion of the case body 21 with the traveling wheel 23 being pivotally supported by the bearing portion 61 of the case body 21, and the front cover.
- the lower end of the raised portion 113a is located below the lower surface of the case body 21 while being located behind the front end portion of 25.
- the traveling wheel portion 52 is formed by injection molding the traveling wheel portion main body 111 and then injection molding the covering portion 112 with the traveling wheel portion main body 111 as the core side of the mold.
- the covering portion 112 injects a member using the inner fitting portion 128b of the inner covering portion 128 as a gate, so that this member is injected from the communicating portion 111d of the traveling wheel portion main body 111 to the outer covering portion 127 side.
- the inner covering portion 128 and the outer covering portion 127 are integrally formed through the connection portion 130.
- the covering portion 112 is configured such that the inner fitting portion 128b is fitted into the inner fitting cutout portion 111h and the outer fitting projection 127b is fitted into the outer fitting cutout portion 111f.
- the contact area with 111 is enlarged.
- the shaft portion 51 is inserted into the traveling wheel portion 52 from the other end side.
- the restricting portion main body 81 is inserted into the insertion hole portion 123 from the other end side in a state where the shaft portion restricting portions 82 are fitted in the respective hole portions 121.
- each shaft portion 51 is relatively positioned with respect to the traveling wheel portion 52 in a state where each shaft portion restricting portion 82 is positioned closer to one end side than each traveling wheel portion restricting portion 115.
- Each shaft portion regulating portion 82 is brought into sliding contact with the end surface of each traveling wheel portion regulating portion 115 by rotating it by a predetermined angle in the circumferential direction (for example, clockwise direction), in this embodiment, about 90 °, and FIG.
- each traveling wheel portion restricting portion 115 is fitted into the fitting portion 83.
- each locking projection 71 of the shaft 51 is in a state of facing each holding portion 125 of the traveling wheel 52, so that the center position of the shaft 51 is slightly different from the center position of the traveling wheel 52.
- the other end of the coil spring 53 is The single holding portion 125 is fitted and held.
- each locking projection 71 is inserted into one end of each of the other three coil springs 53 and one end of each coil spring 53 is held in each recess 76, as shown in FIG.
- the other end portion of each coil spring 53 is fitted and held in each holding portion 125.
- each coil spring 53 is fitted in each hole 121 and exposed in the axial direction of the traveling wheel 23.
- the sheet portion 113b of the raised portion 113 is bonded and fixed to the mounting recess 129.
- the seat portion 113b is fixed to the outer peripheral surface 111a of the traveling wheel portion main body 111 whose one end portion is exposed to the mounting recess 129, and the other end at a position that makes a round of the outer periphery of the traveling wheel portion main body 111 along the mounting recess 129.
- the part is fixed to the outer peripheral surface 111a of the traveling wheel part main body 111 adjacent to one end part.
- the raising portion 113 may be attached after the traveling wheel portion 52 is formed.
- each shaft portion 51 is fitted to each bearing portion 61 on the side portion of the separately assembled case body 21, thereby screw bosses.
- Portion 69 is inserted into insertion hole 73, retaining member 54 is fitted into shaft body 63, screw 97 is screwed to screw boss portion 69, and each shaft portion 51 is attached to bearing portion 61 of case body 21. It is pivotally supported.
- each claw portion 101 of the cover 55 is inserted into each mounting hole 122 of the traveling wheel portion 52 from one end side, and the cover 55 is rotated by a predetermined angle in the circumferential direction, so that each claw portion 101 is fitted to each mounting hole.
- the cover 55 is fixed to the traveling wheel portion 52 by being locked by the locking projections 133 formed on one side of the circumferential direction 122.
- the floor brush 20 is configured so that the connection pipe 22 is rotatable with respect to the case body 21, so that the weight on the case body 21 side in a state where the operator is holding the grip portion 17. Due to the balance, for example, the weight of the motor or the like, the case body 21 rotates relative to the connection pipe 22 connected to the extension pipe 19. Accordingly, when the floor brush 20 is to be placed on the floor surface F as shown in FIG. 23 along with this rotation, either one of the both sides in the left-right width direction of the case body 21 is in relation to the other.
- the outer covering portion 127 of the covering portion 112 that is inclined to the lower side and is located on the outer side of the traveling wheel 23 located on either one of the left and right width direction sides of the case body 21 first comes into contact with the floor surface F, The other side of the both sides in the left-right width direction of the case body 21 contacts the floor surface F. Therefore, when the floor brush 20 is placed on the floor surface F, the covering portion 112 (outer covering portion 127) formed of a softer member than the traveling wheel portion main body 111 is buffered against the floor surface F. Secure.
- the operator operates the desired setting button 18 of the gripping portion 17 to cause the electric blower 13 to operate in the desired operation mode, and alternately causes the floor brush 20 to travel back and forth via the extension pipe 19. .
- the floor brush 20 can obtain good traveling performance when the raised portions 113a of the raised portions 113 of the respective traveling wheels 23 come into contact with the floor surface F and rotate during traveling. .
- the covering portion 112 formed of a softer member than the traveling wheel part main body 111.
- the covering portion 112 formed of a softer member than the traveling wheel part main body 111.
- the extension pipe is set depending on the weight balance on the case body 21 side, for example, the weight of the motor or the like.
- the case body 21 rotates relatively with respect to the connection pipe 22 (FIG. 22) connected to 19, and either one of the both sides in the left-right width direction of the case body 21 is inclined downward with respect to the other. Therefore, when the floor brush 20 is placed on the floor surface F, either one of both sides of the case body 21 comes into contact with the floor surface F before the other.
- the case body 21 is formed of a member that is located on the outer side of the traveling wheel 23 located on either one of the both sides in the left-right width direction and is softer than the traveling wheel portion main body 111. Since the outer covering portion 127 of the covering portion 112 is first brought into contact with the floor surface F, it is possible to secure a buffer property against the floor surface F. In addition, during running, the raised portions 113a of the raised portions 113, not the covering portion 112, are in contact with the floor surface F, so that the floor brush 20 is more easily slid compared to the case where the covering portion 112 is in contact with the floor surface F. For example, it becomes easier to bring the side portion of the floor brush 20 closer to the side or the like.
- the end surface of the sheet portion 113b of the raised portion 113 is positioned in the mounting recess 129. Therefore, the raised portions 113 are not easily peeled off from the end surface of the seat portion 113b with respect to the traveling wheel portion main body 111 and the covering portion 112.
- each traveling wheel 23 is located on both sides of the case body 21, the raised portions 113 are narrower, although it is particularly noticeable when dust on the floor surface F adheres to the raised portions 113a of the raised portions 113.
- the dirt is less conspicuous compared to the case where the raised portions 113 are formed over the entire width direction of the traveling wheel 23.
- the sheet portion 113b of the raised portion 113 to the outer peripheral surface 111a of the traveling wheel portion main body 111 exposed in the mounting recess 129, for example, when adhering to the covering portion 112 that is softer than the traveling wheel portion main body 111 In comparison, the adhesiveness is good and it can be firmly fixed, and the raised portions 113 are more difficult to peel off.
- both end portions of the seat portion 113b to the position of the traveling wheel portion main body 111, these end portions can be more firmly fixed to the traveling wheel portion 52, and peeling of the raised portions 113 can be more effectively suppressed. it can.
- each traveling wheel 23 (each traveling wheel part 52) is brought down along the rotation direction of each traveling wheel 23 when the case body 21 (floor brush 20) moves forward with the tip side of the raising part 113a of the raising part 113.
- the traveling wheel portion 52 rotates rearward (the case body 21 of the floor brush 20 moves rearward)
- the raised hair 113a is not pressed against the floor surface F but is caught on the floor surface F, so that it is moderate.
- each running wheel 23 (each running wheel portion 52) is smooth by giving an appropriate resistance between each running wheel 23 (each running wheel portion 52) and the floor surface F with respect to any rotation in the front and rear directions. It is possible to obtain a good running performance.
- the covering portion 112 has an outer fitting protrusion 127b that is located on the outer side of the traveling wheel portion main body 111 and engages with the traveling wheel portion main body 111 in the circumferential direction toward the central axis direction of the traveling wheel portion main body 111.
- the thickness of the covering portion 112 (outer covering portion 127) can be increased by these outer fitting protrusions 127b, and the cushioning property against the floor surface F at the covering portion 112 can be improved.
- the outer covering portion 127 is a portion where an impact is easily applied by contacting the floor surface F when the floor brush 20 is placed on the floor surface F, the outer covering portion 127 is easily peeled off from the traveling wheel portion main body 111 due to the impact. There is a risk. Accordingly, by forming the outer fitting protrusions 127b on the outer covering part 127 of the covering part 112, the contact area between the traveling wheel part body 111 and the covering part 112 is increased by these outer fitting protrusions 127b.
- the ring body main body 111 and the covering portion 112 are hard to be peeled off from each other and can be firmly integrated. Furthermore, these outer fitting protrusions 127b are formed so as to be substantially flush with the inner peripheral surface of the traveling wheel portion main body 111, so that they are not conspicuous in design and do not deteriorate the appearance.
- a shaft portion 51 rotatably supported by the case body 21 and a coil spring 53 that biases the shaft portion 51 and the traveling wheel portion 52 relatively between the shaft portion 51 and the traveling wheel portion 52 are provided.
- the elasticity of these coil springs 53 can further improve the buffering property with respect to the floor surface F, further suppress the noise when the floor brush 20 is placed on the floor surface F, and the traveling wheel portion 52
- the traveling wheel portion 52 moves with respect to the shaft portion 51 and the case body 21 while being urged by the coil spring 53 and absorbs the impact.
- the traveling wheel portion 52 becomes softer or thicker.
- the buffering property can be further improved without degrading the running performance by increasing or the like.
- the running wheel 52 is made of an elastic member or the like to increase its thickness to obtain sufficient buffering properties
- the weight of the floor brush 20 is reduced. While the traveling wheel portion 52 is bent and the ground contact area (grip force) with respect to the floor surface F is increased, there is a concern that traveling performance may be reduced.
- the thickness of the traveling wheel portion 52 is reduced. Since a large cushioning stroke can be obtained by the coil spring 53 without increasing it, the traveling wheel portion 52 does not bend during traveling and the gripping force does not increase, and better traveling performance can be obtained.
- the floor brush 20 is provided with a connecting tube 22 that can be rotated in the vertical direction, the floor brush 20 is placed on the floor surface F in a state where the operator grips the grip portion 17 of the hand operation portion 16.
- the front side of the case body 21 is rotated downward by the dead weight of the case body 21 with respect to the connection pipe 22 fixed to the hand operation section 16 side via the extension pipe 19 (solid line in FIG. 24).
- the center position of the traveling wheel 23, that is, the position of the shaft portion 51 of the traveling wheel 23 that is pivotally supported by the bearing portion 61 of the case body 21 is positioned in front of the center position of the rotation shaft of the connecting pipe 22.
- the raised portions 113 of the traveling wheels 23 are grounded to the floor surface F before the case body 21.
- the impact at the time of mounting on the floor surface F can be buffered by the raised portions 113 of the traveling wheels 23.
- the traveling wheel 23 does not use the coil spring 53, and the entire circumference between the outer peripheral side of the shaft portion 51 and the inner peripheral side of the traveling wheel portion 52 is shown in FIG.
- the biasing means 135 formed in an annular shape by an elastic member (flexible member) such as rubber, a leaf spring, or an elastomer may be disposed. Even in this case, the same operational effects as those of the first embodiment can be obtained.
- traveling wheel portion 52 may be pivotally supported with respect to the case body 21 so as to be directly rotatable.
- the covering portion 112 may be configured to cover at least the outer portion on the outer peripheral side of the traveling wheel portion main body 111. That is, as the covering portion 112, for example, a configuration including only the outer covering portion 127 may be used.
- the friction reducing portion as long as the friction with respect to the floor surface F is smaller than that of the covering portion 112, not only the raised portion 113 but also a member such as a cloth may be used.
- the details of the vacuum cleaner 11 are not limited to the above configuration.
- the canister type vacuum cleaner 11 but also a floor brush at the bottom of the vertically long vacuum cleaner body 12
- Any vacuum cleaner, such as an upright vacuum cleaner with 20 connected, can be used.
- Vacuum Cleaner 12 Vacuum Cleaner Body 13 Electric Blower 20
- Floor Brush as Suction Port 21 Case Body 22 Connection Pipe 22a Rotating Shaft 23 Traveling Wheel as Rotating Unit 25 Front Cover 32 Rotating Brush as Rotating Cleaning Body 51
- Shaft Part 52 Traveling wheel part as rotating body part 53
- Cover 82 Shaft part restricting part 86
- Energizing means 111 Rotating body Traveling wheel body main body 112 Covering portion 113 Brushed portion 113 as a friction reducing portion 113a Brushed 127b Outer fitting protrusion as a covering portion fitting portion 129 Mounting recess
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Abstract
Description
12 掃除機本体
13 電動送風機
20 吸込口体としての床ブラシ
21 ケース体
22 接続管
22a 回動軸
23 回転体ユニットとしての走行輪
25 前カバー
32 回転清掃体としての回転ブラシ
51 軸部
52 回転体部としての走行輪部
53 付勢手段としてのコイルばね
55 カバー
82 軸部規制部
86 回転体部規制部としての走行輪部規制部
91 孔部
105,135 付勢手段
111 回転体部本体としての走行輪部本体
112 被覆部
113 摩擦低減部としての起毛部
113a 起毛
127b 被覆部嵌合部としての外側嵌合突部
129 取付凹部 11
Claims (20)
- ケース体と、
このケース体に取り付けられた回転体ユニットとを具備し、
前記回転体ユニットは、
前記ケース体に回転可能に軸支された軸部と、
少なくとも一部がこの軸部の周囲に位置する回転体部と、
前記軸部と前記回転体部との間に介在され、この回転体部を前記軸部に対して付勢する付勢手段とを備えている
ことを特徴とした吸込口体。 The case body,
A rotating body unit attached to the case body,
The rotating body unit is
A shaft portion rotatably supported by the case body;
A rotating body portion at least partially located around the shaft portion;
A suction port body comprising an urging means interposed between the shaft portion and the rotating body portion and biasing the rotating body portion against the shaft portion. - 付勢手段は、回転体ユニットの周方向に複数が略等間隔に配置されている
ことを特徴とした請求項1記載の吸込口体。 The suction port body according to claim 1, wherein a plurality of biasing means are arranged at substantially equal intervals in the circumferential direction of the rotating body unit. - ケース体に少なくとも上下方向に回動可能に軸支された接続管を具備し、
回転体ユニットは、回転体部が走行面に接地可能であり、少なくとも中心位置が前記接続管の回動軸の中心位置よりも前側に位置している
ことを特徴とした請求項1または2記載の吸込口体。 The case body includes a connecting pipe that is pivotally supported so as to be rotatable at least in the vertical direction,
The rotating body unit is characterized in that the rotating body portion can be grounded to the running surface, and at least the center position is located in front of the center position of the rotating shaft of the connection pipe. Suction port body. - 回転体ユニットは、ケース体の両側部にそれぞれ配置されている
ことを特徴とした請求項3記載の吸込口体。 The suction port body according to claim 3, wherein the rotating body unit is disposed on each side of the case body. - ケース体に被掃除面に対向して回転可能に取り付けられた回転清掃体を具備し、
回転体ユニットは、前記回転清掃体と略同軸に位置している
ことを特徴とした請求項1ないし4いずれか一記載の吸込口体。 A rotating cleaning body is rotatably attached to the case body so as to face the surface to be cleaned.
The suction port body according to any one of claims 1 to 4, wherein the rotating body unit is positioned substantially coaxially with the rotating cleaning body. - 回転体ユニットは、少なくとも一部がケース体よりも前側に突出している
ことを特徴とした請求項1ないし5いずれか一記載の吸込口体。 The suction port body according to any one of claims 1 to 5, wherein at least a part of the rotating body unit projects forward of the case body. - 回転体ユニットは、中心軸が上下方向に沿った状態でケース体に取り付けられてこのケース体の側面から一部が突出している
ことを特徴とした請求項1または2記載の吸込口体。 The suction port body according to claim 1 or 2, wherein the rotating body unit is attached to the case body with a central axis along the vertical direction, and a part of the rotating body unit protrudes from a side surface of the case body. - 回転体ユニットは、少なくとも一部がケース体よりも前側に突出している
ことを特徴とした請求項7記載の吸込口体。 The suction port body according to claim 7, wherein at least a part of the rotating body unit projects forward of the case body. - 付勢手段は、コイルばねである
ことを特徴とした請求項1ないし8いずれか一記載の吸込口体。 The suction port body according to any one of claims 1 to 8, wherein the urging means is a coil spring. - 軸部と回転体部とは、軸方向の位置が互いに規制されている
ことを特徴とした請求項1ないし9いずれか一記載の吸込口体。 The suction port body according to any one of claims 1 to 9, wherein the shaft portion and the rotating body portion are mutually restricted in axial position. - 軸部は、複数の軸部規制部を有し、
回転体部は、
前記各軸部規制部を挿通可能な複数の孔部と、
これら孔部間に位置し、前記軸部規制部と当接することで前記軸部と前記回転体部との軸方向の位置を規制する回転体部規制部とを有し、
付勢手段は、前記孔部のそれぞれに配置されている
ことを特徴とした請求項10記載の吸込口体。 The shaft portion has a plurality of shaft portion restricting portions,
The rotating body is
A plurality of holes through which the shaft restricting portions can be inserted;
It has a rotating body part restricting part that is positioned between these hole parts and restricts the axial position of the shaft part and the rotating body part by contacting the shaft part restricting part,
The suction port body according to claim 10, wherein the biasing means is disposed in each of the holes. - 回転体ユニットは、付勢手段を覆う透明なカバーを備えた
ことを特徴とした請求項1ないし11いずれか一記載の吸込口体。 The suction port body according to any one of claims 1 to 11, wherein the rotating body unit includes a transparent cover that covers the biasing means. - ケース体の前部に前後方向に回動可能に配置され、少なくとも一部が前記回転体ユニットよりも前側に位置する前カバーを具備した
ことを特徴とした請求項1ないし12いずれか一記載の吸込口体。 The front cover of the case body is disposed so as to be rotatable in the front-rear direction, and at least a part thereof includes a front cover positioned on the front side of the rotating body unit. Suction port body. - ケース体は、幅方向に長手状に形成され、
このケース体の幅方向の両側間に少なくとも周方向に回転可能に接続された筒状の接続管を具備し、
回転体ユニットは、前記ケース体の両側に回転可能に配置され、
回転体部は、
前記ケース体の幅方向に沿って軸方向を有する円環状の回転体部本体と、
この回転体部本体よりも軟質の部材により形成されこの回転体部本体の少なくとも軸方向外側部の外周側を覆う被覆部と、
前記回転体部本体の外周側に位置し、先端側が前記被覆部よりも外周側に突出し前記被覆部よりも被掃除面に対する摩擦が小さい摩擦低減部とを有している
ことを特徴とした請求項1記載の吸込口体。 The case body is formed in a longitudinal shape in the width direction,
A cylindrical connecting pipe connected rotatably at least in the circumferential direction between both sides in the width direction of the case body,
The rotating body unit is rotatably arranged on both sides of the case body,
The rotating body is
An annular rotor body having an axial direction along the width direction of the case body;
A covering portion that is formed of a softer member than the rotating body main body and covers at least the outer peripheral side of the outer side in the axial direction of the rotating body main body;
It has a friction reduction part which is located in the perimeter side of the above-mentioned rotating body part, and a tip side protrudes on the perimeter side rather than the above-mentioned covering part, and friction with respect to a cleaning surface is smaller than the above-mentioned covering part. Item 1. The inlet according to item 1. - 被覆部は、回転体部本体の外側部に位置しこの回転体部本体の中心軸側に突出してこの回転体部本体と嵌合する被覆部嵌合部を周方向に複数有している
ことを特徴とした請求項14記載の吸込口体。 The covering portion has a plurality of covering portion fitting portions in the circumferential direction that are positioned on the outer side of the rotating body portion main body and project toward the central axis side of the rotating body portion main body to be fitted to the rotating body portion main body. The suction inlet body of Claim 14 characterized by these. - 軸部は、少なくとも一部が回転体部の内周側に位置している
ことを特徴とした請求項14または15記載の吸込口体。 The suction port body according to claim 14 or 15, wherein at least a part of the shaft portion is located on an inner peripheral side of the rotating body portion. - 被覆部は、摩擦低減部の少なくとも一部が取り付けられる取付凹部を外周面側に備えている
ことを特徴とした請求項14ないし16いずれか一記載の吸込口体。 The suction port body according to any one of claims 14 to 16, wherein the covering portion includes an attachment concave portion on the outer peripheral surface side to which at least a part of the friction reduction portion is attached. - 回転体部本体の一部は、取付凹部に露出し、
摩擦低減部は、前記取付凹部に露出した前記回転体部本体に少なくとも一部が接着されている
ことを特徴とした請求項17記載の吸込口体。 A part of the rotating body is exposed in the mounting recess,
The suction port body according to claim 17, wherein at least a part of the friction reducing portion is bonded to the rotating body main body exposed in the mounting recess. - 摩擦低減部は、ケース体の前進時の回転体部の回転方向に沿って先端側が倒れた起毛を有している
ことを特徴とした請求項14ないし18いずれか一記載の吸込口体。 The suction port body according to any one of claims 14 to 18, wherein the friction reduction portion has a raised portion whose tip side falls down along a rotation direction of the rotating body portion when the case body moves forward. - 電動送風機を収容した掃除機本体と、
前記電動送風機の吸込側に連通接続される請求項1ないし19いずれか一記載の吸込口体と
を具備したことを特徴とした電気掃除機。 A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: the suction port body according to any one of claims 1 to 19, which is connected to the suction side of the electric blower.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011148352/12A RU2498762C2 (en) | 2009-05-29 | 2010-04-19 | Body with suction inlet device and electric vacuum cleaner |
EP10780382.7A EP2436292B1 (en) | 2009-05-29 | 2010-04-19 | Suction opening body and electric cleaner |
KR1020117026519A KR101368516B1 (en) | 2009-05-29 | 2010-04-19 | Suction opening body and electric cleaner |
KR1020137016419A KR101322580B1 (en) | 2009-05-29 | 2010-04-19 | Suction opening body and electric cleaner |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009131450A JP5380160B2 (en) | 2009-05-29 | 2009-05-29 | Suction port and vacuum cleaner |
JP2009-131450 | 2009-05-29 | ||
JP2009193565A JP5537090B2 (en) | 2009-08-24 | 2009-08-24 | Suction port and vacuum cleaner |
JP2009-193565 | 2009-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010137425A1 true WO2010137425A1 (en) | 2010-12-02 |
Family
ID=43222542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/056914 WO2010137425A1 (en) | 2009-05-29 | 2010-04-19 | Suction opening body and electric cleaner |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2436292B1 (en) |
KR (2) | KR101322580B1 (en) |
RU (1) | RU2498762C2 (en) |
WO (1) | WO2010137425A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN212949960U (en) * | 2017-08-31 | 2021-04-13 | 尚科宁家运营有限公司 | Vacuum cleaner and surface cleaning head and wheel for a vacuum cleaner |
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JPH04122230A (en) * | 1990-09-10 | 1992-04-22 | Matsushita Electric Ind Co Ltd | Floor nozzle of vacuum cleaner |
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JPH10243897A (en) * | 1997-03-05 | 1998-09-14 | Sharp Corp | Suction port body of electric vacuum cleaner |
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KR910007689Y1 (en) * | 1989-04-11 | 1991-09-30 | 이응순 | Shock-absorber of wheel for car |
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SE503784C2 (en) * | 1994-12-12 | 1996-09-02 | Electrolux Ab | Wheel for a vacuum cleaner nozzle or for a vacuum cleaner |
KR19980073777A (en) * | 1997-03-19 | 1998-11-05 | 최진호 | Vacuum cleaner |
JPH11206633A (en) * | 1998-01-26 | 1999-08-03 | Kowa:Kk | Wheel for floor nozzle of vacuum cleaner |
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DE102005037952A1 (en) * | 2005-08-11 | 2007-02-15 | Vorwerk & Co. Interholding Gmbh | On the chassis of a device attached plastic impeller |
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2010
- 2010-04-19 WO PCT/JP2010/056914 patent/WO2010137425A1/en active Application Filing
- 2010-04-19 KR KR1020137016419A patent/KR101322580B1/en not_active IP Right Cessation
- 2010-04-19 RU RU2011148352/12A patent/RU2498762C2/en not_active IP Right Cessation
- 2010-04-19 KR KR1020117026519A patent/KR101368516B1/en not_active IP Right Cessation
- 2010-04-19 EP EP10780382.7A patent/EP2436292B1/en not_active Not-in-force
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JPH04122230A (en) * | 1990-09-10 | 1992-04-22 | Matsushita Electric Ind Co Ltd | Floor nozzle of vacuum cleaner |
JPH0493051U (en) * | 1990-12-28 | 1992-08-13 | ||
JPH05245072A (en) * | 1992-03-09 | 1993-09-24 | Matsushita Electric Ind Co Ltd | Floor nozzle for vacuum cleaner |
JPH10243897A (en) * | 1997-03-05 | 1998-09-14 | Sharp Corp | Suction port body of electric vacuum cleaner |
JPH11178758A (en) | 1997-12-19 | 1999-07-06 | Sanyo Electric Co Ltd | Suction tool for floor |
JP2003061873A (en) * | 2001-08-28 | 2003-03-04 | Akihiro Higashinaka | Vacuum cleaner nozzle with freely rotating body on side surface of vacuum cleaner nozzle body |
JP2003033301A (en) * | 2002-07-22 | 2003-02-04 | Eiichi Omori | Vacuum cleaner nozzle for floor |
JP2008253853A (en) * | 2008-07-31 | 2008-10-23 | Sanyo Electric Co Ltd | Suction tool for floor |
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Title |
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Also Published As
Publication number | Publication date |
---|---|
EP2436292A1 (en) | 2012-04-04 |
EP2436292A4 (en) | 2012-11-07 |
EP2436292B1 (en) | 2013-12-18 |
KR101322580B1 (en) | 2013-10-28 |
RU2498762C2 (en) | 2013-11-20 |
KR101368516B1 (en) | 2014-02-27 |
RU2011148352A (en) | 2013-07-10 |
KR20130083479A (en) | 2013-07-22 |
KR20120024596A (en) | 2012-03-14 |
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