JP6322357B2 - Suction aids and cleaners - Google Patents

Description

  The present invention relates to a suction auxiliary tool connected to the tip of a cleaner and a cleaner to which the suction auxiliary tool is connected.

  As disclosed in Patent Document 1, the suction assisting tool is connected to the tip of the cleaner body via a nozzle and used for flooring. Such suction assisting tools include what is called a power nozzle that includes a motor electrically connected to the cleaner body and a brush that is rotated by the motor. Thus, it can be rotated forward and backward and left and right.

JP 2010-220978 A

  However, in the conventional power nozzle, since the shaft rotating in the front-rear direction and the shaft rotating in the left-right direction are installed separately from each other, the size in the front-rear direction is increased, which hinders downsizing. It was.

  Then, this invention aims at providing the suction auxiliary tool and cleaner which have a compact structure.

In order to achieve the above object, an invention according to claim 1 includes a pipe, a wide housing connected to the pipe and formed wide in the left-right direction, and housing a motor and a brush that rotates by driving of the motor. The wide housing includes a brush in the front and a motor in the left and right in the rear, and the rear plate portion of the wide housing extends to the left and right along the rear outer surface of the motor. The pipe extends from the rear to the cup of the ring body with the support shafts protruding from the left and right outer surfaces sandwiching the axis, and is widened with respect to the cup by a retaining member provided at the tip of the pipe. An engagement portion is formed on the outer periphery of the pipe and is engaged with the rear end of the cup in the state of being prevented from being detached. The pipe is attached to the cup by the retaining member and the engagement portion. On the other hand, the wide housing is provided with a support bearing portion that engages with the support shaft in front of the rear outer surface of the motor and holds the cup rotatably in the front-rear direction around the support shaft. The cup including the supporting shaft and the engaging portion are accommodated in the wide housing, the supporting shaft is disposed outside the engaging portion, and the lead wire connected to the motor is routed through the supporting shaft. It is characterized by.
According to a second aspect of the present invention, in the configuration of the first aspect, the motor has a cylindrical shape that is accommodated on the side of the pipe and extends in the left-right direction, a terminal on the pipe side of the motor, and an output portion on the opposite side. Each of the brushes is provided with an input unit that is rotated and transmitted from the output unit.
According to a third aspect of the present invention, in the configuration of the first or second aspect, the pipe is provided with a terminal cover that covers the terminal to which the lead wire is connected, and the engaging portion is formed on the terminal cover, By engaging the terminal cover by engaging the locking pieces formed on both sides of the front end of the terminal cover on the pipe side, the engaging part on the pipe side and the engaging part on the terminal cover side are connected in a continuous manner. It is characterized by engaging with the rear end.
According to a fourth aspect of the present invention, in any one of the first to third aspects, a detent means for restricting the rotation range of the pipe relative to the cup is provided.
The invention according to claim 5 is characterized in that, in the structure according to any one of claims 1 to 4, the total weight is 300 g or less.
In order to achieve the above-mentioned object, the invention described in claim 6 includes a pipe, a cup into which the pipe is rotatably inserted and connected around the axis, a cup connected to the cup, and a wide width in the left-right direction. A suction assisting tool comprising a wide housing that houses a brush that rotates by driving of the motor and is rotatable in the front-rear direction with respect to the cup. motor is housed in the lateral direction, respectively, the pipe is connected to the cup axially within wide housing via a first shaft portion formed at the front end, the cup includes a second extending in the lateral direction The retaining portion for the cup of the pipe, which is connected to the wide housing through the shaft portion, is disposed in the wide housing on the front side of the second shaft portion, and the wide housing includes the second shaft. Is provided so as to be rotatable in front of the rear outer surface of the motor, and the cup including the second shaft portion is accommodated in the wide housing, and the axial extension of the second shaft portion is And a lead wire extending from the motor is routed through the second shaft portion.
In order to achieve the above object, a seventh aspect of the present invention is directed to a pipe, a wide housing connected to the pipe and formed wide in the left-right direction, and housing a motor and a brush that rotates by driving the motor. The wide housing includes a brush in the front and a motor in the left and right in the rear, and the rear plate portion of the wide housing extends to the left and right along the rear outer surface of the motor. In the wide housing, a cup into which the pipe is rotatably inserted and connected around the axis is connected via a shaft portion extending in the left-right direction . rotatably in two axes between the axis and the shaft portion of the left and right cups is connected to wide housing, the wide Haujin shaft portion of the cup is positioned in front of the side outer surface after the motor It housed within a terminal and a motor provided in the pipe is characterized in that it is electrically connected to a lead wire.
In order to achieve the above object, the invention described in claim 8 is a cleaner, and is characterized by connecting the suction assisting tool described in any one of claims 1 to 7.

According to the present invention, downsizing in the front-rear direction can be achieved.
In particular, according to the second aspect of the invention, in addition to the effect of the first aspect, the size of the motor in the front-rear direction can be made more compact.
According to invention of Claim 3, in addition to the effect of Claim 1 or 2, it becomes possible to form an engaging part simply using a terminal cover. In addition, the lead wire can be easily routed between the terminal cover and the cup.
According to the fourth aspect of the present invention, in addition to the effect of any one of the first to third aspects, the lead wire is prevented from being pulled or disconnected due to the pipe being rotated too much.
According to the fifth aspect of the invention, in addition to the effect of any one of the first to fourth aspects, the weight is reduced and it is easy to use.

It is a top view of a cleaner. It is the sectional view on the AA line of FIG. It is a perspective view of a cleaner. It is a perspective view of a power brush. It is a top view of a power brush. It is a side view of a power brush. (A) is a rear view of a power brush, (B) is a bottom view of a power brush. It is a disassembled perspective view of a power brush. It is a disassembled side view of a power brush. It is a disassembled longitudinal cross-sectional view of a power brush. It is a top view of the power brush which removed the upper housing. FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of the cleaner, FIG. 2 is a sectional view taken along the line AA, and FIG. 3 is a perspective view of the cleaner. The cleaner 1 includes a cleaner body 2, a nozzle 3 connected to the front end of the cleaner body 2, an extension nozzle 4 connected to the front end of the nozzle 3, and a suction assisting tool connected to the front end of the extension nozzle 4. It consists of a power nozzle 5.

  First, the cleaner body 2 accommodates a motor 7 having a fan 8 in a housing 6 divided into left and right parts, and is provided at the front end of the housing 6 by the rotation of the fan 8 as the motor 7 is driven. The outside air can be sucked from the suction port 9 to which is inserted and connected. A filter unit 10 is interposed between the fan 8 and the suction port 9 so that the dust sucked together with the outside air can be captured by the filter unit 10. A battery pack 11 serving as a power source is provided at the rear lower end of the housing 6, and an operation button 13 for turning the motor 7 ON / OFF is provided on the handle 12 formed above the battery pack 11. Reference numeral 14 denotes a substrate provided in the cleaner body 2.

  The power nozzle 5 incorporates a motor 53 described later, and a lead wire 15 is routed between the substrate 14 and the motor 53 as shown in FIG. Here, the nozzle 3 and the extension nozzle 4 are electrically connected by inserting terminal pins 16 a and 16 a provided on the extension nozzle 4 side into the nozzle 3. Similarly, the extension nozzle 4 and the power nozzle 5 are electrically connected by inserting terminal pins 16 b and 16 b provided on the power nozzle 5 side into the extension nozzle 4.

As shown in FIGS. 4 to 7, the power nozzle 5 has a wide housing 20 formed wide in the left-right direction, and a front and rear pipes 21 each having a first bent portion 22 and a second bent portion 23. It is a T-shape in plan view that is connected so as to be rotatable in the direction and the left-right direction, and the total weight is 300 g or less.
First, as shown in FIGS. 8 to 10, the wide housing 20 is divided into an upper housing 24 and a lower housing 25, and four bosses 26, 26,. The four receiving seats 61, 61... Formed in the housing 25 are integrated by screwing from below with screws (not shown). Four or more bosses 26 and receiving seats 61 may be provided. As shown in FIG. 11, in the wide housing 20, a connecting portion 27 of the pipe 21 is formed at the center of the rear side, a motor accommodating portion 28 is formed at the side, and a brush accommodating portion 29 is formed at the front. Yes. In addition, a horizontally long suction port 30 is formed in the lower surface of the brush housing portion 29 in the lower housing 25, and a pair of rollers 31, 31 are provided at portions of the rear end of the lower housing 25 that contact both sides of the pipe 21. Yes.

  The connecting portion 27 of the pipe 21 is formed by a pair of upper and lower receiving seats 32 and 32 that are formed in the upper housing 24 and the lower housing 25 and have a spherical inner surface. The cup 33 is held on the top. The cup 33 is a ring body having a spherical outer surface, and support shafts 34, 34 project in a point-symmetric manner on the left and right outer surfaces, and are semicircular cutouts formed at the ends of the receiving seat 32. 35 and 35 are held from above and below. Therefore, the cup 33 can rotate around the support shafts 34 in the connecting portion 27. One support shaft 34 is formed with a through hole 36 through which the lead wire 15 is inserted.

As shown in FIG. 12, the pipe 21 is connected to the cup 33 by allowing the first bent portion 22 of the pipe 21 to penetrate from the rear to the cup 33 and covering the tip with a retaining ring 37 as a retaining member. Has been. A trumpet-shaped widened portion 38 is formed at the tip of the first bent portion 22, but the inner diameter of the cup 33 is larger than that of the widened portion 38. In addition, a through hole 62 is formed on the side surface of the first bent portion 22 at a position facing the through hole 35 of the support shaft 34 of the cup 33.
The retaining ring 37 is a ring body having an inner diameter substantially equal to the outer shape of the first bent portion 22 on the inner side of the expanded portion 38, and the upper end is formed with a slit 39, thereby exceeding the expanded portion 38. Exterior to the inner position is possible. An axial stop plate 40 into which the slit 39 is fitted is erected on the upper surface of the tip of the first bent portion 22 to restrict the rotation of the stop ring 37 relative to the pipe 21. 37a is a packing provided on the outer periphery of the front surface of the retaining ring 37. The packing 37a increases the airtightness between the upper and lower housings 24 and 25 and improves the suction force.

  In addition, a protrusion 41 is provided on the rear surface of the retaining ring 37 at a position substantially symmetrical with the slit 39. The protrusion 41 is fitted in a semicircular cutout portion 42 formed in the lower half of the front end of the cup 33 to restrict the rotation range of the retaining ring 37 relative to the cup 33. Therefore, the pipe 21 that rotates integrally with the retaining ring 37 is also regulated within the same rotation range.

  On the other hand, a ring-shaped rib 43 is provided in the circumferential direction on the outer periphery of the second bent portion 23 of the pipe 21, and a pair of terminal pins 16 b and 16 b are supported on the ring-shaped rib 43 in parallel with the axial direction. ing. In addition, longitudinal ribs 44, 44 in the axial direction continuous with the ring-shaped rib 43 project from the left and right side surfaces of the second bent portion 23 to the side surfaces of the first bent portion 22, and below the outer periphery of the first bent portion 22. On the side, a semicircular rib 45 that connects the vertical ribs 44 and 44 is provided. At the tips of the vertical ribs 44, 44, forward concave portions 46 are respectively formed.

  A terminal cover 47 is provided on the upper surface of the pipe 21 and is fixed to a boss 48 projecting from the outer surface of the second bent portion 23 between the terminal pins 16b and 16b with screws 49. The terminal cover 47 has a semi-cylindrical shape covering the upper part of the front side of the ring-shaped rib 3 and above the vertical ribs 44, 44. L-shaped locking pieces 50, 50 are formed on both sides of the front end, and the front end upper surface is formed. Forms a step 51 along the circumferential direction.

Therefore, when the terminal cover 47 is assembled to the pipe 21 so that the locking pieces 50, 50 are locked to the concave portion 46 of the vertical rib 44 from the front, the terminal cover 47 is ring-shaped as shown in FIG. Between the rib 43 and the semicircular rib 45, the upper sides of the vertical ribs 44, 44 are covered in a non-contact manner. At this time, the front end of the terminal cover 47 is continuously connected to the semicircular rib 45. A stepped portion 52 is formed along the circumferential direction on the outer periphery of the front end of the semicircular rib 45, and the stepped portion 51 of the terminal cover 47 and the stepped portion 52 of the semicircular rib 45 are both in the assembled state in the assembled state. The stepped portions 51 and 52 are fitted into the rear end and come into contact with the rear end of the cup 33 to define the advance position of the pipe 21 relative to the cup 33. That is, the step portion 51 at the front end of the terminal cover 47 and the step portion 52 of the semicircular rib 45 serve as engaging portions .

  The lead wire 15 connected to the terminal pins 16b and 16b is routed in the gap between the terminal cover 47 and the pipe 21, and from between the first bent portion 22 and the cup 33 as shown in FIG. It is pulled out to the side through the through hole 36 of the support shaft 34 and connected to the motor 53 accommodated sideways in the motor accommodating portion 28. The motor 53 has a cylindrical shape extending in the left-right direction. Terminals 54 and 54 are provided on the end surface on the pipe 21 side, and an output shaft 55 is provided on the opposite side. A brush 56 in which brush bristles 58 are spirally implanted on the brush shaft 57 is rotatably accommodated in the brush accommodating portion 29, and an input portion 59 provided at the output shaft 55 of the motor 53 and the end of the brush shaft 57. A belt 60 is stretched between the two.

  In the power nozzle 5 of the cleaner 1 configured as described above, the pipe 21 to which the terminal cover 47 is first attached is inserted into the cup 33 and the retaining ring 37 is assembled to the first bent portion 22, and the support shaft 34 of the cup 33, 34 is set in the receiving seat 32 of the lower housing 25. Then, after the motor 53 connected with the lead wire 15 drawn out from the through hole of the support shaft is accommodated in the motor accommodating portion 28 and the brush 56 is accommodated in the brush accommodating portion 29, the upper housing 24 is assembled and screwed, and then the pipe 21 12-14, it is supported so that it can rotate to the up-down direction centering on the spindles 34 and 34 of the cup 33, as shown in FIGS. Further, the pipe 21 that is prevented from being detached by the retaining ring 37 can rotate around the axis of the first bent portion 22 inserted into the cup 33 (however, the protrusion 41 of the retaining ring 37 can move within the cutout portion 42 of the cup 33). It is regulated to approximately half a circle.)

  The power nozzle 5 in which the wide housing 20 and the pipe 21 are connected in this way is connected to the extension nozzle 4, and the extension nozzle 4 is connected to the nozzle 3, and in the state shown in FIGS. Then, the motor 7 is driven to rotate the fan 8, and the motor 53 of the power nozzle 5 is also driven to rotate the brush 56 via the belt 60. Therefore, outside air is sucked from the horizontally long suction port 30 of the wide housing 20, passes through the power nozzle 5, the extension nozzle 4, and the nozzle 3 and is discharged from the exhaust port (not shown) of the cleaner body 2 through the filter unit 10 and the fan 8. The Thereby, the dust sucked together with the outside air is captured by the filter unit 10. In particular, in the power nozzle 5, the brush 56 rotates, so that dust such as floor is scraped up and efficiently sucked.

  In the upper housing 24, vent holes 63, 63... For communicating the inside and outside of the wide housing 20 are formed on the left side corresponding to the upper side of the motor 53. In the operation state of the cleaner 1, the air that has entered the wide housing 20 from the vent hole 63 cools the outer periphery of the motor 53 and then moves to the inside of the pipe 21 through the through hole 36 and the through hole 62. Thus, even if the motor 53 is not provided with a fan, the motor 53 can be cooled using the suction force.

Thus, according to the power nozzle 5 and the cleaner 1 of the said form, the spindle 34 is provided in the outer side of an engaging part (step part 51,52), and the lead wire 15 connected to the motor 53 is a spindle. By being routed through 34 , compaction in the front-rear direction can be achieved.
Further, the motor 53 is formed in a cylindrical shape that is accommodated on the side of the pipe 21 and extends in the left-right direction. A terminal 54 is provided on the pipe 21 side of the motor 53, and an output shaft 55 is provided on the opposite side. By providing the input portion 59 that is rotationally transmitted from the shaft 55, the size in the front-rear direction can be made more compact.

Furthermore, a terminal cover 47 that covers the terminal pin 16 b to which the lead wire 15 is connected is provided on the pipe 21, and an engaging portion (step portion 51) is formed on the terminal cover 47. The engaging portion can be easily formed. Further, the lead wire 15 can be easily routed between the terminal cover 47 and the cup 33.
In addition, by providing the pipe 21 with a retaining member (stop ring 37) that prevents the cup 33 from being detached from the pipe 21, the structure is simplified and the assembly is facilitated.
And by providing the rotation prevention means (protrusion 41, the notch part 42) which controls the rotation range of the pipe 21 with respect to the cup 33, the lead wire 15 is prevented from being pulled or disconnected due to the pipe 21 being excessively rotated.
In particular, when the total weight of the power nozzle 5 is 300 g or less, the weight becomes light and easy to use.

Note that the connection between the wide housing and the pipe is not limited to the above-described form. For example, the lead wire between the pipe and the cup is omitted, and the pipe is always slid within the rotation range of the pipe between the outer surface of the pipe and the inner surface of the cup. It is also possible to provide an electrical connection by providing a terminal plate that comes into contact.
In addition, by engaging the wide housing and the pipe directly between the spherical surfaces and using the contact terminal for the engaging portion, the two rotary shafts in the above embodiment can be replaced with an infinite rotary shaft (universal joint). It is possible to feed power from the pipe side to the wide housing side. In this case, it is necessary to use a contact terminal corresponding to the rotation range.

On the other hand, from the description of the above embodiment, the following inventions 1 to 3 other than the invention described in the claims can be grasped.
(Invention 1)
Pipes,
A wide housing held by the pipe and formed wide in the left-right direction;
A motor housed on the side of the pipe inside the wide housing;
A brush that is rotated by the motor and can guide dust into the wide housing,
The motor has a cylindrical shape extending in the left-right direction, a terminal is provided on the pipe side of the motor, and an output part is provided on the opposite side,
A suction assisting tool, wherein the brush is provided with an input portion that is rotated by the output portion.
According to this invention, there exists an advantage that the dimension of the front-back direction becomes compact.

(Invention 2)
Pipes,
A cup penetrating the pipe;
A wide housing rotatable in the front-rear direction with respect to the cup,
A suction assisting device comprising a retaining member that engages with the pipe and prevents the cup from detaching from the pipe.
According to the present invention, there is an advantage that the structure is simple and the assembly is easy.

(Invention 3)
Pipes,
A wide housing held by the pipe and formed wide in the left-right direction;
A motor housed inside the wide housing;
A suction assisting tool having a brush rotated by the motor and capable of guiding dust to the inside of the wide housing,
A suction aid characterized by a total weight of 300 g or less.
According to the present invention, there is an advantage that it is lightweight and easy to use.

  1. Cleaner, 2. Cleaner body, 3. Nozzle, 4. Extension nozzle, 5. Power nozzle, 6. Housing, 7. Motor, 8. Fan, 9. Fan inlet, 10. .. Filter part, 14 .. Substrate, 15 .. Lead wire, 16a, 16b .. Terminal pin, 20 .. Wide housing, 21 .. Pipe, 22 .. First bent part, 23. 24 .. Upper housing, 25 .. Lower housing, 27 .. Connecting portion, 28 .. Motor housing portion, 29 .. Brush housing portion, 32 .. Receiving seat, 33 .. Cup, 34. 36 .. Through hole, 37 .. Stop ring, 41 .. Projection, 42 .. Notch, 47 .. Terminal cover, 51, 52 .. Step, 53 .. Motor, 56.

Claims (8)

A suction assisting tool comprising a pipe and a wide housing connected to the pipe and formed wide in the left-right direction and containing a motor and a brush that rotates by driving of the motor,
The wide housing accommodates the brush on the front side and the motor on the rear side in the left-right direction, and the rear plate portion of the wide housing extends in the left-right direction along the rear outer surface of the motor,
The pipe penetrates from the rear through a cup of a ring body with support shafts protruding from the left and right outer surfaces sandwiching the axis , and the pipe has a retaining member provided at the tip of the pipe so that the pipe is in the wide housing. Is prevented from coming off,
An engaging portion that engages with a rear end of the cup in the retaining state is formed on an outer periphery of the pipe, and the pipe rotates with respect to the cup by the retaining member and the engaging portion. Where possible coupled,
The wide housing is provided with a support bearing portion that engages with the support shaft on the front side of the rear outer surface of the motor and holds the cup so as to be rotatable in the front-rear direction around the support shaft. The cup including the support shaft and the engaging portion are accommodated in the wide housing,
The suction assisting tool, wherein the support shaft is arranged outside the engaging portion, and a lead wire connected to the motor is drawn through the support shaft.   The motor has a cylindrical shape that is accommodated on the side of the pipe and extends in the left-right direction, a terminal is provided on the pipe side of the motor, and an output portion is provided on the opposite side, and the output is provided on the brush. The suction assisting device according to claim 1, further comprising an input portion that is rotationally transmitted from the portion.   The pipe is provided with a terminal cover that covers a terminal to which the lead wire is connected, and the engaging portion is also formed on the terminal cover, and locking pieces formed on both front end sides of the terminal cover are provided. By engaging the terminal cover with locking to the pipe side, the engaging portion on the pipe side and the engaging portion on the terminal cover side are connected in a continuous manner and engaged with the rear end of the cup. The suction assisting tool according to claim 1 or 2, characterized in that   The suction assisting device according to any one of claims 1 to 3, further comprising a detent means for restricting a rotation range of the pipe with respect to the cup.   The suction aid according to any one of claims 1 to 4, wherein the total weight is 300 g or less. Pipes,
A cup to which the pipe is inserted and connected so as to be rotatable around an axis ;
A suction assist comprising a wide housing that is connected to the cup and that is wide in the left-right direction, accommodates a motor and a brush that rotates by driving the motor, and is rotatable in the front-rear direction with respect to the cup. Tools,
The wide housing contains the brush in the front and the motor in the left and right, respectively.
The pipe is connected axially to the cup through a first shaft portion within the wide housing formed at the front end, the cup, the wide housing via a second shaft portion extending in the lateral direction And a retaining portion for the pipe with respect to the cup is disposed in the wide housing in front of the second shaft portion, and the second shaft portion is disposed in the wide housing. A support bearing part rotatably connected to the front side of the rear outer surface of the motor is provided, and the cup including the second shaft part is accommodated in the wide housing;
The motor is disposed on an axial extension of the second shaft portion;
A lead assisting tool, wherein a lead wire extending from the motor is routed through the second shaft portion. A suction assisting tool comprising a pipe and a wide housing connected to the pipe and formed wide in the left-right direction and containing a motor and a brush that rotates by driving of the motor,
The wide housing accommodates the brush on the front and the motor on the rear side in the left-right direction, and the rear plate portion of the wide housing extends in the left-right direction along the rear outer surface of the motor . In the wide housing, a cup to which the pipe is rotatably inserted and connected around the axis is connected via a shaft portion extending in the left-right direction,
The pipe is connected to the wide housing so as to be rotatable about two axes of the pipe axis intersecting each other and the left and right shaft parts of the cup, and the shaft part of the cup is more than the rear outer surface of the motor. Disposed in the front side and housed in the wide housing,
A suction assisting tool, wherein a terminal provided on the pipe and the motor are electrically connected by a lead wire.   A cleaner to which the suction assisting tool according to any one of claims 1 to 7 is connected.

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