JPH056944Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to the suction port body of a vacuum cleaner, and is suitable for use in, for example, a turbine fan that is rotated by the airflow sucked from the suction port. The present invention relates to a configuration in which a rotating brush is rotated by driving a driving source.

(Prior Art) The suction port body of a conventional vacuum cleaner of this type includes an upper case body and a lower part coupled to the upper case body, as described in, for example, Japanese Utility Model Application Publication No. 58-100755. A rotary brush is rotatably supported in a case body configured by a case body, facing a suction port formed in the lower case body, and the rotary brush is driven by an air flow sucked from the suction port. A structure was adopted in which the turbine fan rotated in conjunction with the rotating turbine fan via a belt.

(Problems to be Solved by the Invention) With the structure of the suction port body of the conventional vacuum cleaner described above, when the rotating brush is removed for cleaning etc., the upper case body and the lower case body of the case body are separated. You have to disassemble it, remove the belt from the pulley that is integrally provided at the end of the rotating brush, and then remove the rotating brush together with the pulley. When you remove the belt from the pulley, the belt is not fixed, so the position of the belt may change. Moreover, when assembling the rotating brush, it was necessary to take out the end of the belt and hang the belt around the pulley while rotating the pulley of the rotating brush, resulting in poor operability.

Also, a configuration has been considered in which an opening is formed in the lower part of the case body corresponding to the position where the rotating brush is supported, and this opening can be opened and closed with the lower cover. When removing the cover, the case body must be reversed to attach and detach the cover, which is a complicated operation, and
Since a pulley is integrally attached to the rotating brush, the above-mentioned problem also occurred.

The present invention was developed in view of the above problems, and it is possible to open the upper part of the front case without disassembling the case body into the upper case and the lower case, and with the belt still hanging around the rotary brush rotation pulley. To provide a suction mouth body of a vacuum cleaner in which a rotating brush can be easily attached and detached from a part thereof, and the rotating brush can be easily cleaned.

[Structure of the idea]

(Means for Solving the Problems) The vacuum cleaner of the present invention consists of a lower case body having a brush chamber with a suction port opened at the front bottom, and an upper case body coupled to the lower case body. a case body provided with a connecting pipe; a rotary brush disposed in the case body so as to face the suction port; both ends rotatably and removably supported in the brush chamber; In a vacuum cleaner suction mouth body provided with a drive source for rotating the rotating brush via a belt, a rotating pulley provided on a rotating shaft of the driving source is removably engaged with one end of the rotating brush. The belt is suspended around a pulley for rotating the rotating brush, and a bearing body is fitted into the pulley for rotating the rotating brush so that the pulley for rotating the rotating brush is rotatably engaged and held. A bearing body that rotatably supports the other end and a bearing body that rotatably supports the rotary brush rotation pulley are formed on both sides of the brush chamber of the main body case to removably hold the bearing body. A retaining part for preventing the bearing body from coming off in the direction of the brush chamber is formed in the bearing holding part to be held, and one end of the rotary brush is removably engaged with the pulley for rotating the rotary brush, and this rotation The other end of the brush is rotatably and detachably supported by the case body via a bearing body, and at least the entire rotating brush, one end of the rotating brush, and a pulley for rotating the rotating brush are disposed on the front upper part of the case body. An opening is formed to expose the engagement portion with the rotating brush and the other end bearing body of the rotating brush, and a top cover that can be opened and closed is provided in the opening, and the rotating brush can be removed from the opening in the upper front side of the case body. That is.

(Function) The suction mouth body of the vacuum cleaner of the present invention can be opened by opening the upper cover of the opening at the front upper part of the upper case body without disassembling the case body into the lower case body and the upper case body. The entire body, a rotary brush rotating pulley that removably engages one end of the rotating brush, and a bearing body at the other end of the rotating brush are exposed in an opening, and one end of the rotating brush is connected to the rotating brush rotating pulley from this opening. At the same time, remove the other end bearing body, remove only the rotating brush from the opening,
A belt is kept suspended around the pulley for rotating the rotating brush. Further, when the rotating brush is assembled, one end of the rotating brush only needs to be engaged with the rotating brush rotating pulley, and there is no need for an operation of suspending the belt around the rotating brush rotating pulley.

(Embodiment) The configuration of an embodiment of the present invention is shown in drawings 1 to 8.
The diagram will be explained.

Reference numeral 1 denotes a horizontally elongated substantially rectangular case body, which is composed of an upper case body 2 and a lower case body 3 connected to the upper case body 2. The lower case body 3 has an elongated suction port along the front edge at its front bottom. 4 is opened, and an opening 5 is formed at the upper front side of the upper case body 2.

Inside the case body 1, a rotating brush chamber 7 is defined on the front side by a partition wall 6 projecting from the inner surfaces of the upper case body 2 and the lower case body 3 along the longitudinal direction of the body 1, and a rotating brush chamber 7 is defined on the rear side. Furthermore, a fan chamber 10 is formed in the center by left and right partition walls 8 and 9, a bearing chamber 11 is formed on one side of this fan chamber 10, and a switching operation chamber 12 is formed on the other side. ing. The suction port 4 is opened at the bottom of the brush chamber 7, and the rear center of the brush chamber 7 is connected to the fan chamber 10 through the opening 1 of the partition wall 6.
3.

Furthermore, an opening 15 through which the connecting pipe 14 projects is formed at the rear of the fan chamber 10 of the case body 1 . This connecting pipe 14 includes a connecting pipe body 16, a semi-cylindrical connecting body 17 that is perpendicular to this connecting pipe body 16 at the base of this connecting pipe body 16, and this connecting pipe body 1.
6 and a connecting tube 18 rotatably connected to the tip in the circumferential direction. On both sides of this connecting body 17, shaft parts 20 and 21 are rotatably supported by shaft supports 19 formed on the partition walls 8 and 9.
is provided protrudingly, and when both case bodies 2 and 3 are combined, the connecting body 1
The shaft parts 20 and 21 of 7 are rotatably supported in the vertical direction, and the connecting pipe body 18 is connected to the opening 15 of the case body 1.
protrudes outward from the

Further, the turbine fan 22 as a drive source has a rotating shaft 23 protruding to one side, and this rotating shaft 23 is rotatably supported in the bearing chamber 11 via a bearing 24. The rear half is covered with the connecting body 17 and is rotatably disposed. Further, a gear-shaped pulley 25 is attached to the end of the rotating shaft 23 of the turbine fan 22.

Further, the rotating brush 26 is rotatably arranged in the brush chamber 7 of the case body 1, and the circumferential surface of the elongated shaft body 27 of the rotating brush 26 is provided with the suction port 4.
Brush bristles 28 protruding from the base are spirally planted. A plurality of, for example, four
Semicircular arc-shaped engagement protrusions 29 are protruded at intervals. Further, at the other end of the shaft body 27 of the rotating brush 26, a support shaft 30 is projected and a bearing body holding portion 32 having an engaging protrusion 31 at the tip is integrally formed. A bearing body 34 having a hook-shaped protrusion 33 that is engaged with the engagement protrusion 31 is rotatably fitted and locked, and the support shaft 30 is rotatably fitted into the shaft hole 35 of the bearing body 34. It is inserted.

Further, one end of the shaft body 27 of the rotating brush 26 is removably fitted into a gear-shaped pulley 3.
A fitting hole 37 into which the shaft body 27 of the rotary brush 26 is fitted is formed on the inner surface of the numeral 6, and an engagement hole 37 is formed on the inner periphery of the fitting hole 37 to connect the engagement protrusion 29 in the rotation direction. A recess 38 is formed corresponding to the engagement protrusion 29. Further, a bearing hole 39 is formed through the center of the pulley 36, and a bearing locking recess 40 is formed at the inner peripheral edge of the bearing hole 39. Further, a bearing body 41 is rotatably fitted into this shaft support hole 39, and an engagement protrusion 42 formed on this bearing body 41
is engaged with the bearing locking recess 40.

Further, both the bearing bodies 34 and 41 are shown in FIGS. 5 to 8.
As shown in the figure, it is detachably held by bearing holding portions 43 formed on both sides of the brush chamber 7 of the case body 1. This bearing holding portion 43 is connected to the bearing body 3.
A substantially rectangular engaging portion 44 formed on the outer periphery of 4, 41
Projecting walls 45, 46 that engage with the front and rear edges of the vehicle are protruded in parallel from above to downward and rearward in the front and rear directions, and a receiving projection 47 is provided between the projecting walls 45, 46. There is. Further, a retaining portion 48 for the bearing body 41 is formed at the tip of one of the protruding walls 45, 46.

Further, the belt 49 is suspended around the pulleys 25 and 36, and the pulley 2 is attached to the inside of the belt 49.
Concave and convex portions are formed that mesh with the outer peripheral gear-like surfaces of the belts 5 and 36, and the rotation of the turbine fan 22 is transmitted to the rotating brush 26 by the belt 49.

In addition, in the switching operation chamber 12 of the case body 1, there is a switching operation body 51 of a sliding plate 50 that adjusts the opening area of the opening 13 of the partition wall 6 communicating with the fan chamber 10 formed at the rear center of the brush chamber 7. is provided, and when the opening area of the opening 13 is narrowed by operating the switching actuator 51, the suction air from the suction port 4 is strongly blown onto the turbine fan 22, and the turbine fan 22 is rotated.

Further, in the upper opening 5 of the rotating brush chamber 7 of the case body 1, the entire rotating brush 26, one end of the rotating brush 26, and a pulley 3 for rotating the rotating brush are provided.
6 and the other end bearing body 34 of the rotating brush 26 are exposed, and this opening 5 is closed with a removable upper cover 52. The upper cover 52 has a locking claw 54 that engages with an engaging portion 53 at one end formed on the front edge of the upper case body 2 and an engaging portion 5 at the other end.
The movable locking claw 56 is engaged with and disengaged from the engaging portion 55 by operating a knob 57 protruding from the upper surface of the upper cover 52.

A window hole 59 is formed in the upper surface of the upper case body 2 from which a knob 58 of an operating body 51 for opening and closing the opening 13 of the fan chamber 10 projects.

Next, the operation of this embodiment will be explained.

When the connecting tube 18 of the connecting tube 14 of the suction port case body 1 is connected to a vacuum cleaner via a hose or the like and the vacuum cleaner is driven, dust and air are sucked in from the suction port 4 of the case body 1. will be included. The air together with the dust sucked in from the suction port 4 flows into the fan chamber 10 from the opening 13 of the rotating brush chamber 7. At this time, if the opening 13 is narrowed by the sliding plate 50, the air flows into the turbine fan 22. is strongly blown, and while rotating the turbine fan 22, it is guided by the connecting body 17 and sucked into the vacuum cleaner via the connecting pipe body 18.

Then, the rotation shaft 2 is rotated by the rotation of the turbine fan 22.
3 rotates, the belt 49 suspended around the pulley 25 is driven, and the pulley 36 to which the shaft body 27 of the rotating brush 26 is connected is rotated by the belt 49, and the rotating brush 26 engages with the engagement recess 38 of the pulley 36. The rotating brush 26 is rotated by engagement with the engagement protrusion 29 of the shaft body 27 of the rotating brush 26, and the brush bristles 28 of the rotating brush 26 scrape up dust and the like from the cleaning surface and are sucked through the suction port 4. .

In addition, if dust or the like becomes entangled in the brush bristles 28 of the rotating brush 26, the entire rotating brush 26 in the rotating brush chamber 7, the engagement between one end of the rotating brush 26 and the rotating brush rotating pulley 36, and the bearing body 34 at the other end of the rotating brush 26 are exposed by opening the upper cover 52 from the case body 1, and as shown in Fig. 2, when the bearing body 34 at the other end of the rotating brush 26 is removed from the bearing holding portion 43 and the rotating brush 26 is pulled toward the other end, the bearing body 41 is prevented from coming off by the retaining portion 48 and the bearing body 41 is engaged and held by the pulley 36, so that the shaft body 27 of the rotating brush 26 comes off the fitting hole 37 of the pulley 36, and the pulley 36 remains held by the case body 1 while the belt 49 is held in a state where it is wound around the pulley 36.
6 to remove dust and the like adhering to the brush bristles 28.

When installing the rotating brush 26, one end of the shaft 27 is fitted through the opening 5 into the fitting hole 37 of the pulley 36 by aligning the engagement protrusion 29 with the engagement recess 38, and the other end is fitted into the fitting hole 37 of the pulley 36. The bearing body 34 is engaged with the bearing holding part 43. In this state, the shaft body 27 of the rotating brush 26
The engagement protrusion 29 is engaged with the engagement recess 38 of the engagement hole 37 of the pulley 36, and the rotating brush 26 is engaged with the engagement recess 38 of the engagement hole 37 of the pulley 36.
6 in the rotational direction. and upper cover 52
to cover the opening 5 of the case body 1.

Note that a damper 60 is wound and attached to the joint between the upper case body 2 and the lower case body 3 of the case body 1.

Next, the configurations of other embodiments are shown in drawings 9 to 11.
The diagram will be explained.

This embodiment is different from the previous embodiment in that the front edge of the portion of the rotating brush 26 that is pivotally supported in the rotating brush chamber 7 of the case main body 1, which is attached to the bristles 28, is lower than the center of the rotating brush 26. A concave edge 61 is formed at a lower position, and a projecting edge 62 that engages with this concave edge 61 is attached to the upper cover 52.
is formed on the leading edge of

In the configuration of this embodiment, when the upper cover 52 is removed when removing the rotating brush 26, the horizontal center line of the rotating brush 26 is located above the front edge of the lower case body 3, and the rotating brush 26 cannot be removed. It's easy to do.

[Effect of idea]

According to the present invention, a belt is suspended between a rotating pulley provided on the rotating shaft of the drive source and a rotating brush rotating pulley rotatably supported by the case body via a bearing body, and One end of the rotary brush is removably engaged, a bearing body is fitted into the rotary brush rotation pulley to rotatably engage and hold the rotary brush rotation pulley, and the bearing body and the other end of the rotary brush are connected. A bearing body that rotatably supports the rotating brush is removably held in bearing holders formed on both sides of the brush chamber of the main body case, and the bearing body that rotatably supports the rotary brush rotation pulley is formed in the bearing holder. At least the entire rotating brush, the engagement portion between one end of the rotating brush and the pulley for rotating the rotating brush, and the bearing body at the other end of the rotating brush are exposed at the upper front side of the case body. An opening is formed, a top cover that can be opened and closed is provided in this opening, and the rotating brush can be removed from the opening at the top of the front side of the case body, so operations such as reversing the case body of the suction port body are easy. The rotating brush can be taken out from the opening by simply opening the top cover and opening the opening.Moreover, the rotating brush can be taken out separately from the rotating brush rotation pulley, making it easy to take out the rotating brush. When this happens, the rotary brush rotating pulley is held in engagement with the bearing body which is held in place by the bearing holder so that the belt remains suspended.
The belt does not enter the case body, and when installing the rotating brush, there is no need to take out the end of the belt and rotate the rotating brush pulley while hanging the belt around the pulley. The rotary brush can be easily attached by simply engaging one end of the rotary brush with the rotary brush rotation pulley, and dust attached to the bristles of the rotary brush can be easily removed.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the suction port body of a vacuum cleaner showing an embodiment of the present invention, Fig. 2 is a perspective view showing the plate from which the above rotating brush has been removed, and Fig. 3 shows the above rotating brush removed from the pulley. A perspective view of part of the removed state,
Fig. 4 is a partial perspective view showing the state in which the above rotary brush and the pulley are combined, Fig. 5 is a plan view of the joint between one end side of the above rotary brush and the pulley, and Fig. 6 is the bearing holding portion of the above. Fig. 7 is a side view of the same as above;
Fig. 8 is a plan view of the shaft support on the other end side of the rotating brush, Fig. 9 is an exploded perspective view of the suction port body of a vacuum cleaner showing another embodiment, Fig. 10 is a longitudinal sectional side view of the same; FIG. 11 is a longitudinal sectional side view showing a state in which the cover is removed. 1...Case body, 2...Upper case body, 3...
... Lower case body, 4 ... Suction port, 5 ... Opening, 7 ... Brush chamber, 26 ... Rotating brush, 14
... Connecting pipe, 22 ... Turbine fan, 25,3
6... Pulley, 34, 41... Bearing body, 43...
Bearing holding part, 49... Belt, 48... Retaining part, 52... Upper cover.

Claims (1)

[Claims for Utility Model Registration] (1) A case body consisting of a lower case body having a brush chamber with a suction port opened at the front bottom, and an upper case body connected to the lower case body, with a connecting pipe provided at the rear. A rotating brush is disposed inside the case body facing the suction port and is rotatably and removably supported at both ends in the brush chamber; A suction mouth body of a vacuum cleaner equipped with a drive source rotated through a rotary brush, comprising: a rotary pulley provided on a rotation shaft of the drive source; and a rotary brush rotation pulley removably engaged with one end of the rotary brush. The belt is hung around the belt, a bearing body is fitted into the rotary brush rotation pulley to engage and hold the rotary brush rotation pulley in a rotatable manner, and the bearing body and the other end of the rotary brush are rotatably supported. A bearing holder is formed on each side of the brush chamber of the main body case to removably hold a bearing body that rotatably supports the rotary brush rotation pulley. A retaining portion is formed to prevent the bearing body from coming off in the direction of the brush chamber, and one end of the rotating brush is removably engaged with the pulley for rotating the rotating brush, and the other end of the rotating brush is connected to the case. rotatably and detachably supported on the main body via a bearing body, and at least the entire rotating brush, an engagement portion between one end of the rotating brush and a pulley for rotating the rotating brush, and a rotating portion on the front upper part of the case main body. The rotating brush is characterized in that an opening is formed to expose the other end bearing body of the brush, and a top cover that can be opened and closed is provided in the opening, so that the rotating brush can be removed from the opening in the upper front side of the case body. Vacuum cleaner suction body. (2) Lower part of the case body The upper part of the front edge of the case body is formed at a position lower than the center of the rotating brush to correspond to the rotating brush, as described in claim (1) of the utility model registration. vacuum cleaner suction body.