JP6801244B2 - Vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

Equipped with an electric blower that generates suction air to suck air containing dust inside the main body, and to guide dust to the main body to the exhaust part that exhausts the airflow generated by this electric blower to the outside of the main body. There is an electric vacuum cleaner having an air blow function capable of connecting a connecting pipe of a hose and using the exhaust air discharged from the main body for air blow (see, for example, Patent Document 1).

Japanese Patent No. 5637643 (page 5, FIG. 7)

In a conventional vacuum cleaner, when cleaning a high place, an attachment for cleaning the high place is connected to the end of the hose to suck air containing dust. The attachment for cleaning high places is a breathable part that extends the suction air passage, and has an opening for connecting to a hose at one end and an opening for sucking air containing dust at the other end. There is.

A tip member capable of changing the direction of suction air in a desired direction at a high place is rotatably attached to the outer shell of the attachment near the opening on the suction side. The tip member is attached by bending the rotation shaft by the elasticity of the remaining part by making a hole around the rotation shaft provided in the attachment. This hole is ventilable.

When cleaning a high place, there is a ventilated hole at the attachment point of the tip member of the attachment, so air is sucked from other than the opening for sucking the attachment, so air containing dust can be efficiently sucked. There is a problem that it cannot be sucked.

In addition, an attachment for cleaning high places is also required when trying to blow off dust by air blow instead of suction, and the exhaust air from the vacuum cleaner body will be blown out from the opening of the attachment toward the relevant part. However, since there is a ventilable hole in the attachment point of the tip member, part of the exhaust air leaks from that hole, and the force of the exhaust air blown out from the opening of the attachment weakens, so use the attachment. Occasionally, there is a problem that the exhaust air cannot be used efficiently.

In order to solve such a problem, the present invention provides an electric vacuum cleaner capable of efficiently blowing out exhaust air from the opening of the attachment without causing air leakage in the middle of the air passage leading to the opening of the attachment. The purpose is to do.

The electric vacuum cleaner according to the present invention that solves the problem is provided with an electric blower that generates an air flow for sucking air containing dust inside, and has a suction port that sucks air inside and discharges the sucked air to the outside. A main body with an exhaust port, a dust collecting part for separating and accommodating dust contained in air, and an air passage whose one end side is connected to the suction port of the main body to guide air containing dust to the inside of the main body. A hose body that becomes a part or one end side is connected to the exhaust port of the main body and is a part of the air passage that guides the discharged air to the outside of the main body as an air blow, and is connected to the other end side of the hose body. A ventilable tube having a handle, an extension tube detachably connected to the tube, a first opening at one end and a second opening at the other end, a first opening and a second. It has an air passage that communicates with the opening of the attachment, and has an attachment whose first opening side is detachably connected to a tubular body or an extension tube, and is located near the second opening of the attachment from the outer shell of the attachment. , A rotating shaft is provided that protrudes outward in a direction orthogonal to the longitudinal direction of the attachment, and the air passage of the attachment and the external space of the attachment are separated by the outer shell of the attachment, and a bearing hole that is fitted to the rotating shaft is provided. A tip member that has and is rotatably supported by an attachment around a rotation shaft is attached, and the tip member is provided with a regulating rib that regulates ventilation of the space between the tip member and the attachment, and the attachment. At the place where the tip member of the above is attached, the opening that communicates the air passage of the attachment with the external space is only the second opening.

According to the present invention, at the place where the tip member of the attachment is attached, the opening for communicating the air passage of the attachment and the external space is only the second opening, so that when used for suction, dust is included. However, no air is sucked from other than the second opening for sucking air, and all suction forces can be used to suck air containing dust.

Further, when used for air blow, the exhaust air from the main body does not leak in the middle of the air passage leading to the second opening of the attachment. Therefore, even if the attachment is used, the air discharged from the main body can be used for air blowing without waste.

It is a perspective view which shows the schematic structure of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view which shows the structure which attached the suction tool to the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a side view of the vacuum cleaner main body which concerns on Embodiment 1 of this invention. It is sectional drawing which cut at the center of the vacuum cleaner main body which concerns on Embodiment 1 of this invention in the front-rear direction, and looked at from the side. It is a partially enlarged view of the operation part of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state which pulled out the dust collection unit a little from the electric vacuum cleaner main body which concerns on Embodiment 1 of this invention. (A) Partial detailed view of the connection portion of the hose body of the vacuum cleaner according to the first embodiment of the present invention as viewed from the side of the locking hook, (b) the vacuum cleaner according to the first embodiment of the present invention. Partial detailed view of the connection part of the hose body as viewed from the side when the hook for locking is on the upper side, (c) The connection part of the hose body of the vacuum cleaner according to the first embodiment of the present invention is connected to the main body. It is a figure seen from the side of communication. It is a figure which looked at the suction port (suction side hose body connection port) of the vacuum cleaner body which concerns on Embodiment 1 of this invention from the direction A shown in FIG. Connect the connection part of the hose body to the suction port (suction side hose body connection port) of the vacuum cleaner main body according to the first embodiment of the present invention, cut at the locking hook, and cut around the locking hook. It is an enlarged view seen from the side shown. It is a schematic cross-sectional view which shows an example of the connection (connection) state of a 3rd connection terminal and a 3rd connection terminal receiver. (A) A view of the vacuum cleaner main body according to the first embodiment of the present invention seen from the rear side, (b) In FIG. 11 (a), a cover member (exhaust) covering an exhaust port (exhaust side hose body connection port). It is the figure of the state in which the exhaust port (exhaust side hose body connection port) is exposed by opening the mouth cover). (A) A perspective view showing a state shortly before connecting the connection portion of the hose body to the exhaust port (exhaust side hose body connection port) of the vacuum cleaner main body according to the first embodiment of the present invention, (b) the present invention. It is a perspective view which shows the state which connected the connection part of the hose body to the exhaust port (exhaust side hose body connection port) of the vacuum cleaner body which concerns on Embodiment 1. Around the locking hook, which is cut at the locking hook by connecting the hose body connecting portion to the exhaust port (exhaust side hose body connecting port) of the vacuum cleaner body according to the first embodiment of the present invention. It is an enlarged view which shows. An enlarged view showing the periphery of the detection means, in which the connection portion of the hose body is connected to the exhaust port (exhaust side hose body connection port) of the vacuum cleaner main body according to the first embodiment of the present invention and cut at the detection means. is there. FIG. 5 is an external perspective view showing a state in which a hose body to which an attachment to which a tip member is attached is connected to an exhaust port (exhaust side hose body connection port) of the vacuum cleaner body according to the first embodiment of the present invention. It is a perspective view of the state in which the attachment which attached the tip member is connected to the tube body of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view of the attachment to which the tip member of the vacuum cleaner which concerns on Embodiment 1 of this invention is attached. It is a side view which looked at the state which attached the tip member of the vacuum cleaner which concerns on Embodiment 1 of this invention extended from one side. It is a side view of the internal air passage member which constitutes the attachment of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a figure which looked at the internal air passage member of the attachment of the vacuum cleaner which concerns on Embodiment 1 of this invention from the direction E shown in FIG. (A) A perspective view of the tip member of the vacuum cleaner according to the first embodiment of the present invention as viewed from the side, and (b) flocking of the tip member of the vacuum cleaner according to the first embodiment of the present invention. It is a perspective view seen from the direction in which the inner surface can be seen so as to face up. It is a side view of the main part in a state where the tip member of the vacuum cleaner which concerns on Embodiment 1 of this invention is removed from an attachment. (A) A view from above in a state in which the attachment to which the tip member of the vacuum cleaner according to the first embodiment of the present invention is attached is extended, and (b) the tip of the vacuum cleaner according to the first embodiment of the present invention. It is a side view which looked at the state which extended the attachment which attached the member from the other side. It is sectional drawing which cut at the cutting line FF shown in FIG. 23 (b). It is a side view which looked at the state which the tip member was rotated from the state of FIG. 23 (b) from the other side surface. (A) is a cross-sectional view of a main part cut along the cutting line GG shown in FIG. 23 (a), and (b) is a cross-sectional view of the main part in a state where the tip member is rotated from the state of FIG. 25 (a). FIG. 3 is a view of an attachment to which a tip member of the vacuum cleaner according to the first embodiment of the present invention is attached, as viewed from the H direction shown in FIG. 23 (b). It is a perspective view of the state which held the attachment in the extension tube. (A) A side view of the attachment to which the tip member of the vacuum cleaner according to the second embodiment of the present invention is attached as viewed from one side, (b) rotating the tip member 180 degrees from the state of FIG. 29 (a). It is a side view of the state in which it was made. It is a perspective view of the tip member of the vacuum cleaner which concerns on Embodiment 2 of this invention.

Embodiment 1
(Vacuum cleaner configuration)
FIG. 1 is a perspective view showing a schematic configuration of the vacuum cleaner according to the first embodiment of the present invention, and FIG. 2 is a perspective view showing a configuration in which a suction tool is attached to the vacuum cleaner according to the first embodiment of the present invention. FIG. 3 is a side view of the vacuum cleaner body according to the first embodiment of the present invention, and FIG. 4 is a cross-sectional view of the center of the vacuum cleaner body according to the first embodiment of the present invention cut in the front-rear direction and viewed from the side. FIG. 5 is a partially enlarged view of the operation unit of the vacuum cleaner according to the first embodiment of the present invention, and FIG. 6 is a state in which the dust collecting unit is slightly pulled out from the main body of the vacuum cleaner according to the first embodiment of the present invention. It is a perspective view which shows.

Hereinafter, the configuration of the vacuum cleaner according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7.
In each figure, the same parts or corresponding parts may be designated by the same reference numerals, and some description thereof may be omitted.

As shown in FIG. 1, 100 is an electric vacuum cleaner according to the first embodiment of the present invention, and is an extension with an attachment 15 used for cleaning a high place or air blowing a high place to which a tip member 16 is attached. A pipe 2, a pipe body 3 having an operation unit 4 and a hand handle portion 3a, a hose body 5 composed of a connection portion 5a and a flexible soft pipe 5b, and a dust collecting unit 8 housed in an electric vacuum cleaner main body 6. It is composed.

FIG. 2 shows the configuration of the vacuum cleaner 100 when cleaning a normal floor surface or the like to which the suction tool 1 is connected instead of the attachment 15. Since the present invention is an invention of a vacuum cleaner having a configuration that does not use the suction tool 1, the suction tool 1 will be briefly described.

The suction tool 1 has an outer shell made of a hard resin case formed by injection molding, and sucks dust on the floor surface together with air by suction air generated by driving an electric blower 23 described later. .. Although not shown, the suction tool 1 contains a rotating brush driven by an electric motor for scooping up dust from the floor surface, and the case on the floor surface side is provided with an opening, and the rotating brush is provided from the opening. It is configured so that a part of the brush protrudes and comes into contact with the floor surface.

The attachment 15 used in the embodiment of the present invention will be described in detail later, but it is a component made of a hard resin formed by injection molding so as to be ventilated, and is generated by the suction air generated by driving the electric blower 23. For example, the dust accumulated in a high place such as a lighting fixture is sucked together with the air, or the exhaust air generated by driving the electric blower 23 blows off the dust accumulated in the high place.

Like the attachment 15, the extension tube 2 is also a component whose outer shell is made of a hard resin formed by injection molding, has a telescopic structure (not shown), one end is connected to the attachment 15, and the other end is a tube body 3. It is connected to form part of the air passage for suction air or exhaust air.

The hand handle portion 3a provided on the tube body 3 is also made of a hard resin integrally formed with the tube body 3 by injection molding, but the portion to be gripped by the user so as to be easy for the user to grip. Soft resin parts may be used in part.

As shown in FIG. 5, the pipe body 3 has an on / off switch 4a for starting and stopping the electric blower 23, an output variable switch 4b for increasing or decreasing the driving force of the electric blower 23, and suction. When the tool 1 is connected, an operation unit 4 provided with a rotary brush drive switch 4c for driving the rotary brush housed in the suction tool 1 is provided.

The pipe body 3 also forms a part of the air passage for the suction air or the exhaust air, and the other end of the side to which the extension pipe 2 is connected is connected to the flexible soft pipe 5b of the hose body 5. The flexible soft tube 5b is composed of a soft resin component that is hollow and has a bellows-like flexibility.

The outer shell of the electric vacuum cleaner main body 6 is composed of resin parts formed by injection molding. The electric vacuum cleaner main body 6 is provided with a handle 9 used when carrying the electric vacuum cleaner main body 6. The handle 9 is also made of a resin part formed by injection molding.

Further, as shown in FIGS. 1 to 3, a dust collecting unit accommodating portion 6a for accommodating the dust collecting unit 8 is provided on the front side of the electric vacuum cleaner main body 6. The dust collecting unit accommodating portion 6a is provided with a suction port (suction side hose body connection port) 7, and the connection portion 5a provided at the other end of the hose body 5 whose one end is connected to the tube body 3 is a suction port (suction port). The hose body 5 is connected to the electric vacuum cleaner main body 6 by inserting it into the suction side hose body connection port) 7.

As shown in FIG. 3, in order to facilitate the handling of the electric vacuum cleaner main body 6 on the floor surface when the user cleans, the caster type front wheel 10 whose traveling direction can be changed on the lower surface of the electric vacuum cleaner main body 6 A rear wheel 11 having a large diameter is provided on both side surfaces of the electric vacuum cleaner main body 6.

Further, as shown in FIG. 3, the dust collecting unit 8 is inclined with respect to the surface to be cleaned and is housed and attached to the dust collecting unit accommodating portion 6a. In the dust collecting unit 8, a locking portion (not shown) provided on the dust collecting unit 8 side is locked and fixed to an engaging portion (not shown) provided on the electric vacuum cleaner main body 6 side. The locking portion is urged to be locked by an urging means (not shown).

By operating the lock release button 38 provided on the upper part of the dust collection unit 8, the dust collection unit 8 has a locking portion (not shown) provided on the dust collection unit 8 side on the electric vacuum cleaner main body 6 side. It is disengaged from the provided engaging portion (not shown) and becomes removable.

From that state, when a hand (finger) is hung on the handle (finger hook) portion 8a provided on the dust collection unit 8 and pulled out in the direction of the arrow B shown in FIG. 3, the dust collection unit 8 is as shown in FIG. It is removed from the dust collecting unit accommodating portion 6a. A dust collecting chamber 32 for accommodating dust is attached below the dust collecting unit 8.

As shown in FIG. 4, an electric blower 23 is provided near the rear in the electric vacuum cleaner main body 6. By driving the electric blower 23, the attachment 15 is used as described above to generate suction air that sucks dust accumulated in a high place such as a lighting fixture together with air, or dust accumulated in a high place. It generates exhaust air that blows away.

Further, a control board (not shown) is provided on the side of the electric blower 23 near the rear in the electric vacuum cleaner main body 6, and a control means included in the mounted microcomputer (not shown) is provided in the operation unit 4. By operating the on / off switch 4a, the operation of the electric blower 23 can be controlled by starting the electric blower 23 or stopping the drive of the electric blower 23.

A cord reel (not shown) is provided on the opposite side of the control board, sandwiching the electric blower 23, to wind and hold the power cord. The power cord is pulled out of the main body by pulling out by holding the power plug 12 shown in FIG. The power cord pulled out of the main body is taken up by operating the power cord take-up button 13 shown in FIG. 3 and held in the electric vacuum cleaner main body 6.

(Connection between hose body and vacuum cleaner body)
Next, with reference to FIGS. 7 to 14, the connection between the connection portion 5a of the hose body 5 and the suction port (suction side hose body connection port) 7 and the exhaust port (exhaust side hose body connection port) 81 of the vacuum cleaner body 6 explain.

FIG. 7 (a) is a partial detailed view of the connection portion of the hose body of the electric vacuum cleaner according to the first embodiment of the present invention as viewed from the side of the locking hook, and FIG. 7 (b) is the embodiment of the present invention. A partial detailed view of the connection portion of the hose body of the electric vacuum cleaner according to No. 1 as viewed from the side when the hook for locking is on the upper side, FIG. 7 (c) shows the electric vacuum cleaner according to the first embodiment of the present invention. FIG. 8 is a view of the connection portion of the hose body of the above from the side communicating with the main body, and FIG. 8 shows a suction port (suction side hose body connection port) of the vacuum cleaner main body according to the first embodiment of the present invention. A view from the A direction, FIG. 9 shows a location of a locking hook in which a hose body connection portion is connected to a suction port (suction side hose body connection port) of the vacuum cleaner main body according to the first embodiment of the present invention. 10 is a schematic cross-sectional view showing an example of a connection (connection) state between the third connection terminal and the third connection terminal receiver, which is an enlarged view showing the periphery of the locking hook. a) is a view of the electric vacuum cleaner main body according to the first embodiment of the present invention as viewed from the rear side, and FIG. 11 (b) is a cover covering the exhaust port (exhaust side hose body connection port) in FIG. 11 (a). The figure in a state where the member (exhaust port cover) is opened to expose the exhaust port (exhaust side hose body connection port), FIG. 12A shows the exhaust port (exhaust port) of the electric vacuum cleaner main body according to the first embodiment of the present invention. A perspective view showing a state shortly before connecting the connection portion of the hose body to the hose body connection port on the exhaust side, FIG. 12B is an exhaust port (exhaust side) of the electric vacuum cleaner main body according to the first embodiment of the present invention. A perspective view showing a state in which the connection portion of the hose body is connected to the hose body connection port), FIG. 13 shows the hose body connected to the exhaust port (exhaust side hose body connection port) of the vacuum cleaner main body according to the first embodiment of the present invention. An enlarged view showing the periphery of the locking hook, which is cut at the position of the locking hook by connecting the connecting portion of the above, FIG. 14 shows an exhaust port (exhaust side hose) of the electric vacuum cleaner main body according to the first embodiment of the present invention. An enlarged view showing the periphery of the detection means, in which the connection portion of the hose body is connected to the body connection port) and cut at the detection means, FIG. 15 shows the exhaust port (body connection port) of the electric vacuum cleaner main body according to the first embodiment of the present invention. An external perspective view showing a state in which a hose body to which an attachment with a tip member is connected is connected to an exhaust side hose body connection port), FIG. 16 shows a tube body of the electric vacuum cleaner according to the first embodiment of the present invention. It is a perspective view of the state in which the attachment to which the tip member is attached is connected.

As shown in FIG. 8, a suction port (suction side hose body connection port) 7 is provided in the dust collecting unit accommodating portion 6a on the front side of the vacuum cleaner main body 6. A communication port 7a that communicates with the dust collection unit suction port 31 of the dust collection unit 8 is provided on the back side of the suction port (suction side hose body connection port) 7.

As shown in FIGS. 7 (a) to 7 (c), the connection portion 5a of the hose body 5 is engaged to ensure that the connection portion 5a is connected to the suction port (suction side hose body connection port) 7. A stop hook 61 is provided.

As shown in FIG. 9, the locking hook 61 is provided at the suction port (suction side hose body connection port) 7 when the connection portion 5a is connected to the suction port (suction side hose body connection port) 7. It is engaged with the joint portion 7e.

Further, the locking hook 61 is urged in the direction of engaging with the engaging portion 7e by an urging means 63 such as a spring. When the connection portion 5a is pulled out from the suction port (suction side hose body connection port) 7, the locking release button 62 is pushed against the urging force of the urging means 63, and the locking hook 61 and the engaging portion 7e The engagement with the hose is disengaged, and the connecting portion 5a is pulled out in the direction of the arrow C.

Then, as shown in FIG. 8, at positions below the communication port 7a of the suction port (suction side hose body connection port) 7, a first connection terminal insertion hole 7b, a second connection terminal insertion hole 7c, A third connection terminal insertion hole 7d is provided.

Further, as shown in FIGS. 7A to 7C, the connection portion 5a of the hose body 5 is connected to a first connection terminal 51 and a second connection terminal 51 for electrically connecting to the vacuum cleaner main body 6. A terminal 52 and a third connection terminal 53 are provided.

When the connection portion 5a is connected to the suction port (suction side hose body connection port) 7, the first connection terminal 51 is inserted into the first connection terminal insertion hole 7b, and the second connection terminal 52 is inserted into the second connection terminal. The third connection terminal 53 is inserted into the hole 7c and the third connection terminal 53 is inserted into the third connection terminal insertion hole 7d.

The state in which the third connection terminal 53 is inserted into the third connection terminal insertion hole 7d will be described in detail with reference to FIG. When the third connection terminal 53 is inserted into the third connection terminal insertion hole 7d, it is connected to the third connection terminal receiver 7f provided at the back of the third connection terminal insertion hole 7d.

The third connection terminal receiver 7f has a structure in which the third connection terminal 53 is press-fitted and held, and the third connection terminal 53 can be inserted and removed. Although not shown, similarly, when the first connection terminal 51 is inserted into the first connection terminal insertion hole 7b, it is connected to the first connection terminal receiver provided at the back of the first connection terminal insertion hole 7b. When the second connection terminal 52 is inserted into the second connection terminal insertion hole 7c, it is connected to the second connection terminal receiver provided at the back of the second connection terminal insertion hole 7c.

Like the third connection terminal receiver 7f, the first connection terminal receiver and the second connection terminal receiver also have a structure in which the first connection terminal 51 and the second connection terminal 52 are press-fitted and held, respectively. It can be inserted and removed.

The first connection terminal receiver is connected to the signal wiring of the control board by a connection line (not shown). The signal wiring is usually at the same level as the voltage at which the microcomputer is operated, and is, for example, a 5V energized wiring.

The first connection terminal 51 is connected to the on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c of the operation unit 4, and when the first connection terminal 51 is connected to the first connection terminal receiver, The on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c are connected to the signal wiring of the control board.

The second connection terminal receiver is connected to the reference potential wiring of the control board by a connection line (not shown). The reference potential is usually 0 V, and the reference potential wiring is a common wiring with the signal wiring line and the power wiring.

The second connection terminal 52 is connected to the on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c of the operation unit 4, and when the second connection terminal 52 is connected to the second connection terminal receiver, The on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c are connected to the reference potential wiring of the control board.

When the first connection terminal 51 is connected to the first connection terminal receiver and the second connection terminal 52 is connected to the second connection terminal receiver, the on / off switch 4a can turn on / off the electric blower 23, and the output is variable. The output of the electric blower 23 can be changed by the switch 4b.

The third connection terminal receiver is connected to the power wiring of the control board by a connection line (not shown). In the vacuum cleaner 100 according to the embodiment of the present invention, the power wiring is a 100V line because it is used with a commercial power supply of 100V.

When the attachment 15 of the present invention is connected, the third connection terminal 53 is not connected to the power wiring and is not used as the power wiring. When the suction tool 1 is connected, the electric power wiring is used as an electric motor for the rotary brush that drives the rotary brush housed in the suction tool 1 via the rotary brush drive switch 4c of the operation unit 4. When the third connection terminal 53 is connected to the third connection terminal receiver 7f, the power wiring of the control board and the power supply wiring are connected so that the electric motor for the rotating brush can receive power supply. Become.

When the second connection terminal 52 is connected to the second connection terminal receiver and the third connection terminal 53 is connected to the third connection terminal receiver 7f, the rotary brush drive switch 4c operates the electric motor for the rotary brush. The rotating brush can be driven.

When the attachment 15 of the present invention is connected, the rotary brush drive switch 4c is not electrically connected because the attachment 15 does not have an electric motor for the rotary brush, and no input is accepted even if the attachment 15 is operated.

Next, as shown in FIG. 11B, an exhaust port (exhaust side hose body connection port) 81 is provided on the rear side of the vacuum cleaner main body 6. Similar to the suction port (suction side hose body connection port) 7, the exhaust port (exhaust side hose body connection port) 81 can be connected to the connection portion 5a of the hose body 5.

On the back side of the exhaust port (exhaust side hose body connection port) 81, a main body exhaust port 28 is provided to discharge the sucked air (suction air) as exhaust air. The main body exhaust port 28 is covered with a cover member (exhaust port cover) 71 when the hose body 5 is connected to the suction port (suction side hose body connection port) 7.

The cover member (exhaust port cover) 71 is provided with a ventilation hole 71a so that exhaust air can be discharged from the vacuum cleaner main body 6 even when the cover member (exhaust port cover) 71 is covered.

The cover member (exhaust port cover) 71 is locked to the vacuum cleaner main body 6 at an engaging portion (not shown), and is engaged when the cover unlocking lever 72 is pulled upward (when the floor surface is facing down). It can be opened out of the way.

The cover unlocking lever 72 is urged downward by an urging means such as a spring (not shown) when the floor surface is facing down. The cover member (exhaust port cover) 71 is adapted to open upward as shown in FIG. 11B by a flow of pulling the cover unlocking lever 72 upward.

Further, as shown in FIG. 11B, a fourth connection terminal insertion hole 81a and a fifth connection terminal are located above the main body exhaust port 28 of the exhaust port (exhaust side hose body connection port) 81. An insertion hole 81b and a sixth connection terminal insertion hole 81c are provided.

When connecting the connection portion 5a of the hose body 5 to the exhaust port (exhaust side hose body connection port) 81, the direction is rotated 180 degrees as compared with the case of connecting to the suction port (suction side hose body connection port) 7. As shown in FIG. 12A, the locking hook 61 and the locking release button 62 are facing upward, and when they are inserted as they are, they are connected as shown in FIG. 12B.

Then, the attachment 15 to which the tip member 16 described later shown in FIG. 15 is attached, the extension pipe 2, the flexible soft pipe 5b connected to the pipe body 3 including the operation portion 4 and the hand handle portion 3a, and further. It is in a state of being connected to the exhaust port (exhaust side hose body connection port) 81 on the rear side of the vacuum cleaner main body 6 via the flexible soft pipe 5b and the connection portion 5a, and the air blow function can be used at a high place. Become.

Assuming an air blow at a high place, the description was made with the attachment 15 connected to the extension pipe 2 as shown in FIG. 15, but the extension pipe 2 was not connected as shown in FIG. Even if the attachment 15 is directly connected to the pipe body 3 provided with the hand handle portion 3a, it can be used as an air blow.

As shown in FIG. 13, the locking hook 61 is provided at the exhaust port (exhaust side hose body connection port) 81 when the connection portion 5a is connected to the exhaust port (exhaust side hose body connection port) 81. It is engaged with the engaging portion 81d.

Since the locking hook 61 is urged by the urging means 63 in the direction of engaging with the engaging portion 81d, it is attached when the connecting portion 5a is pulled out from the exhaust port (exhaust side hose body connecting port) 81. When the locking release button 62 is pushed against the urging force of the force means 63, the locking hook 61 and the engaging portion 81d are disengaged, so that the connecting portion 5a can be pulled out in the direction of the arrow D. ..

When the connection portion 5a is connected to the exhaust port (exhaust side hose body connection port) 81, the first connection terminal 51 is inserted into the fourth connection terminal insertion hole 81a, and the second connection terminal 52 is inserted into the fifth connection terminal. The third connection terminal 53 is inserted into the hole 81b and the third connection terminal 53 is inserted into the sixth connection terminal insertion hole 81c.

Although not shown, the first connection terminal insertion hole 7b, the second connection terminal insertion hole 7c, and the third connection terminal are inserted behind the fourth connection terminal insertion hole 81a and the fifth connection terminal insertion hole 81b. Similar to the hole 7d, a connection terminal receiver having a structure for press-fitting and holding the connection terminal is provided.

A fourth connection terminal receiver is provided behind the fourth connection terminal insertion hole 81a, a fifth connection terminal receiver is provided behind the fifth connection terminal insertion hole 81b, and the first connection terminal 51 is provided. When inserted into the fourth connection terminal insertion hole 81a, it is connected to the fourth connection terminal receiver provided at the back of the fourth connection terminal insertion hole 81a, and the second connection terminal 52 becomes the fifth connection terminal. When inserted into the insertion hole 81b, it is connected to a fifth connection terminal receiver provided at the back of the fifth connection terminal insertion hole 81b.

The fourth connection terminal receiver and the fifth connection terminal receiver are also the same as the first connection terminal receiver, the second connection terminal receiver, and the third connection terminal receiver 7f of the suction port (suction side hose body connection port) 7. , The first connection terminal 51 and the second connection terminal 52 are press-fitted and held, respectively, and can be inserted and removed.

The fourth connection terminal receiver is connected to the signal (5V) wiring of the control board by a connection line (not shown). As described above, the first connection terminal 51 is connected to the on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c of the operation unit 4, and the first connection terminal 51 is connected to the fourth connection terminal receiver. Then, the on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c are connected to the signal wiring of the control board.

The second connection terminal receiver is connected to the reference potential (0V) wiring of the control board by a connection line (not shown). When the second connection terminal 52 is connected to the on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c of the operation unit 4, and the second connection terminal 52 is connected to the fifth connection terminal receiver, The on / off switch 4a, the output variable switch 4b, and the rotary brush drive switch 4c are connected to the reference potential wiring (second reference potential wiring) of the control board.

When the first connection terminal 51 is connected to the fourth connection terminal receiver and the second connection terminal 52 is connected to the fifth connection terminal receiver, the on / off switch 4a can turn on / off the electric blower 23, and the output is variable. The output of the electric blower 23 can be changed by the switch 4b.

Unlike other connection terminal insertion holes, a connection terminal receiver is not provided at the back of the sixth connection terminal insertion hole 81c. That is, when the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81, the third connection terminal 53 is not electrically connected to the control board.

However, as shown in FIG. 15, when the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81 to use the air blow function, the suction tool 1 is not connected, so that the suction tool 1 is not connected. It is not necessary to drive the rotating brush housed in 1.

Therefore, when the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81, it is not necessary to electrically connect the third connection terminal 53 to the control board, and the sixth connection is made. A connection terminal receiver electrically connected to the control board is not provided behind the terminal insertion hole 81c.

Although it has been explained here that the connection terminal receiver electrically connected to the control board is not provided because the third connection terminal 53 is not electrically connected to the control board, it is electrically connected to the control board. A connection terminal receiver (sixth connection terminal receiver) that is not provided may be provided.

When the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81, the third connection terminal 53 is connected to the control board instead of being electrically connected to the control board. The detection means 73 shown in FIG. 14 is connected by a wiring (not shown).

The detection means 73 detects whether or not the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81, and is attached to the back of the sixth connection terminal insertion hole 81c. There is.

The detection means 73 is, for example, a hinged microswitch, in which the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81, and the third connection terminal 53 inserts the sixth connection terminal. The hinge of the micro switch is pushed while being inserted into the hole 81c.

When the hinge of the micro switch is pushed, the micro switch is turned on, and the control means included in the control board is connected to the connection portion 5a of the hose body 5 to the exhaust port (exhaust side hose body connection port) 81. Is detected.

The third connection terminal 53 is an important terminal for detecting whether or not the detection means 73 is connected when the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81. Therefore, as shown in FIG. 7A, it is arranged at the position closest to the locking hook 61. As a result, the third connection terminal 53 is securely held, and stable detection is possible.

This also applies when the connection portion 5a is connected to the suction port (suction side hose body connection port) 7, and the third connection terminal 53 connects the connection portion 5a of the hose body 5 to the suction port (suction side hose body connection port). When connected to the port), it is connected to the power (100V) wiring of the control board, so that the third connection terminal 53 is surely maintained to be connected to the power wiring of 100V.

In this way, regardless of whether the connection portion 5a of the hose body 5 is connected to the suction port (suction side hose body connection port) 7 or the exhaust port (exhaust side hose body connection port) 81, the on / off switch 4a of the operation unit 4 The electric blower 23 can be turned on and off, and the output of the electric blower 23 can be changed by the output variable switch 4b.

Therefore, when the connection portion 5a of the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81 and used as an air blow, the strength of the exhaust air can be changed according to the object to be blown off, which is convenient for the user. improves.

(Air flow, main body operation)
Next, the air flow and operation will be described with reference to FIG. The air flow and operation are as follows: when the hose body 5 is connected to the front side of the electric vacuum cleaner main body 6, the suction port (suction side hose body connection port) 7, and the rear side of the electric vacuum cleaner main body 6 described later, exhaust. Each case of being connected to the port (exhaust side hose body connection port) 81 will be described. Then, although it is refused in advance, the hose body 5 is omitted from FIG. 4 for convenience.

First, when the hose body 5 is connected to the suction port (suction side hose body connection port) 7, in other words, cleaning is performed, but when the on / off switch 4a of the operation unit 4 provided on the tube body 3 is operated, , The electric blower 23 is driven.

As a result, for example, when dust at a high place is sucked together with air from the second opening 15c of the attachment 15 described later, the air containing the dust passes through the extension pipe 2, the pipe body 3, and the hose body 5. It is sucked into the dust collecting unit 8 from the dust collecting unit suction port 31 communicating with the communication port 7a.

The air containing the dust sucked into the dust collecting unit 8 swirls downward from above while centrifuging the dust at the swirling portion 33 and descends. In the process, relatively large dust is discharged from the dust discharge port a34 into the dust collection chamber 32, and further swirls toward the inverted conical lower end of the swivel portion 33 to discharge small fine dust into the dust discharge port. It is discharged from b35 into the dust collecting chamber 32.

The air from which the dust has been separated rises in the swirl portion 33, passes through a plurality of small holes provided in the exhaust stack 36, is sucked from the dust collection unit discharge port 37 into the main body suction port 25, and is sucked into the main body suction port 25, and is on the electric vacuum cleaner main body 6 side. Is sucked into.

The air sucked into the electric vacuum cleaner main body 6 may contain fine dust that could not be separated by the dust collecting unit 8, so that the electric blower 23 does not malfunction due to the fine dust. Before being sucked by the electric blower 23, it passes through the intake side filter 26 to collect fine dust. The intake side filter 26 is composed of a HEPA filter, which has a high dust collection efficiency.

After passing through the intake side filter 26 and being sucked by the electric blower 23, the air discharged from the electric blower 23 further passes through the exhaust side filter 27 before being discharged to the outside of the electric vacuum cleaner main body 6.

The exhaust side filter 27 is composed of a ULPA filter, which has a higher dust collection efficiency than a HEPA filter. This is for cleaning the air discharged to the outside of the electric vacuum cleaner main body 6.

The air that has passed through the exhaust side filter 27 passes near the bottom surface of the electric vacuum cleaner main body 6, passes through the main body exhaust port 28, and is a cover member (exhaust port cover) 71 provided so as to cover the main body exhaust port 28. It passes through the ventilation hole 71a (see FIG. 11a) and is discharged to the outside of the electric vacuum cleaner main body 6.

Next, when the hose body 5 is connected to the exhaust port (exhaust side hose body connection port) 81, as described above, as in the case where the hose body 5 is connected to the suction port (suction side hose body connection port) 7. Since the on / off switch 4a of the operation unit 4 provided on the pipe body 3 is electrically connected, the electric blower 23 is driven by operating the on / off switch 4a.

By driving the electric blower 23, air is directly sucked from the suction port (suction side hose body connection port) 7 to which the hose body 5 is not connected. Since the suction port (suction side hose body connection port) 7 is located away from the floor surface, fine dust that floats in the air may be sucked, but basically clean air is sucked. To.

The air sucked from the suction port (suction side hose body connection port) 7 does not need to separate dust, but it communicates with the suction port (suction side hose body connection port) 7 as in the case of cleaning. The dust is sucked into the dust collection unit 8 from the dust collection unit suction port 31 that communicates with the port 7a and the communication port 7a.

The subsequent air flow is the same as when it is connected to the suction port (suction side hose body connection port) 7, so detailed explanation is omitted, but it passes through the dust collection unit 8 and the electric vacuum cleaner main body 6 is moved. It passes through and reaches the main body exhaust port 28.

The air that has reached the main body exhaust port 28 is sent as exhaust air to the hose body 5 connected from the exhaust port (exhaust side hose body connection port) 81, and passes through the pipe body 3 and the extension pipe 2 shown in FIG. It is discharged from the second opening 15c of the attachment 15 described later, and dust and the like can be blown off as an air blow.

(Attachment configuration)
Next, with reference to FIGS. 17 to 27, the configuration of the attachment 15 used in the vacuum cleaner of the first embodiment of the present invention and the tip member 16 attached to the attachment 15 will be described in detail.

FIG. 17 is a perspective view of an attachment to which the tip member of the vacuum cleaner according to the first embodiment of the present invention is attached, and FIG. 18 is an extension of the attachment to which the tip member of the vacuum cleaner according to the first embodiment of the present invention is attached. A side view of the state as seen from one side, FIG. 19 is a side view of an internal air passage member constituting an attachment of the vacuum cleaner according to the first embodiment of the present invention, and FIG. 20 is a side view of the first embodiment of the present invention. The internal air passage member of the attachment of the vacuum cleaner according to FIG. 19 is viewed from the direction E shown in FIG. 19, and FIG. 21 (a) shows a single tip member of the vacuum cleaner according to the first embodiment of the present invention in the side direction. 21 (b) is a perspective view of the tip member of the vacuum cleaner according to the first embodiment of the present invention as viewed from above, with the fluff facing up, and FIG. 22 is a perspective view from which the inner surface can be seen. A side view of a main part in a state where the tip member of the vacuum cleaner according to the first embodiment of the present invention is removed from the attachment, FIG. 23 (a) shows the tip member of the vacuum cleaner according to the first embodiment of the present invention attached. A view of the extended state of the attachment from above, FIG. 23 (b) shows a side view of the extended state of the attachment to which the tip member of the vacuum cleaner according to the first embodiment of the present invention is attached. FIG. 24 is a cross-sectional view cut along the cutting line FF shown in FIG. 23 (b), and FIG. 25 is a side view of the state in which the tip member is rotated from the state of FIG. 23 (b) as viewed from the other side surface. 26 (a) is a cross-sectional view of the main part cut along the cutting line GG shown in FIG. 23 (a), and FIG. 26 (b) is a cross-sectional view of the main part in a state where the tip member is rotated from the state of FIG. 26 (a). FIG. 27 is a view of an attachment to which the tip member of the vacuum cleaner according to the first embodiment of the present invention is attached, as viewed from the H direction shown in FIG. 23 (b), and FIG. 28 shows the attachment held by an extension pipe. It is a perspective view of the state.

As shown in FIG. 17, the attachment 15 used in the vacuum cleaner according to the first embodiment of the present invention is provided with a first opening (not shown) at one end and a second opening 15c (FIG. 17) at the other end, which will be described later. 25 (a), FIG. 25 (b), and FIG. 26) are provided, and a second opening (see FIG. 24) is provided to communicate the first opening and the second opening 15c. The tip member 16 is attached to the opening 15c side of the.

The first opening of the attachment 15 is an opening connected to the extension pipe 2 as shown in FIGS. 1 and 2 or the pipe body 3 as shown in FIG. The second opening 15c of the attachment 15 is an opening for sucking air containing dust or discharging the exhaust air of an air blow that blows away the dust and the like, which will be described later.

The attachment 15 is stretchable and can be stretched from the basic state shown in FIG. 17 as shown in FIG. The attachment 15 includes an internal air passage member 15a that mainly constitutes an air passage in a basic state (state shown in FIG. 17) and an external air passage member slidably provided on the outside of the outer shell of the internal air passage member 15a. It is composed of 15b.

As described above, in the basic state (state shown in FIG. 17), the internal air passage member 15a is mainly the air passage, but when the external air passage member 15b is slid and the attachment 15 is extended, the external air passage is extended. The member 15b is adapted to form an extended air passage.

The first opening described above is formed in the external air passage member 15b, and the second opening 15c is formed in the internal air passage member 15a. In the basic state (state shown in FIG. 17), most of the internal air passage member 15a is housed in the external air passage member 15b, but a part near the second opening 15c is the external air passage member. It is not housed in 15b and is exposed to the outside, and its outer shell serves as a mounting location for the tip member 16.

That is, the attachment 15 is composed of the internal air passage member 15a and the external air passage member 15b, the first opening is formed in the external air passage member 15b, and the first opening of the external air passage member 15b is the extension pipe 2. , Or is connected to the tube body 3.

Further, the second opening 15c is formed in the internal air passage member 15a, and the tip member 16 is attached to a part of the outer shell near the second opening 15c that is not accommodated in the external air passage member 15b and is exposed to the outside. ing.

In the vacuum cleaner of the first embodiment of the present invention, the example in which the tip member 16 is attached to the internal air passage member 15a of the attachment 15 has been described, but the present invention is not limited to this configuration. The first opening is formed in the internal air passage member 15a so as to be connected to the extension pipe 2 or the pipe body 3, and the second opening 15c is formed in the external air passage member 15b to form the external air passage member 15b. The tip member 16 is attached to the outer shell from the second opening 15c, and the air containing dust is sucked from the second opening 15c formed in the external air passage member 15b, or the exhaust air of the air blow that blows off the dust and the like is discharged. It is also possible to configure it to do so.

When the internal air passage member 15a is viewed from the direction E shown in FIG. 19, a second opening 15c is provided at the end as shown in FIG. The side surface portion of the internal air passage member 15a is not provided with an opening or a hole for communicating the air passage and the external space. The openings of the internal air passage member 15a are only a second opening 15c provided at one end in the longitudinal direction and an opening (not shown) provided at the other end of the side housed in the external air passage member 15b.

A rotating shaft 17 is provided on the outer shell of the internal air passage member 15a at a position closer to the second opening 15c. The rotating shaft 17 is for rotatably supporting the tip member 16 described later. The rotating shaft 17 projects on both outer sides in a direction orthogonal to the longitudinal direction of the internal air passage member 15a as shown in FIG.

Further, as shown in FIG. 19, an arc-shaped rib 19 concentric with the center of the axis of the rotating shaft 17 is provided on the outer shell of the internal air passage member 15a at a position closer to the second opening 15c. The role of the arcuate rib 19 will be described later.

Further, on the outer shell of the internal air passage member 15a at a position closer to the second opening 15c, protrusions 18 are provided on both outer sides in the same direction as the rotation shaft 17 protrudes. The role of the protrusion 18 will also be described later.

The tip member 16 attached to the internal air passage member 15a of the attachment 15 is formed by a first side wall 16a, a second side wall 16b, and a side wall connecting portion 16c as shown in FIGS. 21A and 21B. The tip member 16 has a U-shape in which the first side wall 16a and the second side wall 16b arranged so that the inner surfaces face each other are connected via the side wall connecting portion 16c.

The tip member 16 is made of a resin having a certain degree of flexibility, such as ABS (acrylonitrile butadiene styrene) or PP (polypropylene), and the first side wall 16a and the second side wall 16b have a side wall connecting portion 16c. Since the first side wall 16a and the second side wall 16b are connected to each other in a U shape, it is possible to bend the first side wall 16a and the second side wall 16b from the portion where the side wall connecting portion 16c is connected.

The first side wall 16a and the second side wall 16b are provided with bearing holes 16d that are fitted to the rotation shaft 17 of the internal air passage member 15a, respectively. When fitting the bearing hole 16d to the rotating shaft 17 of the internal air passage member 15a, first, the tip member 16 formed in a U shape by the first side wall 16a, the second side wall 16b, and the side wall connecting portion 16c. A load is applied to the first side wall 16a and the second side wall 16b so that the inner walls of the first side wall 16a and the second side wall 16b expand beyond the tip of the rotation shaft 17 of the internal air passage member 15a. It is bent in a direction (J1 and J2 directions shown in FIG. 24).

From the bent state, move toward the internal air passage member 15a in the direction of the arrow shown in FIG. 22 so as to cover the tip member 16 to the position where the bearing hole 16d is fitted to the rotating shaft 17, and then move the rotating shaft 17 and the bearing. When the load is stopped at the position where the holes 16d overlap, the deflection returns to the original state, and the bearing hole 16d is fitted to the rotating shaft 17 and cannot be pulled out. The tip member 16 rotates around the internal air passage member 15a. It will be movably supported and attached.

As described above, the outer shell (see FIG. 22) of the internal air passage member 15a provided with the rotating shaft 17 at a position closer to the second opening 15c has an opening or a hole for communicating the air passage and the external space. Not provided.

Therefore, since the rotating shaft 17 is not deformed or bent due to the influence of openings, holes, etc., the tip member 16 can be stably rotated. Further, since the rotating shaft 17 is not deformed or bent, the first side wall 16a and the second side wall 16b of the tip member 16 are bent and attached when the tip member 16 is attached. ..

When removing the tip member 16, similarly, if the inner walls of the first side wall 16a and the second side wall 16b are bent outward so as to expand beyond the tip of the rotation shaft 17 of the internal air passage member 15a, the tip member 16 is removed. Good.

As shown in FIG. 21, engaging holes 16e and 16f are provided in the first side wall 16a and the second side wall 16b of the tip member 16, respectively. The engaging holes 16e and 16f are for engaging with the above-mentioned protruding portion 18 provided on the outer shell at a position closer to the second opening 15c of the internal air passage member 15a and restricting the rotation of the tip member 16. is there.

The centers of the engagement holes 16e and 16f are concentric circles (as virtual circles 90 in FIG. 25) that are at a constant same distance from the center of the rotation shaft 17 with the tip member 16 attached to the internal air passage member 15a. (Show) is provided above.

The virtual circle 90 shown in FIG. 25 is a circle that overlaps with the virtual circle 91 shown in FIG. The virtual circle 91 passes through the center of the protrusion 18 at a certain distance from the center of the rotation shaft 17. Therefore, as a matter of course, the engaging holes 16e and 16f are located concentrically with the protruding portion 18 in a state where the tip member 16 is attached to the internal air passage member 15a.

The state in which the protruding portion 18 and the engaging hole 16e are engaged is the state shown in FIG. 23 (b), and the position restricted to this state is the basic position of the tip member 16.

The side wall joint portion 16c of the tip member 16 is provided with convex finger hook portions 16k and 16m. From the state shown in FIG. 23 (b), when a finger is placed on the finger hook portion 16k shown in FIG. 26 (a) and a force is applied in the K direction, the tip member 16 rotates as shown in FIG. 26 (b).

When a finger is applied to the finger hook portion 16k of the tip member 16 and a force is applied, the first side wall 16a is in the J1 direction and the second side wall is in the J1 direction from the state where the engagement hole 16e is engaged with the protrusion 18 shown in FIG. The 16b bends in the J2 direction, the protruding portion 18 and the engaging hole 16e are disengaged, and the tip member 16 rotates about the rotation shaft 17. The finger hooks 16k and 16m make it easy to apply the force of the finger and make it easy to understand the position where the force is applied, so that the tip member 16 can be easily rotated.

The rotating tip member 16 is restricted from rotating by engaging the engaging hole 16f with the protruding portion 18. The state in which the engaging hole 16f is engaged with the protruding portion 18 and the rotation is restricted is the state shown in FIGS. 25 and 26 (b).

By rotating the tip member 16 in this way, for example, when the attachment 15 is connected when used as an air blow, the tip member 16 is blown out so as to go straight in the longitudinal direction of the attachment 15 as shown in FIG. 26 (a). The blowing direction of the exhaust air can be bent as shown in FIG. 26 (b) to blow out. As a result, the direction in which the exhaust air is blown out can be changed when dust or the like is blown off at a high place, and the usability of the user is improved.

In the embodiment of the present invention, two engaging holes 16e and 16f are provided on the concentric circles (virtual circles 90), but additional engaging holes may be added. For example, if the engaging holes 16e and 16f are provided near the concentric circles (virtual circles 90), the tip member 16 is in the process of rotating from the position shown in FIG. 26 (a) to the position shown in FIG. 26 (b). The rotation can be regulated at the position of, and a plurality of exhaust air blowing directions can be selected, which further improves the usability of the user.

As described above, the internal air passage member 15a to which the tip member 16 is attached is not provided with any openings or holes other than the second opening 15c for communicating the air passage and the external space. Therefore, FIG. 26A shows. All of the discharged air flowing as shown is blown out from the second opening 15c so as to travel straight in the longitudinal direction of the attachment 15, and the discharged air can be efficiently used without air leakage.

The exhaust air flowing as shown in FIG. 26A actually hits the inner wall of the side wall joint portion 16c and the flow is disturbed, but the engagement hole 16f is engaged with the protruding portion 18 to restrict the rotation. In the state shown in (b), the regulation rib 16g shown in FIG. 21 (b) and the upper end 15d of the second opening shown in FIG. 20 provided on the inner wall of the side wall connecting portion 16c are as shown in FIG. 26 (b). The space 40 formed between the attachment 15 and the tip member 16 is closed.

As a result, it is possible to regulate the ventilation of the exhaust air to the space 40 formed between the attachment 15 and the tip member 16, and it is possible to suppress the air leakage. Therefore, the air leakage is suppressed in the direction shown in FIG. 26A. The exhaust air can be blown out.

The tip member 16 can be returned from the state shown in FIG. 25 to the state shown in FIG. 23 (b) by putting a finger on the finger hook portion 16 m shown in FIG. 26 (b) and applying a force in the L direction.

Next, as shown in FIG. 26A, when the tip member 16 is in the basic position, the space formed between the upper part of the outer shell of the internal air passage member 15a of the attachment 15 and the inner wall of the side wall connecting portion 16c. The arcuate rib 19 is provided so as to fit in the space.

As shown in FIG. 19, the arcuate rib 19 is an arc that is a part of a virtual circle 92 at a certain distance from the center of the rotation shaft 17. The arcuate rib 19 regulates the space formed between the upper part of the outer shell of the internal air passage member 15a and the inner wall of the side wall joint portion 16c so that a finger does not enter.

If there is no arcuate rib 19, a finger is inserted into the space formed between the upper part of the outer shell of the internal air passage member 15a and the inner wall of the side wall connecting portion 16c, and the tip member 16 is rotated to pinch the finger. There is a risk of injury. The arcuate rib 19 is for restricting the finger from entering the space between the upper part of the outer shell of the internal air passage member 15a and the inner wall of the side wall connecting portion 16c so as not to pinch the finger and cause injury. Is.

Further, since the arcuate rib 19 is an arc that is a part of a circle at a certain distance from the center of the rotation shaft 17, when the tip member 16 rotates about the rotation shaft 17, FIG. 26A ), (B), since the regulation rib 16g rotates along the arcuate rib 19, the tip member 16 can rotate stably.

Next, as shown in FIG. 26A, flocking 16j is provided at the end of the tip member 16 on the side of the second opening 15c. As shown in FIGS. 21 and 27, the flocked 16j is formed by connecting the end portion of the tip member 16 on the side of the second opening 15c, specifically, the first side wall 16a and the second side wall 16b as described above. A plurality of U-shaped end portions (second opening side) 16h connected via the portion 16c are provided. The material of the flocked hair 16j is not particularly limited, and horsehair, other animal hair, and nylon can be used, and the length and hardness can be appropriately selected.

The flocked 16j is for scraping off sticky dust and the like that cannot be sucked by suction or blown off by air blow when cleaning a high place or the like or air blowing. By scraping the dust and the like stuck by the flocking 16j, the scraped dust can be sucked or blown off, so that the cleaning property and the effect of the air blow can be improved.

As shown in FIG. 27, the plurality of flocked hairs 16j do not overlap with the second opening 15c so as to surround the second opening 15c at the U-shaped end (second opening side) 16h of the tip member 16. It is provided as follows. Therefore, when the exhaust air is blown out as an air blow in the state where the tip member 16 is in the basic position shown in FIG. 23 (b), the exhaust air is blown out from the second opening 15c so as to go straight in the longitudinal direction of the attachment 15. The air can be used efficiently without being disturbed by the flocked 16j.

Further, when the tip member 16 shown in FIG. 23B is used as a normal vacuum cleaner 100 in the basic position, the dust contained in the suction air sucked from the second opening 15c is removed. , It becomes difficult to get entangled with the flocked 16j.

When the attachment 15 to which the tip member 16 is attached is not used, it is held by engaging the holding piece engaging portion 15e with the holding piece 2a provided on the extension pipe 2 as shown in FIG. 28, so that it is difficult to place the attachment 15. It will never happen, and you can prevent it from being misplaced somewhere.

Embodiment 2.
(Shape of tip member)
The vacuum cleaner according to the second embodiment of the present invention has the same configuration as the vacuum cleaner according to the first embodiment of the present invention, except that the shape of the tip member is different from that of the vacuum cleaner according to the first embodiment. Is.

Therefore, here, the shape of the tip member different from the vacuum cleaner according to the first embodiment will be described with reference to FIG. 29, and other description will be omitted. FIG. 29 (a) is a side view of the attachment to which the tip member of the vacuum cleaner according to the second embodiment of the present invention is attached, as viewed from one side, and FIG. 29 (b) is the tip from the state of FIG. 29 (a). A side view of the member rotated 180 degrees, FIG. 30 is a perspective view of the tip member of the vacuum cleaner according to the second embodiment of the present invention.

As shown in FIG. 30, the tip member 96 attached to the attachment 15 of the vacuum cleaner according to the second embodiment of the present invention is formed by a first side wall 96a, a second side wall 96b, and a side wall joint 96c. The tip member 96 has a U-shape in which a first side wall 96a and a second side wall 96b arranged so that their inner surfaces face each other are connected via a side wall connecting portion 96c.

As shown in FIG. 29, the first side wall 96a and the second side wall 96b of the tip member 96 are rectangular when viewed from the side surface, and the long side of the rectangle is parallel to the longitudinal direction of the attachment 15. ..

A bearing hole 96d is provided in the second side wall 96b of the tip member 96. Although not shown, a bearing hole 96d is also provided in the first side wall 96a facing the second side wall 96b. The bearing hole 96d of the first side wall 96a is provided at a position where the second side wall 96b overlaps with the projection surface when viewed from the side surface direction.

The shape of the attachment 15 of the vacuum cleaner according to the second embodiment of the present invention is the same except that the attachment 15 of the vacuum cleaner according to the first embodiment and the protrusion 18 are not provided, and the rotating shaft 17 is the same. It is provided.

In the second embodiment of the present invention, the first side wall 96a and the second side wall 96b are described as rectangular, but the present invention is not limited to this, and the second side wall 96b may be square.

The attachment of the tip member 96 to the attachment 15 is the same as the attachment of the tip member 16 of the first embodiment, the tip formed in a U shape by the first side wall 96a, the second side wall 96b, and the side wall joint 96c. A load is applied to the first side wall 96a and the second side wall 96b of the member 96 so that the inner walls of the first side wall 96a and the second side wall 96b extend beyond the tip of the rotation shaft 17 of the attachment 15. Bend in the direction.

When the load is stopped by covering the attachment 15 with the rotating shaft 17 and the bearing hole 96d so as to overlap each other from the bent state, the bending returns to the original state, and the bearing hole 96d comes off with the bearing hole 96d fitted to the rotating shaft 17. The tip member 96 is rotatably supported and attached to the attachment 15.

The regulation means for maintaining this state will not be particularly described, but the state shown in FIG. 29A is the basic position of the tip member 96, and the state is maintained at this position by the releaseable regulation means. The tip member 96 can be deregulated from this maintenance and rotated 180 degrees from the basic position as shown in FIG. 29 (b), and can be maintained by a deregulating means that can be deregulated at this position. is there.

As shown in FIGS. 29 (a) and 29 (b), a plurality of flocked 96j1 are provided at the end 96h1 on the short side side of the rectangle. A plurality of flocked 96j2 are provided on the end 96h2, which is another short side facing the end 96h1. The flocked 96j1 and the flocked 96j2 have different lengths.

At the basic position of the tip member 96, as shown in FIG. 29 (a), the end on the extension line of the attachment 15 is the end 96h1 of the tip member 96, and a plurality of short flocked 96j1 provided on the end 96h1 are used. It is possible.

When the tip member 96 is rotated 180 degrees, the end portion on the extension line of the attachment 15 becomes the end portion 96h2 as shown in FIG. 29B, and a plurality of long flocked 96j2 provided on the end portion 96h2 can be used. Become.

Although not shown, at the basic position of the tip member 96, the plurality of short flocked 96j1s do not overlap the second opening 15c at the U-shaped end 96h1 of the tip member 96 so as to surround the second opening 15c. It is provided as follows. Therefore, when the exhaust air is blown out as an air blow while the tip member 96 is in the basic position, the exhaust air blown out from the second opening 15c so as to go straight in the longitudinal direction of the attachment 15 is a plurality of short flocked 96j1. It can be used efficiently without being disturbed by.

Similarly, although not shown, at a position where the tip member 96 is rotated 180 degrees, the plurality of long flocked 96j2 have a second opening 15c at the U-shaped end 96h2 of the tip member 96 so as to surround the second opening 15c. It is provided so as not to overlap with the opening 15c. Therefore, when the exhaust air is blown out as an air blow in a state where the tip member 96 is rotated 180 degrees from the basic position, the exhaust air blown out straight from the second opening 15c in the longitudinal direction of the attachment 15. Can be used efficiently without being disturbed by the flocked 96j2.

By rotating the tip member 96 by 180 degrees in this way, the short flocking 96j1 and the long flocking 96j2 can be used properly depending on the application and the situation, and the user can be provided with a plurality of types of flocking lengths, thus improving usability. Can be planned.

The material of the flocked 96j1 and the flocked 96j2 is not particularly limited, and horsehair, other animal hair, and nylon can be used, and the length and hardness can be appropriately selected. For example, the flocked 96j1 and the flocked 96j2 have the same length, the flocked 96j2 has different hardness so as to be a softer material than the flocked 96j1, and the flocked 96j1 and the softer flocked 96j2 are used properly depending on the application and the situation. It is possible to provide the user with a plurality of types of flocking hardness, so that usability can be improved.

As a matter of course, even if the flocked 96j1 and the flocked 96j2 have different lengths and different hardnesses depending on the application and situation, it is possible to provide the user with a plurality of types of flocked hardness, so that the usability can be improved.

1 Suction tool, 2 Extension tube, 2a Holding piece, 3 Tube body, 3a Hand handle part, 4 Operation part, 4a On / off switch, 4b Output variable switch, 4c Rotating brush drive switch, 5 Hose body, 5a Connection part, 5b Possible Flexible soft tube, 6 Vacuum cleaner body, 6a Dust collection unit housing, 7 Suction port (suction side hose body connection port), 7a Communication port, 7b 1st connection terminal insertion hole, 7c 2nd connection terminal insertion Hole, 7d 3rd connection terminal insertion hole, 7e engaging part, 7f 3rd connection terminal receiver, 8 dust collecting unit (dust collecting part), 8a handle (finger hook) part, 9 handle, 10 front wheel, 11 rear wheel , 12 power plug, 13 power cord take-up button, 15 attachment, 15a internal air passage member, 15b external air passage member, 15c second opening, 15d upper end of second opening, 15e holding piece engaging part, 16 tip member , 16a 1st side wall, 16b 2nd side wall, 16c side wall joint, 16d bearing hole, 16e engagement hole, 16f engagement hole, 16g regulation rib, 16h end (second opening side), 16j flocking, 16k finger hook, 16m finger hook, 17 rotation shaft, 18 protrusion, 19 arcuate rib, 23 electric blower, 25 main body suction port, 26 intake side filter, 27 exhaust side filter, 28 main body exhaust port, 31 dust collector Suction port, 32 dust collection chamber, 33 swivel part, 34 dust discharge port a, 35 dust discharge port b, 36 exhaust stack, 37 dust collection unit discharge port, 38 unlock button, 40 space, 51 first connection terminal , 52 2nd connection terminal, 53 3rd connection terminal, 61 locking hook, 62 unlocking button, 63 urging means, 71 cover member (exhaust port cover), 71a vent hole, 72 cover unlocking Lever, 73 Detection means, 81 Exhaust port (exhaust side hose body connection port), 81a 4th connection terminal insertion hole, 81b 5th connection terminal insertion hole, 81c 6th connection terminal insertion hole, 81d engaging part, 90 virtual circle, 91 virtual circle, 92 virtual circle, 96 tip member, 96a first side wall, 96b second side wall, 96c side wall joint, 96d bearing hole, 96h end, 96j1 hair planting, 96j2 hair planting, 100 electric cleaning Machine.

Claims (11)

An electric blower that generates an air flow to suck in air containing dust inside is provided, and a main body that has a suction port that sucks air inside and an exhaust port that discharges the sucked air to the outside.
A dust collecting unit for separating and accommodating the dust contained in the air,
One end side is connected to the suction port of the main body and becomes a part of an air passage that guides air containing dust to the inside of the main body, or one end side is connected to the exhaust port of the main body and air blows the discharged air. As a hose body that becomes a part of the air passage leading to the outside of the main body,
A breathable tube body having a hand handle, which is connected to the other end side of the hose body,
An extension tube that is detachably connected to the tube body,
A first opening is provided at one end and a second opening is provided at the other end, and the first opening has an air passage communicating the first opening and the second opening, and the first opening side is the pipe body or With an attachment that is detachably connected to the extension tube,
At a position near the second opening of the attachment, a rotation axis protruding outward from the outer shell of the attachment in a direction orthogonal to the longitudinal direction of the attachment is provided, and the outer shell of the attachment allows the wind of the attachment to be provided. The road and the external space of the attachment are isolated,
It has a bearing hole that is fitted to the rotation shaft, and a tip member that is rotatably supported by the attachment around the rotation shaft is attached.
The tip member is provided with a regulating rib that regulates ventilation of the space between the tip member and the attachment.
A vacuum cleaner in which the second opening is the only opening that communicates the air passage of the attachment with the external space at the location where the tip member of the attachment is attached. The tube body is provided with an operation unit.
The operation unit is a control board provided inside the main body that controls the drive and stop of the electric blower via the hose body by connecting the hose body to the suction port or the exhaust port of the main body. The vacuum cleaner according to claim 1, which is electrically connected to and operates the drive and stop of the electric blower. The attachment is provided with a protrusion at a position at a constant distance from the center of the rotation shaft.
The tip member is provided with an engaging hole that engages with the protrusion at a position at a certain distance from the center of the rotation shaft when the tip member is supported by the attachment.
The vacuum cleaner according to claim 1 or 2, wherein when the tip member is rotated, the engaging hole engages with the protruding portion to regulate and hold the rotation of the tip member. With the tip member rotatably supported by the attachment, a plurality of engagement holes are provided on concentric circles at a certain distance from the center of the rotation shaft, and the tip member is rotated a plurality. The vacuum cleaner according to claim 3, wherein the vacuum cleaner is regulated and held at the position of. The attachment is expandable and contractible, and is composed of an internal air passage member forming the air passage and an external air passage member slidably provided outside the internal air passage member, and is the internal air passage member or the external. When the attachment is extended by sliding the air passage member, the external air passage member forms an extended air passage, and the tip member is either the internal air passage member or the external air passage member. The electric vacuum cleaner according to any one of claims 1 to 4, which is attached to the door. The vacuum cleaner according to any one of claims 1 to 5, wherein flocking is provided at the end of the tip member on the second opening side of the attachment. A space formed between the tip member and the attachment at a position where at least the protruding portion of the attachment and the engagement hole of the tip member are engaged with the tip member and the rotation of the tip member is restricted. The vacuum cleaner according to claim 3, which is provided with a regulation rib that regulates the ventilation of the vacuum cleaner. The vacuum cleaner according to any one of claims 3 to 7 , wherein a convex finger hook portion is provided on the outer wall of the tip member. The vacuum cleaner according to any one of claims 1 to 8 , wherein an arcuate rib concentric with the center of the rotating shaft is provided on the outer shell of the attachment near the second opening. Flocking is provided at the first end of the tip member, which is the second opening side of the attachment, and when the tip member is rotated 180 degrees, it becomes the second opening side of the attachment. The vacuum cleaner according to any one of claims 1 to 6, wherein the second end is provided with a flock having a length different from that provided at the first end. Flocking is provided at the first end of the tip member, which is the second opening side of the attachment, and when the tip member is rotated 180 degrees, it becomes the second opening side of the attachment. The vacuum cleaner according to any one of claims 1 to 6, wherein the second end is provided with a flock having a hardness different from that of the flock provided at the first end.

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