JP7353082B2 - vacuum cleaner - Google Patents

Description

Embodiments of the present invention relate to a vacuum cleaner.

Conventionally, there are vacuum cleaners that use the exhaust air from an electric blower as a blower. Such a vacuum cleaner may be preferable if the blower function is more convenient.

Japanese Patent Application Publication No. 2011-250972

The problem to be solved by the present invention is to provide a vacuum cleaner that can improve the convenience of the blower function.

The vacuum cleaner of the embodiment includes: a vacuum cleaner main body including an electric blower, a suction port, and an exhaust port different from the suction port; a blower attachment that is detachable from the exhaust port; a suction member that is selectively and removably attached to a blower attachment; the blower attachment includes an attachment body that has an exhaust air passage therein; and a suction member that is provided on the attachment body and that is connected to the exhaust port of the vacuum cleaner body. a connection part that is removably attached to the attachment body, and is provided on the attachment body so that exhaust from the exhaust port is discharged via the exhaust air path, and a blower member or the suction member is removably attached to the attachment body. an air outlet attached to the air outlet, and an operation unit for releasing the fixation of the suction member to the air outlet, wherein the exhaust air path is bent from the connecting part, and the direction in which the air outlet opens and the connecting part have different opening directions, the suction port opens in a first direction, the suction member attached to the suction port is arranged along the first direction, and the blower attachment is attached to the vacuum cleaner body. The air outlet opens in the first direction in the opened state, the suction member attached to the air outlet is arranged along the first direction , and the attachment body is adjacent to the connecting part. It has a first end that fits together with the second end that is located on the opposite side of the first end, and the operating section is provided at the second end.

FIG. 1 is a side view of a vacuum cleaner according to an embodiment. FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment. FIG. 1 is a sectional view of a vacuum cleaner according to an embodiment. FIG. 1 is a side view of a vacuum cleaner according to an embodiment. FIG. 2 is a cross-sectional view of a connecting portion between a blower attachment and a vacuum cleaner according to an embodiment. FIG. 1 is a perspective view of a blower attachment according to an embodiment. FIG. 2 is a side view of a blower attachment according to an embodiment. FIG. 3 is a top view of the blower attachment according to the embodiment. FIG. 2 is a front view of a blower attachment according to an embodiment. FIG. 1 is a cross-sectional view of a blower attachment according to an embodiment. FIG. 1 is a cross-sectional view of a blower attachment according to an embodiment. FIG. 3 is a cross-sectional view of a modification of the blower attachment according to the embodiment. FIG. 7 is a top view of a modification of the blower attachment according to the embodiment.

Hereinafter, a blower attachment and a vacuum cleaner according to embodiments will be described with reference to the drawings. FIG. 1 is a side view of a vacuum cleaner 100 according to the present embodiment. FIG. 2 is a perspective view of the vacuum cleaner 100. FIG. 3 is a sectional view of the vacuum cleaner 100.

The blower attachment 1 is used by being attached to a first exhaust port 208 (exhaust port) of the vacuum cleaner 100, which will be described later. Specifically, when using the exhaust air of the vacuum cleaner 100 as a cleaning blower, a blower member or a suction member of the vacuum cleaner 100 is connected to the second exhaust port 213 via the blower attachment 1. Used as an attachment.

The vacuum cleaner 100 includes, for example, a vacuum cleaner main body 200, a blower attachment 1, and suction members 30A, 30B, and 30C. In the following, a so-called stick-type vacuum cleaner, which is a cordless type vacuum cleaner with a built-in secondary battery unit 210, will be described as an example. However, the vacuum cleaner 100 and the blower attachment 1 are not limited to cordless type and stick type examples, and can also be applied to, for example, a so-called canister type vacuum cleaner having a vacuum cleaner body including wheels, and other vacuum cleaners. be.

As shown in FIGS. 1 and 3, the vacuum cleaner main body 200 includes a housing 201, an electric blower 212, a suction port 203, a first exhaust port 208 (exhaust port), and a blower attachment portion 206. In addition to this, the vacuum cleaner main body 200 includes, for example, a dust collecting section 240, a second exhaust port 213, a secondary battery unit 210, a control section 211, and the like.

The housing 201 is made of, for example, synthetic resin. The housing 201 includes a handle 204, a suction port 203, a first exhaust port 208, a blower mounting portion 206, and a second exhaust port 213. The housing 201 has a space that can accommodate mechanisms such as the electric blower 212 described above and fixing portions for each mechanism. Electric blower 212, secondary battery unit 210, and control section 211 are housed within casing 201.

In the following description, the suction port 203 side of the vacuum cleaner 100 will be referred to as the front direction, and the direction opposite to the front direction and the handle 204 side will be referred to as the rear direction.

The suction port 203 is an opening to which suction members 30A and 30B, which will be described later, are attached. As shown in FIG. 3, the suction port 203 communicates with the suction tube 250. The front end of the suction tube 250 has a cylindrical shape coaxial with the suction port 203. The direction parallel to the central axis A of the cylindrical suction tube 250 is referred to as the front-rear direction. The direction perpendicular to the front-rear direction, the direction of arrow U shown in FIG. 1 is referred to as an upward direction, and the direction of arrow D is referred to as a downward direction. The direction of the arrow R shown in FIG. 2 is called the right direction, and the direction of the arrow L is called the left direction. Further, a line connecting the upper direction and the lower direction is appropriately referred to as the vertical direction, and a line connecting the right direction and the left direction is appropriately referred to as the width direction. The rear part of the suction tube 250 is curved upward toward a rear end opening 251 that opens on the top surface of the housing 201.

The suction port 203 is provided with a first lock portion 205 . The first lock portion 205 is a clamp-type engagement mechanism that holds the suction members 30A and 30B inserted into the suction port 203 in an engaged state. In the first lock portion 205, a first button 2051 is provided above the suction port 203. The first button 2051 is configured to be pushed downward from above.

The handle 204 is a part of the vacuum cleaner 100 that is held by the user. The handle 204 is provided at one end of the housing 201 and is formed to extend in an arch shape along the front-rear direction. A handle 204 is formed on an extension of the suction port 203 in the front-rear direction. The handle 204 is provided with a plurality of setting buttons 207 for switching the power source and drive mode of the vacuum cleaner 100.

A first exhaust port 208 (see FIG. 3) and a second exhaust port 213 (see FIG. 1) are formed in the lower part of the housing 201 as exhaust ports. As shown in FIG. 3, the first exhaust port 208 opens downward on the lower surface of the housing 201. The second exhaust port 213 is formed on the left and right side surfaces of the housing 201 above the first exhaust port 208. The second exhaust port 213 is composed of a plurality of small holes. The second exhaust port 213 may be provided with a filter.

As shown in FIG. 3, the first exhaust port 208 is provided with a blower mounting portion 206 and an on-off valve 230. The blower attachment part 206 is an opening into which a connecting part 3 of a blower attachment 1, which will be described later, is inserted and engaged. The blower attachment part 206 has an opening having a similar shape to the connecting part 3 of the blower attachment 1. The blower attachment portion 206 has a cylindrical shape with an axis extending in the vertical direction. The blower mounting portion 206 is provided with an attachment receiving portion (not shown) to which the blower attachment 1 is locked. A bearing portion 214 of an on-off valve 230 is provided at the upper end of the first exhaust port 208 .

The on-off valve 230 is a valve that switches the first exhaust port 208 between an open state and a closed state. FIG. 5 is a sectional view of a connecting portion between the blower attachment 1 and the vacuum cleaner 100. As shown in FIG. 5, the on-off valve 230 is rotatably mounted around a rotation shaft 231 supported by a bearing 214 of the first exhaust port 208. As shown in FIG. The on-off valve 230 has a rotation shaft 231 and an on-off valve body 232. The rotation shaft 231 is engaged with the bearing portion 214. The first surface 233 side of the on-off valve body 232 has a three-dimensional shape with a size that can be inscribed in the opening of the blower mounting portion 206 . The second surface 234 side of the on-off valve body 232 has a flat plate shape that can be inscribed in a locking port 216, which will be described later.

A blower attachment 1, which will be described later, is removably attached to the first exhaust port 208. When the blower attachment 1 is not attached, for example, during suction cleaning, the on-off valve 230 is held in the closed position and closes the first exhaust port 208. When the blower attachment 1 is attached to the first exhaust port 208, the on-off valve 230 is held at the open position and opens the first exhaust port 208. Details of the opening/closing operation of the on-off valve 230 will be described later. The "exhaust port" in this application is not limited to an exhaust port through which air is exhausted during normal use (during suction cleaning), and is not limited to an exhaust port through which air is exhausted during normal use (during suction cleaning). It also includes the exhaust port that opens when cleaning with an attachment.

The secondary battery unit 210 is housed in the rear lower part of the housing 201 and below the handle 204. The secondary battery unit 210 is electrically connected to a charging device (not shown) and charged. The secondary battery unit 210 supplies the vacuum cleaner 100 with the power necessary for the vacuum cleaner 100 to operate. For example, the secondary battery unit 210 supplies power to the electric blower 212, the brush motor attached to the suction port body 30C, the control unit 211, and the like.

The electric blower 212 includes a motor called a fan motor or a main motor, and an impeller rotated by the motor, and generates negative pressure when driven. The motor of the electric blower 212 may be, for example, a DC motor, but is not limited to this, and various motors can be used. The electric blower 212 is configured to draw in air from the suction port 203 and the like using the generated negative pressure, and exhaust the air to the outside of the cleaner body 200 from the first exhaust port 208 or the second exhaust port 213. The electric blower 212 is housed in front of the secondary battery unit 210 and below the handle 204.

Electric blower 212 is controlled by control section 211 . The control unit 211 is a control board including, for example, a microcomputer. The control unit 211 includes a drive control unit that operates the electric blower 212 and the like in response to a user's operation using the setting button 207, for example. The control unit 211 may include a charging circuit unit such as a constant current circuit that receives power from an external power source such as a commercial AC power source and charges the secondary battery. The control board includes a printed wiring board provided with a wiring pattern and a plurality of electronic components mounted on the printed wiring board.

The dust collecting section 240 is detachably attached to the housing 201. The dust collector 240 is a device that separates dust contained in the air sucked into the cleaner body 200 by the electric blower 212. The dust collecting section 240 is attached in front of the handle 204 and above the suction port 203. The dust collection section 240 includes a dust storage section 241 and a dust separator 245. The dust storage section 241 is arranged on the front end of the housing 201. A first connection port 243 with the rear end opening 251 of the suction port 203 is formed in the lower part of the dust storage portion 241 . The first connection port 243 is connected to the rear end opening 251. A second connection port 244 is connected to the front connection port 218 of the handle 204 at the rear end of the dust separator 245 .

A suction air path is formed in the vacuum cleaner main body 200 from the suction port 203 to the electric blower 212 with the dust collecting section 240 attached thereto. The suction air path is connected from the suction port 203 to the dust storage section 241 of the dust collection section 240 via the rear end opening 251, and is connected to the second connection port 244 rearward from the dust storage section 241 and the connection port 218 of the housing 201. It is also connected to an electric blower 212 inside the housing 201 via. In the dust collection section 240, a dust storage section 241, a filter 242, and a second connection port 244 are provided along the suction air path. The filter 242 is provided at the downstream end of the suction air path in the dust collection unit 240 to capture fine dust remaining in the fluid without being separated by the dust collection unit 240, thereby preventing the dust from entering the housing 201. suppress things.

An exhaust air path (exhaust path) is formed from the electric blower 212 to the exhaust ports 208 and 213. The exhaust air path runs from the exhaust section 2121 of the electric blower 212 to the exhaust ports 208 and 213 at the rear of the suction pipe 250 via a communication path 215 formed between the electric blower 212 and the bottom surface of the housing 201. It's communicating. A locking port 216 in which an on-off valve 230 can be locked is formed between the downstream end of the communication path 215 and the first exhaust port 208.

The suction member is a tubular member provided with a ventilation passage passing through it in the longitudinal direction. The suction member is, for example, a tubular member made of synthetic resin. The suction member is removably attached to the suction port 203 and the ventilation port 41 of the blower attachment 1 . Examples of the suction member include a short gap nozzle 30A (see FIG. 1) with a slit-shaped tip opening, a long extension tube 30B (see FIGS. 2 and 3), and a suction port body 30C (see FIGS. 2 and 3) that has a brush inside. A known suction member such as (see FIG. 4) can be applied. Each of the suction members 30A, 30B, and 30C has an insertion end that is inserted into and connected to the vacuum cleaner 100, respectively. Each of the suction members 30A, 30B, and 30C is used as a suction member that is attached to the suction port 203 and used as a blower member that is attached to the blower attachment 1.

In addition to the suction member, a special member for a blower (air blow nozzle) can be attached to the air outlet 41. That is, the end portions of the gap nozzle 30A, the extension pipe 30B, the suction hose (not shown), the suction port body 30C, and the air blow nozzle that are connected to the air outlet 41 have a common shape and structure. Further, the air blowing port 41 and the suction port 203 have a common shape and structure. With this configuration, the connection ends of the suction members 30A, 30B, 30C and the blower member can be connected to the suction port 203 and the air blowing port 41. Note that even if the structures of the suction members 30A, 30B, 30C and the blower member are the same, it does not matter whether they have electrical terminals or not. Further, the above-mentioned common shape and structure includes structures that are vertically symmetrical or horizontally symmetrical.

As shown in FIG. 1, a gap nozzle 30A can be connected to the air outlet 41. In addition, as shown in FIG. 4, an extension pipe 30B may be connected to the air outlet 41, and a gap nozzle 30A may be connected to the tip of the extension pipe 30B. Although not shown, for example, a known suction hose may be connected to the air outlet 41, and the suction port body 30C may be connected to the tip of the suction hose. For example, the suction port body 30C may be directly attached to the ventilation port 41. For example, a blower member may be connected to the extension pipe 30B shown in FIG.

The blower attachment 1 will be explained with reference to FIGS. 6 to 11. FIG. 6 is a perspective view of the blower attachment 1. 7 to 9 are views showing the side, top, and front sides of the blower attachment 1, respectively. 10 and 11 are sectional views of the blower attachment 1 in the vertical direction. The blower attachment 1 is a component that is attached to the vacuum cleaner body 200 when the vacuum cleaner 100 is used as a blower using the exhaust air from the electric blower 212.

The blower attachment 1 includes an attachment body 2, a connecting portion 3, an engaging portion 4, and an air outlet 41. The attachment body 2 is, for example, a member made of synthetic resin and has a three-dimensional shape, and is provided with a connecting portion 3 at an upper portion and an engaging portion 4 at a front portion.

The connecting portion 3 is a portion that is detachably attached to the first exhaust port 208 of the vacuum cleaner 100. The connecting portion 3 is provided to protrude in the upward direction U from the upper part of the attachment main body 2. As shown in FIG. 6, the connecting portion 3 has a cylindrical shape, and a pair of locking portions 31 are provided on left and right side walls 35. As shown in FIG. The pair of locking portions 31 are configured to be elastically deformable in the width direction relative to the side wall 35, respectively. The pair of locking portions 31 are configured to be movable in conjunction with a push-in operation of a button 34 provided on the left and right side walls of the attachment body 2.

A protrusion 32 that protrudes in the upward direction U is provided within the opening of the connecting portion 3 . The protrusion 32 protrudes above the upper end of the connecting portion 3. A locking groove 33 is formed between the lower part of the connecting part 3 and the upper part of the attachment body 2. The locking groove 33 is formed around the entire lower part of the connecting portion 3 .

The engaging portion 4 is a cylindrical portion that projects further forward than the front surface 26 of the attachment body 2 . An air outlet 41 that opens toward the front is formed at the front end of the engaging portion 4 . The air outlet 41 is an opening through which exhaust air from the first exhaust port 208 is discharged via the exhaust air path D2. The engaging portion 4 selectively and detachably engages one of the suction members 30A, 30B, 30C or the blower member attached to the air outlet 41. The engaging portion 4 has a shape and dimensions that allow the insertion end of the suction members 30A, 30B, 30C or the blower member to be inserted through the air outlet 41. The air outlet 41 is open on the front side of the attachment body 2. The lower part 42 of the engaging part 4 extends further forward than the upper part 43, and the front end part is inclined.

The lower part 42 of the engaging part 4 has a planar shape parallel to the central axis B of the air outlet 41. A locking wall 44 is formed along the central axis B inside the engaging portion 4 . A second lock part 5 (operation part) is provided at the lower part of the engagement part 4. The second lock portion 5 is provided below the locking wall 44 . The second locking portion 5 has a rear end portion of the second button 51 connected to the lower part of the engaging portion 4, and a front end portion thereof is configured to be rotatable.

An exhaust air passage D2 is formed inside the attachment body 2. Specifically, as shown in FIG. 10, an exhaust air path D2 is formed inside the attachment main body 2 and communicates between the connecting portion 3 and the air outlet 41. The exhaust air path D2 is an air path that extends downward from the connecting portion 3 and bends toward the front at the intermediate portion D21. The exhaust air passage D2 is bent so that the direction in which it extends on the connecting portion 3 side (vertical direction) and the direction in which it extends on the air outlet 41 side (front-back direction) are substantially orthogonal. A gap S is formed between the partition wall 27 of the exhaust air passage D2 and the outer wall 28 of the attachment body 2 at the bent portion.

The attachment body 2 is provided with a leak valve 7. The leak valve 7 is provided within the exhaust air path D2. The leak valve 7 is configured to open the exhaust air passage D2 when the internal pressure becomes high while the exhaust air passage D2 is sealed. The leak valve 7 is located near the bent portion of the exhaust air passage D2 and between the exhaust air passage D2 and the outer wall 28 of the attachment body 2. The partition wall 27 of the exhaust air passage D2 has an opening 6, and the opening 6 communicates with the gap S between the exhaust air passage D2 and the attachment body 2. Leak valve 7 is arranged in opening 6.

In the leak valve 7, the center of the rubber valve 70 is fixed to the outer wall 28 of the exhaust air path D2 with a screw 75. Normally, the outer circumferential portion 74 of the rubber valve 70 contacts the opening edge of the opening 6 and closes the opening 6 of the leak valve 7. If exhaust continues with the tip side of the suction member or the blower member blocked, the internal pressure within the exhaust air path D2 will rise. When the internal pressure of the exhaust air passage D2 increases excessively, the outer circumference 74 of the rubber valve 70 is pushed and elastically deformed outward, as shown in FIG. 11, and the outer circumference 74 of the rubber valve 70 is separated from the opening 6. Opening 6 is opened. Air in the exhaust air passage D2 flows out from the opened opening 6. Since the attachment body 2 is formed with a deaeration hole 22 that communicates with the inside and outside of the attachment body 2, when the opening 6 is opened, the internal pressure in the exhaust air passage D2 decreases. When the inside of the exhaust air passage D2 returns to normal internal pressure, the outer peripheral portion 74 of the rubber valve 70 comes into contact with the edge of the opening 6 again, and the opening 6 is closed.

Next, how the vacuum cleaner 100 and the blower attachment 1 are used will be described.
During suction cleaning, when the user inserts the insertion ends of the suction members 30A and 30B into the suction port 203, the first locking part 205 (operation part) functions and the suction members 30A and 30B engage with the suction port 203. and the engaged state is maintained. In this state, the suction function of the vacuum cleaner 100 is used. At this time, the first exhaust port 208 is closed by the on-off valve 230, and the exhaust air passage of the vacuum cleaner 100 is opened on the locking port 216 side, and the exhaust air from the vacuum cleaner 100 is discharged from the second exhaust port 213 to the outside. is discharged.

When using the vacuum cleaner 100 as a blower, the user attaches the blower attachment 1 to the first exhaust port 208. Specifically, when the connecting portion 3 of the blower attachment 1 is approached from below the vacuum cleaner body 200 and inserted into the first exhaust port 208, the protrusion 32 of the connecting portion 3 comes into contact with the on-off valve 230 first. Since the protrusion 32 contacts the on-off valve 230 at a position unevenly distributed from the center, when the blower attachment 1 is pushed upward, the on-off valve 230 can be smoothly rotated by the protrusion 32 . The user simply pushes the blower attachment 1 upward with the connecting part 3 inserted into the first exhaust port 208, and the on-off valve 230 rotates, and the pair of locking parts of the connecting part 3 31 engages with the blower mounting portion 206. At this time, the first exhaust port 208 is inserted into the locking groove 33. When the blower attachment 1 is attached to the vacuum cleaner body 200, the locking port 216 of the exhaust air path is closed by the on-off valve 230, the second exhaust port 213 is closed, and the exhaust air flows into the exhaust air path D2 of the blower attachment 1. .

Next, the user attaches the suction member or the blower member to the blower attachment 1. For example, when attaching the gap nozzle 30A or the extension tube 30B to the blower attachment 1, the insertion end of the gap nozzle 30A or the extension tube 30B is brought close to the engagement part 4 along the front-rear direction and inserted into the air outlet 41. When the suction members 30A, 30B are inserted into the air outlet 41, the side walls of the insertion ends of the suction members 30A, 30B push the contact end 53 of the second button 51 downward, and the second button 51 pivots. Rotating upward around the branch, the engagement piece 55 enters a radially recessed engagement recess (not shown) formed in the suction members 30A, 30B. As a result, the insertion ends of the suction members 30A, 30B are held between the locking wall 44 and the lower part 42 of the engagement part 4, and the engagement piece 55 of the second button 51 is held at the insertion end. By entering the engagement recess, the suction members 30A and 30B are engaged with the engagement portion 4. Furthermore, since the lower part of the engaging part 4 is planar and extends forward from the upper part, the engaged suction members 30A and 30B are stably supported. The same applies when attaching the gap nozzle to the blower attachment 1.

Here, when the blower attachment 1 is attached to the vacuum cleaner main body 200, the direction in which the air blowing port 41 opens and the direction in which the suction port 203 opens are both parallel to each other along the front-rear direction. In other words, the direction in which the suction members 30A, 30B are attached to the suction port 203 and the direction in which the suction members 30A, 30B or the blower member are attached to the air outlet 41 of the blower attachment 1 attached to the vacuum cleaner body 200 are different. parallel. As a result, the balance of the center of gravity of the vacuum cleaner 100 when the user holds the vacuum cleaner 100 does not change between when using the suction function and when using the blower function of the vacuum cleaner 100, and the user can easily use the vacuum cleaner 100. Can hold 100.

When the electric blower 212 is powered on with the suction members 30A and 30B attached to the blower attachment 1, the exhaust air from the blower attachment 1 passes through the exhaust air passage of the cleaner body 200 and the first exhaust port 208. Air is blown to the outside through the path D2 and the suction members 30A and 30B, allowing cleaning with a blower.

When removing the suction members 30A, 30B from the blower attachment 1, pushing the second button 51 upward releases the engagement between the suction members 30A, 30B and the engaging portion 4.

When the blower attachment 1 is attached to the vacuum cleaner main body 200, the first button 2051 of the first lock part 205 of the suction port 203 is arranged toward the top of the vacuum cleaner 100, and The second button 51 of the second lock portion 5 of No. 4 is arranged on the surface of the attachment main body 2 toward the bottom of the vacuum cleaner 100. In other words, the second lock part (second operating part) is located on the opposite side (first end part) to the side (first end part) where the first lock part (first operating part) 205 adjacent to the connecting part 3 is provided. It is provided on the surface of the attachment body 2 at the end (end part). The first button 2051 and the second button 51 are arranged in opposite directions. In this way, the first button 2051 and the second button 51 are spaced apart from each other and arranged in opposite directions, so that the first button 2051 and the second button 51 do not interfere with each other, and the first button 2051 and the second button 51 do not interfere with each other. It is easy to press the button 51, and the suction members 30A and 30B are easy to remove.

When removing the blower attachment 1 from the vacuum cleaner main body 200, pushing the button 34 of the attachment main body 2 in the width direction from the outside releases the engagement between the pair of locking parts 31 and the blower mounting part 206. Next, when the blower attachment 1 is moved downward, the on-off valve 230 rotates downward, and the first surface 233 of the on-off valve body 232 is inscribed in the opening of the blower mounting part 206, and the first exhaust port 208 is closed. be done.

According to the embodiment described above, since the blower attachment 1 includes an engaging portion that can engage the suction member, the blower attachment 1 is attached to the exhaust port of a suction type vacuum cleaner, and the suction member is attached to the blower. Can be used as a functional member. Therefore, when the user performs suction cleaning and cleaning with a blower in succession, there is no need to prepare a separate blower member, and the user only needs to attach the suction member to the blower attachment 1, which improves convenience. Furthermore, there is no need to prepare a dedicated nozzle for the blower, and the number of parts can be reduced.

According to the embodiment described above, since the blower attachment 1 includes the leak valve 7, when the internal pressure of the exhaust path increases, the leak valve 7 operates to open the exhaust air path D2. Therefore, for example, when the tip opening of the suction member or the blower member is blocked and the internal pressure inside the blower attachment 1 increases when the blower is used, an excessive increase in internal pressure can be suppressed and the load on the vacuum cleaner 100 can be prevented. It can be suppressed.

According to the embodiment described above, since the leak valve 7 of the blower attachment 1 is the rubber valve 70, the exhaust air passage D2 can be opened with a simple configuration when the internal pressure of the exhaust air passage D2 increases. Furthermore, after the leak valve 7 is activated, the rubber valve 70 returns to its normal position when the internal pressure of the exhaust air passage D2 returns to its normal state, so the user does not need to perform any special operation to return the leak valve 7 to its original position. , convenience is improved.

According to the embodiment described above, since the blower attachment 1 is removably attached to the vacuum cleaner 100, the user's operability is improved when the vacuum cleaner 100 is used as a blower. In particular, since the suction member of the vacuum cleaner 100 is removably attached to the suction port 203 and the blower attachment 1, the suction member can also be used as a blower member. Therefore, when a user performs suction cleaning and cleaning using a blower in succession, there is no need to prepare a separate blower member, and the user only needs to attach the suction member to the blower attachment 1, thereby improving operability. Further, there is no need to prepare a special member for the blower, and the number of parts can be reduced.

According to the embodiment described above, the vacuum cleaner 100 has a direction in which the suction member is attached to the suction port 203, and a direction in which the suction member or the blower is attached to the air outlet 41 of the blower attachment 1 attached to the vacuum cleaner main body 200. The direction in which the parts are attached is parallel to each other. As a result, the balance of the center of gravity of the vacuum cleaner 100 when the user holds the vacuum cleaner 100 is the same when using the suction function and when using the blower function, and the user can easily hold the vacuum cleaner 100. . Therefore, the operability of the vacuum cleaner 100 is improved.

According to the embodiment described above, the vacuum cleaner 100 has the first locking portion 205 and the second locking portion such that the pushing direction of the first button 2051 and the pushing direction of the second button 51 are opposite to each other. 5 are arranged. This configuration prevents the first locking part 205 and the second locking part 5 from being disposed close to each other and interfering with each other, making it easy to press the first button 2051 and the second button 51, and making it possible to easily press the first button 2051 and the second button 51. Easy to attach and detach. Moreover, the first locking part 205 and the second locking part 5 can have a simple configuration.

The configuration of the blower attachment 1 is not limited to the above configuration example. For example, in the above embodiment, an example is shown in which the leak valve 7 is a rubber valve 70, but the configuration of the leak valve is not limited to this. FIG. 12 shows a cross-sectional view of a modification of the blower attachment. This modification is an example of a blower attachment 1A having a different leak valve configuration. Other common configurations are given the same reference numerals and explanations will be omitted. The leak valve 7A of this modification is configured to be opened and closed by a spring 72. Specifically, in the opening 6A, an inner opening 61 and an outer opening 62 are spaced apart from each other in the front-rear direction. A circular rib 63 is provided at the opening edge of the outer opening 62. A first end of the spring 72 is fitted onto the outer periphery of the rib 63 . The second end of the spring 72 is fixed to the outer surface of the plate-shaped valve body 71. The valve body 71 is arranged so as to close the inner opening 61, and is urged and held toward the exhaust air path D2 by a spring 72 on the outer surface side of the valve body 71. When the internal pressure in the exhaust air passage D2 becomes excessively high, the force pushing the valve body 71 outward becomes stronger than the biasing force of the spring 72, and the valve body 71 separates outward from the inner opening 61 and closes the inner opening 61. will be released. At this time, the valve body 71 does not block the outer opening 62 due to the biasing force of the spring 72. As a result, the leak valve 7A can open the opening 6A and lower the internal pressure in the exhaust air path D2.

In the above embodiment, an example is shown in which the leak valve 7 is provided, but the leak valve is not an essential configuration. For example, when the vacuum cleaner main body 200 is equipped with a function that stops the electric blower 212 when the openings of the suction members 30A, 30B or the blower member are blocked and excessive internal pressure is applied in the exhaust air path D2. does not require a leak valve on the blower attachment.

The configuration of the blower attachment 1 is not limited to the above configuration example. FIG. 13 shows a modified blower attachment 1A. A modified blower attachment 1B shown in FIG. 13 includes a rotating portion 29 in an attachment body 2B. Other configurations similar to those in the embodiment are given the same reference numerals and descriptions thereof will be omitted. The rotating part 29 is provided between the attachment body 2B and the connecting part 3, and is a mechanism that connects the connecting part 3 and the attachment body 2B so that they can rotate relative to each other. That is, a circular opening is formed on the upper surface of the attachment main body 2B, and a slide groove is formed at the edge of the circular opening. A circular slide groove is also formed outside the locking groove 33 of the connecting portion 3. The slide groove of the attachment body 2B and the slide groove of the connecting portion 3 are engaged, and the connecting portion 3 and the attachment body 2B are connected to be relatively rotatable.

According to the above modification, since the blower attachment 1B includes the rotating part 29, the connecting part 3 and the attachment main body 2B can rotate relative to each other. That is, when the blower attachment 1B is attached to the cleaner body 200, the direction of the air outlet 41 relative to the cleaner body 200 can be changed by rotating the attachment body 2B. As a result, the user can change the direction of the suction members 30A, 30B or the blower member connected to the air outlet 41 to a desired direction, improving the operability of the user when using the blower.

In the above embodiment, an example was shown in which the suction member is also used as the blower member, but not only the suction member but also a dedicated member for the blower may be attached to the air outlet.

In the above embodiment, an example is shown in which the gap nozzle 30A or the extension pipe 30B is attached to the air outlet 41 of the blower attachment, but the blower attachment can function as a blower even when nothing is attached to the air outlet.

In the above embodiment, an example is shown in which the gap nozzle 30A or the extension pipe 30B is attached to the suction port 203 or the air outlet 41, but the form of the suction member or the blower member attached to the suction port 203 or the air outlet 41 is as follows. However, various suction members or blower members can be attached. For example, a structure may be adopted in which the suction port body 30C attached to the extension pipe 30B shown in FIG. 2 is directly attached to the suction port 203 or the ventilation port 41. For example, when the suction port body 30C is attached to the air outlet 41 and used as a blower member, it is possible to scrape out dust from the floor surface with the brush of the suction port body 30C and blow it away with the blower.

Although several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention as well as within the scope of the invention described in the claims and its equivalents.

DESCRIPTION OF SYMBOLS 1... Blower attachment, 2... Attachment body, 3... Connection part, 5... Second lock part, 7... Leak valve, 29... Rotating part, 30A... Gap nozzle (suction member), 30B... extension tube (suction member), 30C... suction port body (suction member), 41... ventilation port, 51... second button, 70... Rubber valve, 100... Vacuum cleaner, 200... Vacuum cleaner body, 203... Suction port, 208... First exhaust port (exhaust port), 212... Electric blower, 2051... first button

Claims (8)

A vacuum cleaner body including an electric blower, a suction port, and an exhaust port different from the suction port;
a blower attachment that is detachable from the exhaust port;
a suction member selectively and detachably attached to the suction port of the vacuum cleaner body and the blower attachment;
The blower attachment is
an attachment body having an internal exhaust air passage;
a connecting portion provided on the attachment body and detachably attached to the exhaust port of the vacuum cleaner body;
an air outlet provided in the attachment main body, through which exhaust air from the exhaust port is exhausted via the exhaust air path, and to which a blower member or the suction member is removably attached;
an operation unit that releases the suction member from being fixed to the air outlet;
Equipped with
The exhaust air path is bent from the connecting portion, and the opening direction of the air outlet is different from the opening direction of the connecting portion,
The suction port is open in a first direction, and the suction member attached to the suction port is arranged along the first direction,
When the blower attachment is attached to the vacuum cleaner body, the air outlet opens in the first direction, and the suction member attached to the air outlet is arranged along the first direction ,
The attachment body has a first end adjacent to the connecting portion, and a second end located on the opposite side of the first end,
The operation section is a vacuum cleaner provided at the second end . The vacuum cleaner according to claim 1, wherein one of the plurality of suction members is selectively attached to the air outlet. The vacuum cleaner according to claim 2, wherein the plurality of suction members include gap nozzles that can be attached to the vacuum cleaner main body. The vacuum cleaner according to claim 2 or 3, wherein the plurality of suction members include an extension tube that can be attached to the vacuum cleaner main body. The air blowing port has the same shape as the suction port,
The vacuum cleaner according to any one of claims 1 to 4. The vacuum cleaner according to any one of claims 1 to 5 , further comprising a leak valve that opens the exhaust air passage when the internal pressure of the exhaust air passage increases. The vacuum cleaner according to claim 6 , wherein the leak valve is a rubber valve. a first operation part provided on a surface of the vacuum cleaner body opposite to the exhaust port, and having a first button to release the suction member from the suction port;
a second operation part provided on the surface of the blower attachment opposite to the connection part, the second operation part having a second button to release the fixation of the suction member from the air outlet;
The direction in which the first button is pressed and the direction in which the second button is pressed are opposite to each other.
The vacuum cleaner according to any one of claims 1 to 7 .

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