JP6572426B2 - Suction tool and electric vacuum cleaner using the same - Google Patents

Description

  The present invention relates to a suction tool for sucking dust and a vacuum cleaner using the suction tool.

  In a general vacuum cleaner, a hose connected to the main body of the vacuum cleaner, a hand operating part connected to the hose, an extension pipe connected to the hand operating part, and connected to the extension pipe It consists of a nozzle.

  However, since such a nozzle is large-sized, it is not suitable for sucking up dust in a high place, for example, on a chest.

  In order to solve such a problem, various techniques are disclosed in an open patent publication. For example, in Patent Document 1, a connecting portion is attached to the tip of an extension pipe, and further, at the tip of the connecting portion, There has been disclosed a vacuum cleaner that can easily collect dust by rotating a small brush even at a high place by mounting a brush holder having a brush rotatable by a shaft.

JP 2010-99165 A

  However, in the technique described in Patent Document 1 described above, the brush is rotatable, but since the extension pipe existing from the hand operating unit to the brush has a straight shape, the brush reaches the back of the upper side of the chase. It cannot be applied, and its application is limited.

The present invention is for solving such a problem, and it enables dust collection up to a narrow part or a part on the top of a chiffon that cannot be reached by a general nozzle by bending at a joint part. An object of the present invention is to provide a suction tool that can avoid a situation in which a user's finger is pinched by a bent joint, and a vacuum cleaner using the suction tool.

In order to solve the conventional problem, a suction tool according to the present invention includes a connecting pipe part that can be expanded and contracted, a joint part having a plurality of rotating parts connected to the connecting pipe part, and the joint part. rotatably connected, and a suction head having a suction port for sucking dust by suction air generated from the electric blower to the cleaner main body is built of three on the lower side of the one end side of the rotating portion projecting The joint portion has three groove portions on the lower side of the other end side, and the joint portion has two adjacent rotating portions connected by one shaft portion, and two adjacent portions having one shaft portion as an axis. The three projecting parts of one of the two rotating parts in an unrotated state in which the rotating parts are combined and the two rotating parts are positioned substantially in a straight line. Are inserted in the three groove portions of the other rotating portion, respectively, or are inserted in the same plane, while the two rotating portions In a state where the space is rotated and bent, a part of the three projecting portions of one rotating portion of the two rotating portions is respectively outward from the three groove portions of the other rotating portion. The three protrusions inserted in an exposed state and exposed to the outside prevent the user's finger from getting into the gap between the two rotating parts.

As a result, the joint part can be bent in multiple stages by the plurality of rotating parts, and the suction head can be swung into the back of the chiffon, and can be cleaned out of reach. Can be done.
In addition, a user's finger enters the gap by partially closing the gap portion generated at the bent portion between the rotating portions with the projecting portion while making it possible to increase the rotation angle of the rotating portion. It can be prevented from being pinched.
Further, when the rotating parts are substantially aligned with each other, the protruding parts are not exposed to the outside, so that when the user holds the rotating part part, the protruding parts do not hit the hand, and the user feels uncomfortable. Never give. On the other hand, when an angle is provided between the rotating parts, that is, when the rotating parts are bent, the protruding parts are exposed to the outside, and the user's finger is used to partially close the gap between the rotating parts. It is possible to avoid such a situation that is sandwiched between the rotating parts.

  The suction tool of the present invention has a joint part composed of a plurality of rotating parts, and can be bent in multiple stages, so that it can be cleaned out of reach and the rotating part can be rotated. While making it possible to increase the moving angle, it is possible to prevent the user's finger from being caught in the gap portion generated at the bent portion between the rotating portions.

The external appearance perspective view of the vacuum cleaner in embodiment of this invention The external appearance perspective view which looked at the suction tool in embodiment of this invention from upper direction Same as above, exploded perspective view of connecting pipe part of suction tool Same as above, sectional view near the switch operation button of the connecting pipe part of the suction tool Same as above, exploded perspective view of joint part of suction tool The exploded perspective view which shows the connection part of two rotation parts of a suction tool same as the above The external perspective view seen from the bottom of the state where the suction head is connected to the joint part of the suction tool The external appearance perspective view which shows the state which bent the joint part of the suction tool same as the above Side view of the state where the joint part of the suction tool is bent 90 degrees The exploded perspective view of the joint part of the suction tool and the suction head

A first aspect of the present invention is a telescopic connecting pipe part, a joint part having a plurality of rotating parts connected to the connecting pipe part, and a suction head rotatably connected to the joint part. Prepared,
The three protruding portions on the lower side of the one end side of the rotation unit has three grooves on the lower side of the other end, the joint portion, one of two rotating portions adjacent axis In the non-rotation state in which the two rotation parts are located on a substantially straight line , the two rotation parts are connected. The three projecting portions of one of the rotating portions are inserted into the three groove portions of the other rotating portion in a state where they are buried or in the same plane, and between the two rotating portions. In the state of turning and bending, a part of the three protrusions of one of the two rotating parts is exposed to the outside from the three groove parts of the other rotating part. it is obtained by the so that the inserted state being.
As a result, the joint part can be bent in multiple stages by the plurality of rotating parts, and the suction head can be swung into the back of the chiffon, and can be cleaned out of reach. Can be done.
In addition, a user's finger enters the gap by partially closing the gap portion generated at the bent portion between the rotating portions with the projecting portion while making it possible to increase the rotation angle of the rotating portion. It can be prevented from being pinched.
Further, when the rotating parts are substantially aligned with each other, the protruding parts are not exposed to the outside, so that when the user holds the rotating part part, the protruding parts do not hit the hand, and the user feels uncomfortable. Never give. On the other hand, when an angle is provided between the rotating parts, that is, when the rotating parts are bent, the protruding parts are exposed to the outside, and the user's finger is used to partially close the gap between the rotating parts. It is possible to avoid such a situation that is sandwiched between the rotating parts.

In the second invention, in particular, the suction tool according to the first invention is an electric vacuum cleaner communicating with a main body of a vacuum cleaner that includes an electric blower that generates suction air, so that the suction tool Therefore, it is possible to provide an easy-to-use electric vacuum cleaner that can be cleaned up to a place that is out of reach.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
FIG. 1 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention.
In FIG. 1, the cleaner body 1 includes an electric blower (not shown) that generates a suction force and a dust collecting part (not shown). One end of the hose 2 is connected to the cleaner body 1 via the hose joint 3 and communicates with the dust collecting portion.

  The hand operation unit 4 has one end connected to the hose 2 and includes a plurality of switches for the user to perform operations such as turning on and off the electric blower. On the other hand, an extension tube 5 is connected to the other end of the hand operation unit 4, and the extension tube 5 is configured to be extendable.

  Furthermore, a nozzle 6 is connected to the distal end of the extension pipe 5, and when the user performs a power-on operation using the hand operation unit 4, the electric blower inside the cleaner body 1 is driven and the suction port of the nozzle 6 is driven. (Not shown) generates suction air, sucks up dust on the floor, etc., and collects dust on the dust collector inside the vacuum cleaner main body 1 via the extension pipe 5, the hand operating section 4, and the hose 2. Is possible.

  Since the extension tube 5 is detachable from the hand operation unit 4, it is possible to remove the extension tube 5 from the hand operation unit 4 and suck dust from an opening (not shown) of the hand operation unit 4. It is also possible to remove the nozzle 6 from the extension pipe 5 and suck dust from an opening (not shown) of the extension pipe 5.

  FIG. 2 shows an external perspective view of the suction tool 7 according to the embodiment of the present invention. The suction tool 7 can be attached to the hand operation unit 4 instead of the extension tube 5, and can also be attached to the extension tube 5 instead of the nozzle 6.

  In FIG. 2, the suction tool 7 includes a connecting pipe portion 8, a joint portion 9, and a suction head 12. The connecting pipe part 8 can be expanded and contracted in the extending direction of the suction tool 7, and the user can extend and contract the connecting pipe part 8 while pressing the operation button 20. On the other hand, when the user does not press down the operation button 20, the connecting pipe part 8 cannot be expanded and contracted, and the length of the connecting pipe part 8 is maintained.

  The joint portion 9 includes a plurality of rotating portions 11 to be described later and can be bent stepwise. The structure and bending operation will be described in detail later.

  A suction head 12 is connected to the distal end of the joint portion 9, and as shown in FIG. 2, the suction head 12 extends in a direction perpendicular to the axis A (in the state of FIG. 2, the direction in which the connecting pipe portion 8 extends). Can be rotated in the direction of arrow BB ′, ie, in the direction perpendicular to the direction in which the suction tool 7 extends. It is.

  Further, the suction head 12 can rotate in the direction of the arrow C-C ′ in FIG. That is, the suction head 12 can rotate clockwise or counterclockwise around the direction in which the connecting pipe portion 8 extends in the state of FIG.

  The suction head 12 has a light emitting portion 13 at the tip. The light emitting portion 13 has an outer shell formed of a transparent resin or the like for emitting light to the outside, and further, a semiconductor light emitting element such as an LED (Light Emitting Diode) is disposed inside the light emitting portion 13. Light from the LED can be emitted to the outside.

In addition, a switch operation unit 14 for causing the LED to emit light or extinguish is formed on the top of the suction head 12, and the user can cause the LED to emit light or extinguish by sliding the switch operation unit 14. Is possible.

  FIG. 3 is an exploded perspective view of the connecting pipe portion 8, and FIG. 4 is a central sectional view of the vicinity of the operation button 20 of the connecting pipe portion 8. In FIG. 3, a cover 16 is fitted into one end of the outer extension pipe 15, and an inner extension pipe 18 is inserted into the other end via a stopper 17. A first opening 19 is formed in the lower part of the outer extension pipe 15.

  In FIG. 4, a first protrusion 21 that protrudes inward is formed integrally with the operation button 20 inside the operation button 20, and a spring 22 is inserted into the first protrusion 21. Yes. Further, a first locking portion 23 is attached to one end of the operation button 20, and the first locking portion 23 is accommodated in a first opening 19 provided at the lower portion of the outer extension tube 15. Has been placed.

  The first locking portion 23 is locked in any one of the plurality of first groove portions 24 formed in the inner extension tube 18, so that the inner extension tube 18 slides with respect to the outer extension tube 15. Be regulated.

  In addition, a second protrusion 26 of the locking plate 25 is disposed at a position facing the first protrusion 21 of the operation button 20. The above-described spring 22 is also inserted into the second protrusion 26, and the spring 22 is interposed between the first protrusion 21 and the second protrusion 26.

  Normally, the operation button 20 is urged downward in FIG. 4 by the elastic force of the spring 22, and the first locking portion 23 is urged upward in FIG. For this reason, the 1st latching | locking part 23 is latched by the 1st groove part 24, and the sliding of the inner side extension pipe | tube 18 with respect to the outer side extension pipe | tube 15 is controlled.

  When the user presses the operation button 20, the operation button 20 is pressed upward in FIG. 4 against the urging force of the spring 22, and accordingly, the first locking portion 23 moves downward in FIG. Then, the locking of the first locking portion 23 to the first groove portion 24 is released. In this way, the inner extension tube 18 is slidable with respect to the outer extension tube 15.

  FIG. 5 is an exploded perspective view of the joint 9. The joint portion 9 includes a plurality of rotating portions 11 and one fixing portion 10, and includes three rotating portions 11 and one fixing portion 10 in the present embodiment. The rotating portion 11 has a substantially circular third protrusion 27 at one end and a substantially circular first hole 28 and a notch 30 at the other end.

  The third projecting portion 27 of the rotating portion 11 is inserted into the first hole 28 of the adjacent rotating portion 11, and the rotating portion 11 has the insertion portion as an axis B and the front is in the direction D in FIG. It can be rotated about 30 degrees in a direction perpendicular to the direction in which the rotating portion 11 extends.

  Note that this about 30 degrees means that it is possible to rotate up to about 30 degrees between the two rotating parts 11. For example, the rotating part 11 has 3 as in this embodiment. When there is one, the cumulative total of the rotation from the first rotation unit to the third rotation unit can be rotated up to about 90 degrees. That is, the rotation part 11 on the first connecting pipe part 8 side with respect to the fixing part 10 can rotate up to about 90 degrees.

  An inclined surface 29 is formed in front of the rotating portion 11 (on the suction head 12 side), specifically, in the vicinity of the upper portion of the third protrusion 27 so as to be inclined downward from the rear toward the front. On the other hand, a notch in which a notch is widened from the rear to the front of the rotating part 11 at the rear of the rotating part 11 (on the connecting pipe part 8 side), specifically in the vicinity of the upper part of the first hole 28. 30 is formed.

  FIG. 6 is an enlarged perspective view of a connecting portion between the rotating portions 11. Two grooves of an upper groove 31 and a lower groove 32 are formed inside both side surfaces behind the rotating part 11, while notches 33 are formed outside both side surfaces in front of the rotating part 11.

  Both the upper groove 31 and the lower groove 32 have a substantially triangular shape whose width becomes narrower from the rear to the front of the rotating portion 11, and is parallel to the direction in which the rotating portion 11 extends. There is one side of this triangle. Further, the upper groove 31 and the lower groove 32 have a symmetrical shape as if they were mirrored with the extending direction of the rotating portion 11 as an axis (tube axis direction).

  On the other hand, the notch 33 has a substantially triangular shape that gradually becomes wider from the front to the rear.

  When this notch 33 is fitted into the upper groove 31 or the lower groove 32, a large to moderate wobbling occurs between the rotating parts 11 that are fitted to each other, which becomes an obstacle during cleaning work. It is preventing. However, some play may be formed between the lower groove 32 or the upper groove 31 and the notch 33, and it is possible to cause slight wobble by this play.

  In the state where the notch 33 is present in the upper groove 31, the rotation angle between the two rotating portions 11 that are fitted to each other is approximately 0 degrees, and the tube axes of the rotating portions are in the same direction. It is in an extended state.

  Next, when the rotating part 11 is rotated by a predetermined angle or more in a state where the notch 33 is present in the upper groove 31, the rotating part 11 is formed of resin, so that the elastic force causes The existing notch 33 gets over the boundary between the upper groove 31 and the lower groove 32 and moves to the lower groove 32. By such an operation, as described with reference to FIG. 5, the rotating portions 11 can rotate to about 30 degrees, and this angle can be maintained when the rotating parts rotate about 30 degrees.

  Note that this angle is not limited to about 30 degrees, and depending on the shape of the notch 33 and the groove portion, an angle of 30 degrees or more or an angle of less than 30 degrees can be used.

  This time, the number of grooves is set to two, that is, the upper groove 31 and the lower groove 32. However, the number of grooves is not limited to this number, and may be set to three or more. However, if the number of grooves is increased, a finer angle can be set, but the rotating part 11 becomes larger or the holding force of the joint becomes weaker, so the total value of the upper groove 31 and the lower groove 32 is Two to eight are suitable.

FIG. 7 is a perspective view of the state in which the suction head 12 is mounted on the joint portion 9 as viewed from below.
In FIG. 7, three bottom groove portions 34 are formed on the lower rear side of the rotating portion 11, while three projecting portions 35 are formed on the lower front side of the rotating portion 11. The three projecting portions 35 are arranged so as to be inserted into the three bottom groove portions 34, respectively.

  FIG. 8 is a perspective view showing a state where the joint portion 9 is bent. It is possible to bend the joint part 9 in this way by rotating the rotating parts 11. As described above, since it is possible to rotate between the two rotating parts 11 up to about 30 degrees, in the configuration of FIG. 8 in which the three rotating parts 11 exist, the joint part 9 as a whole is about 90 degrees. It is possible to rotate up to.

  A brush 36 is formed under the suction head 12, and a suction port 41 is formed so as to be surrounded by the brush 36. The dust wiped off by the brush 36 is sucked from the suction port 41 and sent to the dust collecting chamber of the cleaner body 1.

  Next, the rotation parts 11 are fitted and connected as described above, and the rotation angle between the rotation parts 11 is approximately 0 degrees, that is, as shown in FIG. In a state where the two rotating portions are positioned substantially in a straight line, the protruding portion 35 is inserted deepest into the bottom groove portion 34 and is buried in the counterpart rotating portion 11 or is flush with the other surface.

As described above, when the rotating portions 11 are straight and substantially aligned, the protruding portion 35 is not exposed to the outside, so that the protruding portion 35 does not hit the hand when the user holds the rotating portion 11 portion. No discomfort to the user.
At this time, there is no problem even if the protruding portion 35 protrudes to such an extent that the finger does not feel uncomfortable.

  Subsequently, in this state, when the rotating portion 11 is rotated and the joint portion 9 is bent, as shown in FIG. 8, a part of the projecting portion 35 of the one rotating portion 11 is replaced with the other rotating portion 11. It is exposed to the outside from the bottom groove portion 34.

  The projecting portion 35 exposed to the outside partially closes the gap 42 generated at the valley portion between the rotating portions 11 due to the rotation, and acts so that a human finger does not enter.

  Therefore, by adopting such a configuration, not only can the rotation angle of the rotation unit 11 be increased, but also when the rotation unit 11 rotates, the user's finger moves the rotation unit 11. It is made not to be pinched by the gap 42 part which arises between.

  As shown in FIG. 9, if only the first rotating part 11 is bent, it bends about 30 degrees, and if the second rotating part 11 is bent, it bends to about 60 degrees. When 11 is bent, the joint portion 9 bends to about 90 degrees. In such a state where the bending angle is increased, the suction head 12 of the suction tool can be moved into the top of the top of the chest and the top of the air conditioner indoor unit. It is also possible to clean places that do not reach.

  In addition, the number of the rotation parts 11 can be increased any number. Increasing the number of rotating parts 11 makes it possible to further increase the turning angle and change the shape into an arbitrary shape, but increase the number of rotating parts 11. Since the joint portion 9 is too large and heavy, and the length of the joint portion 9 is long, the number of the rotating portions 11 is preferably 2 to 8, and the bending angle by one rotating portion 11 is also 5 degrees. -40 degrees is preferable. If the bending angle is increased too much, delicate angle adjustment cannot be performed, and if it is too small, many rotating parts 11 must be bent, which is complicated.

  FIG. 10 is a perspective view showing a state in which the suction head 12 is removed from the joint portion 9. A sliding groove 37 is formed at the distal end of the fixed portion 10 of the joint portion 9, and a notch groove 39 for fitting a convex portion 38 a of a notch member 38 to be described later into a part of the sliding groove 37. Is formed.

  On the other hand, holes 40 are formed on both side surfaces behind the suction head 12, and a notch member 38 can be inserted into the holes 40 on both side surfaces. Further, the notch member 38 is slidable on the sliding groove 37, and the convex portion 38a of the notch member 38 is fitted into the notch groove 39.

  If the tip of the joint portion 9 is simply inserted into the suction head 12, the suction head 12 easily falls out of the joint portion 9. For this reason, in the present embodiment, the two notch members 38 are slid on the sliding groove 37 of the joint portion 9 with the two notch members 38 inserted through the holes 40 of the suction head 12.

  For this reason, the suction head 12 can be rotated in the direction of the arrow CC ′ in FIG. 10 (clockwise or counterclockwise around the extending direction of the joint 9 as an axis) while being inserted into the joint 9. In addition, the suction head 12 is not easily removed from the joint portion 9.

  Further, the two notch members 38 slide on the sliding grooves 37, and the rotation can be restricted when the convex portions 38a of the respective notch members 38 are fitted into the notch grooves 39. Dust can be sucked in a state in which the convex portion 38 a of the notch member 38 is fitted in the notch groove 39, that is, in a state where the suction head 12 is fixed to the joint portion 9 at a predetermined angle.

  In this state, the user rotates the suction head 12 in the direction of the arrow CC ′ shown in FIG. 10 so that the convex portion 38a of the notch member 38 rides from the notch groove 39 to the sliding groove 37 and slides. Thus, the suction head 12 can be rotated with respect to the joint portion 9.

  Since the joint portion 9 and the notch member 38 are both formed of resin, for example, the convex portion 38a of the notch member 38 can run from the notch groove 39 to the sliding groove 37 by its elastic force. .

  Thus, in this Embodiment, it is possible to bend the suction tool 7 to a substantially L-shaped state by bending the joint part 9 as shown in FIG. 8, FIG. Further, as shown in FIGS. 2 and 10, the suction head 12 is moved in the direction of the arrow CC ′ with respect to the joint portion 9, that is, clockwise or counterclockwise about the extending direction of the joint portion 9 as an axis. It is possible to rotate.

  Further, as shown in FIGS. 2 and 10, the suction head 12 is moved in the direction of the arrow BB ′ with respect to the joint portion 9, that is, in the direction perpendicular to the extending direction of the joint portion 9. The suction head 12 can also be rotated, and the suction head 12 itself can be bent so as to be substantially L-shaped.

  As described above, in the present embodiment, it is possible to suck up dust at a high place, for example, on the chiffon, by bending the joint 9, and the suction head 12 is L-shaped with respect to the joint 9. By turning it into a shape. Dust can be easily sucked even in a narrow space.

  In addition, since the light emitting unit 13 is mounted on the tip of the suction head 12 according to the present embodiment, it is possible to illuminate dust even in a narrow and dark place.

  The present invention can be widely applied to household and commercial vacuum cleaners.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 7 Suction tool 8 Connection pipe part 9 Joint part 11 Rotation part 12 Suction head 13 Light emission part 14 Switch operation part 15 Outer extension pipe 16 Cover 18 Inner extension pipe 20 Operation button 21 1st protrusion 22 Spring 23 1st 1 locking portion 24 first groove portion 25 locking plate 26 second protrusion 27 third protrusion 28 first hole portion 29 inclined surface 30 notch 31 upper groove 32 lower groove 33 notch 34 bottom groove portion 35 protruding portion 36 brush 37 Slide groove 38 Notch member 39 Notch groove 40 Hole 41 Suction port 42 Clearance

Claims (2)

An expansion / contraction connection pipe part, a joint part having a plurality of rotating parts connected to the connection pipe part, and an electric blower that is rotatably connected to the joint part and is built in the vacuum cleaner body A suction head having a suction port for sucking dust with suction air,
The rotating part has three projecting parts on the lower side on one end side and three groove parts on the lower side on the other end side, and the joint part has two adjacent rotating parts on one shaft. Connected to each other, and is configured by combining two adjacent rotating parts with one shaft part as an axis,
In an unrotated state in which the two rotating portions are positioned on a substantially straight line, the three protruding portions of one rotating portion of the two rotating portions are connected to the three rotating portions of the other rotating portion. Inserted in the groove or in the same plane,
On the other hand, in a state where the two rotating parts are rotated and bent, a part of the three protruding parts of one rotating part of the two rotating parts is The three protrusions that are inserted from the three grooves so as to be exposed to the outside and are exposed to the outside so that the user's finger does not enter the gap between the two rotating parts. The suction tool.   The vacuum cleaner provided with the suction tool according to claim 1, wherein the suction port communicates with an electric blower that generates suction air contained in a vacuum cleaner body.

Images