JP2014008303A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner, capable of improving user friendliness of a hand operation pipe and inhibiting foreign matter from being caught.SOLUTION: A vacuum cleaner includes: a cleaner body having a built-in electric blower; and a bellows hose, one end of which is communicated with the cleaner body, and to which an extension pipe, a suction port and the like can be connected at the other end. The bellows hose includes: a hose; a connection pipe, one end of which can be connected to the cleaner body and the other end of which is connected to one end of the hose; and a hand operation pipe 103, one end of which the extension pipe, the suction port and the like can be connected to, and the other end of which is connected to the other end of the hose. The hose is rotatable to the hand operation pipe, and the hand operation pipe has a closed area. The outside part of the lower surface part of the hand operation pipe which constitutes the closed area and is located at the hose side is provided with a projecting part A302 projected to the hose side over the lower surface part of the hand operation pipe and a projecting part B303 projected to the hose side more than the projecting part A and narrower than the projecting part A.

Description

  The present invention relates to a vacuum cleaner provided with a hand control tube.

  Conventionally, a general vacuum cleaner has a vacuum cleaner main body, a hose with one end connected to the vacuum cleaner main body, a hand control tube with one end connected to the other end of the hose, and one end with a hand control tube. An extension pipe connected to the end, and a suction tool detachably attached to the other end of the extension pipe are configured. The hose includes a hand operation tube and a communication tube integrally formed with the hand operation tube. Dust sucked from the suction tool is sucked into the cleaner body through the extension pipe, the communication pipe, and the hose. The hand control tube is provided with a hand switch for operating a switch of an electric blower provided in the cleaner body. The vacuum cleaner can be operated and stopped, and the suction force can be controlled by the hand switch.

  In the electric vacuum cleaner of Patent Document 1, rotating tubes are formed at both ends or one end of the hose. The rotating tube can smoothly rotate the hose with respect to the main body connecting portion and / or the hand control tube. It is described that according to such a vacuum cleaner, the operability of the hand control tube is improved and the usability is improved.

JP 2007-252695 A

  By the way, when a clearance gap arises between a hand control pipe and a hose, there exists a possibility of pinching a foreign material. Even when a convex part is provided on the hand control tube or hose to prevent foreign matter from entering, a soft foreign substance that deforms into a shape smaller than the gap is sandwiched between the convex part and the hose. There is a risk of hindering improvement in usability by rotating with respect to the hand control tube.

  An object of this invention is to provide the vacuum cleaner which can improve the usability of a hand control tube, and can suppress the pinching of a foreign material.

A vacuum cleaner body having a built-in electric blower, and a vacuum cleaner provided with a hose kumi that has one end communicating with the main body of the vacuum cleaner and an extension pipe or a suction port connected to the other end. Connectable to the vacuum cleaner body, the other end is connected to one end of the hose, the other end is connected to the extension pipe, the suction port, and the other end is connected to the other end of the hose A hand operated tube, wherein the hose is rotatable with respect to the hand operated tube, the hand operated tube has a closed region, constitutes the closed region, and the hose side A convex portion A that protrudes to the hose side from the lower surface portion of the hand operating tube, and protrudes to the hose side from the convex portion A, and is wider than the convex portion A. And a narrow convex portion B.

  In addition, a hose cover that covers the vicinity of the other end of the hose and is rotatable with respect to the hand operating tube integrally with the hose is provided, and the lower surface portion of the hand operating tube is provided on the hose cover and the hose. The gap between the hose cover is narrower than the gap between the hose cover and the convex portion B at a position facing the edge and facing the end of the hose cover outside the lower surface portion of the hand control tube. The convex part C narrower than the part B was provided.

  The hose cover has a tapered shape with a diameter that decreases from the other end side of the hose toward the one end side of the hose, and the convex portion B has a shape along the tapered shape.

  Further, an end portion of the hose in the hose cover is protruded toward the lower surface of the hand operating tube, and a gap between the end portion of the hose in the hose cover and the convex portion C is It is narrower than the gap between the tapered shape and the protrusion B.

  A vacuum cleaner body having a built-in electric blower, and a vacuum cleaner provided with a hose kumi that has one end communicating with the main body of the vacuum cleaner and an extension pipe or a suction port connected to the other end. Connectable to the vacuum cleaner body, the other end is connected to one end of the hose, the other end is connected to the extension pipe, the suction port, and the other end is connected to the other end of the hose A hand operated tube, wherein the hose is rotatable with respect to the hand operated tube, the hand operated tube has a closed region, constitutes the closed region, and the hose side A convex portion A that protrudes to the hose side from the lower surface portion of the hand operating tube, and protrudes to the hose side from the convex portion A, and is wider than the convex portion A. A narrow convex portion B, and Even when a gap is generated between the original operation tube and the hose, the protrusion B prevents foreign matter from entering between the hand operation tube and the hose, and the protrusion does not protrude from the protrusion B. By A, a soft foreign object that is deformed to a shape smaller than that between the convex portion B and the hose is prevented from entering between the hand operating tube and the hose, and between the convex portion B and the hose. It is possible to prevent the foreign matter from being caught.

  In addition, a hose cover that covers the vicinity of the other end of the hose and is rotatable with respect to the hand operating tube integrally with the hose is provided, and the lower surface portion of the hand operating tube is provided on the hose cover and the hose. The gap between the hose cover is narrower than the gap between the hose cover and the convex portion B at a position facing the edge and facing the end of the hose cover outside the lower surface portion of the hand control tube. By providing the convex part C narrower than the part B, it is possible to improve the strength of the rotatable hose attachment part and to prevent foreign matter from being caught between the hose cover and the convex part C. .

  Further, the hose cover has a tapered shape with a diameter becoming narrower from the other end side of the hose toward one end side of the hose, and the convex portion B has a shape along the tapered shape, thereby reducing the floor surface. When cleaning and using the hand control tube until it is substantially parallel to the floor surface, a gap is formed between the hose and the floor surface, so the area and frequency with which the hose contacts the floor surface is reduced. In addition, the usability can be improved and the possibility that the hose is broken due to friction between the hose and the floor surface can be reduced. Moreover, it can prevent that a foreign material enters between the said operation tube and the said hose by the structure where the said convex part B followed the said taper shape.

  Further, an end portion of the hose in the hose cover is protruded toward the lower surface of the hand operating tube, and a gap between the end portion of the hose in the hose cover and the convex portion C is Narrower than the gap between the taper shape and the convex part B prevents the hose and hose attachment part from being damaged due to excessive stress when the operator accidentally drops the hand control tube onto the floor. In addition, the strength of the rotatable hose attachment portion can be further improved.

  ADVANTAGE OF THE INVENTION According to this invention, the improvement of the usability of a hand operation tube can be aimed at, and the vacuum cleaner which can suppress pinching of a foreign material between a hand operation tube and a hose can be provided.

It is an appearance perspective view showing the whole vacuum cleaner concerning one embodiment of the present invention. It is an external appearance perspective view of a hand operation tube. It is an external appearance side view of a hand operation tube. FIG. 4 is a detailed view of part D in FIG. FIG. 4 is a cross-sectional view taken along line EE in FIG. It is an external appearance perspective view of a lower surface cover. FIG. 5 is a perspective view showing a state where a small foreign object enters between a hand operating tube lower surface portion 301 and a hose 104. FIG. 10 is a perspective view illustrating a state where a soft foreign object that is deformed into a shape smaller than that between the convex portion B and the hose enters between the lower surface portion 301 of the hand control tube and the hose 104.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. However, the present invention is not limited to the following embodiments.

  In the following description, the front-rear direction refers to the upstream side of the air sucked by the cleaner body 107 with respect to the cleaner body 107 as the front side, and the downstream side as the rear side. Further, the front-rear and up-down directions in the hand control tube 103 constituting the vacuum cleaner of the present invention, the left represents the front side in the state shown in FIG. 3, the right represents the rear side, the upper in the state shown in FIG. The bottom is the bottom.

  As shown in FIG. 1, the vacuum cleaner of this embodiment includes a vacuum cleaner main body 107, a hand operation tube 103, a hose kumi 106 including a hose 104 and a connection tube 105, an extension tube 102, and a mouthpiece 101. It is configured. An opening communicating with one end of the connecting pipe 105 is provided in the front portion of the cleaner body 107. The other end of the connecting pipe 105 and one end of the hose 104 are connected. The other end of the hose 104 and one end of the hand control tube 103 are connected. The other end of the hand operation tube 103 and one end of the extension tube 102 are connected. The other end of the extension tube 102 and the suction body 101 are connected.

  The vacuum cleaner main body 107 includes an electric blower (not shown) that generates a suction force, a dust collection unit that stores dust accumulated by the suction force of the electric blower, and the like.

  When sucking the dust accumulated on the surface to be cleaned, the dust is sucked from the mouthpiece 101, and the dust passes through the hand control tube 103 through the extension tube 102 and is collected in the cleaner body 107 through the hose 104. Be dusted. The extension tube 102 has a telescopic structure that can be freely adjusted in length so that the operator can easily use it.

FIG. 2 shows the hand control tube 103. The hand control tube main body 201 is formed of a cylindrical portion 208 that is connected to the extension tube 102 and through which dust passes. An upper cover 202 configured to cover the operation tube main body 201 is provided on the upper portion of the operation tube main body 201 and includes a switch base described later and an attachment / detachment button 205 for attaching / detaching the extension tube 102. On the rear side of the upper cover 202, a grip portion 209 that is gripped by an operator's hand is provided, and the upper cover 202 and the grip portion 209 are integrally formed. One end of the hand operation tube 201 can be connected to the extension tube 102, and the other end of the hand operation tube body 201 is provided with one end of a cylindrical hose cover 206. A part of the grip part 209 is located on (opposites) the operation pipe body 201 with respect to the operation pipe body 201, and the other part of the grip part 209 is located on the hose cover 206 and a part of the hose. (So as to face each other). In order to operate the vacuum cleaner main body 107, the hose cover 206 starts operation by pressing a hand switch 204 provided on the upper cover 202, and the hand switch 204 also performs adjustment of suction force and operation stop. A hose 104 is provided on the rear side of the hand control pipe main body 201 to convey dust to the cleaner main body 107.
Further, the hand operation tube main body 201 and the hose 104 are configured to be rotatable relative to each other by a rotating tube included in the hand operation tube 201. A hose cover 206 for covering the rotary tube is provided on the hand control tube main body 201 side of the hose 104. The hose cover 206 rotates integrally with the hose 104 with respect to the operation tube main body 201. As described above, the hose 104 and the hose cover 206 rotate integrally with the hand control tube main body 201, thereby improving the operability of the hand control tube and providing a vacuum cleaner that improves usability. it can.

  The storage hook 207 is hooked to the tip of the extension tube 102 or various parts when the extension tube 102 and the hand control tube 103 are removed when the vacuum cleaner is stored.

  FIG. 3 is a side view of the hand operation tube 103. The hand operating tube main body 201 forms a closed region by the grip portion 209 and the hand operating tube lower surface portion 301. The hand control tube lower surface portion 301 is a substantially plate-like portion located between the grip portion 209 and the hose 104 or hose cover 206. The grip portion 209 and the hand control tube lower surface portion 301 form an annular shape that is substantially triangular when viewed from the side. A portion surrounded by the ring shape is a closed region. When the operator grips and uses the grip part 209 by the closed area, it is not necessary to hold the hand operating tube 103 with a strong gripping force, and it is easy to use. Since there is a part surrounded by an annular shape as the closed area, the operator's hand may fall off the hand control tube 103 even if the hand slips when pulling it toward the operator side, especially when operating the mouthpiece 101 back and forth There is no. Further, since the closed region is constituted by the hand operating tube lower surface portion 301 and the grip portion 209, the strength of the grip portion 209 is improved.

  A trigger 306 is provided inside the closed region, and the above-described expansion / contraction release of the extendable tube 102 and locking of the extension tube 102 in the expanded state or the contracted state can be operated by the trigger 306. . The operator generally operates the trigger 306 using the index finger. When the trigger 306 is operated, the number of fingers holding the grip portion 209 is reduced. Therefore, when there is no closed area and there is only the grip, there is a possibility that the hand operating tube 103 may drop from the operator's hand. Therefore, even if the hand slips, the hand control tube 103 does not fall out of the hand. In this embodiment, the function of the trigger 306 is to cancel the expansion / contraction of the extension tube 102 and to lock the extension tube 102 in the extended state or the contracted state. However, as another embodiment, the extension tube 102 is operated by operating the trigger 306. It is also possible to have a function of releasing the locking of the hand control tube 103. As another example, the trigger 306 may be operated to release the locking between the extension tube 102 and the suction body 101.

  In FIG. 3, the cylindrical portion 208 of the hand control tube main body 201 that is connected to the extension tube 102 and through which dust passes is straight in the direction of the center line G, and the hose 104 that rotates integrally with the hose cover 206 is also included. A straight line is formed in the direction of the center line G. Conventionally, if the flow path is curved between the cylindrical portion 208 and the hose 104, the suction force is reduced, and the dust flowing through the inside collides with the inner wall, so that there is a high possibility that the dust adheres. Also, when cleaning the floor surface, the extension tube 102 may be lowered until it is substantially parallel to the floor surface.At this time, if the tubular portion 208 and the hose 104 are bent at an angle, the hose 104 There is a possibility that the hose 104 may be broken due to friction between the hose 104 and the floor surface due to poor contact with the floor surface. In this embodiment, the cylindrical portion 208 and the hose 104 are configured in a straight line in the direction of the center line G, and since there is no curved portion, the vacuum cleaner's suction force is not reduced and the vacuum cleaner has a strong suction force. Machine can be provided. Moreover, since there is little possibility that the dust flowing inside collides with the inner wall, the adhesion of the dust is small.

In this embodiment, the hose 104 is thinner than the hand control tube main body 201, and the hose cover 206 has a tapered shape 305 that becomes thinner from the front side toward the rear side. As a result, when the extension pipe 102 is lowered to be substantially parallel to the floor surface when the floor surface is cleaned, a gap L is generated between the hose 104 and the floor surface, so that the hose 104 contacts the floor surface. The area and frequency are reduced, the usability of the vacuum cleaner is improved, and the possibility that the hose 104 is broken due to friction between the hose 104 and the floor surface can be reduced.
FIG. 7 is a diagram illustrating a state in which a small foreign object enters between the hand control tube lower surface portion 301 and the hose 104. A convex portion B303 is provided on the lower surface portion 301 of the hand operation tube, and the protrusion B can prevent foreign matter from entering between the hand operation tube and the hose.
FIG. 4 is a diagram showing details of a D portion in FIG. FIG. 5 is an EE cross section in FIG. A gap P between the lower end portion of the convex portion B303 provided on the lower surface portion 301 of the hand operation tube and the hose cover 206 is set to be minimum near the approximate center of the arc of the hose cover 206. For example, the minimum portion of the gap P is set to an appropriate dimension of approximately 2 mm. Further, the end R1 of the convex portion B303 is approximately 1.4 mm so as to ensure an appropriate space. As a result, even if the operator rotates the hose cover 206 clockwise or counterclockwise with a small foreign object as shown in FIG. 7, the foreign object is caught in the gap between the lower surface portion 301 of the hand control tube and the hose cover 206. It is possible to provide a vacuum cleaner capable of suppressing the above.
In addition, the convex portion B303 has a shape along the tapered shape of the hose cover 206, and can improve the mounting strength of the hose cover 206, and is approximately 2 mm which is an appropriate dimension of the gap P between the convex portion B303 and the hose cover 206. Therefore, it is possible to provide a vacuum cleaner that can prevent the foreign object from being caught.

  However, if the hose cover 206 is rotated so as to sandwich a soft foreign object that deforms to a shape smaller than between the convex portion B and the hose as shown in FIG. is there. Therefore, a convex portion A302 that does not protrude from the convex portion B303 is provided on the lower surface portion 301 of the hand operation tube to prevent a soft foreign matter that is deformed into a small shape from entering between the hand operation tube and the hose. The foreign matter can be prevented from being sandwiched between the convex portion B and the hose. For example, the gap Q between the convex portion A302 and the hose cover 206 is set to an appropriate dimension of approximately 6 mm. Further, the end portion R2 of the convex portion A302 is set to about 1 mm that can secure an appropriate space. As a result, the operator rotates the hose cover 206 counterclockwise even if the hose cover 206 is rotated clockwise so as to sandwich a soft foreign material that deforms the hose cover 206 into a shape smaller than that between the convex portion B and the hose as shown in FIG. However, since the foreign matter hits the convex portion A302, the foreign matter does not reach the gap P, and a vacuum cleaner capable of suppressing the foreign matter from being caught can be provided.

  Further, a distance S from the width direction end portion of the convex portion A302 to the width direction portion of the convex portion B303 is provided. For example, the distance S is set to an appropriate dimension of approximately 1.5 mm. By providing the distance S, even if the operator rotates the hose cover 206 clockwise or counterclockwise while holding the hose cover 206 as shown in FIG. It is possible to provide a vacuum cleaner that is capable of preventing foreign objects from being caught and preventing the foreign objects from being caught.

  A convex portion C304 in which the gap between the hose cover 206 and the hose cover 206 is narrower than the gap P between the hose cover 206 and the convex portion B303 is provided at a position facing the end portion of the hose cover 206 in the lower surface portion 301 of the hand operation tube. The convex portion C304 has a structure that comes into contact with the hose cover end 307 when the hose cover 206 is deformed. Thereby, even if the operator should release the grip part 209 and fall to the floor, the hose cover 206 can be prevented from being deformed, so that the mounting strength of the hose cover 206 can be improved.

However, there is a possibility that foreign matter may be caught in the gap between the convex portion C304 and the hose cover end portion 307.
Therefore, in this embodiment, the width T of the convex portion C304 is made sufficiently smaller than the width U of the convex portion A302. As a result, even if the operator holds the hose cover 206 and rotates the hose cover 206 clockwise or counterclockwise, the foreign matter does not reach the convex portion C304 by hitting the convex portion A, and the foreign matter is caught in the convex portion C304. It is possible to provide a vacuum cleaner capable of suppressing the above.
Incidentally, a lower cover 203 as shown in FIG. 6 may be provided on the lower surface portion 301 of the hand operation tube, and the convex portion A302, the convex portion B303, and the convex portion C304 may be arranged on the lower cover 203. Providing the lower cover 203 makes it easy to form the projections A302 and B303 that are difficult to manufacture integrally with the hand control tube body 201. In addition, the cross section of the lower part 301 of the hand control tube is substantially C-shaped downward, and the lower cover 203 is inserted into the inside, so that the hose cover 206 contacts the lower cover 203 while rotating. However, the lower cover 203 does not shift in the left-right direction in FIG. Furthermore, the strength of the lower surface of the hand control tube 301 can be improved.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement with a various form.

101 mouthpiece
102 Extension pipe
103 Hand control tube
104 hose
105 Connection pipe
106 Horse Kumi
107 Vacuum cleaner body
201 Hand control tube
202 Top cover
203 Bottom cover
204 Hand switch
205 Detachable button
206 Hose cover
207 Storage hook
208 Tube
209 Grip part
301 Lower side of hand control tube
302 Convex A
303 Convex B
304 Convex C
305 Hose cover taper shape
306 Trigger
307 Hose cover end

Claims (5)

In a vacuum cleaner body with a built-in electric blower, a vacuum cleaner with a hose kumim that is connected to the vacuum cleaner body at one end and an extension pipe or a suction port at the other end,
The hose kumi can be connected to a hose, one end can be connected to the cleaner body, the other end can be connected to one end of the hose, one end can be connected to the extension pipe, the suction port, etc. A hand operating tube having an end connected to the other end of the hose, and
The hose is rotatable with respect to the hand control tube,
The hand control tube has a closed region;
A convex portion A that constitutes the closed region and that protrudes to the hose side from the lower surface portion of the hand operating tube, outside the lower surface portion of the hand operating tube that is positioned on the hose side, and the hose that protrudes from the convex portion A A vacuum cleaner characterized in that a convex portion B that protrudes to the side and narrower than the convex portion A is provided. In the vacuum cleaner according to claim 1,
Covering the vicinity of the other end of the hose, and providing a hose cover that is rotatable with respect to the hand control tube integrally with the hose,
The lower surface portion of the hand control tube faces the hose cover and a part of the hose,
The gap between the hose cover and the projection B is narrower than the gap between the hose cover and the projection B at a position facing the end of the hose cover outside the lower surface of the hand control tube, and wider than the projection B. A vacuum cleaner characterized by having a narrow convex part C. In the vacuum cleaner according to claim 1 and 2,
The hose cover has a tapered shape with a diameter that decreases from the other end of the hose toward one end of the hose.
The convex portion B has a shape along the tapered shape. In the vacuum cleaner according to claim 3,
The end of one end of the hose in the hose cover protrudes toward the lower surface of the hand control tube, and the gap between the end of the hose on one end of the hose cover and the convex portion C is tapered. And a vacuum cleaner characterized by being narrower than the gap between the convex portions B. In the vacuum cleaner according to claim 4,
The outside of the lower surface of the hand control tube has a lower surface cover,
The vacuum cleaner, wherein the lower surface cover includes the convex part A, the convex part B, and the convex part C.