JPS62114518A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electric cleaning, and more particularly to a connection structure for a suction hose to a vacuum cleaner body.

[Conventional technology]

Conventionally, as a connection structure for a suction hose to a vacuum cleaner body, for example, a substantially cylindrical connection port is provided horizontally on the vertical front surface of the vacuum cleaner body to communicate the egg collection chamber with the outside. A structure is adopted in which a connecting pipe portion on the main body side of a straight, substantially cylindrical hose is fitted and connected to this connecting port portion. That is, in this structure, the direction of the connection pipe portion of the hose with respect to the cleaner body is fixed in one horizontal direction.

In addition, as shown in Japanese Patent Application Laid-Open No. 60-132533, the front surface of the vacuum cleaner body is formed into an inclined surface, and a cylindrical connection that is perpendicular to the direction of inclination, that is, inclined upward, is provided on this inclined surface. There is also a structure in which a mouth is provided and a straight hose connection pipe is connected to the slanted connection mouth. That is, in this structure, the connecting pipe portion of the hose is fixed to the cleaner body in a state facing upward at a certain angle.

Also, Utility Model Application No. 60-94152, Utility Model Application No. 60-9
As shown in Japanese Utility Model Application Publication No. 7560, Japanese Utility Model Application No. 60-97562, and Japanese Utility Model Application Publication No. 60-101051, a connecting port is provided on the top surface of the vacuum cleaner body so as to be able to rotate freely in the horizontal direction. A structure is also adopted in which a connecting pipe portion of a hose bent at a substantially right angle is fitted and connected to the mouth portion. That is, in this structure, the direction of the connecting pipe portion of the hose relative to the cleaner body can be changed only within a substantially horizontal plane.

Furthermore, as shown in Japanese Utility Model Publication No. 48-5531, a vertical cylindrical connection port is provided on the top surface of the vacuum cleaner body, and a hose connection pipe portion bent at a substantially right angle is attached to the connection port. In addition to the fitting connection, a structure is also adopted in which the direction of the hose connection tube relative to the vacuum cleaner body can be changed only in a substantially horizontal plane using a rotating part provided on the connection tube of the hose. .

[Problem that the invention seeks to solve]

By the way, when removing the hole, for example, connect the extension pipe and the suction port body to the hand grip provided on the opposite side of the connecting pipe part of the hose, and connect the vacuum cleaner from the suction port body through the extension pipe J3 and the hose. Dust is sucked into the dust collection chamber of the main unit. At this time, although the hose has flexibility,
In MIA, such as the vacuum cleaner of Publication No. 0-132533, in which the direction of the connecting tube of the hose is fixed relative to the vacuum cleaner body, if the vacuum cleaner body is not moved, the suction port connected to the hose There was a problem that it was difficult to clean because the body could not be directed over a wide area.

Also, Utility Model Publication No. 60-101051 or Utility Model Publication No. 4
In the vacuum cleaner shown in Publication No. 8-5531, the direction of the connecting pipe of the hose relative to the main body of the vacuum cleaner can be freely changed in the horizontal plane, but cannot be changed in the vertical direction. In addition to making it difficult to clean high places, the short hose is easily damaged if it is forcibly bent. Furthermore, in order to move the vacuum cleaner body while cleaning, the hand grip of the hose is grasped and pulled, but at this time, the vacuum cleaner body does not move and only the hose rotates horizontally. There was also the problem that the main body of this vacuum cleaner was prone to tipping over because of its poor tracking ability.

Furthermore, if the connecting pipe of the hose is bent at a substantially right angle, that is, if the connecting pipe is bent at a substantially right angle, the air path resistance becomes large. There was a problem that the suction performance deteriorated significantly.

An object of the present invention is to be able to change the direction of the connecting pipe on the main body side of the hose with respect to the vacuum cleaner body not only horizontally but also vertically, so that it can be used from low places such as the floor to high places such as the ceiling. To provide a vacuum cleaner that can easily clean a wide area, has good travel followability when moving the vacuum cleaner body by pulling a hose, and can reduce the drop in suction performance. .

[Means for solving problems]

The vacuum cleaner of the present invention has a built-in electric blower, a dust collection chamber that communicates with the electric blower, and a connection port that communicates the dust collection chamber with the outside. The main body and
and a hose forming a connecting pipe connected to the connecting port of the vacuum cleaner main body, and an inclined surface that descends forward is formed on the outer surface of the vacuum cleaner main body, and the connecting port is connected to this slope. The hose is provided with a bent portion on the connecting pipe portion of the hose on the side of the vacuum cleaner body, and the hose rotates in the circumferential direction with respect to the vacuum cleaner body with a rotation axis approximately perpendicular to the inclined surface of the hose. It is something that can be freely done.

[Effect]

In the vacuum cleaner of the present invention, a connecting pipe portion on the main body side having a bent portion of the hose is connected to a connecting port provided on an inclined surface descending toward the front of the outer surface of the vacuum cleaner main body, and Due to the rotation of the rotation part provided on the connection pipe part of the hose or the rotation of the connection port itself, the hose rotates in the circumferential direction in a direction approximately perpendicular to the slope with respect to the vacuum cleaner body, such as 1rIIh. By doing so, the connecting pipe portion that connects the bent portion of the hose to the right side of the vacuum cleaner body changes direction not only horizontally but also vertically.

[Actual Example] The structure of an embodiment of the vacuum cleaner of the present invention will be described with reference to FIGS. 1 and 2. FIG.

Reference numeral 1 denotes a vacuum cleaner main body, which is composed of a main body case 3 having an opening 2 formed on the front side of the upper surface, and a removable lid body 4 for opening and closing the opening 2 of the main body case 3.

The inside of the main body case 3 is divided into front and rear parts by a partition wall 6 provided approximately at the center thereof and having a communication port 5. An electric blower 7 is disposed in a space behind the partition wall 6J. At the same time, the space in front of the partition wall 6 serves as a dust collection chamber 8 having the opening 2 on the upper surface. Further, a clamp 10 biased by a spring 9 is pivotally attached to the front surface of the main body case 3, and an engagement hole 11 is formed at the rear edge of the opening 2. .

Further, at the bottom of the main body case 3, wheels 1 for moving the cleaning keyaki main body 1 are provided on the rear side of both sides and the front side of the lower surface.
2atj, J: and a swing ring 12b are each rotatably provided.

The lid body 4 is formed in a thin picture shape with an open bottom surface,
A front locking part 13 is formed on the front edge of the clamp 10 to which the clamp 10 is removably engaged through rotational movement, and a rear locking part 13 is formed on the rear edge of the clamp 10 to be engaged with the engagement hole 11 of the main body case 3. A rear side locking portion 14 is formed which is removably engaged and has a cross-section shape. Further, a backing 15 is provided on the lower peripheral edge of the lid 4 and is brought into airtight contact with the peripheral edge of the opening 2 of the main body case 3.

The front side of this lid body 4 is formed with an inclined surface 16 that descends toward the front, and a short cylindrical holding portion 17 that is perpendicular to the direction of inclination is integrally formed on this inclined surface 16. An annular stepped portion 18 having a cross-sectional shape is formed at the periphery of the upper end surface of the cylindrical holding portion 17 in the drawing. In addition, inside this lid body 4, the inclined surface 1 is formed from the rear side of the upper surface.
An inner wall 19 is formed which extends parallel to the inner wall 6 to the front side of the lid body 4 and is bent vertically from there to reach the front edge of the inclined surface 16. A short cylindrical insertion part 20 is formed in this inner wall 19, and an annular holding part 21 having a U-shaped cross section is formed surrounding this cylindrical insertion part 20. An annular backing 22 is fitted and held on the lower surface side of the holding portion 21 . Moreover, the front surface of the inner wall 19 has a cross section 11! (A 1-character-shaped 1-joint stepped portion 23 is formed.

Further, the main body case 3 is provided with a mouth frame holder 24 that is opposed to the inner wall 19 of the main body case 3 with a small gap when the lid body 4 is attached to the main body case 3.

And, between the inclined surface 16 and the inner wall 19 of the lid body 4,
A connection port body 31 is rotatably provided. This connection port body 31 includes a substantially disk-shaped first connection port member 33 having a cylindrical connection port portion 32 in the center, and a first connection port member 33 having a cylindrical connection port portion 32 in the center thereof.
The first connection port body member 3 has a substantially cylindrical tubular portion 34 in the center thereof, which faces the outer peripheral surface of the first connection port member 3 with a small gap therebetween.
3 with a screw 35, and the connection port part 3 of these connection port members 33 and 36.
2 and the backing 3 held between the lower end of the cylindrical part 34
It consists of 7.

A four part 38 is formed on the upper surface side of the connection port part 32, and a locking hole 40 is formed in the side surface of this recessed part 38. Further, on the upper surface of the second connection port member 36,
A short cylindrical outer guide wall 41 is formed protruding from the peripheral edge thereof, and a shorter cylindrical inner guide wall 42 is formed protrudingly located inside the outer guide wall 41. Further, the backing 37 has an annular lip portion 43 formed on its lower peripheral edge, and an annular protrusion 44 formed on its inner peripheral surface. and,
In this connection port body 31, the upper surface peripheral edge of the first member 33 is rotatably fitted into the annular step portion 18 of the inclined surface 16 of the lid body 4, and the inner guide wall 42 of the second member 36 is the lid body 4
is rotatably fitted into the cylindrical holding part 17 of the backing 37, and the annular lip part 43 of the backing 37 is rotatably abutted on the annular holding part 21 of the inner wall 19 of the lid body 4. It is rotatably attached to 4. In this state, the connection port 32
(Also, the outer guide wall 41 of the connection port 31 is slidably abutted on the fitting step 23 of the inner wall 19 of the lid 4. .

51 is a dust collection filter, bag-shaped a! It consists of a shrine 52 and a mouth frame 54 which is installed on the opening side of the bag-like filter medium 52 and has a dust collection port 53 formed therein. The lid body 4 is inserted into the mouth 53.
With the cylindrical insertion portion 20 of the inner wall 19 inserted, the mouth frame 54 is held between the inner wall 19 and the mouth frame holder 24 of the main body case 3, so that it can be freely attached and detached into the dust collection chamber 8. It is designed to be installed on the

Further, an auxiliary filter 55 is detachably attached to the front surface of the partition wall 6 of the main body case 3.

Reference numeral 61 denotes a hose, such as a bellows-shaped hose body 62, which is provided at one end of the hose body 62, and a cylindrical connecting pipe part 63, which is the end on the body 1 side, and the hose 61, which is provided at one end of the hose body 62. It consists of a hand grip part (not shown) provided at the end of the main body 62 and to which an extension tube or the like is connected.

The connecting pipe portion 63 is bent at approximately the center thereof, and a cover unit 66 having a built-in movable clamp 65 is attached to the outer peripheral surface on the side closer to the cleaner main body 1 than the bent portion 64 . The clamp 65 has an operating part G1 projecting outward from the cover unit 66, a locking claw part 68 that is inserted into and removed from the locking hole 40 of the connection port 31, and a spring 69. is urged outward by.

Next, the operation of this embodiment will be explained.

During cleaning, by fitting the lower end of the connecting pipe section 63 of the hose 61 into the connecting port section 32 of the cleaner main body 1,
This hose 61 is connected to the vacuum cleaner main body 1.

That is, as the connecting pipe portion 63 is fitted into the connecting port portion 32, the lower end portion of the cover unit 6G is inserted into the four portions 38 of the connecting port body 31.
The locking claw portion 69 of the clamp 65, which is fitted into the connection port body 3 and urged by the spring 70, engages the connection port body 3 through reciprocating motion.
The hose 61 is inserted into the connecting hole 40 of No. 1, and the hose 61 is maintained in a connected state. In this state, the end of the hose 61 is brought into contact with the annular protrusion 44 of the backing 37.

J3, when removing the hose 61 from the vacuum cleaner main body 1, push the operating part 67 of the clamp 65, pull out the locking claw part 68 from the locking hole 40 of the connection port body 31, and then remove the connection pipe part 63 of the hose 61. from the connection port 32.

Further, an extension pipe and a suction port are detachably connected to the hand-held portion of the hose 61 in sequence.

Then, by driving the electric blower (ring 7), dust is sucked in from the suction port body, guided to the collection chamber 8 of the vacuum cleaner body 1 via the extension pipe and hose 61, and stored in the dust collection filter 51. At this time, the user moves the suction port body over the surface to be cleaned while grasping the hand grip portion of the hose 61.

At this time, the connection port 32 is provided on the inclined surface 16 of the lid body 4 and is inclined upward toward the front, and the connection pipe portion 63 of the hose 61 that is fitted and connected to the connection port 32 is bent, so as the connection port body 31 rotates with the rotation axis a in the direction perpendicular to the inclined surface 16, the tip side of the connection pipe portion 63, that is, the side closer to the hose body 62 than the bent portion 64, The connecting port portion 32 swings around its axis, and its direction changes not only horizontally but also vertically. As shown in FIG. 4, if the inclination angle of the inclined surface 1G of the cleaning chamber main body 1 with respect to the horizontal plane is α, and the bending angle of the bent portion 64 of the hose 61 is shifted from T, then the horizontal plane on the distal end side of the connecting pipe portion 63 The elevation angle with respect to
It will vary within the range of 60-2γ.

In this way, the direction of the tip side of the connecting pipe part 63, which is the end of the hose 61 on the cleaner body 1 side, can be changed not only horizontally but also vertically with respect to the sludge remover body 1. This makes it possible to easily and efficiently clean large areas in the horizontal and vertical directions, such as wide floors, walls, and ceilings.

By the way, the bending angle γ of the bending portion 64 of the hose 61 is
In order to reduce the wind path resistance there, it is desirable to keep the angle close to 180°. Further, the hose 61 rotates as the hand grip portion is gripped and moved, and in order to improve the ability to follow the rotation of the hose 61 at that time,
It is desirable that the bending angle γ of the bending portion 64 of the hose 61 be relatively large. Furthermore, (hanging rock body 1
When moving the hose 61 during cleaning, the hand grip part of the hose 61 is grasped and pulled, but in order to make the cleaning b1 body 1 good in following the movement, the inclination angle α of the inclined surface 16 must be adjusted. It is better that the bending angle r of the bending portion 64 of the hose 61 is larger to some extent. Further, in order to efficiently perform cleaning in the vertical direction, it is desirable that the direction of the distal end side of the connecting pipe portion 63 of the hose 61 changes from a state of approximately horizontal or a depression angle of about 10° to a state of a somewhat large elevation angle.

In order to satisfy all of the above conditions, the maximum elevation angle β relative to the horizontal plane should be within a range of approximately 40° to 120°.

For example, if the depression angle δ is shifted by 10°, β-270-α-γ
, δ-1 (γ-α-90), so 40≦β≦
The necessary condition for being 120 is 35≦α≦75.11
5≦γ≦155. That is, it is sufficient that the inclination angle α of the inclined surface 16 is within the range of approximately 35° to 75°, and the bending angle γ of the bent portion 64 is within the range of approximately 115° to 155°.

Further, as shown in FIGS. 1 and 2, the bent portion 64 of the hose 61 is curved smoothly, but by drawing it in this way, the bent portion 64
It is possible to reduce the air resistance in the air passage, prevent deterioration of suction performance, and achieve the following: 1. Noise can be reduced. By increasing the bending angle γ of the bending part 64, the curvature of the bending part 64 can be made smaller when the connecting pipe part 63 is injection molded with synthetic resin, so that loss of suction performance and noise can be reduced. .

Next, another embodiment of the present invention will be described with reference to FIG. Note that the same reference numerals are given to the parts structurally corresponding to those of the previous embodiment, and the explanation thereof will be omitted.

In this embodiment, the connection port 71 is formed integrally with the inclined surface 16 of the benefit body 4.

On the other hand, the connecting tube section 72 of the hose 61 includes a connecting tube 73 that is fitted and connected to the connecting port section 71, and a tube that is rotatably connected to one end of this connecting tube 73 and has a narrow end connected to the hose main body 62. It consists of a rotating tube 74 as a moving part. and,
The rotating tube 74 is provided with a bent portion 75, and the connecting tube 73 is provided with a cover unit 66 and a clamp G5. Further, the upper side of the connecting pipe 73 in the drawing has a stepped portion 76.
When the lower side of the connecting pipe 73 is fitted into the connecting port 71 of the vacuum cleaner main body 1, the stepped portion 76 comes into contact with the upper edge of the connecting port 71. It is now possible to do so. Further, a flange portion 7 is provided at the end of the rotary tube 74 on the connecting tube 73 side, and is rotatably fitted into the stepped portion 76.
7 is formed, and this flange portion 77J:
An annular groove 78 is formed on the outer circumferential surface at an upper position. The protrusion 79 formed on the cover integral 66 is
The connecting tube 73 is properly engaged with the annular groove 68 of the rotating tube 74.
The Buddha, on the other hand, is held in a stationary state, allowing it to rotate freely.

Even if there are 43 people in this example, the same effect as in the previous example is achieved by 1! '7.

In both of the above embodiments, the groove structure in which the hose 61 is detachably attached to the cleaner body 1 has been described, but the hose C and the cleaning tube may be provided integrally with the cleaner body.

[Effect of investigation]

According to the present invention, a connecting port is provided on the inclined surface formed on the vacuum cleaner body, a bent portion is provided in the connecting pipe portion of the hose connected to the connecting port, and the hose is connected to the vacuum cleaner main body. By making the hose freely rotatable in the circumferential direction with the rotation axis in a direction substantially perpendicular to the inclined surface, as the hose is rotated, the connection pipe with the bent portion Since the part changes direction not only horizontally but also vertically with respect to the main body of the vacuum cleaner, for example, while grasping the hand grip provided on the other side of the hose, connect to this hand grip via an extension tube etc. When moving the suction port body along the surface to be cleaned, the degree of freedom in positioning the suction port body relative to the vacuum cleaner body increases, making cleaning over a wide range of horizontal and vertical directions such as floors and ceilings easier and more efficient. Also, as mentioned above, the hose rotates 1' with the rotation axis in the direction approximately perpendicular to the inclined surface, so it is easy to grasp the hand grip part of the hose and pull it. When the main body is moved, its tracking ability improves, and if the bending angle of the hose bends is increased to a certain extent, the air path resistance there decreases, reducing the drop in suction performance. can.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway side view showing one embodiment of the vacuum cleaner of the present invention, Fig. 2 is a perspective view of the same as the above, and Fig. 3 is a partially cutaway view showing another embodiment of the present invention. The cutaway side view, FIG. 4, is an explanatory view of the operation of the vacuum cleaner of the present invention. 1. Clean the main body, 7. Electric blower, 8. Dust collection chamber,
16...Slanted surface, 32.71...Connection port, 61...Hose, 63.72...Connection pipe part, 64.75...Bending part.

Claims (2)

[Claims] (1) A vacuum cleaner body that has a built-in electric blower and a dust collection chamber that communicates with the electric blower, and a connection port that communicates this dust collection chamber with the outside, and a connection port for this vacuum cleaner body. a hose forming a connecting pipe portion connected to the vacuum cleaner body, forming an inclined surface descending toward the front on the outer surface of the vacuum cleaner main body, and the connecting port portion being provided on this inclined surface;
A bent portion is provided in the connecting pipe portion of the hose on the side of the vacuum cleaner body, and the hose is rotatable in the circumferential direction with respect to the vacuum cleaner body with a rotation axis in a direction substantially perpendicular to the inclined surface of the hose. A vacuum cleaner featuring: (2) The angle of inclination of the inclined surface of the vacuum cleaner body with respect to the horizontal plane is within the range of approximately 35° to 75°, and the bending angle of the bent portion of the hose is within the range of approximately 115° to 155°. A vacuum cleaner according to claim 1, characterized in that: