JP2005318977A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner having a body connecting part of a hose unit or a cleaner body, when the cleaner body touches an obstacle in traveling, prevented from being easily caught by the obstacle compared with the conventional one and easily avoiding the obstacle by a slight operation and operating force. <P>SOLUTION: This vacuum cleaner is provided with the cleaner body 1 having a dust collecting chamber and an electric blower in its inside, the hose unit 20 having a body connecting part 22 detachably attached to a connecting opening of the cleaner body 1 in one end of the hose 21 and an operating part 23 in the other end, an extension wand 24 detachably connected to the operating part 23 of the hose unit 20, and a suction device 25 detachably connected to the extension wand 24. The body connecting part 22 or the cleaner body 1 is provided with a guide part 40 having slide contact parts 41a and 41b capable of avoiding the obstacle touched when the cleaner body 1 is traveling. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner, and more particularly, a vacuum cleaner including a hose unit main body connection portion or a vacuum cleaner main body provided with a guide portion that can avoid an obstacle that is in contact with the main body of the vacuum cleaner during travel. Related to the machine.

  In a conventional vacuum cleaner, a main body of a vacuum cleaner incorporating a dust collection chamber and an electric blower, a hose unit detachably connected to the main body from the front, an extension pipe connected to the hose unit, A main body connecting portion of the hose unit includes a tubular tube, a hose wrapped around the tube from the front, and an integral hose cover covering the wrapped portion. And a handle integrally formed above the hose cover (see, for example, Patent Document 1).

Japanese Patent No. 3006600 (page 2-3, FIG. 2, FIG. 5)

In conventional vacuum cleaners, the hose unit body connection is formed in a tubular shape (cylindrical shape), and this body connection is connected to the cleaner body at right angles to the front surface. There is a step (L-shaped corner) between both sides of the outer periphery of the part and the front surface of the cleaner body.
For this reason, when the main body of the vacuum cleaner travels during cleaning, for example, if an obstacle such as furniture or a wall at the entrance of the room hits this stepped portion, the main body of the vacuum cleaner stops and cannot be traveled. Therefore, the workability of cleaning is significantly reduced.

  The present invention has been made to solve the above problems, and when the main body of the cleaner comes into contact with an obstacle while traveling, it is less likely to be caught by the obstacle than in the past, and can be easily performed with slight operation and operation force. An object of the present invention is to provide a vacuum cleaner including a hose unit main body connection portion or a vacuum cleaner main body capable of avoiding an obstacle.

  The vacuum cleaner according to the present invention has a guide that can avoid this when the hose unit is connected to the connection port of the vacuum cleaner main body or the main body connection portion of the hose unit or the main body of the vacuum cleaner is in contact with an obstacle during the running of the vacuum cleaner main body. A part is provided.

  In the present invention, since the guide part is provided in the hose unit main body connection part or the vacuum cleaner main body, even if it touches an obstacle while the cleaner main body is running, it is difficult to catch, and it can be easily obstructed with a slight operation and operation force. Since an object can be avoided, the workability of cleaning can be improved and a user-friendly vacuum cleaner can be obtained.

[Embodiment 1]
1 is a perspective view showing the overall configuration of the electric vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a plan view of a main body connecting portion of the vacuum cleaner main body and the hose unit of FIG. 1, and FIG. 3 is a side view of FIG. FIG.
A connection port 2 to which the hose unit 20 is connected is provided on the front side of the electric vacuum cleaner main body 1 (hereinafter referred to as the vacuum cleaner main body). ) Is the front and the right side is the rear) is provided with a dust collection chamber 3 for separating the sucked air and dust and collecting the dust. Further, a backup filter 4 for collecting dust that could not be collected in the dust collection chamber 3 is provided behind the dust collection chamber 3, and an electric blower 5 is installed behind the filter. Reference numeral 6 denotes an exhaust port provided in the rear wall of the cleaner body 1. And the front wheel 7 is attached to the bottom face of the cleaner body 1 so as to be rotatable with respect to the traveling direction, and rear wheels 8 are provided on both side faces. Reference numeral 9 denotes a sealing buffer provided on both side surfaces, which is made of, for example, a rubber-based material. The surface is coated with a fluorine-based coating having a low resistance and is subjected to a highly slidable surface treatment.

  A hose unit 20 has a hose 21 provided with a main body connection portion 22 connected to the connection port 2 of the cleaner main body 1 at one end and an operation portion 23 provided at the other end. An extension tube 24 is detachably connected to the operation portion 23, and a suction tool 25 is detachably connected to a distal end portion of the extension tube 24.

4 is a plan view of a main body connecting portion of the hose unit partially shown in cross section, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a right side view of FIG.
The main body connection portion 22 is provided on the rear side and is inserted into the connection port 2 of the cleaner body 1, and the main body insertion portion 26 that opens into the dust collecting chamber 3 and the hose 21 is connected to the front portion side. A hose connection portion 27 having a larger diameter than the main body connection portion 26 is integrally formed, and a stopper abutting portion 28 is formed between the main body insertion portion 26 and the hose connection portion 27.

  Guide grooves 29a and 29b are provided at symmetrical positions of the main body insertion portion 26, and between the front end portion of the hose connection portion 27 and substantially the center in the longitudinal direction, guide grooves 29a and 29b are provided. On the same line, guide ribs 30a and 30b having a substantially triangular side surface projecting from the front side are gradually lowered and become the rear side. 31a, 31b (31a not shown) is a wing pedestal provided on the rear side of the guide ribs 30a, 30b and orthogonal thereto, and a notch groove 32 is provided on an extension line of the guide ribs 30a, 30b. ing.

Reference numerals 41a and 41b denote wings that constitute sliding contact portions of the guide portion 40 provided at symmetrical positions on the outer periphery of the main body connection portion 22, and are formed in a substantially rectangular plane and in a substantially U-shaped cross section, and a distal end portion (rear side) Is formed in a shape corresponding to the shape of the front surface side of the cleaner body 1, the surface is subjected to surface treatment with high slidability, and a soft material 42 is attached to the tip.
Reference numeral 43 denotes a fixed rib projecting inwardly at the center in the width direction of the wings 41a and 41b. One end (front side) is inserted into the notch groove 32 of the wing pedestals 31a and 31b and can be rotated by a pin 44. It is supported.

  45a and 45b are arms, and one end (front side) is rotatably supported by a pin 46 on a fixing rib 43 of the wings 41a and 41b, and the other end is slidably disposed in the guide grooves 29a and 29b. The stopper elements 47a and 47b are connected to each other by a pin 48 so as to be rotatable. Numerals 49a and 49b (49b not shown) are urging means made of an elastic body such as a leaf spring split between the fixing rib 43 and the arms 45a and 45b. The wings 41a and 41b and the arms 45a and 45b are formed as main bodies. The connection portion 22 is always biased toward the center portion side.

  Reference numerals 50a and 50b denote wiring guides protruding vertically from the front end portion of the hose connection portion 27 to the substantially central portion in the longitudinal direction of the main body insertion portion 26, from the vicinity of the front end portion of the upper wiring guide 50a to the rear side. A locking piece 53 is formed by a slit 52, a locking claw 54 whose rear side is inclined downward is projected from the tip (rear side), and a lock button 55 is provided on the base 51 side. When the lock button 55 is squeezed down, the locking piece 53 moves downward with the base 51 as a fulcrum, and the lock claw 54 is displaced downward. The lower wiring guide 50b may be omitted. 56 is a pair of connection pins that are provided at the front end (rear side) of the wiring guide portion 50a and connect the operation portion 23 of the hose unit 20 to a power supply portion (not shown) provided in the cleaner body 1. The hose 21 is connected to wiring (not shown) provided in the operation unit 23.

Next, the operation of the guide portion 40 provided in the main body connection portion 22 according to the present embodiment will be described with reference to FIGS. In the drawing, the hose 21 connected to the main body connecting portion 22 is omitted.
In the initial state, the wings 41a and 41b and the arms 45a and 45b of the main body connecting portion 22 are urged by the urging means 49a and 49b and held substantially parallel to the main body connecting portion 22 as shown in FIG. Yes.

First, holding the main body connection portion 22 and inserting the main body insertion portion 26 into the connection port 2 of the cleaner body 1 as shown in FIG. 7, stopper elements 47 a and 47 b are provided on the outer periphery on the front side of the connection port 2. Abuts against the stopper receiving portion 11.
When the main body connecting portion 22 is further pushed in, the stopper elements 47a and 47b cannot be advanced any further and are held in that position. Therefore, the main body connecting portion 22 is provided in the main body inserting portion 26 as shown in FIG. It advances along the stopper elements 47a and 47b by the guide grooves 29a and 29b. Therefore, the arms 45a and 45b connected to the stopper elements 47a and 47b rise around the pin 48 against the urging means 49a and 49b, and are connected to the arms 45a and 45b by the pin 46. The wings 41a and 41b also turn around the pin 44, rise, and expand in the left-right direction.

  When the main body connecting portion 22 is further pushed in, the stopper elements 47a and 47b come into contact with the stopper abutting portion 28 formed between the main body inserting portion 26 and the hose connecting portion 27 as shown in FIG. At this time, the distal end portion of the main body insertion portion 26 is located in the dust collection chamber 3, and the soft material 42 provided at the distal end portions of the wings 41a and 41b comes into contact with (or close to) the front surface portion 10 of the cleaner body 1. Positioned), and the side surfaces (surface) of the wings 41a and 41b are smoothly continuous from the front surface to the side surface (sealing buffer 9) of the cleaner body 1. At this time, the opening angle θ of the wings 41a and 41b is set to be 90 ° or less (the same applies to the following embodiments).

  Further, the locking claw 54 is squeezed down and displaced downward by the edge provided on the outer periphery of the connection port 2 by the advancement of the main body connection portion 22, and the locking portion provided at the edge of the connection port 2 as shown in FIG. 10. The position of 12 is reached and the original state is restored, and the locking claw 54 is locked to the locking portion 12. Thereby, the main body connection portion 22 is locked at that position and does not come out of the connection port 2.

When detaching the hose 21 and therefore the main body connection portion 22 from the cleaner body 1, the lock button 55 is pressed down, the lock claw 54 is removed from the locking portion 12, and the lock is released. Can be easily pulled out.
When the main body connecting portion 22 is pulled out from the connection port 2, the stopper elements 47a and 47b are moved through the arms 45a and 45b in the guide grooves 29a and 29b toward the front end portion (rear side) by the biasing force of the biasing means 49a and 49b. As a result, the arms 45a and 45b and the wings 41a and 41b also rotate toward the center of the main body connecting portion 22 and return to the state shown in FIG.

Next, the operation of the electric vacuum cleaner according to the present embodiment will be described.
First, the main body connection portion 22 of the hose unit 20 is held, and the main body insertion portion 26 is inserted into the connection port 2 of the cleaner body 1 to be connected. At this time, the main body insertion portion 26 opens into the dust collection chamber 3 (or the dust collector provided in the dust collection chamber 3) of the vacuum cleaner main body 1, and the lock claw 54 provided in the main body connection portion 22 is shown in FIG. As shown in FIG. 4, the engaging portion 12 is engaged with the engaging portion 12 provided at the edge of the connection port 2. Further, as shown in FIG. 9, the soft material 42 provided at the rear ends of the wings 41a and 41b is located in contact with or close to the front surface 10 of the cleaner body 1, and the surfaces of the wings 41a and 41b are cleaned. Smoothly continues to the front face 10 or the side wall (including the sealing buffer 9) of the machine body 1. Next, a cord (not shown) provided in the cleaner body 1 is connected to a power source.

  When the power switch provided on the operation unit 23 is turned on, the electric blower 5 is driven, and dust such as floor is sucked together with the air from the suction tool 25 by the suction airflow generated thereby, and the extension pipe 24 and the hose unit 20 are connected. Then, it is sent into the cleaner body 1. The dust sent to the cleaner body 1 is separated into air and dust in the dust collection chamber 3, and the dust is collected in the dust collection chamber 3. The air separated from the dust is further filtered by the backup filter 4 to become clean air, and is discharged from the exhaust port 6 through the electric blower 5.

The cleaning operation is performed by the operator holding the operation unit 23 in his / her hand, but as the operator moves while holding the operation unit 23, the cleaner main body 1 is also pulled (moved) by being pulled by the hose 21.
When the cleaner body 1 moves, if there is an obstacle such as a chair leg in front of the traveling direction, as shown in FIG. 9, the obstacle 100 is connected to the wing 41 a (or 41 b − of the main body connecting portion 22). Therefore, the front surface of the cleaner body 1 is not caught on the obstacle 100.

  That is, when the obstacle 100 comes into contact with the wing 41, the side surface of the wing 41 moves along the obstacle 100 by continuously moving the cleaner body 1. Therefore, a rotational force acts on the cleaner body 1, and the front wheel 7 Changes the orientation of the vacuum cleaner body 1 and the running direction changes. In this case, since the opening angle θ of the wing 41 is 90 ° or less, the efficiency of changing the pulling force of the hose 21 to the turning force is increased, and the turning is performed with a light operating force. In addition, since the surface of the sealing buffer 9 provided on the side surface of the wing 41 is subjected to a highly slidable surface treatment, a large frictional resistance does not occur when contacting the obstacle 100.

  Thus, the cleaner body 1 changes its posture while the obstacle 100 is in contact with the wing 41 and moves while avoiding the obstacle 100. When the obstacle 100 comes off the wing 41, the obstacle 100 comes into contact with the side surface of the cleaner body 1. However, the side surface of the wing 41 and the side surface of the cleaner body 1 (sealing buffer 9) have a smoothly continuous shape. The obstacle 100 is not caught at this side change. In addition, when the sealing buffer 9 is not provided, it is desirable to perform a highly slidable surface treatment on at least the front side of both sides of the cleaner body 1 (the same applies to the following embodiments). .

  As described above, in the conventional vacuum cleaner described in Patent Document 1, when the obstacle 100 comes into contact with the front surface of the cleaner main body 1, it is difficult to turn, so the cleaner main body 1 is caught by the obstacle 100. Since the traveling stops, the cleaning workability is remarkably deteriorated. In the present embodiment, since the guide portion 40 is provided in the main body connection portion 22 of the hose unit 20 as described above, such a problem does not occur.

  As is clear from the above description, according to the present embodiment, the main body connection portion 22 of the hose unit 20 is provided with the guide portion 40, so that the cleaner body 1 is caught by the front obstacle 100 during traveling. You can drive without stopping. Further, by setting the opening angle θ of the guide portion 40 to 90 ° or less, the turning force of the cleaner body 1 can be increased, the obstacle 100 can be avoided with a light operating force, and the side surface of the cleaner body 1 is further improved. Since the sealing buffer 9 provided on the surface is subjected to a highly slidable surface treatment, it can be operated with a light operating force. Moreover, since the side surface of the wing 41 and the side surface of the vacuum cleaner main body 1 are connected smoothly, the obstruction 100 is not caught at the change of the surface, and the workability of cleaning compared with the conventional electric vacuum cleaner. Can be greatly improved.

Further, when the main body connection portion 22 is inserted into the connection port 2 of the cleaner body 1, the wings 41a and 41b are automatically opened and locked, and when unlocked and pulled out from the connection port 2, the wings 41a and 41b are Since it contracts automatically and is held substantially parallel to the main body connecting portion 22, it is possible to obtain a vacuum cleaner that is very easy to operate and easy to use.
Further, when not in use, the wings 41a and 41b contract as described above to form a small space, which is convenient for movement, storage, and packing.

[Embodiment 2]
11 is a plan view of a vacuum cleaner main body and a main body connecting portion of a hose unit of a vacuum cleaner according to Embodiment 2 of the present invention, FIG. 12 is a side view thereof, and FIG. 13 is a plan sectional view of the main part of FIG. is there. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
In Embodiment 1, although the case where the guide part 40 was directly provided in the main body connection part 22 of the hose unit 20 was shown, this Embodiment formed the guide part 60 separately from the main body connection part 22. It is.

  11 to 13, reference numeral 60 denotes a guide portion that is detachably attached to the main body connection portion 22 of the hose unit 20. As shown in FIG. 14A, the guide portion 60 is made of, for example, a hard resin material. A cylindrical connection pipe 61 having an inner diameter substantially equal to the outer diameter of the hose connection portion 27 and an approximately equal length is provided. The lower portion of the connection pipe 61 is cut into a slit shape in the longitudinal direction, and a plurality of pipes are provided on both sides thereof. Fixing pieces 62a and 62b having screw insertion holes 63 hang down facing each other.

Further, in the longitudinal direction of the upper part, a guide protrusion 64 is provided projecting from the front and rear with a substantially U-shaped cross-section, into which the wiring guide 50a of the main body connecting portion 22 is inserted, and the wiring guide 50a is provided on the upper surface. An opening 65 is provided through which the lock claw 54 and the lock button 55 of the provided locking piece 53 are exposed.
Reference numerals 66a and 66b are guide portions that project at symmetrical positions on both sides of the connecting pipe 61 to constitute a sliding contact portion, and the front end portion (rear portion side) is opened in a substantially square shape so that the front portion of the cleaner main body 1 is opened. It is formed in a shape corresponding to the shape and wide in plane, converged on the connection tube 61 side toward the front side, and formed in a substantially triangular shape on the plane, and the side surface is formed in a concave arc shape and has high slidability. Surface treatment is applied.

  As shown in FIG. 13, the guide portion 60 configured as described above has the guide portions 66 a and 66 b horizontal from the main body insertion portion 26 side of the main body connection portion 22, and the wiring guide 50 a is inserted into the guide protrusion 64. Then, the connecting pipe 61 is pushed in and positioned, and screws are inserted into the screw insertion holes 63 of the fixing pieces 62a and 62b provided in the lower part and fixed with nuts. Thereby, the guide part 60 is integrally attached to the main body connection part 22 of the hose unit 20. At this time, the lock claw 54 and the lock button 55 of the locking piece 53 provided in the main body connection portion 22 are exposed from the opening 65 of the guide protrusion 64.

As shown in FIG. 13, the main body connecting portion 22 of the hose unit 20 to which the guide portion 60 is attached as described above is inserted into the connecting port 2 of the cleaner main body 1, and the locking piece 53 lock claws 54 are engaged with and engaged with an engaging portion 12 (see FIG. 10) provided near the connection port 2.
At this time, the leading end portions (rear side) of the guide portions 66a and 66b are located in contact with or close to the front surface portion 10 of the cleaner body 1, and the side walls are side surfaces (or sealing buffers) from the front surface portion 10 of the cleaner body 1. Smoothly continuous over 9).

  FIG. 14B shows another example of the guide part 60. Instead of the guide parts 66a and 66b of FIG. 14A, the two sides of the connecting pipe 61 are opposed to each other horizontally and are substantially triangular. One or a plurality of guide ribs 67a and 67b (four cases are shown in the figure) are provided to form a sliding contact portion. In this example, the case where the front end portion (rear portion side) of the guide portion 60 is formed in a straight line and the side end portion is formed in a convex arc shape is shown. The side end portions of the guide ribs 67a and 67b may be subjected to surface treatment with high slidability, and a soft material may be attached to the tip end portion (rear portion side).

In each of the above-described examples, the guide portion 60 is cut into a slit shape in the longitudinal direction at the lower portion of the connecting pipe 61, and fixed pieces 62a and 62b are provided on both sides thereof, and fitted into the main body connecting portion 22 to be fixed pieces 62a and 62b. However, for example, the connecting pipe 61 is formed in a cylindrical shape, and either one of the main body connecting portion 22 and the connecting pipe 61 is provided with a locking portion, and the other is connected to the locking portion. Other means may be used, such as providing a locking claw for locking, inserting the guide portion 60 into the main body connecting portion 22, and locking the locking claw to the locking portion and fixing.
According to the present embodiment, substantially the same operations and effects as those of the first embodiment can be obtained, but the structure of the main body connection portion 22 and the guide portion 60 of the hose unit 20 can be further simplified.

[Embodiment 3]
15 is a plan view of a vacuum cleaner main body and a main body connecting portion of a hose unit of a vacuum cleaner according to Embodiment 3 of the present invention, FIG. 16 is a side view of FIG. 15, and FIG. FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the first and second embodiments, the case where the guide portions 40 and 60 are provided in the main body connection portion 22 of the hose unit 20 has been described. However, in the present embodiment, the guide portion is provided in the cleaner body 1. is there.

  15 to 17, reference numeral 13 denotes an upper cover of the cleaner body 1, reference numeral 14 denotes a handle, reference numeral 15 denotes a connection port 16 to which the main body connection part 22 of the hose unit 20 is connected, and a guide part 70 is provided on the front side. And an inlet (hereinafter referred to as a front plate) screwed to the front side of the cleaner body 1.

  The guide portion 70 is formed integrally with the front plate 15, and as shown in FIG. 18, a connection pipe 71 that communicates with the connection port 16 is provided on the front side of the front plate 15. The connecting pipe 71 has an inner diameter substantially equal to the outer diameter of the main body connecting portion 22 of the hose unit 20, and an opening 72 into which the wiring guide 50 a of the main body connecting portion 22 is inserted is provided at the upper portion.

  73a and 73b are guide ribs that form one or a plurality of (in the figure, three are shown) slidable contact portions that are opposed and horizontally provided on both sides of the connecting pipe 71. The guide ribs 73a and 73b are substantially triangular in plan, and two sides are formed integrally with the front plate 15 and the connecting pipe 71, and the side surfaces are formed in a convex arc shape. Note that a highly slidable surface treatment may be applied to this side surface.

  As shown in FIG. 17, the front plate 15 having the guide portion 70 configured as described above is disposed on the front surface of the cleaner body 1 and fixed with screws. Thereby, the guide part 70 is protruded and arrange | positioned at the front surface of the cleaner main body 1, the guide ribs 73a and 73b are hold | maintained horizontally, and the front-end | tip part (rear part side) is the side surface (or sealing buffer 9) of the cleaner main body 1. ) And continue smoothly.

Then, the main body connection portion 22 of the hose unit 20 is inserted from the connection pipe 71 of the guide portion 70 into the connection port 16 of the front plate 15. At the same time, the wiring guide 50a is inserted into the opening 72 of the connecting pipe 71, the lock claw 54 of the locking piece 53 is locked to a locking portion (not shown) provided on the front plate 15, and the main body connecting portion 22 is locked. Is done.
When removing the hose unit 20 from the cleaner body 1, the lock button 55 of the locking piece 53 is squeezed down to release the lock claw 54 from the locking portion, the lock is released, and the main body connection portion 22 is pulled forward. .
The operation and effects of the present embodiment are almost the same as those of the first embodiment.

[Embodiment 4]
FIG. 19 is a front view of a vacuum cleaner main body of an electric vacuum cleaner according to Embodiment 4 of the present invention, and FIG. 20 is a plan sectional view of the main part of FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
As in the case of the third embodiment, the present embodiment is such that the cleaner body 1 is provided with the guide portion 80, but the guide portion 80 is formed separately from the front plate 15.

  The front plate 15 is provided with a connection port 16 into which the main body connection portion 22 of the hose unit 20 is inserted, and a plurality of locking pieces 17 are provided on the outer peripheral front side of the connection port 16. A plurality of locking contact pieces 18 are provided on the front side of the cleaner body 1.

The guide portion 80 has an inner diameter substantially equal to the outer diameter of the main body connection portion 22 and has a connection pipe 81 communicating with the connection port 16 of the front plate 15 at the time of assembly. A plurality of engaging pieces 82 having locking holes 83 are provided corresponding to the 15 locking pieces 17.
Further, on both sides of the front end portion (front side) of the connecting pipe 81, a flat, substantially triangular sliding contact formed in an arc shape with a wide upper and lower side and a convex side wall extending to the rear of the connecting pipe 81. 85a and 85b are provided, and a locking groove 86 for locking to the locking contact piece 18 provided in the cleaner body 1 is provided at the front end portion (rear side) of the sliding contact portions 85a and 85b. Yes. Note that a highly slidable outer surface treatment may be applied to the side surfaces of the sliding contact portions 85a and 85b.

The guide portion 80 configured as described above is integrated with the front plate 15 by locking the locking holes 83 of the engaging pieces 82 provided on the guide portions 80 to the locking pieces 17 of the front plate 15. At this time, the connection pipe 81 is located on the same line as the connection port 16 of the front plate 15.
Then, the front plate 15 is attached to the front surface of the cleaner body 1 by screwing. At this time, the locking groove 86 provided in the sliding contact portions 85a and 85b is fitted and locked to the locking contact piece 18 provided in the cleaner body 1, and its side surface is the side surface (or sealing) of the cleaner body 1. Smoothly continues to the buffer 9).

When connecting the hose unit 20 to the cleaner body, the main body connection portion 22 is inserted into the connection port 16 of the front plate 15 from the connection pipe 81 of the guide portion 80 and connected. At this time, the wiring guide 50a is inserted into the opening 84 of the connecting pipe 81, the lock claw 54 is locked by being locked to a locking portion (not shown) provided on the front plate 15, and the lock button 55 is opened. The portion 84 is exposed.
When removing the hose unit 20 from the cleaner body 1, the lock button 55 may be pressed down to remove the lock claw 54 from the engaging portion, the lock may be released, and the main body connection portion 22 may be pulled forward.
The operation and effects of the present embodiment are almost the same as those of the first embodiment.

In the above description, the case where the present invention is implemented in the illustrated vacuum cleaner is shown. However, the present invention may be implemented in other types of vacuum cleaners as long as the vacuum cleaner body and the hose unit are included. Can do.
Moreover, although the case where the sliding part of various shapes and structures was provided in the guide part was shown, it is not limited to this, and other shapes and structures can be used as long as the effects and effects of the present invention can be obtained. The sliding contact portion may be used.
Furthermore, the shape of the front end portion (side of the cleaner main body) and the shape of both side surfaces of the sliding contact portion can be appropriately changed according to the shapes of the front surface portion and the side surface (or sealing buffer) of the cleaner main body using this. it can.

It is a perspective view which shows the whole structure of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a top view of the main-body connection part of the cleaner main body and hose unit of FIG. FIG. 3 is a side view of FIG. 2. It is the top view which showed a part of main body connection part of FIG. 2 in the cross section. FIG. 5 is a side view of FIG. 4. FIG. 5 is a front view of FIG. 4. FIG. 3 is an operation explanatory diagram of the first embodiment. FIG. 3 is an operation explanatory diagram of the first embodiment. FIG. 3 is an operation explanatory diagram of the first embodiment. FIG. 3 is an operation explanatory diagram of the first embodiment. It is a top view of the main-body connection part of the hose unit of the vacuum cleaner and the cleaner main body which concern on Embodiment 2 of this invention. It is a side view of FIG. FIG. 2 is a plan sectional view of a main part of FIG. 1. It is a perspective view of the guide part of FIG. 11, and the guide part of another example. It is a top view of the main-body connection part of the hose unit of the vacuum cleaner and the cleaner main body which concern on Embodiment 3 of this invention. . FIG. 16 is a side view of FIG. 15. FIG. 16 is a cross-sectional plan view of a main part of FIG. 15. FIG. 16 is a perspective view of the front plate and guide portion of FIG. 15. It is a front view of the vacuum cleaner main body of the vacuum cleaner which concerns on Embodiment 4 of this invention. FIG. 20 is a plan cross-sectional view of the main part of FIG. 19.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body, 2 Connection port, 9 Sealing buffer, 11 Stopper receiving part, 15 Front plate, 16 Connection port, 20 Hose unit, 21 Hose, 22 Main body connection part, 28 Stopper contact part, 29a, 29b Guide groove, 40 Guide part, 41a, 41b Wing forming sliding contact part, 45a, 45b Arm, 47a, 47b Stopper element, 50a, 50b Wiring guide, 53 Locking piece, 54 Lock claw, 55 Lock button, 60 Guide part, 61 Connection pipe, 66a, 66b Guide part forming sliding contact part, 70 guide part, 71 connection pipe, 73a, 73b Guide rib forming slide contact part, 80 guide part, 81 connection pipe, 85a, 85b Slide contact part.

Claims (12)

A vacuum cleaner body having a dust collection chamber and an electric blower inside, a hose unit having a main body connection portion detachably attached to a connection port of the vacuum cleaner body at one end of the hose, and an operation portion provided at the other end And an extension pipe detachably connected to the operation part of the hose unit and a suction tool detachably connected to the extension pipe,
The vacuum cleaner characterized by providing the guide part provided with the sliding contact part which can avoid the obstruction which contacted the said main-body connection part during driving | running | working of the said vacuum cleaner main body.   The guide portions are provided on both sides of the main body connecting portion and are normally held substantially parallel to the main body connecting portion, and when the main body connecting portion is connected to the connection port of the cleaner main body, the leading end portion is expanded. 2. The electric vacuum cleaner according to claim 1, wherein the electric vacuum cleaner is constituted by a sliding contact portion that is in contact with or close to a front surface of the vacuum cleaner body. The main body connection portion is integrally formed with a main body insertion portion and a hose connection portion having a diameter larger than that of the main body insertion portion, and a stopper abutting portion is provided therebetween, and tip portions on both sides of the peripheral wall of the main body insertion portion A guide groove reaching the stopper contact portion from
On the extension line of the guide groove, the base is pivotally connected to the hose connection part, and the vicinity of the tip is connected to the sliding contact part pivotally connected to one end of the arm and the other end of the arm. A guide portion having a stopper element slidably disposed in the guide groove, and provided with an urging means for urging both of the slidable contact portion and the arm toward the body connecting portion side. The electric vacuum cleaner according to claim 2, wherein   4. The electric vacuum cleaner according to claim 3, wherein a stopper receiving portion is provided on an outer periphery of the connection port of the vacuum cleaner main body so that the stopper element abuts when the main body connection portion is inserted into the connection port.   A connecting pipe having an inner diameter that can be fitted into the main body connecting portion; and a guide portion formed by providing a wide and substantially triangular sliding contact portion on the vacuum cleaner main body side on both sides of the connecting pipe. The vacuum cleaner according to claim 1, wherein the main body connection portion is detachably mounted. A vacuum cleaner body having a dust collection chamber and an electric blower inside, a hose unit having a main body connection portion detachably attached to a connection port of the vacuum cleaner body at one end of the hose, and an operation portion provided at the other end And an extension pipe detachably connected to the operation part of the hose unit and a suction tool detachably connected to the extension pipe,
The vacuum cleaner characterized by providing the guide part provided with the sliding contact part which can avoid the obstruction which contacted during the driving | running | working of this cleaner body in the said cleaner body.   A connecting pipe that communicates with the connecting port of the front plate with an inner diameter that the main body connecting portion can be inserted protrudes from the front side of the front plate of the vacuum cleaner body, and the connecting pipe and the front are provided on both sides of the connecting pipe. The vacuum cleaner main body side is provided with a guide portion having a wide and substantially planar sliding contact portion between the front plate and the face plate, and the front plate is attached to the front surface of the cleaner main body. The vacuum cleaner described.   The main body connection portion has a connecting pipe with an inner diameter that can be inserted, and the vacuum cleaner main body side is provided with a guide portion formed on both sides of the connecting pipe with a wide, generally triangular sliding contact portion. The electric vacuum cleaner according to claim 6, wherein the electric vacuum cleaner is detachably attached to a front plate of the main body of the vacuum cleaner.   The vacuum cleaner main body side and the side surface of the sliding contact portion provided in the guide portion are formed in a shape corresponding to the shape of the front surface and the side surface of the vacuum cleaner main body. Electric vacuum cleaner.   The vacuum cleaner according to any one of claims 1 to 9, wherein an opening angle of the sliding contact portion of the guide portion is within 90 °.   The vacuum cleaner according to any one of claims 1 to 10, wherein the side surface of the sliding contact portion of the guide portion and the side surface of the vacuum cleaner main body are coated with a highly slidable material. . The vacuum cleaner according to any one of claims 1 to 11, wherein a side surface of the guide sliding contact portion on the side of the cleaner body is formed so as to be smoothly connected to a side surface of the cleaner body.

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