JPH08196493A - Vacuum cleaner - Google Patents

Abstract

PURPOSE: To prevent damage to a vacuum cleaner hose, by constructing an extended part from the overlap width of a hose member of a first cover with a first connection member toward the hose member side and making the length of the extended part in the axis direction larger than the diameter of the hose member. CONSTITUTION: A cover 16 is to be engaged with an engaging rib formed on the outer periphery face of a hose attaching tube 9. The cover 16 made of resin comprises a cover part 17 to cover the overlap width of the hose attaching tube 9 with a hose member 5 and an extended part 19 connected to the cover part 17 and to cover a neighboring part 18 connected to the overlap width of the hose attaching tube 9 of the hose member 5 and the hose member 5. The length of the extended part 19 is set to 40mm or longer, that is, a length equal to or more than the diameter of the hose member 5, so as to prevent the neighboring part 18 of the hose member from bending at the end part of the hose attaching tube 9 as the fulcrum.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner,
Especially it relates to the improvement of the hose.

[0002]

2. Description of the Related Art Conventionally, a hose 50 of an electric vacuum cleaner has connecting members 52 and 53 connected to both ends of a flexible bellows-shaped hose 51, respectively, and connected to a cleaner main body 54 via the main body side connecting member 52. Although it is designed to be connected, when the vacuum cleaner main body 54 is caught on a step such as a sill in the usage state of the vacuum cleaner shown in FIG. 10, if the hose 50 is pulled to pull the main body,
Connection part 5 between hose 51 and connection member 53 on the hand side of 51
5, and the hose 51 and the connecting member 52 on the cleaner body 54 side
A burden is placed on the overlapping portion 56 with the hose, and there is a risk that the hose will be damaged if such an operation is repeated.

Further, when the user lifts the hose at hand, the hose goes down, so that the vicinity of the overlapping portion of the hose 51 and the connecting member 53 on the hand side of the hose is bent at a sharp angle, and the suction during cleaning is performed. When the suction tool is pulled toward the user in the forward / backward movement of the tool, the vicinity of the overlapping portion on the proximal side of the hose 51 is bent at a steeper angle.
And as shown in FIG. 8, the overlap allowance between the hose 51 and the connecting member 53.
Since the size of the cover 56 covering 55 is substantially equal to the overlap margin 55 of the hose 51 and the connecting member 53, the hose 51 bends sharply with the end of the connecting member 53 as a fulcrum, and the vicinity of the overlapping portion on the proximal side of the hose There is a problem that it becomes tired and easily broken.

Further, in recent years, when storing an electric vacuum cleaner,
As shown in FIG. 9, a so-called stand storage is generally used in which the cleaner main body is held in an upright state and is locked to the cleaner main body while the hose, extension pipe, etc. are connected.
There is a problem that the vicinity of the overlapping portion on the hand side of the hose is held in a state of being bent at a steep angle, and this portion is easily damaged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide an electric vacuum cleaner capable of preventing a hose from being damaged.

[0006]

Means for Solving the Problems A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end,
A floor suction tool attached to the other end of the extension pipe, wherein the flexible hose includes a first connection member connected to the suction port and a second connection member connected to the extension pipe. A flexible hose member that connects the first and second connecting members, and a first cover that is attached to the first connecting member and covers the overlapping portion of the hose member and the first connecting member, According to a first aspect of the present invention, in which the second cover is attached to the second connecting member and covers the overlapping portion of the hose member and the second connecting member,
The cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the first connecting member, and the axial length of the extending portion is equal to or larger than the diameter of the hose member. And

According to a second aspect of the present invention, the second cover is provided with an extension portion toward the hose member side due to an overlapping margin of the hose member and the second connection member, and the extension portion has an axial direction. The length is equal to or larger than the diameter of the hose member.

A third means of the present invention is that the first cover is provided with an extending portion toward a hose member side from a superposition margin of the hose member and the first connecting member, and the first cover is extended. The flexibility on the part side is made larger than the flexibility on the first connecting member side.

According to a fourth aspect of the present invention, the second cover is provided with an extending portion toward the hose member side with respect to an overlapping margin of the hose member and the second connecting member, and the second cover is extended. The flexibility on the part side is made larger than the flexibility on the second connecting member side.

A fifth means of the present invention is that the first cover is provided with an extending portion toward a hose member side from a polymerization margin of the hose member and the first connecting member, and the first cover is extended. The flexibility on the part side is larger than the flexibility on the first connection member side and smaller than the flexibility on the hose member.

According to a sixth aspect of the present invention, the second cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the second connecting member, and the second cover is extended. The flexibility on the part side is larger than the flexibility on the second connection member side and smaller than the flexibility on the hose member.

A seventh means of the present invention is that the first cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the first connecting member, and the first cover is slidable. The property is gradually increased from the first connection member side toward the extended portion.

In an eighth aspect of the present invention, the second cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the second connecting member, and the second cover is slidable. The property is gradually increased from the second connection member side toward the extended portion.

In a ninth aspect of the present invention, the first cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the first connecting member, and the first cover is extended. The flexibility of the portion is made larger than the flexibility of the overlapping portion of the hose member and the connecting member.

A tenth means of the present invention is that the second cover is provided with an extending portion toward a hose member side from a polymerization margin of the hose member and the second connecting member, and the second cover is extended. The flexibility of the portion is made larger than the flexibility of the overlapping portion of the hose member and the connecting member.

According to an eleventh means of the present invention, the first cover is provided with an extending portion toward a hose member side from a polymerization margin of the hose member and the first connecting member, and the first cover is extended. A plurality of circumferential slits are formed in the portion.

A twelfth means of the present invention is that the second cover is provided with an extending portion toward a hose member side from a superposition margin of the hose member and the second connecting member, and the second cover is extended. A plurality of circumferential slits are formed in the portion.

According to a thirteenth means of the present invention, the first cover is formed of a spiral member, and the spiral member is extended toward the hose member side from a polymerization margin between the hose member and the first connecting member. It is characterized by being set up.

According to a fourteenth means of the present invention, the first cover is formed by a spiral member, and the spiral member is extended toward the hose member side from a polymerization margin between the hose member and the first connecting member. It is characterized by being set up.

A fifteenth means of the present invention is that the first cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the first connecting member, and the hose member of the first cover is provided. It is characterized in that the side is integrally formed of a low-flexibility material and the extended portion of the first cover is formed of a high-flexibility material.

According to a sixteenth means of the present invention, the second cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the second connecting member, and the hose member of the second cover is provided. It is characterized in that the side is integrally formed of a low flexible material and the extending portion of the second cover is integrally formed of a high flexible material.

[0022]

According to the first means of the present invention, when the main body of the vacuum cleaner is caught on a step such as a sill during cleaning, the hose is pulled in a direction other than the traveling direction of the main body 1 of the cleaner. However, the extending portion of the first cover is reinforced to protect the hose member, and the extending portion of the first cover has a dimension equal to or larger than the diameter of the hose member, so that the hose member has a large bending radius. Fatigue of the hose member is reduced, durability is improved, and the hose member is prevented from bending and closing the air flow path.

According to the second means of the present invention, when the main body of the cleaner is stored in the standing state (stored in the stand), the hose member tends to bend at a steep angle at the hand portion, but the extended portion of the second cover. And the hose member is protected and the dimension of the extended portion of the second cover is made equal to or larger than the diameter of the hose member, the bending radius of the hose member is increased and fatigue of the hose member is reduced to improve durability. And the hose member is prevented from bending and closing the air flow path.

According to the third means of the present invention, during cleaning,
When the main body of the hose is pulled by pulling the hose in a direction other than the advancing direction of the cleaner main body 1 while the main body of the vacuum cleaner is caught on a step such as a sill, the hose has a sharp angle in the overlapping portion on the cleaner main body side. Although it bends, the extended portion side of the first cover is bent to be a reinforcement, and the portion of the hose member that is continuous with the overlapping portion with the first connection member, that is, the bent portion is protected by the first cover.

According to the fourth means of the present invention, when the cleaner main body is stored in the standing state (stand storage), the hose member bends at a sharp angle at the hand portion and at the same time the extending portion side of the second cover is bent. It serves as a reinforcement, and the bent portion of the hose member is protected by the second cover.

According to the fifth means of the present invention, during cleaning,
When the main body of the hose is pulled by pulling the hose in a direction other than the advancing direction of the cleaner main body 1 while the main body of the vacuum cleaner is caught on a step such as a sill, the hose has a sharp angle in the overlapping portion on the cleaner main body side. However, the bending of the hose member is suppressed by the first cover, and the bending portion of the hose member is protected by the first cover.

According to the sixth means of the present invention, when the hose member bends at a steep angle at the hand portion when the cleaner body is stored in the standing state (stand storage), the second cover is extended accordingly. The part side is bent and becomes a reinforcement, the bending of the hose member is suppressed by the second cover, and the bending part of the hose member is protected by the second cover.

According to the seventh means of the present invention, during cleaning,
When the main body of the hose is pulled by pulling the hose in a direction other than the advancing direction of the cleaner main body 1 while the main body of the vacuum cleaner is caught on a step such as a sill, the hose has a sharp angle in the overlapping portion on the cleaner main body side. Although it bends, the first cover is elastically reinforced to prevent bending of the hose member by being protected by the first cover, and the flexibility of the first cover is
By gradually increasing from the first connecting member side toward the extending portion, the first cover gently bends, so that the free end of the first cover does not bend sharply as a fulcrum, and the hose member has a protective effect. improves.

According to the eighth means of the present invention, when the cleaner main body is stored in the standing state (stand storage), the hose member bends at a sharp angle from the cleaner main body toward the hand.
The cover is elastically reinforced to prevent bending of the hose member by being protected by the second cover, and the flexibility of the second cover is gradually increased from the second connection member side toward the extended portion. As a result, the second cover is gently bent, so that the free end of the second cover does not bend suddenly and the hose member is protected more effectively.

According to the ninth means of the present invention, during cleaning,
When the main body of the hose is pulled by pulling the hose in a direction other than the advancing direction of the cleaner main body 1 while the main body of the vacuum cleaner is caught on a step such as a sill, the hose has a sharp angle in the overlapping portion on the cleaner main body side. However, since the flexibility of the extension portion of the first cover is made larger than the flexibility of the overlapping portion of the hose member and the connection member, the extension portion of the first cover is deformed together with the hose member. It serves as a reinforcement, the bent portion of the hose member is protected by the first cover, and the strength of the portion of the first cover that covers the overlapping portion of the hose member and the connecting member does not decrease.

According to the tenth means of the present invention, the flexibility of the extending portion of the second cover is made larger than the flexibility of the overlapping portion of the hose member and the connecting member, so that the cleaner main body is When stored in a standing state (stored in a stand), the hose member bends at a steep angle at the hand portion, and at the same time, the extended portion of the second cover is slid to reinforce and the bent portion of the hose member is protected by the second cover. At the same time, the strength of the portion of the second cover that covers the overlapping portion of the hose member and the connecting member does not decrease.

According to the eleventh means of the present invention, at the time of cleaning, the cleaner body is caught on a step such as a sill,
When the hose is pulled by pulling the hose in a direction other than the traveling direction of the cleaner body 1 and the hose bends at a sharp angle at the cleaner body side overlapping portion of the hose, the extension portion side of the first cover is circumferentially oriented. The hose member is protected by bending along the slit formed in the.

According to the twelfth means of the present invention, when the hose member bends at a sharp angle at the hand portion when the cleaner body is stored in the upright state (stand storage), the extending portion of the second cover is circumferentially oriented. The hose member is protected by bending along the slit formed in the.

According to the thirteenth means of the present invention, when the cleaner body is caught on a step such as a sill when the cleaner is used,
When the main body is pulled by pulling the hose in a direction other than the traveling direction of the cleaner body 1, when the hose bends at a sharp angle in the cleaner body side overlapping portion of the hose, the spiral member as the first cover is slid. The hose member is protected.

According to the fourteenth means of the present invention, when the hose member bends at a sharp angle at the hand portion when the cleaner body is stored in the standing state (stand storage), the spiral member as the second cover is slid. The hose member is protected.

According to the fifteenth means of the present invention, during cleaning, the cleaner body is caught on a step such as a sill,
When the hose is pulled by pulling the hose in a direction other than the advancing direction of the cleaner main body 1 and the hose bends at a sharp angle at the cleaner main body side overlapping portion, the first cover is extended accordingly. Part of the hose is bent, and the bent part of the hose member is first
Protected by the cover.

According to the sixteenth means of the present invention, when the hose member bends at a steep angle at the hand portion when the cleaner main body is stored in the standing state (stand storage), the extending portion of the second cover is slid. The bent portion of the hose member is protected by the second cover.

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below in detail with reference to the drawings.

A vacuum cleaner body 1 has a suction port 2 formed in the front thereof, to which a flexible hose 5 described later is connected.

Reference numeral 3 denotes a flexible hose, one end of which is connected to the suction port 2 of the cleaner body 1 and the other end of which is connected to an extension pipe 21 which will be described later, and a steel wire such as a lead wire 4 is spirally wound. The hose member 5 has a spiral bellows shape, a main body side connecting member 6 connected to both ends of the hose member 5, and a hand side connecting member 7 (each will be described later). The hose member 5
Has a diameter of about 40 mm.

Reference numeral 6 denotes a main body side connecting member which is attached to one end of the hose member 5, that is, the suction port 2 side of the cleaner main body 1, and a hook 7 provided on the main body side connecting member 6 allows the cleaner to be cleaned. It is adapted to be detachably connected to the main body 1. The hose connecting structure of the main body side connecting member 6 is the same structure as the hand side connecting member 7 to be described later, and the same parts as the hand side connecting member 7 are designated by the same reference numerals and the description thereof is omitted.

Reference numeral 7 denotes a hand side connecting member which is attached to the other end of the hose member 5, that is, a connecting side of the extension pipe 21 which will be described later.
The proximal connection member 7 is a joint pipe 8 connected to the extension pipe 21.
And a hose attachment tube 9 rotatably attached to the joint tube 8, and the hand side connection member 7 serves as a grip portion for cleaning.

Reference numeral 10 denotes the hose member 5 of the hose mounting pipe 9.
By inserting the hose member 5 while twisting it along a helix with a protrusion formed on the outer peripheral surface near the end on the connection side, the hose member 5 is locked to the protrusion 10 of the hose mounting pipe 9. It has become so.

Reference numeral 11 is a locking rib formed on the outer peripheral surface of the hose mounting tube 9 so that a cover 16 described later can be engaged therewith.

Reference numeral 12 is a switch cover screwed to the hand side connection member 7, and a slide switch 13 is arranged in the space between the switch cover 12 and the hand side connection member 7, and the slide switch 13 is operated. The opening where part 14 is exposed
Has 15 The slide switch 13 uses the lead wire 4 wound around the hose member 5 to move the cleaner body 1
It is electrically connected to the electric blower (not shown)
The operation of the operation unit 14 controls the drive of the electric blower.

Reference numeral 16 denotes a resin cover attached to the locking ribs 11 of the hose mounting pipe 9, which covers a coating portion 17 for covering the polymerization margin between the hose mounting pipe 9 and the hose member 5, and the coating portion 17
And an extended portion 19 covering the adjacent portion 18 of the hose member 5, which is continuous with the hose attachment pipe 9 and the hose member 5 and overlaps with each other.

The cover 16 is made of ABS or polypropylene.
It is suitable to use a resin such as (PP), and a PP resin that has high strength, is unlikely to undergo chemical changes due to chemicals, etc., and is resistant to heat is optimal.

The length of the extending portion 19 of the cover 16 is set to 40 mm or more, that is, the diameter of the hose member 5 or more, and the adjoining portion 18 of the hose member 5 connects the end portion of the hose mounting pipe 9 to each other. It is designed to prevent bending as a fulcrum.

Reference numeral 20 denotes a slit formed in the extending portion 19 of the cover 16 in the circumferential direction. By forming the slit 20, the rigidity of the extending portion 19 of the cover 16 is made higher than that of the covering portion 17. The flexibility of the extending portion 19 of the cover 16 is stronger than the flexibility of the hose member 5 as well.

In the present embodiment, the slits 20 are formed at equal intervals, but the intervals of the slits 20 are gradually made closer toward the center of the hose member 5 of the cover 16 so that the rigidity of the cover 16 is The hose member 5 may be gradually weakened toward the hose member 5 side. As a result, the cover 16 is gently bent, so that the hose member 5 does not suddenly bend with the free end of the cover 16 as a fulcrum. The protection effect of can be improved.

Reference numeral 21 denotes an extension pipe detachably connected to the joint pipe 8 of the proximal side connecting member 7, and the extension pipe 21 has a floor suction tool.
22 is designed to be connected.

When cleaning, the hand side connecting member 7
The neighborhood is grasped and the floor suction tool 22 is slid back and forth.

At this time, since the hose member 5 is lowered while the hand side connecting member 7 is gripped and lifted, the adjacent portion 18 of the hose member 5 bends at a sharp angle from the vicinity of the end of the hose mounting pipe 9. Accordingly, the extended portion 19 of the cover 16, that is, the portion where the slit 20 is formed is bent.

The extending portion 19 of the hose member 5 has rigidity and flexibility that is weaker than the covering portion 17 due to the formation of the slit 20, and is stronger than the flexibility of the hose member 5. 5 is reinforced to prevent bending at a steep angle, and hose member 5 is prevented from being damaged.

The length of the extending portion 19 of the cover 16 is 40 mm.
Since it is set to the above, that is, the diameter of the hose member 5 or more, the adjacent portion 18 of the hose member 5 is prevented from bending around the end of the hose mounting tube 9 as a fulcrum, and therefore the hose member 5 is bent. This eliminates the inconvenience that the air passage is closed and the electric blower in the cleaner body 1 is loaded.

Further, the hose member 5 and the main body side connecting member 6
The overlapping portion with and has the same structure as the overlapping portion of the hand-side connecting member 7 and the hose member 5, so that the cleaner main body 1 advances while the cleaner main body 1 is caught on a step such as a sill. Even when the main body is pulled by pulling the hose in a direction other than the direction, the cover 16 prevents the hose member 5 from being bent at a sharp angle with the end of the main body side connecting member 6 as a fulcrum, and the hose proximal side connecting portion Also, the burden on the overlapping portion on the main body of the cleaner is reduced, and damage to the hose is prevented.

In the first embodiment, the cover 16 has slits.
Although 20 is formed so as to have the flexibility, the cover may be formed by the spring 23 as in the second embodiment shown in FIG. 5, and the winding density of the spring 23 may be the same as that of the hose member. By gradually sparsely approaching the cleaner main body 1 side from the hand side connecting member 7 side of 5, the rigidity of the spring 23 becomes gradually weaker toward the free end side thereof, and tends to be sluggish. When the cover is formed by the spring 23, the cover is formed by spirally winding one wire, so that the resin cover 16 is slit.
Slit 20 as would be expected when forming 20
There is no fear that the cover 16 will be cracked in the area of and will be cut in a marked case.

Further, as in the third embodiment shown in FIG. 6, a portion 24 of the cover 16 corresponding to the stacking margin 17 of the hose member 5.
Is made of a low-flexibility material such as PP resin, and the portion 25 of the hose member 5 covering the portion 18 continuous with the polymerization margin 17 is made of a highly flexible material such as vinyl chloride or an elastomer (thermoplastic elastic resin). ) Etc. to form a cover 1
The flexibility on the free end side of 6 may be set to be large.

[0059]

According to the first means of the present invention, during cleaning,
When the vacuum cleaner body is caught on a step such as a sill, pulling the hose in a direction other than the traveling direction of the vacuum cleaner body and pulling the vacuum cleaner body, etc. However, since the extending portion of the first cover is reinforced by bending, the hose member can be protected and prevented from being damaged, and the dimension of the extending portion of the first cover is equal to or larger than the diameter of the hose member. As a result, the hose member is not bent to close the air flow path, and it is possible to prevent the electric blower from being overloaded.

According to the second means of the present invention, when the cleaner main body is stored in the standing state (stand storage), the hose member bends at a steep angle at the hand portion and the extended portion of the second cover is bent at the same time. Since it is a reinforcement, the hose member can be protected and prevented from being damaged, and the dimension of the extending portion of the second cover is set to be equal to or larger than the diameter of the hose member to bend the hose member and close the air flow path. Without being
It is possible to prevent the electric blower from being overloaded.

According to the third means of the present invention, during cleaning,
When the vacuum cleaner body is caught on a step such as a sill, pulling the hose in a direction other than the traveling direction of the vacuum cleaner body and pulling the vacuum cleaner body, etc. When bent, the extended portion side of the first cover is bent to reinforce, so that the bent portion of the hose member is protected by the first cover and can be prevented from being damaged.

According to the fourth means of the present invention, when the cleaner main body is stored in the standing state (stand storage), the hose member bends at a steep angle at the hand portion and at the same time the extension portion side of the second cover is bent. The hose member has a second bent portion as a reinforcement.
The cover protects and prevents damage.

According to the fifth means of the present invention, during cleaning,
When the vacuum cleaner body is caught on a step such as a sill, pulling the hose in a direction other than the traveling direction of the vacuum cleaner body and pulling the vacuum cleaner body, etc. When bent, the extension portion side of the first cover is bent to reinforce, so that the bending of the hose member is suppressed by the first cover, and the bending portion of the hose member is
The cover protects and prevents damage.

According to the sixth means of the present invention, when the main body of the cleaner is stored in the standing state (stored in the stand), the hose member bends at a sharp angle at the hand portion, and the second cover is extended accordingly. Since the bending of the hose member reinforces the hose member, the bending of the hose member is suppressed by the second cover, and the bending portion of the hose member is protected by the second cover to prevent damage.

According to the seventh means of the present invention, since the flexibility of the first cover is gradually increased from the side of the first connecting member toward the extending portion, the first cover flexes gently. The first cover does not bend sharply around the free end as a fulcrum, and the hose member is protected more effectively.

According to the eighth means of the present invention, since the flexibility of the second cover is gradually increased from the second connecting member side toward the extended portion, the second cover is gently deformed. The free end of the second cover does not bend sharply as a fulcrum, and the effect of protecting the hose member is improved.

According to the ninth means of the present invention, since the flexibility of the extended portion is made larger than the overlapping portion of the hose member and the connecting member of the first cover, the cleaner body is covered by a sill during cleaning. When the hose is pulled by pulling the hose in a direction other than the traveling direction of the vacuum cleaner while it is caught on the step of the vacuum cleaner, and the hose bends at a sharp angle in the overlapping part on the vacuum cleaner main body side, Since the extended portion of the first cover is slid and reinforces together with the member, the buckling portion of the hose member is protected by the first cover to prevent damage, and the first cover is overlapped with the hose member and the connecting member. It is possible to prevent the strength of the portion covering the portion from being lowered.

According to the tenth means of the present invention, since the flexibility of the extended portion is made larger than the overlapping portion of the hose member and the connecting member of the second cover, the cleaner body is stored in the upright state ( When the hose member bends at a steep angle at the hand part, the extended part of the second cover reclines and reinforces, so the buckled part of the hose member is protected by the second cover and damage is prevented. It is possible to prevent the deterioration of the strength of the portion of the second cover that covers the overlapping portion of the hose member and the connecting member.

According to the eleventh means of the present invention, since the extending portion of the first cover is easily slid along the slit formed in the circumferential direction, the cleaner body is caught on a step such as a sill during cleaning. In this state, when pulling the hose in a direction other than the traveling direction of the vacuum cleaner main body and pulling the main body, if the hose bends at a sharp angle in the overlap portion of the hose cleaner main body side, the extended portion of the first cover will be Since it reinforces along the slit, it protects the hose member and prevents damage.

According to the twelfth means of the present invention, since the extending portion of the second cover is easily slid along the slit formed in the circumferential direction, when the cleaner main body is stored in the standing state (stand storage), When the hose member bends at a sharp angle at the hand portion, the extended portion of the second cover is slid along the slit to reinforce, so that the hose member is protected and damage can be prevented.

According to the thirteenth means of the present invention, when the cleaner body is caught on a step such as a sill at the time of cleaning,
When the hose is pulled in a direction other than the traveling direction of the vacuum cleaner body and the main body is pulled, if the hose bends at a sharp angle in the overlapped part of the vacuum cleaner body side, the spiral member as the first cover reinforces it. Therefore, the hose member is protected and damage can be prevented.

According to the fourteenth means of the present invention, when the hose member bends at a sharp angle at the hand portion when the cleaner main body is stored in the standing state (stand storage), the spiral member as the second cover is slid. Since it reinforces, the hose member is protected and damage can be prevented.

According to the fifteenth means of the present invention, at the time of cleaning, the cleaner body is caught on a step such as a sill,
When the hose is pulled by pulling the hose in a direction other than the advancing direction of the cleaner body and the hose bends at a sharp angle in the overlapping part of the hose cleaner body side, the extension part of the first cover is accompanied with this. Since it serves as a resilient reinforcement, the bent portion of the hose member is protected by the first cover, and damage can be prevented.

According to the sixteenth means of the present invention, when the hose member bends at a steep angle at the hand portion when the cleaner body is stored in the upright state (stored in the stand), the extending portion of the second cover is slid. Since it reinforces, the bent portion of the hose member is protected by the second cover and damage can be prevented.

[Brief description of drawings]

FIG. 1 is an external view showing an electric vacuum cleaner of the present invention (when a stand is stored).

FIG. 2 is an external view of the same cleaning.

FIG. 3 is a plan view of the same main portion (overlapping portion of a second connecting pipe and a hose).

FIG. 4 is a sectional view of the same.

FIG. 5 is a main part plan view showing the second embodiment.

FIG. 6 is a main part plan view showing the third embodiment.

FIG. 7 is a plan view of an essential part showing a conventional example.

FIG. 8 is a sectional view of the same.

FIG. 9 is an external view of the electric vacuum cleaner when stored in a stand.

FIG. 10 is an external view of the same cleaning.

[Explanation of symbols]

 1 Vacuum cleaner body 5 Hose member 6 Main body side connection member (first connection member) 7 Hand side connection member (second connection member) 9 Hose mounting cylinder 16 Cover 18 Adjacent part 19 Extended part 20 Slit 21 Extension pipe 22 For floor Suction tool 23 Spiral member (cover)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kazuo Saito 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Toshiyuki Fujiyoshi 2-chome, Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd.

Claims (16)

[Claims] 1. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first cover attached to the first connecting member and covering a portion where the hose member and the first connecting member overlap with each other;
The second cover is attached to the connecting member and covers the overlapping portion of the hose member and the second connecting member, and the first cover includes a second cover that overlaps the hose member and the first connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward a hose member side, and an axial length of the extension portion is equal to or larger than a diameter of the hose member. 2. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first cover attached to the first connecting member and covering a portion where the hose member and the first connecting member overlap with each other;
The second cover is attached to the connecting member and covers the overlapping portion of the hose member and the second connecting member, and the second cover has a margin for overlapping the hose member and the second connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward a hose member side, and an axial length of the extension portion is equal to or larger than a diameter of the hose member. 3. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the connecting portion between the first connecting member and the hose member
The first cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the first cover is closer to the hose member than the overlapping margin of the hose member and the first connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward the extension portion, and the flexibility of the extension portion side of the first cover is made larger than the flexibility of the first connection member side. 4. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the overlapping portion of the first connecting member and the hose member
The second cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the second cover is closer to the hose member than the overlapping margin of the hose member and the second connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward the extension portion, and the flexibility of the extension portion side of the second cover is made larger than the flexibility of the second connection member side. 5. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the overlapping portion of the first connecting member and the hose member
The first cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the first cover is closer to the hose member than the overlapping margin of the hose member and the first connecting member. An extension part is provided toward the extension part, and the flexibility of the extension part side of the first cover is made larger than the flexibility of the first connection member side and smaller than the flexibility of the hose member. Vacuum cleaner to do. 6. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the overlapping portion of the first connecting member and the hose member
The second cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the second cover is closer to the hose member than the overlapping margin of the hose member and the second connecting member. An extension portion is provided toward the extension portion, and the flexibility of the extension portion side of the second cover is greater than the flexibility of the second connection member side and less than the flexibility of the hose member. Vacuum cleaner to do. 7. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the overlapping portion of the first connecting member and the hose member
The first cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the first cover is closer to the hose member than the overlapping margin of the hose member and the first connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward the extension portion, and the flexibility of the first cover is gradually increased from the first connecting member side toward the extension portion. 8. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the overlapping portion of the first connecting member and the hose member
The second cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the second cover is closer to the hose member than the overlapping margin of the hose member and the second connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward the extension portion, and the flexibility of the second cover is gradually increased from the second connection member side toward the extension portion. 9. A cleaner body having a suction port formed in the front,
A flexible hose having one end removably connected to the suction port and an extension pipe connected to the other end, and a floor suction tool attached to the other end of the extension pipe, wherein the flexible hose is A first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and a flexible hose member connecting the first and second connecting members,
A first covering the overlapping portion of the first connecting member and the hose member
The first cover includes a cover and a second cover that covers the overlapping portion of the second connecting member and the hose member, and the first cover is closer to the hose member than the overlapping margin of the hose member and the first connecting member. An electric vacuum cleaner, wherein an extension portion is provided toward the first cover, and the flexibility of the extension portion of the first cover is made larger than the flexibility of the overlapping portion of the hose member and the connection member. 10. A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. The second cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the second connecting member, and the extending portion of the second cover is slidable. The flexibility of the hose member and the connecting member, rather than the flexibility of the overlapping portion. An electric vacuum cleaner characterized by being enlarged. 11. A cleaner body having a suction port formed at the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. A cover is provided, and the first cover is provided with an extension portion toward the hose member side from the overlapping margin of the hose member and the first connection member, and the extension portion of the first cover is provided with a peripheral portion. An electric vacuum cleaner having a plurality of directional slits formed therein. 12. A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. The second cover is provided with an extending portion extending toward the hose member side from the overlapping margin of the hose member and the second connecting member, and the second cover is provided with a peripheral portion on the extending portion of the second cover. An electric vacuum cleaner having a plurality of directional slits formed therein. 13. A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. And a first cover formed of a spiral member, and the spiral member
An electric vacuum cleaner, wherein the electric vacuum cleaner extends toward the hose member side from a polymerization margin of the hose member and the first connecting member. 14. A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. And a first cover formed of a spiral member, and the spiral member
An electric vacuum cleaner, wherein the electric vacuum cleaner extends toward the hose member side from a polymerization margin of the hose member and the first connecting member. 15. A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. The first cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the first connecting member, and the hose member side of the first cover can be made low. Elastic material, the extension of the first cover is made of highly flexible material An electric vacuum cleaner characterized by being formed. 16. A cleaner body having a suction port formed in the front, a flexible hose having one end detachably connected to the suction port and an extension pipe connected to the other end, and the other end side of the extension pipe. A flexible hose, wherein the flexible hose includes a first connecting member connected to the suction port, a second connecting member connected to the extension pipe, and the first and second connecting members. A flexible hose member that connects between the connecting members, a first cover that covers the overlapping portion of the first connecting member and the hose member, and a second cover that covers the overlapping portion of the second connecting member and the hose member. The second cover is provided with an extending portion toward the hose member side from the overlapping margin of the hose member and the second connecting member, and the hose member side of the second cover can be lowered. The elastic material and the extension of the second cover are made of highly flexible material. An electric vacuum cleaner characterized by being formed.