KR101291499B1 - Electrical vacuum cleaner - Google Patents

Abstract

Provided is an electric cleaner which prevents light leakage of a light emitting body while simplifying the configuration.
The air passage forming body 13 includes a hose body 21 having one end side connected to the suction side of the electric blower and having a handle operating portion 27 having the grip portion 41 on the other end side. The extension pipe 22 which connects the one end part side to the handle operation part 27 of 21 is provided. The air passage forming unit 13 includes a light emitting unit 49 which emits light when the state of the vacuum cleaner detects a state of the vacuum cleaner, for example, the amount of dust passing through the air passage W is greater than or equal to a predetermined amount, to the handle operating unit 27. Equipped. The air passage forming body 13 faces one end side of the extension tube 22 to the handle operating unit 27 while the one end side faces the light emitting body 49 and induces light emission from the light emitting body 49 to the other end side. The light guide 57 is provided along the longitudinal direction of the extension pipe 22.

Description

Electric vacuum cleaner {ELECTRICAL VACUUM CLEANER}

Embodiment of this invention is related with the vacuum cleaner provided with the air flow path formation body which communicated with the suction side of an electric blower, and provided the air path inside.

Conventionally, the canister type vacuum cleaner is equipped with the vacuum cleaner main body which accommodated the electric blower conventionally. The vacuum cleaner main body is provided with a dust collecting portion communicating with the suction side of the electric blower, and the air passage forming body for forming the air passage therein is detachably connected to the dust collecting portion.

The air passage forming body is configured such that, for example, a hose body, an extension pipe, a floor brush as a suction port body, and the like are sequentially connected to each other.

In the case of such an electric cleaner, various kinds of information for knowing the state of the cleaner, such as dust amount on the floor being cleaned by the floor brush or dust collected on the dust collecting part, are displayed, thereby improving user convenience and cleaning. It becomes possible to improve a feeling of achievement etc.

Japanese Patent Laid-Open No. 2000-354575 Japanese Patent Publication No. 2007-267779

In the structure of the said patent document 1, in order to improve the visibility of the dust quantity information of a bottom surface, the display part which has a light-emitting body is arrange | positioned in an extension tube.

In addition, in the structure of the said patent document 2, when arrange | positioning a light emitting body to an extension pipe, in order to simplify wiring and to miniaturize, the light emitting body is arrange | positioned at the handle operation part of a hose body front end, and the light guide member for extension pipes, such as an optical fiber, is extended to the said extension pipe. Is provided, and the light of the light-emitting body is guided to the tip side of the extension tube by the light guide member for extension tube.

However, a user may perform an operation of twisting an extension pipe in order to drive a floor brush at the time of cleaning. Therefore, in order to ensure the visibility of the display unit even during such twisting operation, it is preferable to form the display unit wide.

On the other hand, in order to enlarge the display portion without directly placing the light emitting body in the extension tube, the shape of the extension pipe light guide member must be partially modified, and the extension pipe light guide member having such a shape is not easily installed in the extension pipe.

Moreover, there exists a possibility that light leakage may generate | occur | produce in the connection position of a hose body, an extension pipe, etc.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and the light guide for guiding light of a light emitting body provided to improve the visibility of information for knowing the state of a cleaner such as dust amount on the bottom surface or dust amount collected on a dust collecting part. An object of the present invention is to provide an electric vacuum cleaner that can widen the display portion while facilitating installation.

Moreover, it aims at providing the vacuum cleaner which prevented the light leakage of a light emitting body.

An electric vacuum cleaner of the embodiment includes a cleaner main body accommodating an electric blower, a wind path forming body for forming an air path communicating with a suction side of the electric blower therein, and state detection means for detecting a state of the vacuum cleaner, The air passage forming body includes a hose body having one end side communicating with the suction side of the electric blower, having a handle operating portion at the other end side, an extension tube having one end side connected to the handle operating portion of the hose body, and the handle operating portion. And a light emitting body that emits light when the state detecting means detects a state of the cleaner, and a light guide disposed along the length of the extension tube, wherein the light guide connects one end of the extension tube to the handle operation unit. In one state, the one end side faces the light emitting body and guides light emission from the light emitting body to the other end side. The handle operation part has an operation part end surface part which comprises the connection end part with the said extension pipe | tube, The said extension pipe | tube is an extension pipe which comprises the connection end part with the said handle operation part opposing the said operation part end surface part by connection with the said handle operation part. It has an end surface part, The said air path forming body is formed in the recessed part formed in either one of the said operation part end surface part and the said extension pipe end surface part, and is formed in the other of the said operation part end surface part and the said extension pipe end surface part, The said handle operation part and the said extension pipe And a convex portion fitted with the concave portion by the connection of the concave portion, one end side of the light guide member and the light emitting body are positioned inside the concave portion and the end portion of the convex portion, and the concave portion is the end of the operation portion of the handle operation portion. It is formed in the surface part, The said light-emitting body is arrange | positioned at the said recessed part, The said air path type Sieve is further characterized in that said recess opening and closing is possible, and, by the insertion of the convex portions of the concave portion that is provided with a closing member to move to a position which opens the recess.

BRIEF DESCRIPTION OF THE DRAWINGS The longitudinal cross-sectional view of the light guide and display part in the extension pipe | tube which forms the air path formation body of the vacuum cleaner of 1st Embodiment.
2 is a longitudinal sectional view showing a part of the same extension tube.
3 is a side view showing the same extension tube.
4 is a plan view showing the same extension tube;
Fig. 5 is a longitudinal sectional view showing the proximal end of the same air passage forming body.
Fig. 6 is a block diagram showing the internal structure of the same vacuum cleaner.
7 is a perspective view of the same vacuum cleaner.
8 is a longitudinal cross-sectional view of a light guide and a display unit in an extension tube forming the air passage forming body of the vacuum cleaner according to the second embodiment;
9 is a longitudinal sectional view showing a part of the same air passage forming body.
10 is a longitudinal sectional view showing another part of the same air passage forming body;
Fig. 11 is a side view showing the extension tube of the same air passage forming body.
12 is a plan view showing the same extension tube;
It is a longitudinal cross-sectional view which shows a part of the vacuum cleaner of 3rd Embodiment.
Fig. 14 is a perspective view showing a part of the handle operating part of the same electric cleaner.
Fig. 15 is a perspective view showing a part of the extension tube of the same electric cleaner.
16 is a perspective view of the same electric cleaner.
17 is a longitudinal sectional view showing a part of an electric cleaner according to a fourth embodiment.
18 is a longitudinal sectional view showing a part of an electric cleaner according to a fifth embodiment;

Hereinafter, the structure of 1st Embodiment is demonstrated with reference to FIGS.

In FIG. 7, 11 represents what is called a canister type vacuum cleaner, and this vacuum cleaner 11 is the air flow path formation body 13 which is the vacuum cleaner main body 12 and the pipe part detachably connected to this vacuum cleaner main body 12. In FIG. )

The vacuum cleaner main body 12 is provided with the hollow main body case 15 which can pivot and run on the floor surface which is a to-be-cleaned surface, The main body dust collecting chamber and electric blower which are not shown in this main body case 15 are not shown. The thread is arranged back and forth.

Moreover, the electric blower chamber accommodates the electric blower 18 and the main body control part as control means which are not shown in figure which control the operation | movement of this electric blower 18, The suction side of the electric blower 18 is housed in the main body dust collecting chamber. In communication.

A dust collecting section such as a filter, a dust bag, or a dust collecting device (dust collecting cup) is disposed in the main dust collecting chamber.

A main body suction port 19 is formed in the front portion of the main body case 15 to communicate with the main body dust collecting chamber and to be connected to the proximal end side (downstream end side) that is one end side of the air passage forming body 13.

In addition, the air passage forming body 13 has an elongate hose body 21, an extension pipe 22 detachably connected to the hose body 21, and a suction inlet body detachably connected to the extension pipe 22. And a bottom brush 23 constituting the same, and the hose body 21, the extension pipe 22, and the bottom brush 23 have an air passage W communicating with the suction side of the electric blower 18 therein. Forming.

In addition, this air path forming body 13 may remove and use the bottom brush 23, and may remove and use the bottom brush 23 and the extension pipe 22. As shown in FIG.

The hose body 21 has a tubular hose main body 25, a connection head portion 26 formed in communication with the proximal end side (downstream end side) that is one end side of the hose main body 25, and a hose main body ( The handle operation part 27 which communicates with the front end side (upstream end side) which is the other end side of 25) was formed integrally.

The hose main body 25 is formed in the shape of a cylindrical corrugated box by flexible synthetic resin, etc., and wiring (not shown) for electrically connecting the handle operating portion 27 side and the cleaner main body 12 side is internal. It is provided in a spiral shape on the outside of the air passage W.

The connection pipe part 26 is a part inserted and connected to the main body suction port 19, and is formed in the cylindrical shape by the synthetic resin harder than the hose main body 25. FIG. Moreover, the terminal (not shown) electrically connected with the wiring arrange | positioned in the hose main body 25 is arrange | positioned at this connection head part 26, These terminals connect the connection head part 26 to the main body suction port 19 It is electrically connected to the cleaner main body 12 side by inserting and connecting to the.

Moreover, the main body clamp 31 as a holding means of the air passage forming body 13 for holding this connection pipe part 26 in the state which inserted and connected this main body suction port 19 is arrange | positioned at this connection pipe part 26. As shown in FIG. . That is, the main body clamp 31 has a structure in which the base end side (downstream end side) of the air passage forming body 13 is maintained in communication with the cleaner main body 12. In addition, the main body clamp 31 can also release the connection pipe part 26 and the main body suction port 19. FIG.

And inside the main body suction port 19 to which the connection pipe part 26 is connected, the state detection means 33 comprised with the optical sensor as a dust amount detection means for detecting the amount of dust passing through the air path W is arrange | positioned, have.

Moreover, this state detection means can detect even the abnormal state, such as the state of the vacuum cleaner in which the dust collecting part is not installed in a main body dust collecting chamber.

Here, the state detecting means (dust amount detecting means) 33 is, as shown in Figs. 5 and 6, for example, a light emitting portion 35 as light emitting means for emitting infrared light, and the light emitting portion 35. The light receiving portion 36 serving as the light receiving means for receiving the infrared light emitted by the < RTI ID = 0.0 >) < / RTI >

Then, the state detection means (dust amount detecting means) receives a signal corresponding to the amount of dust passing through the air path W by the amount of light received by the light receiving portion 36 for the infrared light from the light emitting portion 35 ( From 33), it is possible to output to the main body control unit M. FIG.

The light emitting unit 35 includes a light emitting element 35a such as an LED that outputs light such as infrared light, and one and the other as light emitting side light guide members for guiding light emission from the light emitting element 35a into the air path W. Light emitting side lenses 35b and 35c.

The light emitting element 35a is arrange | positioned downward at the upper part of the main body suction port 19 of the cleaner main body 12, for example, and is comprised so that infrared light may be output below.

And one light emitting side lens 35b is the lower side which is the output side of the infrared light of the light emitting element 35a, and is arrange | positioned at the inner surface of the main body suction port 19. As shown in FIG.

In addition, the other light emitting side lens 35c of the light emitting element 35a (light emitting side lens 35b) is connected with the connection pipe part 26 of the air passage forming body 13 to the main body suction port 19. It is downward and is arrange | positioned in the position which opposes the light emitting side lens 35b.

The other light emitting side lens 35c is fitted into the light emitting side hole 35d formed through the connection pipe portion 26 in the radial direction so as to close the light emitting side hole 35d in an airtight manner.

That is, in the light emitting side lens 35c, one end side faces the light emitting element 35a side (light emitting side lens 35b side), and the other end side faces the inside of the air passage W, and the light emitting side hole The air in the air passage W does not flow out of the air passage W from the portion 35d.

Similarly, the light receiving portion 36 guides the light receiving element 36a such as a photo transistor for detecting the infrared light output from the light emitting portion 35 and the light output from the light emitting portion 35 to the light receiving element 36a. One and the other light receiving side lenses 36b and 36c as the light receiving side light guide members are provided.

The light receiving element 36a is disposed below the main body suction port 19 of the cleaner main body 12, for example, toward the light emitting element 35a side, and is the infrared light output from the light emitting element 35a. It is configured to receive the light.

And one light receiving side lens 36b is an upper side which is an input side of infrared light with respect to the light receiving element 36a, and is arrange | positioned at the inner surface of the main body suction port 19. As shown in FIG.

The other light-receiving side lens 36c is formed of the light-receiving element 36a (light-receiving side lens 36b) in a state in which the connecting pipe portion 26 of the air passage forming body 13 is connected to the main body suction port 19. It is upward and arrange | positioned in the position which opposes the light receiving side lens 36b.

The other light-receiving side lens 36c is fitted in the light-receiving side hole portion 36d formed by drilling the connecting tube portion 26 along the radial direction so as to close the light receiving-side hole portion 36d in an airtight manner.

That is, in the light receiving side lens 36c, one end side faces the light receiving element 36a side (the light receiving side lens 36b side), and the other end side faces the air passage W. The air in the air passage W does not flow out of the air passage W from the portion 36d.

In addition, as shown in FIG. 7, the handle operation part 27 is formed in substantially cylindrical shape by the synthetic resin harder than the hose main body 25, and is moved from an upstream end side to a downstream end side. The grip portion 41 gripped by the user is formed to protrude.

In this holding | gripping part 41, the some setting button 42 as setting means for setting operation | movement, such as the electric blower 18, to the main body control part M (FIG. 6) is arrange | positioned. These setting buttons 42 are electrically connected to the main body control unit M (FIG. 6) and the like in the cleaner main body 12 through the wiring in the hose main body 25.

Moreover, the light emitting body 49 is arrange | positioned inside the front end side (upstream end side) of the handle operation part 27. As shown in FIG. In addition, a connection with the extension pipe 22 can be maintained on the upstream end side of the handle operating portion 27 and faced to the user side in the use state (cleaning state) of the vacuum cleaner 11, The connection clamp 50 as a releasable connection holding means is provided.

The light emitter 49 is, for example, an LED or the like, and is fed from the cleaner main body 12 side through the wiring in the hose main body 25, and the light emitter 49 has a predetermined state, for example, a state detecting means. It emits light when the amount of dust passing through the wind path W detected by the dust amount detecting means 33 is equal to or more than a predetermined amount (the dust is present).

The light emitter 49 is arranged to emit light toward the upstream end side (front of the user) along the axial direction of the handle operating section 27.

In addition, a part of the connection clamp 50 is exposed to the outside of the handle operation part 27, and a user can operate this connection clamp 50 from this exposed part.

On the other hand, as shown in Figs. 1 to 4, the extension pipe 22 includes a proximal end side pipe as a first pipe, that is, a downstream pipe part 55 serving as an external appearance, and a front end pipe as a second pipe, that is, the first pipe. An elongated cylindrical extension tube having an upstream tube portion 56 that becomes an inner tube that can be inserted into and detached from an outer tube, which is a single tube, and is a light guide for guiding light from the light emitter 49 (FIG. 7) to the downstream tube portion 55. Sieve 57 is provided.

The downstream pipe portion 55 is formed of, for example, a synthetic resin, and is a downstream of the proximal end pipe body as the first pipe body having a long cylindrical shape having a larger diameter (coarse) than the upstream pipe portion 56. A cylindrical insertion portion 62 formed coaxially on the side tubular body 61, the proximal end side (downstream end side) of the downstream tubular body 61, and the distal end side of the downstream tubular body 61 ( Upstream end side) has a cylindrical downstream side holding part 63 formed coaxially.

The cover body 64 which is continuous from the downstream end side to the upstream end side is provided below this downstream pipe part 55.

In the downstream tube body 61, the light guide 57 is provided along the axial direction on the upper outer surface which faces the user side in the use state (cleaning state) of the vacuum cleaner 11. That is, rib-shaped wall portions 65 and 65 are integrally spaced apart from each other substantially parallel to each other along the axial direction (length direction) on the outer side of the upper side of the downstream tube body 61, and these wall portions 65 are integrally formed. And the light guide body (66) in which the light guide body (57) is fitted to the portion between the two ends.

The inside of the downstream pipe body 61 guides the upstream pipe 56 in the axial direction while reducing the contact area between the inside of the downstream pipe 55 and the outer surface of the upstream pipe 56. A plurality of guide ribs 67 are formed in a length shape along the axial direction and spaced apart from each other in the circumferential direction, respectively, as the guide portion.

Each wall part 65 is formed in linear form from the upstream end vicinity of the downstream tubular body 61 to the downstream end vicinity. Therefore, the light guide installation part 66 is formed in the groove shape continuously in the extension pipe 22 (downstream pipe | tube main body 61), ie, the axial direction (length direction) of the air path W. As shown in FIG.

In addition, the light guide mounting portion 66 is colored with a color having a relatively higher reflectance than the surrounding portion, for example, white or a color close to white. The light guide 57 is used to light the light from the light guide 57. By reflecting back to 57, diffusion of light to the outside of the light guide 57 is prevented.

The cylindrical insertion part 62 formed coaxially in the base end side (downstream end side) of the downstream side tubular body 61 is a part inserted in the upstream end part of the handle operation part 27 (FIG. 7), and it is a downstream side. The axial dimension is shorter than the tubular body 61, and it is formed in the small diameter.

In addition, at the upper part of the outer periphery of the insertion part 62, the engagement recessed part which is not shown by the connection clamp 50 is formed. Moreover, the downstream seal ring 71 which is a sealing member inserted into this handle operation part 27 from the upstream end side which is the front end side of the handle operation part 27 is provided in the outer periphery of this insertion part 62. As shown in FIG.

When the downstream seal ring 71 is inserted into the upstream end of the handle operating portion 27 by inserting and inserting the insertion portion 62, the outer peripheral surface is pressed against the inner surface of the handle operating portion 27 so that the downstream pipe portion 55 and the handle operating portion are pressed. It is a sealing member for hermetically connecting 27.

Moreover, the downstream holding part 63 is a part into which the downstream end side of the upstream pipe part 56 is inserted, and is shorter in axial dimension than the downstream pipe main body 61, and is formed in large diameter.

Therefore, there is a step in the end portion on the upstream end side of the downstream tube body 61 and the continuous portion on the downstream end side of the downstream side holding portion 63.

Moreover, the upstream sealing ring is provided in the inner surface of the downstream holding part 63. And the inner surface of the downstream holding part 63 is slid-contacted to the outer surface of the downstream end side of the upstream pipe part 56 so that a sliding contact is possible, and the downstream pipe part 55 and the upstream side by the upstream sealing ring which is a sealing member The pipe part 56 is hermetically connected.

In addition, the upstream pipe portion 56 is positioned on the downstream side of the downstream holding portion 63, that is, the side facing the bottom surface side at the time of use (cleaning state) of the vacuum cleaner 11, with respect to the downstream pipe portion 55. A holding clamp 73 is provided as a holding means that can be held and released at the advanced position.

This holding clamp 73 has the operation part 73a at the front end side, and hangs the downstream end side of the upstream pipe part 56 inserted from the upstream end of the downstream pipe part 55 at the rear end side. Unlocked portion protrudes in the shape of a hook downward.

The holding clamp 73 is pivotally supported by the downstream pipe portion 55 (extension tube 22) in a position intermediate between the operation portion 73a and the locking portion, and is rotatably supported in the vertical direction. The clamping means is pressed toward the direction in which the engaging portion projects upward.

The cover 64 fixes the retaining clamp 73 and the downstream wire holder 76 holding the wires 75, 75 and the like below the downstream pipe portion 55. The cover body 64 includes side plate portions 78 and 78 spaced apart from each other, and a bottom plate portion 79 that is a closed plate portion that is continuous between the lower ends of these side plate portions 78 and 78, and has a cross section with an upper side opening. It is formed in a U shape.

Moreover, as for this cover body 64, the upper end parts 78a, 78a (refer FIG. 2) which is an edge part of the downstream side pipe | tube main body 61 side of each of the side plate parts 78 and 78 have the downstream side pipe | tube main body 61 of FIG. It is fixed by fixing means, such as a screw, in the state in which it adhered over the whole lower part of the lower part whole and the downstream side holding part 63, and the space part 80 between the downstream pipe | tube main body 61 and the downstream side holding part 63. ).

Each electric wire 75 penetrates into the inside of the downstream electric wire holding body 76, and only the connection pin 81 (one side shown in FIG. 3) provided in the one end part of this downstream electric wire holding body 76 is shown. Are electrically connected to each other.

And this connection pin 81 is located below the insertion part 62, and protrudes outward from the cover body 64, and is an extension pipe 22 (downstream pipe part () in the upstream end part of the handle operation part 27. 55)) is electrically connected to the handle operating part 27 side by inserting into the connection hole which is not shown in figure which respectively formed in the end surface of the handle operation part 27 in the state which inserted the insertion part 62 which is the downstream end side. do. In addition, this connection hole part is electrically connected with the wiring arrange | positioned in a hose body.

The downstream wire holder 76 is formed in the shape of a length and is disposed along the space 80.

On the other hand, the upstream pipe body 56 is formed of a synthetic resin or the like, and is an upstream pipe body of the tip-side pipe body having a long cylindrical shape having a smaller diameter (thinner) than the downstream pipe part 55. (85), the cylindrical upstream side holding part 86 provided coaxially at the upstream end side of this upstream tubular body 85, and the upstream electric wire holding body provided in the lower part of the upstream tubular body 85. As shown in FIG. (87) (refer FIG. 3) integrally.

And the downstream end side of this upstream pipe part 56 is inserted in the upstream edge part side of the downstream pipe part 55, and at least one part of the upstream pipe part 56 is made possible to advance and retreat into the downstream pipe part 55. have.

The upstream pipe | tube main body 85 removes the upstream pipe | tube part 56 by removing by the holding clamp 73 the lower outer surface which faces the bottom surface side at the time of the use state (cleaning state) of the vacuum cleaner 11. A plurality of locking projections (not shown) for holding at the position moved forward with respect to the downstream pipe portion 55 are formed in the axial direction.

The upstream holding part 86 is a part into which the downstream end side of the bottom brush 23 is inserted, is shorter in axial dimension than the upstream tubular body 85, and is formed in large diameter. In addition, the upstream side holding part 86 has the downstream end and the bottom of the extension pipe 22 (downstream pipe part 55) on the lower side facing the bottom surface side at the time of use (cleaning state) of the vacuum cleaner 11. A clamp portion (not shown) is provided as the suction inlet holding means that can hold the connection of the brush 23 and can release this holding.

The upstream side electric wire holding body 87 is formed in continuous straight line shape along the upstream tubular body 85 over the both ends of this upstream tubular body 85, and a pair of electric wire which is not shown inside is Insert is penetrated. These electric wires are electrically connected with the electric wires 75 of the downstream pipe part 55.

The said light guide 57 is formed in elongate shape, for example by synthetic resin which has translucent light, and the one end side (the end side of the downstream side of the air path W) of the light guide 57 is an extension pipe 22. It is located in the downstream end side of the downstream pipe part 55 of a.

In addition, on the other end side of the light guide 57 (end side on the upstream side of the air passage W), the ratio of the display portion 88 which is a light emitting portion and the display portion 88 which do not emit light (display) is continuous. The non-display part 89 (refer FIG. 2) which is a light emitting part is integrated.

The display part 88 is a linear display area 88a which is a linear 1st display (light emission) area | region along the axial direction (length direction) of the downstream pipe part 55 in the extension pipe 22, and a downstream pipe part It has the curved display area | region 88b which is the 2nd display (light emission) area | region protruded and curved in circular arc shape along the circumferential direction of 55, and is located in the upstream end side of the downstream pipe part 55. As shown in FIG.

The straight line display region 88a is formed in a band shape and is fitted to the light guide member 66 between the wall portions 65 and 65. Moreover, the illustration which reflects the light guide | induced in the light guide body 57 to the outer side (diameter direction of the extension tube 22) which is a user side on the outer side surface of the downstream tube main body 61 in this linear display area | region 88a. An unreflected light reflecting portion is formed. This light reflection part is comprised by the some groove part etc. whose cross section along a left-right width direction is triangular shape, for example.

The curved display region 88b is fitted to the outer side surface of the upstream end side of the downstream tube body 61 and extends in an arm shape (belt shape) from the upper side on the user side to the lower side on the bottom side. That is, this curved display area 88b is formed in a C shape.

Moreover, this curved display area | region 88b is located in the upstream edge part of the downstream holding part 63, and is located so that an outer side surface may become substantially flat with the outer surface of this downstream holding part 63. As shown in FIG. In addition, as shown in FIG. 1, the tip portions 88d and 88d, which are fixed parts of the curved display region 88b, protrude in a direction intersecting with the curved direction of the curved display region 88b, here, in a downward direction. It is located in the interior of the space 80 in a state sandwiched between the cover 64 and the downstream tube body 61.

That is, the display part 88 is fixed with respect to the downstream pipe part 55 by providing the cover body 64 in the downstream pipe part 55. As shown in FIG.

In addition, the non-display part 89 is formed integrally with the straight line display area 88a of the display part 88, and the edge part on the opposite side to the display part 88 of the downstream pipe part 55 of the extension pipe 22 is formed. It is located on the downstream end side.

On the outer surface side of the non-display portion 89, light leakage preventing processing such as hot stamp (thin printing), plating, or vapor deposition is performed to prevent light leakage to the outside.

In addition, the end surface of the downstream end of the non-display portion 89 becomes an incidence surface that guides the light from the light emitting body 49 into the light guide body 57 as opposed to the light emitting body 49 (FIG. 7). Therefore, the light leakage prevention processing is not performed.

In addition, although the downstream end of the non-display part 89 in the light guide 57 can be fixed with respect to the downstream pipe part 55 by arbitrary structures, it is fixed, for example so that light may not diffuse. It is fixed to the downstream pipe part 55 by the fixing ring 90 as a member.

This fixing ring 90 is formed in C shape similar to the curved display area 88b of the display part 88, for example, and it fits in the outer side surface of the downstream end side of the downstream-side tubular body 61. As shown in FIG. Lost

In addition, the tip of the C-shaped fixing ring 90 protrudes in a direction intersecting with the curved direction of the fixing ring 90, here, in a downward direction, and the cover body 64 and the downstream tubular body 61 Is located inside the space portion 80 in a state of being sandwiched (fitted).

That is, the fixing ring 90 is fixed to the downstream pipe part 55 by providing the cover 64 in the downstream pipe part 55, and this fixing ring 90 is fixed to the downstream pipe part 55. By being fixed with respect to the light guide 57, the end portion of the non-display portion 89 of the light guide 57 is sandwiched between the fixing ring 90 and the downstream pipe portion 55 and fixed to the downstream pipe portion 55.

In addition, the bottom brush 23 shown in FIG. 7 is a connection pipe whose downstream end side communicates with the upstream side holding part 86 on the upstream end side of the upstream side pipe part 56 in the extension pipe 22 ( 91 and the horizontally long case body 92 connected to the upstream end part of this connection pipe 91 so that rotation is possible in the up-down direction, a circumferential direction, etc., The bottom surface of this case body 92 is provided. A suction port (not shown) communicating with the other end side of the connecting pipe 91 is formed at a lower portion opposite to the lower portion.

This suction port is provided with a rotary cleaning body (rotary brush) (not shown), which is rotatable via an electric motor 93 (FIG. 6) provided in the case body 92.

The electric motor 93 is connected to the upstream end side of the upstream pipe part 56 by inserting the connection pipe 91 in the connected state. It is electrically connected with each electric wire of the extension pipe 22 by inserting into the connection insertion hole which is not shown in figure 86.

Therefore, the electric motor 93 is electrically connected to the handle operating part 27 via each electric wire of the extension pipe 22, and is electrically connected to the cleaner main body 12 side through the wiring in the hose body 21. While being connected and being fed from the vacuum cleaner main body 12 side, the on / off is switched by the setting button 42 of the handle operation part 27, and operation is controlled by the main body control part M (FIG. 6).

Next, the operation of the first embodiment will be described.

When assembling the extension tube 22, first, the linear display region 88a and the non-display portion 89 of the display portion 88 of the light guide body 57 are moved with respect to the light guide body installation portion 66 of the downstream tube body 61. While fitting, the curved display region 88b of the display portion 88 is fitted to the outer side of the upstream end side of the downstream tube body 61.

In addition, the fixing ring 90 is fitted to the outer side of the downstream end side of the downstream tube body 61 while covering the end portion of the non-display portion 89 of the light guide 57.

In addition, the downstream wire holder 76 and retaining clamp 73 provided with the wires 75 and 75, the connecting pin 81, and the like are provided, and the cover 64 is installed on the downstream pipe portion 55 while covering them. ).

At this time, the front end portions 88d and 88d of the display portion 88 of the light guide body 57 and the front end portions of the fixing ring 90 are sandwiched between the cover body 64 and the downstream pipe portion 55, whereby the light guide body ( 57 is fixed to the downstream pipe part 55.

Thereafter, the downstream end side of the upstream pipe portion 56 incorporating the upstream wire holder 87 and the like having the electric wire inserted therein is inserted into the upstream end side of the downstream pipe portion 55 to prevent it from falling out. Complete 22).

At the time of cleaning, the air passage forming body 13 is connected to the main body suction port 19 of the cleaner main body 12 provided with the dust collecting unit. That is, the connection pipe part 26 of the hose body 21 is inserted into the main body suction port 19, and connection is maintained by the main body clamp 31. FIG. At this time, the wiring of the cleaner main body 12 side and the hose body 21 is electrically connected.

Subsequently, the insertion end 62 of the downstream end side of the extension pipe 22, here the downstream side pipe part 55, is inserted into the upstream end of the handle operating part 27 of the hose body 21, and the connection clamp 50 is carried out. Maintain a connection by At this time, the electric wire in the extension pipe 22 is electrically connected with the wiring of the hose body 21 through the connection pin 81 of the extension pipe 22, and downstream of the non-display part 89 in the light guide 57. The end faces the light emitter 49 (FIG. 7).

Moreover, the connection pipe 91 of the bottom brush 23 is inserted in the upstream end part of the extension pipe 22, here, the upstream end part of the upstream holding part 86 of the upstream pipe part 56, and is connected by a clamp part. Keep it. At this time, the electrically conductive pin of the bottom brush 23 side and the electric wire of the extension pipe 22 side are electrically connected.

Then, when the user connects the power cord to a commercial AC power source and operates the setting button 42 of the gripping portion 41, the main body controller M (Fig. 6) of the electric blower 18 is operated by the user. Control the input. With the drive of this electric blower 18, the dust quantity detection means 33 also drives.

That is, light is irradiated from the light emitting element 35a of the light emitting part 35 to the light receiving element 36a of the light receiving part 36, and the main body control part based on the signal from the light receiving element 36a corresponding to the light receiving intensity of the light. (M) is in a state of monitoring the amount of dust passing through the air passage (W).

The negative pressure generated by the driving of the electric blower 18 acts on the suction port of the bottom brush 23 through the dust collecting part, the main body suction port 19, the hose body 21, and the extension pipe 22, thereby causing the dust on the bottom surface to air. It can be inhaled into the air passage (W) with.

Moreover, when a user operates the setting button 42 according to the kind of floor surface, etc., the main-body control part M drives the electric motor 93 suitably, and scrapes off dust from a floor surface with a rotary cleaning body, and cleans it.

The air sucked into the air passage W becomes intake air and moves from the bottom brush 23 to the extension pipe 22 and the hose body 21, that is, the inside of the air passage W toward the cleaner body 12, and thus the body suction port 19. Suction into the dust collector.

The intake air from which dust is separated from the dust collecting part is further sucked into the electric blower 18, cools the inside of the electric blower 18, and is then exhausted from the electric blower 18 as exhaust air, thereby exhausting the electric blower. It exhausts to the exterior of the cleaner main body 12 (main body case 15) through a thread.

Here, when there is a predetermined amount or more of dust on the bottom surface, that is, when a predetermined amount or more of dust is included in the intake air passing through the air path W, the dust emits light from the light emitting element 35a of the light emitting part 35. By blocking the light, the received light intensity by the light receiving element 36a is relatively lowered.

By detecting a change in the signal corresponding to the decrease in the light receiving intensity of the light receiving element 36a, the main body control unit M determines that dust or more than a predetermined amount passes through the inside of the air path W, and thus emits light 49 (FIG. 7) emits light.

And the light emission of the light-emitting body 49 is incident from the downstream end surface of the non-display part 89 of the light guide body 57 provided in the upstream end part of the downstream side pipe part 55, and the light to the surface side is light-resistant prevention processing. The light is reflected inside the light guide 57.

Further, the light from the light guide 57 to the rear side, that is, the downstream pipe portion 55 side, is reflected by the light guide installation portion 66 and returned to the light guide 57, leading to the upstream end side of the light guide 57. It further reflects by the light reflection part, and makes the display part 88 provided in the upstream end part of the downstream pipe part 55 light-emit.

That is, in the display part 88, the linear display area 88a along the axial direction of the downstream pipe part 55 in the extension pipe 22, and the curved display area 88b along the circumferential direction of the downstream pipe part 55 are shown. This light emission causes the user to see the T-shaped light emission.

Therefore, the user can be notified that there is more than a predetermined amount of dust on the bottom surface.

In addition, when there is no dust more than a predetermined amount on the bottom surface, that is, when there is no dust more than a predetermined amount in the intake air passing through the air path W, this dust is discharged from the light emitting element 35a of the light emitting part 35. Since the emitted light is not blocked, the light receiving intensity by the light receiving element 36a is relatively increased.

By detecting the change in the signal corresponding to the increase in the light receiving intensity of the light receiving element 36a, the main body control unit M determines that no dust or more than a predetermined amount has passed through the air path W, and thus the light emitter 49 The light emission is stopped (lighted out). Therefore, the display unit 88 is turned off, so that the user can be notified that cleaning of the bottom surface has been achieved.

When the cleaning is finished, the user operates the setting button 42 so that the main body control unit M stops the driving of the electric blower 18 and the dust amount detecting unit 33. In addition, the state detection means 33 which is a dust quantity detection means may drive, for example, while connecting a power cord to a commercial AC power supply.

As described above, according to the first embodiment, the upstream end portion 56 of the longitudinal shape is located on the upstream end side of the downstream side pipe portion 55 of the length shape in which the downstream end side is connected to the handle operating portion 27. The cover provided in the downstream pipe part 55 by covering the part of the holding clamp 73 which inserts a downstream end side so that retreat-removably and holds this upstream pipe part 56 with respect to the downstream pipe part 55. By fixing the display portion 88 of the light guide body 57 to the downstream pipe portion 55 by the sieve 64, the light guide body 57 of the extension pipe 22 is formed by using the structure that covers the holding clamp 73. It can be fixed to the downstream pipe part 55.

Therefore, no processing for fixing to the light guide 57 itself, for example, a screw hole or the like, is performed at all, that is, the light guide 57 is not deteriorated without lowering the light transmission efficiency of the light guide 57. The light guide 57 can be easily fixed with respect to the downstream pipe part 55 of the extension pipe 22, without requiring the process of fixing exclusively separately.

In addition, by forming the non-display portion 89 by performing light leakage preventing processing on a portion of the light guide 57, the light guide 57 is not required to separately install a member or the like which covers the light guide 57. The portions except for the display portion 88 of) may be easily covered.

Therefore, the structure can be simplified, the extension tube 22 can be made slimmer, lighter, and the like, and the light leakage preventing process prevents light leakage from outside the portion except for the display portion 88 of the light guide 57. It can prevent more reliably, and can improve the transmission efficiency of the light in the light guide 57 more clearly, and the display in the display part 88 becomes clear.

Next, 2nd Embodiment is described with reference to FIGS. 8-12. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the second embodiment, the light guide body 95 is disposed instead of the light guide body 57 of the first embodiment, and a part of the light guide body 95 is used as a cover member. Is covered by.

The light guide 95 is formed in elongate shape, for example by synthetic resin etc. which have translucent light, and the downstream end side of the air passage W is the downstream end side of the downstream pipe part 55 of the extension pipe 22. Located in

Moreover, this light guide 95 has the display part 98 which is a light emitting part formed in the edge part side of the upstream of the air path W, and the non-display part 99 which is continuous with this display part 98 integrally.

The display part 98 is a linear display area 98a which is a linear 1st display (light emission) area | region along the axial direction (length direction) of the downstream pipe part 55 in the extension pipe 22, and a downstream pipe part A curved display region 98b, which is a second display (light emitting) region, which is curved in a circular arc shape and protrudes along the circumferential direction of 55, is integrally located and is located on the upstream end side of the downstream pipe portion 55.

The linear display region 98a is formed in a band shape and is exposed to the outside of the light guide cover 96. Moreover, the light which reflects the light guide | induced in the light guide body 57 to the outer side (diameter direction of the extension tube 22) which is a user side on the outer side surface of the downstream tube main body 61 in this linear display area | region 98a. The reflecting part 98c is formed. This light reflection part 98c is comprised by the some groove part etc. which have a triangular cross section along the left-right width direction, for example.

The curved display region 98b is fitted to the outer side of the upstream end side of the downstream tube body 61, and is formed extending from the upper side on the user side to the bottom side on the bottom side in an arm shape (strap shape).

In other words, the curved display region 98b is formed in a C shape. The curved display region 98b is positioned at the end of the downstream holding portion 63 and positioned so that the outer surface is substantially flat with the outer surface of the downstream holding portion 63.

In addition, the tip portions 98d and 98d serving as the pinned portions of the curved display region 98b protrude in the direction intersecting with the curved direction of the curved display region 98b, here, in the downward direction. And the inside of the space 80 in a state sandwiched between the downstream pipe body main body 61. That is, the display part 98 is fixed with respect to the downstream pipe part 55 by providing the cover 64 in the downstream pipe part 55. As shown in FIG.

In addition, the non-display portion 99 is formed integrally with the straight line display region 98a of the display portion 98 in a length shape, and is inserted into the light guide cover 96 to penetrate the display portion 98. The opposite end portion is located on the downstream end side of the downstream pipe portion 55.

In addition, this non-display part 99 is the light guide installation part 102 formed between the protruding wall part 101 which protrudes in the rib shape from the outer side of the downstream tubular body 61 inside the wall parts 65 and 65. As shown in FIG. It is arranged to fit in.

Each protruding wall part 101 is formed in linear form from the upstream end vicinity of the downstream side tubular body 61 to the downstream end vicinity. Therefore, the light guide installation part 102 is formed in the groove shape continuously in the axial direction (length direction) of the air path W on the outer side surface of the downstream tubular body 61.

In addition, the light guide mounting portion 102 is colored with, for example, a color whose reflectance is relatively higher than that of the surrounding portion, for example, white, or a color close to white, and the light from the light guide 95 By reflecting and returning to the light guide 95, the spread of the light to the outside of the light guide 95 is prevented.

In addition, although the downstream end side of the non-display part 99 of the light guide 95 can be fixed with respect to the downstream pipe part 55 by arbitrary structures, it is the said 1st implementation so that light may not diffuse, for example. It is fixed to the downstream pipe part 55 with the light guide cover 96 by the fixing ring 90 of the form.

That is, the fixing ring 90 is fixed with respect to the downstream pipe part 55, so that the downstream end of the non-display portion 99 of the light guide 95 and the downstream end of the light guide cover 96 are fixed to the fixing ring 90. ) And the downstream pipe part 55 are clamped and fixed to the downstream pipe part 55.

In addition, the light guide cover 96 is formed in length shape between the downstream holding part 63 and the insertion part 62, for example, a color with a relatively high reflectance, for example, white or white. The light is returned to the light guide body 95 by reflecting light leaked from the light guide body 95 to the outside, thereby improving the light transmission efficiency of the light guide body 95.

11, the light guide cover 96 is the notch part 96a which cut | disconnected along the axial direction at the upper side which is the outer surface side of the upstream edge part side which is the downstream side holding part 63 side. A straight line display region 98a of the display portion 98 of the light guide body 95 is fitted to the cutout portion 96a.

In addition, the bottom part 96b (FIG. 9) of the cutout part 96a of this light guide cover 96 is formed in plate shape, and the display part 98 of the light guide body 95 fitted to the cutout part 96a is shown. ) Is located between the straight line display area 98a and the outer surface of the downstream pipe portion 55.

In addition, an opening (not shown) is formed in the cutout portion 96a, and the non-display portion 99 of the light guide 95 is inserted through the opening. That is, the light guide cover 96 covers only the non-display part 99 of the light guide body 95, and the bottom part 96b of the cutout part 96a is sandwiched by the display part 98.

In other words, the light guide cover 96 is fixed to the downstream pipe portion 55 of the extension tube 22 by the display portion 98 of the light guide body 95 and the non-display portion 99 of the light guide body 95. )

In addition, the lower end of the light guide cover 96 is fitted to the cover holding groove 105, which is a groove-shaped holding groove formed between each of the wall portions 65 and each of the protruding wall portions 101, to the downstream pipe portion 55. It is fixed by the fixing ring 90 with the light guide 95.

When the extension tube 22 is assembled, the linear display region 98a of the display portion 98 of the light guide 95 is fitted to the cutout 96a of the light guide cover 96 so that the light guide ( In the state where the non-display part 99 of 95 is located inside the light guide cover 96, these light guides 95 and the light guide cover 96 are provided with respect to the downstream tubular body 61. As shown in FIG.

At this time, the non-display portion 99 of the light guide 95 is fitted to the light guide installation portion 102, and the lower end portion of the light guide cover 96 is fitted to the cover holding groove 105.

In addition, the fixing ring 90 is fitted to the outer side of the downstream end side of the downstream tubular body 61 while covering the end of the non-display portion 99 of the light guide 95.

In addition, the downstream wire holder 76 and retaining clamp 73 provided with the wires 75 and 75, the connecting pin 81, and the like are provided, and the cover 64 is installed on the downstream pipe portion 55 while covering them. ).

At this time, the tip portions 98d and 98d of the display portion 98 of the light guide 95 and the tip portion of the fixing ring 90 are sandwiched between the cover 64 and the downstream pipe portion 55, thereby guiding the light guide ( 95 and the light guide cover 96 are fixed to the downstream pipe part 55.

Thereafter, the downstream end side of the upstream pipe portion 56 incorporating the upstream wire holder 87 and the like having the electric wire inserted therein is inserted into the upstream end side of the downstream pipe portion 55 to prevent it from falling out. Complete 22).

The light guide body 95 is connected to the upstream end part of the handle operation part 27 of the hose body 21 by inserting the insertion part 62 of the downstream end part of the extension pipe 22, and here downstream pipe part 55 here. By holding the connection by the clamp 50, the end face of the downstream end of the non-display portion 99 faces the light emitter 49.

Then, when the dust amount detecting means 33 detects that the dust has a predetermined amount or more on the bottom surface, that is, the dust amount or more is included in the intake air passing through the air path W, the main body control unit M When the light emitter 49 emits light, this light emission is incident from the end face of the downstream end of the non-display portion 99 of the light guide 95, guided to the upstream end side of the light guide 95, and the light reflecting portion 98c. Reflects the light, and causes the display unit 98 to emit light.

That is, in the display part 98, the straight line display area 98a along the axial direction of the downstream pipe part 55, and the curved display area 98b along the circumferential direction of the downstream pipe part 55 emit light, and the user is exposed to T. The shape of the light emitting is seen. Therefore, the user can be notified that there is more than a predetermined amount of dust on the bottom surface.

In addition, when the dust amount detecting means 33 detects that there are no dusts of a predetermined amount or more on the bottom surface, that is, that the dusts of a predetermined amount or more are not included in the intake air passing through the air path W, the main body control unit M Stops (lights out) the light emission of the light-emitting body 49. Therefore, the display unit 88 is turned off, so that the user can be notified that cleaning of the bottom surface has been achieved.

As described above, according to the second embodiment, the display portion of the light guide 95 is covered by covering the non-display portion 99, which is a portion except for the display portion 98 of the light guide 95, with the light guide cover 96. Light leakage to the outside from parts other than 98 can be prevented more reliably, and the light guide 95 reflects light leaked from the light guide 95 to the outside by the light guide cover 96. By returning to, the transmission efficiency of light in the light guide 95 can be further improved, and the display in the display section 98 becomes clearer.

And according to each embodiment described above, the downstream side which is one end side is located in the downstream end side of the extension pipe 22, has the display part 88 and 98 on the upstream side which is the other end side, and is the downstream end of the extension pipe 22. The light guides 57 and 95 which guide | induce the light emission of the light-emitting body 49 from the downstream end side to the display parts 88 and 98 in the state which connected the side to the handle operation part 27 of the hose body 21, The display part The 88 and 98 are protruded in the curved shape around the extension pipe 22, and the upstream end side is being fixed to this extension pipe 22. As shown in FIG.

Therefore, the structure of the light guide bodies 57 and 95 (display sections 88 and 98) can be simplified, for example, as compared with the configuration in which the extension section is provided with dedicated wiring or the like to arrange the display section. At the same time, the display portions 88 and 98 can be expanded in the circumferential direction.

In particular, in the vacuum cleaner 11, when the user who grips the holding part 41 at the time of cleaning, when operating the floor brush 23 etc. on the floor surface, the operation which twists the holding part 41 may be performed. Therefore, the visibility of the user can be improved by extending the display portions 88 and 98 in the circumferential direction of the extension tube 22.

In addition, in each said embodiment, in addition to having the holding part 41, the handle operation part 27 may be formed, for example in cylindrical shape, and hold | grip the handle operation part 27 itself. In this case, the effect similar to each said embodiment can be exhibited by arrange | positioning the setting button 42 to this knob operation part 27. FIG.

In addition, not only the vacuum cleaner 11 supplied with a commercial AC power supply but also the vacuum cleaner 11 supplied with batteries, such as a secondary battery, can respond similarly.

The predetermined state in which the light emitter 49 emits light can be arbitrarily set, for example, an abnormal state such as a state in which dust or more than a predetermined amount is collected in the dust collecting unit, or a state of a cleaner in which the dust collecting unit is not provided in the main body dust collecting chamber. Can be.

These states will be collectively referred to as a cleaner state, and each cleaner state is detected by a sensor or the like arranged as state detection means, and in response to the detection, light emission of the light emitter 49 is controlled by the main body control unit M. FIG. Just do it.

The vacuum cleaner 11 is not limited to the canister type, but the bottom brush 23 is connected to the lower part of the vertically long cleaner body 12, and the hose body 21 is connected to the cleaner body 12. And an upright type vacuum cleaner or the like which allows the extension pipe 22 to be detachably used.

Next, 3rd Embodiment is described with reference to FIGS. 13-16. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In FIG. 16, 11 represents what is called a canister type vacuum cleaner, and this vacuum cleaner 11 is the air flow path formation body 13 which is a vacuum cleaner main body 12 and the pipe part detachably connected to this vacuum cleaner main body 12. In FIG. )

In addition, as shown in FIG. 13, FIG. 14, and FIG. 16, in the upstream end side which is the front end side of the handle operation part 27, the planar edge part which comprises the connection end part with the extension pipe 22 of the handle operation part 27 is shown. The surface portion 44 is formed to be substantially orthogonal (intersected) with respect to the axial direction.

A connection recess 45 for connecting to the extension pipe 22 is formed in the end surface portion 44, and a recess 46 is formed in the center in the connection recess 45.

Planar restricting portions 47, 47 are formed on both sides of the recess 46, and positioning recesses 48, 48 as first positioning portions below the restricting portions 47, 47. Is formed. The light emitter 49 is disposed inside the recess 46.

The connection recessed part 45 of the handle operation part 27 is located in the upper part of the end surface part 44 of the handle operation part 27 which is a position of the base end side of the holding part 41, ie, the position of the outer side of the air path W. It is formed concave in the axial direction.

That is, the recessed part 46, each restriction | limiting part 47, and each positioning recessed part 48 are located in the axial direction with respect to the end surface part 44 at the downstream side of the air path W, respectively. In other words, the recessed part 46, each control part 47, and each positioning recessed part 48 are seen from the end face part 44 side (upstream side of the air passage W), It is formed in the inside (inside), ie, the position which became concave downstream.

The recessed part 46 is formed along the axial direction of the knob operation part 27 at the center position of the left-right width direction of the connection recessed part 45, and is an end surface part 44 side (upstream side of the air path W). ), More concave to the inside (inner side), that is, the downstream side of the handle operating portion 27 than the respective restricting portions 47 and 47.

Each regulating portion 47 regulates the axial position on the downstream end side of the extension tube 22 inserted from the upstream end of the handle operating portion 27 and is substantially orthogonal to the axial direction of the handle operating portion 27. It is formed in the plane shape to cross | intersect. That is, each restriction part 47 is formed in substantially parallel with the end surface part 44.

Each positioning recess 48 defines the position in the circumferential direction on the downstream end side of the extension tube 22 inserted from the upstream end of the handle operating portion 27, and similarly to the recess 46, the handle operating portion ( It is formed along the axial direction of 27, and it sees from the end surface part 44 side (upstream side of the air path W), inside (inner side) of the handle operation part 27 more than each control part 47 and 47, That is, it is concave downstream.

The light-emitting body 49 is recessed (for example, so as not to come into contact with the surface to be cleaned when suctioning and cleaning dust from an upstream end of the handle operating portion 27 with the bottom brush 23 and the extension tube 22 removed, for example). It is arrange | positioned inside the handle operation part 27 through the wall part 52 which comprises the innermost part of 46. FIG.

The through hole 52a, which is a light transmitting hole formed in the wall portion 52, is closed by the light emitting window portion 53 as a light-transmitting hole blocking member.

Therefore, the light-emitting body 49 is arrange | positioned so that light may be emitted from the recessed part 46 toward the upstream end side (front of the user) along the axial direction of the handle operating part 27 via the light-emitting window part 53. That is, this light emitting body 49 is arrange | positioned inside the wall part 52 which is an edge part of the recessed part 46. FIG.

In addition, in the connection clamp 50, the to-be-operated part 50a which comprises the front end part which is one end side is exposed to the exterior from the hole part 54 formed in the upper part of the handle operation part 27, and the rear end part which is the other end side. The engaging portion 50b on the side projects downward in a hook shape.

The locking portion 50b hangs on the downstream end side of the extension tube 22 inserted from the upstream end of the handle operating portion 27. And the intermediate position of the to-be-operated part 50a and the latching | locking part 50b in this connection clamp 50 is axially supported by the handle operation part 27, and is rotatably supported in the up-down direction, and is not shown in figure. It is urged toward the direction which the locking part 50b protrudes below by a pressing means.

The insertion part 62 is a part inserted in the upstream end part of the handle operation part 27, and is shorter in axial dimension than the downstream side main-body main body 61, and is formed in small diameter. Therefore, in the continuous part of the edge part of the downstream end side of the downstream side tubular body 61, and the front end side (upstream end side) of the insertion part 62, it is a step shape from the downstream side tubular main body 61 to the insertion part 62. The downstream stepped part 165 which is the extension pipe end surface part reduced in diameter is formed.

In addition, at the upper portion of the outer circumference of the insertion portion 62, a locking recess 166 that is engaged by the connection clamp 50 is formed. Moreover, the downstream seal ring 71 which is a sealing member inserted into this handle operation part 27 from the upstream end side which is the front end side of the handle operation part 27 is provided in the outer periphery of this insertion part 62. As shown in FIG.

The downstream stepped portion 165 is opposed to the end surface portion 44 of the handle operating portion 27 when the insertion portion 62, which is the downstream end side of the downstream pipe portion 55, is inserted into and connected to the handle operating portion 27. It constitutes the connection end part (end surface part of the extension pipe 22 side) of the handle operation part 27 and the extension pipe 22, and is substantially orthogonal (intersected) with respect to the axial direction of the downstream pipe part 55. As shown in FIG.

That is, this downstream side step part 165 comprises the connection end part with the handle operation part 27 of the downstream pipe part 55. As shown in FIG. Further, the downstream stepped portion 165 has a connecting convex portion 171 inserted into and fitted into the connecting recess 45 (FIG. 14) of the handle operating portion 27 between the insertion portion 62 and the shaft. It protrudes in the direction (downstream of the air path W), and is formed.

In this connection convex part 171, the convex part 72 which covers a part of light guide body 57, is inserted in the recessed part 46 (FIG. 14) of the handle operation part 27, and is fitted. In addition, in this connection convex part 171, the position as a 2nd positioning part inserted and fitted in the positioning recessed part 48 (FIG. 14) of the handle operation part 27 on both sides of the convex part 72 is carried out. Crystal convex portions 173 and 173 are formed.

In this connection convex portion 171, connecting pins 74 and 74 as connecting bodies electrically connected to the wiring are arranged on both sides of the convex portion 72 and above the positioning convex portions 173 and 173. It is.

That is, the connection convex part 171, the convex part 72, and each positioning convex part 173 are respectively the rear side which the edge part is the handle operation part 27 side with respect to the downstream side step part 165, in other words, an extension pipe ( 22) (offer side of the air path W) is shifted away in the axial direction of the (knob operation part 27).

The convex part 72 is formed between the connection convex part 171 and the outer surface of the insertion part 62, and is the axial direction of the extension pipe 22 (insertion part 62 of the downstream pipe part 55 of the extension pipe 22). It is formed along and protrudes downstream with respect to the downstream side step part 165. As shown in FIG.

The convex portion 72 is formed of a member such as a synthetic resin that does not have light transmission, that is, does not allow light to pass, and has an insertion hole 175 in the inside (center portion), and this insertion hole 175 Is a part of the light guide 57.

In addition, the position of the insertion hole 175 facing the handle operating portion 27 side, that is, the position on the end side of the convex portion 72, is closed and covered by the window member 176 having transparency.

Each positioning convex part 173 is formed between the connection convex part 171 and the outer surface of the insertion part 62, and has the extension pipe 22 (insertion part 62 of the downstream pipe part 55). It is formed along the axial direction.

Each connection pin 74 is formed in a straight line shape, and each regulation of the handle operation part 27 is regulated in the state which inserted the insertion part 62 of the downstream pipe part 55 into the upstream end part of the handle operation part 27. By inserting into the connection hole part 178 (FIG. 14) respectively formed in the part 47, it is electrically connected with the handle operation part 27 side.

Each connection pin 74 is electrically connected to the wire which is not shown in figure along the inside of each pipe part 55 and 56. As shown in FIG.

In addition, when the downstream side seal ring 71 inserts and inserts the insertion part 62 in the upstream end part of the handle operation part 27, the outer side is press-contacted with the inner surface of the handle operation part 27, and the downstream side pipe part 55 and a handle It is a sealing member for hermetically connecting the operation unit 27, and is disposed at a position on the downstream side of the air passage W than the locking recess 166 on the outer surface of the insertion unit 62.

Moreover, the downstream holding part 63 is a part into which the downstream end side of the upstream pipe part 56 is inserted, and is shorter in axial dimension than the downstream pipe main body 61, and is formed in large diameter. Therefore, a step shape is formed from the downstream tube body 61 to the downstream holder 63 from the downstream end side of the upstream end side of the downstream tube body 61 and the downstream end side of the downstream holder 63. The upstream side step portion 181 extending in diameter is formed.

In addition, the inner surface of the downstream holding portion 63 is slidably contacted with the outer surface of the downstream end side of the upstream pipe portion 56 so as to be in sliding contact, so as to hermetically connect the downstream pipe portion 55 and the upstream pipe portion 56. An upstream seal ring is provided.

Moreover, in the downstream holding part 63, in the position which advanced the upstream pipe part 56 with respect to the downstream pipe part 55 on the upper side facing the user side in the use state (cleaning state) of the vacuum cleaner 11, A holding clamp 83 is provided as a holding means that can be held and can release this hold.

The upstream pipe | tube main body 85 downstreams the upstream pipe | tube part 56 by catching by the holding clamp 83 on the upper outer surface which faces the user side at the time of use state (cleaning state) of the vacuum cleaner 11. A plurality of locking projections 188 are held in the axial direction to hold the side pipe portion 55 in a retracted position.

The upstream holding part 86 is a part into which the downstream end side of the bottom brush 23 is inserted, is shorter in axial dimension than the upstream tubular body 85, and is formed in large diameter. Moreover, the upstream side holding part 86 has the downstream end and the bottom brush of the extension pipe 22 (downstream pipe part 55) on the upper side facing the user side in the use state (cleaning state) of the vacuum cleaner 11. A clamp portion 189 is provided as a bottom brush holding means as the suction inlet holding means which can hold the connection of 23 and can release this holding.

In addition, the light guide 57 is formed in elongate shape, for example by synthetic resin which has light transmittance, and the one end side (the end side of the downstream side of the air passage W) is downstream of the extension pipe 22 ( It is inserted into the insertion hole 175 of the convex part 72 of 55, and faces the window member 176. As shown in FIG.

That is, the light guide 57 has one end side located on the downstream end side of the extension tube 22, and is disposed inward of the downstream end end (tip) of the convex portion 72. In addition, the display portion 88 is integrally formed on the other end side of the light guide 57 (end side on the upstream side of the air passage W).

The display portion 88 is formed in a circular arc shape in the circumferential direction, and is fitted to the position of the upstream side step portion 181 along the circumference of the upstream tube portion 56 of the extension tube 22. That is, this display part 88 is located in the upstream end side of the downstream pipe part 55 of the extension pipe 22. As shown in FIG.

And this light guide 57 is coat | covered so that the part except the display part 88 which is the downstream end part and the upstream end part inserted into the insertion hole 175 may not diffuse light outside.

This coating may be, for example, a structure in which the light guide 57 is covered by a separate cover body, or the light guide 57 itself may be configured in a color having a high reflectance or the like.

Next, the operation of the third embodiment will be described.

At the time of cleaning, the air passage forming body 13 is connected to the main body suction port 19 of the cleaner main body 12 provided with the dust collecting part.

Specifically, the connecting pipe portion 26 of the hose body 21 is inserted into the main body suction port 19 to hold the connection by the main body clamp 31. At this time, the wiring of the cleaner main body 12 side and the hose body 21 is electrically connected.

Next, at the upstream end of the handle operating part 27 of the hose body 21 shown in FIG. 14, the insertion end 62 of the downstream end side of the extension pipe 22 shown in FIG. 15, here, the downstream pipe part 55. Insert). At this time, the user connects the connecting pins 74 and 74 of the extension pipe 22, the positioning convex portions 173 and 173 and the convex portion 72 to the connection hole portions 178 and 178 of the handle operating portion 27, respectively. The insertion portion 62 of the extension tube 22 is inserted into the upstream end of the handle operating portion 27 while being aligned with the positioning recesses 48 and 48 and the recess 46, respectively.

By this insertion operation, when the insertion part 62 contacts the locking part 50b of the connection clamp 50, and inserts the insertion part 62 of the extension pipe 22 into the handle operation part 27, an insertion part 62 pushes up the catching part 50b, against the press of the clamp press means.

Then, when the locking portion 50b is brought into the position of the locking recess 166, the connecting clamp 50 is rotated back by the pressing of the clamp pressing means, and the locking portion 50b is locked by the locking recess 166. The extension pipe 22 is held and fixed with respect to the knob operating portion 27 (Fig. 13).

In this state, the connecting convex portion 171 of the extension tube 22 is in contact with the restricting portions 47 and 47 of the handle operation portion 27, and the downstream stepped portion 165 of the extension tube 22 is the handle operation portion ( By contacting the end surface portion 44 of 27, the axial position with respect to the handle operating portion 27 of the extension pipe 22 is defined.

Then, the connecting pins 74 and 74, the positioning convex portions 173 and 173 and the convex portion 72, the connecting hole portions 178 and 178, the positioning concave portions 48 and 48 and the concave portion 46 ), The position in the circumferential direction with respect to the handle operating portion 27 of the extension pipe 22 is defined.

Moreover, the electric wire of the extension pipe 22 is electrically connected with the wiring of the hose body 21 through the connection pins 74 and 74. FIG. Moreover, the window member 176 of the convex part 72 becomes a position which opposes the light emitting window part 53 of the wall part 52 of the deepest part of the recessed part 46. As shown in FIG. That is, the upstream end side of the light guide 57 opposes the light emitter 49 at a position inside the recess 46.

In addition, the connection pipe 91 of the bottom brush 23 is inserted into the upstream end of the extension pipe 22, here, the upstream end of the upstream side holding part 86 of the upstream pipe part 56, and the clamp part 189. Maintain a connection by At this time, the electrically conductive pin of the bottom brush 23 side and the electric wire of the extension pipe 22 side are electrically connected.

Then, when the user connects the power cord to a commercial AC power source and operates the setting button 42 of the gripping portion 41, the main body control unit M (FIG. 5) of the electric blower 18 is operated by the user. Control the input. With the drive of this electric blower 18, the dust quantity detection means 33 also drives. That is, light is irradiated from the light emitting element 35a of the light emitting part 35 to the light receiving element 36a of the light receiving part 36, and the main body control part based on the signal from the light receiving element 36a corresponding to the light receiving intensity of the light. (M) is in a state of monitoring the amount of dust passing through the air passage (W).

The negative pressure generated by the driving of the electric blower 18 acts on the suction port of the bottom brush 23 through the dust collecting part, the main body suction port 19, the hose body 21, and the extension pipe 22, thereby causing the dust on the bottom surface to air. It can be inhaled in the air passage (W) with.

Moreover, when a user operates the setting button 42 according to the kind of floor surface, etc., the main-body control part M drives the electric motor 93 suitably, and scrapes off dust from a floor surface with a rotary cleaning body, and cleans it.

Here, when there are dusts of a predetermined amount or more on the bottom surface, that is, when dusts of a predetermined amount or more are included in the intake air passing through the air path W, the dusts are discharged from the light emitting element 35a of the light emitting part 35. By blocking the emitted light, the light receiving intensity by the light receiving element 36a is relatively lowered.

By detecting the change in the signal corresponding to the decrease in the light receiving intensity of the light receiving element 36a, the main body control unit M determines that dust (more than a predetermined amount) is passing through the inside of the air path W, and thus the light emitter 49 Emits light.

Light emitted from the light emitting body 49 exits from the light emitting window portion 53, and enters one end (downstream end) of the light guide 57 in the insertion hole 175 through the window member 176. At this time, since the light emitted from the light emitter 49 enters the window member 176 in the recess 46, the connection end of the handle operating portion 27 and the extension tube 22, that is, the end face portion of the handle operating portion 27. Light is not leaked to the outside at the opposing position of the 44 and the downstream step part 165 of the extension pipe 22.

The light incident on the light guide 57 is led to the other end (upstream end) of the light guide 57, and the entire display portion 88 is turned on. Therefore, the user can be notified that there is more than a predetermined amount of dust on the bottom surface.

In addition, when there is no dust more than a predetermined amount on the bottom surface, since the dust does not block the light emitted from the light emitting element 35a of the light emitting portion 35, the light receiving intensity by the light receiving element 36a is relatively increased. Then, the change in the signal corresponding to the increase in the light receiving intensity of the light receiving element 36a is detected, and the light emission of the light emitting body 49 is stopped (lighted off). Therefore, the display unit 88 is turned off, so that the user can be notified that cleaning of the bottom surface has been achieved.

As described above, according to the third embodiment, the light emitting body 49 is disposed inside the wall portion 52 (light emitting window portion 53), which is an end of the concave portion 46, and the light guide body 57 By arranging one end side inside the end portion (window member 176) of the convex portion 72, the light emitting body 49 is protected by the wall portion 52 and the light emitting window portion 53, and the The one end side is protected by the window member 176, so that the occurrence of scratches on one end side of the light emitting body 49 and the light guide 57 can be prevented.

Next, 4th Embodiment is described with reference to FIG. In addition, about the structure and effect | action similar to the said 3rd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the third embodiment, the fourth embodiment is a shutter 196 as an opening / closing member at the opening side of the concave portion 46, that is, the position (end surface portion 44) on the upstream end side of the handle operating portion 27. ) Is installed.

The shutter 196 is formed in a plate shape, and the pivot shaft 196a formed at the upper end portion is pivotally supported by the edge portion of the upstream end of the end surface portion 44 of the handle operating portion 27. Moreover, the torsion spring 198 as a pressing means which presses this shutter 196 is provided in the rotation shaft 196a of this shutter 196.

The torsion spring 198 presses the shutter 196 in the blocking direction of the recess 46, that is, in the direction opposite to the light emitting body 49 (left side in the drawing).

Then, in the state where the extension tube 22 is removed from the handle operating portion 27, the shutter 196 rotates by the pressure of the torsion spring 198, and the concave portion 46 with respect to the upstream end side of the handle operating portion 27. It becomes the blocking position which occludes (shown by imaginary line in drawing).

The closed position is, for example, a position where the shutter 196 is substantially flat with the end surface portion 44 of the handle operating portion 27, that is, a position along a direction substantially perpendicular to the axial direction of the handle operating portion 27. The output of the light-emitting body 49 in the axial direction (upstream direction of the air passage W) of the light-emitting handle operation unit 27 is blocked.

In addition, when the insertion part 62 of the downstream pipe part 55 of the extension pipe 22 is inserted in the state which installed the extension pipe 22 with respect to the handle operation part 27, ie, the upstream end part of the handle operation part 27, 196 is rotated to the rear, that is, inside (inside) of the recess 46 by contact with the convex portion 72 inserted into the recess 46, and held in the open position to open the recess 46. (Indicated by the solid line in the drawing).

This open position is a position along the axial direction of the handle operating part 27 in the inside of the handle operating part 27, for example, and the shutter 196 of the handle operating part 27 of the light emission of the light-emitting body 49 is shown. The emission in the axial direction (upstream direction of the air passage W) is not blocked.

Thus, the shutter 196 which is arrange | positioned at the recessed part 46, and is movable (rotated) between the closed position which occludes the recessed part 46, and the open position which opens the recessed part 46 is made. )

Then, the shutter 196 is moved to the open position by the insertion of the convex portion 72 into the concave portion 46, so that the light emitter 49 is provided in the state where the extension tube 22 is provided on the handle operating portion 27. ) And one end side of the light guide 57 face each other, and light of the light emitter 49 can be reliably incident on one end side (downstream end side) of the light guide 57.

In addition, in the state which removed the extension pipe 22 with respect to the handle operation part 27, when the inlet body, such as a crane nozzle, is connected to the upstream end of the handle operation part 27 instead of the extension pipe 22, the shutter 196 ) Does not cause scratches on the light-emitting body 49.

Further, even when the bottom brush 23 and the extension tube 22 are removed and the dust is directly sucked from the handle operating portion 27, it is possible to reliably protect the dust from adhering to the light emitter 49 or the like.

Moreover, by providing the torsion spring 198 which presses the shutter 196 in the closed position, for example, when the bottom brush 23 and the extension pipe 22 are removed in the state which removed from the handle operation part 27, a handle operation part, etc. Regardless of the angle of (27), since the shutter 196 is kept in the closed position, the light emitter 49 can be more reliably protected by the shutter 196.

In addition, in each said embodiment, the light-emitting body 49 is arrange | positioned below the air path W in the handle operation part 27, ie, the side which faces the floor surface side in the use state (cleaning state) of the vacuum cleaner 11, and the like. You may also In this case, what is necessary is just to comprise so that the shape of the display part 88 of the light guide 57 may be displayed on a user side in the use state (cleaning state) of the vacuum cleaner 11.

Next, 5th Embodiment is described with reference to FIG. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In this fifth embodiment, in the fourth embodiment, the closed position of the shutter 196 is a predetermined acute angle, for example, with respect to the axial direction of the handle operating unit 27 inside the handle operating unit 27. For example, it inclines at 45 degrees (it shows with the solid line in drawing).

That is, the shutter 196 is blocking the light emitted from the light emitting body 49 from the recess 46 in the axial direction of the handle operating section 27 in the state of being located at the closed position.

In addition, the light of the light emitter 49 is reflected on the light emitter 49 side (right side in the drawing) of the shutter 196, that is, the inner main surface 196b, that is, the main surface 196b in which dust is hard to adhere or absorb. Reflective processing is performed. Specifically, the main surface 196b of the shutter 196 is processed into a mirror shape, for example, or a reflector is provided.

And the opening part 100 of the light transmission part is formed in the position of the upstream end part in the upper part of the handle operation part 27 facing the user side in the use state (cleaning state) of the vacuum cleaner 11.

This opening part 100 is formed in the position which light from the light-emitting body 49 reflected by the main surface 196b of the shutter 196 (shown in the solid line position in a figure) of the closed position is emitted. In addition, this opening part 100 is closed by the shutter 196 (shown as an imaginary line in the figure) which became the open position in the state which connected the extension pipe 22 to the upstream end part of the handle operation part 27, and a light-emitting body The light at 49 is in a position where the light is not emitted to the outside.

Therefore, for example, when connecting the inlet body, such as a nozzle nozzle, to the upstream end of the handle operating part 27 instead of the extension pipe 22, or cleaning it, or removing the bottom brush 23 and the extension pipe 22, the handle operation part ( When the user mainly looks at the upstream end side of the handle operating portion 27, such as when cleaning by the 27, the light of the light emitting body 49 is reflected by the main surface 196b of the shutter 196 at the closed position, thereby opening the opening ( By exiting 100, even if the extension pipe 22 is removed from the handle operating part 27 at least, the amount of dust passing through the air path W is a predetermined amount or more (with a lot of dust). Can be notified to the user.

According to each embodiment described above, the light-emitting body 49 is arrange | positioned at the position axially shifted with respect to the connection end part of this handle operation part 27 and the extension pipe 22 by the handle operation part 27, and the extension pipe 22 is provided. Dedicated wiring for inducing light by directing one end side (downstream end side) of the light guide body 57 disposed along the light guide 49 to the display unit 88 on the other end side (upstream end side) facing the light emitting body 49. In the extension pipe 22 is not necessary.

Therefore, the structure can be simplified and the light emitted from the light emitting body 49 can be prevented from leaking to the outside from the connection end of the handle operating portion 27 and the extension tube 22.

In addition, in the said 5th Embodiment, as long as the opening part 100 is a structure which can permeate | transmit the light of the light-emitting body 49, you may block | close by the blocking member etc. which have translucency, for example.

Moreover, in the said 4th Embodiment and 5th Embodiment, if it is set as the structure which rotates by self weight, without providing the torsion spring 198, it can be simplified more.

In addition, in each said embodiment, the extension pipe 22 may not be an extension pipe. In this case, since the display portion 88 of the light guide 57 is approached by the bottom brush 23, in the user who mainly watches the bottom brush 23 when cleaning using the bottom brush 23. The visibility of the display unit 88 is further improved.

And the positional relationship of the handle operation part 27 and the insertion part 62 of the extension pipe 22 may be reversed, for example. That is, the light-emitting body 49 is arrange | positioned in the convex part of the insertion part formed in the handle operation part 27 side, and the light guide body in the recessed part 46 formed in the downstream end side (base end side) which is one end side of the extension pipe 22. One end side of the 57 may be disposed.

11: Electric cleaner
12: cleaner body
13: Weatherform
18: electric blower
21: hose body
22: extension tube
27:
33: state detecting means (dust amount detecting means, cleaner state detecting means)
44: end face of the control panel
46: recess
49: illuminant
55: downstream pipe joint
56: upstream tube
57, 95: light guide
64: cover body
73: holding means (holding clamp)
74: convex
88, 98: display unit
W: wind
100: light transmitting part (opening part)
165: downstream stepped portion
196: opening and closing member (shutter)
198: compression means (torsion spring)

Claims (8)

As an electric cleaner,
The vacuum cleaner body which accommodated an electric blower,
A air passage forming body for forming an air passage communicating with the suction side of the electric blower therein;
A state detecting means for detecting a state of the cleaner;
The air passage forming body,
A hose body having one end side communicating with the suction side of the electric blower and having a handle operating portion at the other end side;
An extension tube having one end side connected to the handle operating portion of the hose body;
A light emitting body disposed in the handle operating portion and emitting light when the state detecting means detects a state of the cleaner;
And a light guide member disposed along a length direction of the extension tube,
In the state where the light guide is connected with one end side of the extension tube to the handle operating portion, the one end side faces the light emitter and guides light emission from the light emitter to the other end side.
The handle operation portion includes an operation portion end surface portion constituting a connection end portion with the extension pipe,
The extension tube has an extension tube end surface portion that forms a connection end portion with the handle operation portion so as to face the operation portion end surface portion by connection with the handle operation portion,
The air passage forming body,
A concave portion formed in any one of the operation portion end surface portion and the extension pipe end surface portion;
It is provided in the other of the said operation part end surface part and the said extension pipe end surface part, and is provided with the convex part fitted with the said recessed part by connection of the said handle operation part and the said extension pipe,
One end side of the light guide and the light emitting body are located inward from an end of the concave portion and the convex portion,
The recessed portion is formed in the operation portion end surface portion of the handle operation portion,
The light emitting body is disposed in the concave portion,
The said air path forming body is equipped with the opening-closing member which can open and close the said recessed part, and moves to the position which opens the said recessed part by insertion of the said convex part into the said recessed part. delete delete delete delete delete The method of claim 1,
The opening and closing member can open and close the recessed portion by rotation,
The said air path forming body is provided with the pushing means which presses the said opening-closing member to the side which obstruct | occludes the said recessed part. The vacuum cleaner characterized by the above-mentioned. The method of claim 7, wherein
The handle operating portion has a light transmitting portion through which light can pass,
And the opening / closing member is disposed at a position to close the concave portion in a state where the extension tube is removed from the handle operating portion, and the light from the light emitting body is reflected to the light transmitting portion.

Images