JP6322077B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to an electric vacuum cleaner in which an electric blower and a dust collection pack that captures dust sucked by the electric blower are housed in a main body case, and a suction hose that guides the dust to the dust collection pack is connected to the main body case. .

  In Patent Document 1, in order to solve the problem inherent in the vacuum cleaner in which the main body case and the expansion / contraction extension pipe are connected via the suction hose, that is, the suction hose becomes long and the air path resistance increases. A long air pipe that can be slidably attached to the suction air passage, and the distance between the suction air passage can be changed by sliding. A vacuum cleaner with a handle is disclosed.

  According to the electric vacuum cleaner, by providing the handle portion slidably in the suction air passage, the length of the suction hose connecting the suction air passage and the main body case can be shortened. Improvement and reduction of wind path resistance can be achieved.

JP 2003-219995 A

  However, the vacuum cleaner disclosed in Patent Document 1 is configured such that an annular moving portion, that is, a sliding portion configured to be slightly larger in diameter than the outer diameter of the suction pipe that is the suction air passage is slidable in the suction air passage. An elongated stick-like stick part that is fitted externally and protrudes in the axial direction from the end of the sliding part is configured to function as a handle part. Since the posture is maintained, there is a problem that rattling occurs in the annular sliding portion with respect to the suction pipe.

  In particular, when the suction head connected to the tip of the suction air passage is gripped and moved with respect to the floor surface, the sliding portion is slid with respect to the suction pipe to extend the handle portion. In addition, there is a problem that the backlash at the end of the handle portion with respect to the suction head is increased and the operability may be impaired.

  In view of the above-described conventional problems, the object of the present invention is to eliminate the rattling of the sliding portion with respect to the suction pipe with a simple configuration while reducing the air path resistance by shortening the length of the suction pipe hose. The point is to provide a vacuum cleaner that can.

In order to achieve the above-mentioned object, the first characteristic configuration of the vacuum cleaner according to the present invention is the electric blower and dust sucked by the electric blower as described in claim 1 of the claims. A vacuum cleaner in which a dust collection pack to be captured is housed in a main body case, and a suction hose that guides dust to the dust collection pack is connected to the main body case, and a suction head is connected to the front end side and a rear end A suction pipe to which the suction hose is connected to the side, a handle part that is slidably attached along the longitudinal direction of the suction pipe, and that can adjust the distance between the suction head and the suction pipe, and the suction pipe a sliding guide mechanism for slidably guiding said handle portion, and a cylindrical hose connector that holds the state of connecting the suction hose to the suction pipe rear end, said handle portion An annular portion is formed, and the annular portion is slidably surrounded with respect to the suction pipe, and the slide guide mechanism is provided along one of the handle portion and the hose connector along the axis of the suction pipe. It is in the point comprised by the engagement convex part formed in the direction, and the engagement recessed part engaged with the said engagement convex part formed in the other .

When the handle portion expands or contracts so as to extend or contract along the longitudinal direction of the suction pipe, the annular portion formed in the handle portion and the suction pipe surrounded by the annular portion slide, and the handle portion or A handle portion with respect to the suction pipe is formed by a sliding guide mechanism formed by an engagement convex portion formed in a direction along the axis of the suction pipe in one of the hose connectors and an engagement concave portion formed in the other. Will be guided. Since the engaging convex portion is formed in a direction along the axis of the suction pipe, the attitude of the handle portion with respect to the suction pipe is regulated in the axial direction in an engaged state with the engaging concave portion, and intersects the axial direction. No change in direction, i.e. rattling. Therefore, the rattling during sliding is eliminated, and even when the suction head connected to the tip of the suction pipe is moved with respect to the floor surface by gripping the handle portion, the end of the handle portion with respect to the suction head It is possible to ensure stable operability without any rattling.

Handle the second feature structure, as described in the claim 2, in addition to the first feature configuration described above, the handle portion, said annular portion which surrounds the suction pipe to the tip side is formed and the base, in that it is configured with a handle cover covering the handle base.

Suction pipe is surrounded by an annular portion formed at the tip of Ha Ndorubesu, annulus allowing stable expansion differential along the axis, even when the slide relative to the suction pipe in this state.

In addition to the first or second characteristic configuration described above, the third characteristic configuration is the engagement convex portion and the engagement concave portion in the engaged state, as described in claim 3. A detachment prevention unit is provided to prevent detachment in the direction intersecting the axis.

  Since the separation prevention part prevents separation in the direction intersecting the suction pipe axis, it engages with the engagement convex part even if some external force is applied when the annular part slides against the suction pipe. The engagement state of the recess is not canceled, and stable expansion / contraction differential along the axis becomes possible.

In the fourth feature configuration, as described in claim 4, in addition to any of the first to third feature configurations described above, the annular portion has a rear end along the longitudinal direction of the suction pipe. It is in the point which has the convex piece extended and formed in the side .

When the handle portion is extended to the maximum extension position, finger clogging between the annular portion and the hose connector can be prevented by the convex piece.

In the fifth feature configuration, in addition to any one of the first to fourth feature configurations described above, any one of the engagement convex portion and the engagement concave portion is the It formed to extend longitudinally of the handle portion along the axis of the suction pipe, in that the engagement projection or engagement recesses on the opposite surface to the handle portion of the front Symbol hose connector is formed is there.

If the engagement convex portion or the engagement concave portion is formed to extend in the longitudinal direction of the handle portion, even when the handle portion is slid in the extension direction with respect to the suction pipe, When the engagement state is maintained, and the engagement convex portion or the engagement concave portion is formed in the hose connector, the annular portion and the engagement portion are always connected regardless of the expansion / contraction state of the handle portion with respect to the suction pipe. The distance between them becomes the maximum distance, and when the posture is restricted at two points of the annular portion and the engaging portion, the highest posture regulating effect can be obtained.

  As described above, according to the present invention, the length of the suction pipe hose can be shortened to reduce the air passage resistance, but the rattling of the sliding portion with respect to the suction pipe can be eliminated with a simple configuration. It became possible to provide a vacuum cleaner.

(A) is a perspective view of the vacuum cleaner set in the storage state, (b) is an explanatory view of the usage state of the vacuum cleaner (A) is a plan view of the vacuum cleaner, (b) is a bottom view of the vacuum cleaner (A) is a side view of the vacuum cleaner, (b) is a front view of the vacuum cleaner, and (c) is a rear view of the vacuum cleaner. Exploded view of the main body case of the vacuum cleaner (A) is an explanatory view in plan view of the suction pipe and the handle portion in the most contracted position, (b) is an explanatory view in plan view of the suction pipe and the handle portion in the intermediate extension position, and (c) is in the maximum extension position. Explanatory drawing of a plan view of a certain suction pipe and handle Exploded view of suction pipe and handle (A) Cross-sectional explanatory drawing explaining the suction pipe and handle part in the most contracted position, (b) Cross-sectional explanatory drawing of the suction pipe and handle part in the intermediate extension position, (c) Suction in the maximum extension position Cross-sectional illustration of pipe and handle (A), (b), (c) is the principal part expansion explanatory drawing of FIG. 7 (a), (c), respectively. Side view of the vacuum cleaner showing the hook part that supports the suction pipe in the stored state (A) is explanatory drawing of a hook part, (b) is principal part explanatory drawing which shows the state supported by the hook part, (c) is a top view of the vacuum cleaner of a storage state

Below, the vacuum cleaner by this invention is demonstrated based on drawing.
FIG. 1 (a) shows the vacuum cleaner 1 set in the storage position, and FIG. 1 (b) shows the vacuum cleaner 1 in use. The vacuum cleaner 1 includes a vacuum cleaner main body 2 in which an electric blower, an electric cord reel, a dust collection pack and the like are accommodated in a resin main body case 10, a suction hose 20 detachably connected to the main body case 10, and a suction The suction pipe 30 is connected to the tip 20 a of the hose 20, the suction head 50 is connected to the tip 30 a of the suction pipe 30, and the handle 40 is slidably attached to the suction pipe 30. .

  Similarly, the suction hose 20, the suction pipe 30, the handle portion 40, and the suction head 50 are mainly made of a resin material. Reference numeral 35 is an attachment brush removably attached to the suction pipe 30.

  The suction port 50a of the suction head 50 is disposed so as to face the floor surface, the handle portion 40 (40b) is gripped and the suction head 50 is moved along the floor surface. The upper dust and the like are sucked into the cleaner body 2 together with air.

  The handle portion 40 is provided with a sliding portion 40a that slides on the suction pipe 30, and is configured to be able to be expanded and contracted to a distance L between the suction head 50 and the handle portion 40 that is easy for the user to use. At this time, the relative positional relationship in the height H direction between the rear end 30b side of the suction pipe 30 and the main body case 10 does not vary greatly regardless of the distance between the suction head 50 and the handle portion 40. Has been.

2 (a), 2 (b) and FIGS. 3 (a), 3 (b), 3 (c) show the appearance of the main body case 10. FIG.
The main body case 10 includes a lower case 10A and an upper case 10B. A connection port 11 of the suction hose 20 is provided on the front side of the lower case 10A, and a handle 12 curved so as to bypass the upper side of the connection port 11 is provided. Provided (see FIGS. 3A and 3B).

  Further, the bottom surface of the main body case 10 is configured so that the vacuum cleaner main body 2 can freely travel on the floor surface by the biasing force transmitted through the suction hose 20 when the suction head 50 is moved along the floor surface. A small-diameter swivel wheel 13 is freely mounted on the front side, and a large-diameter driven rear wheel 14 is mounted on the left and right side rear surfaces so as to be freely rotatable (see FIG. 2B).

  By operating the electric blower, outside air is sucked into the main body case 10 through the suction head 50, the suction pipe 30, the suction hose 20, and the connection port 11, and the dust sucked together with the outside air is captured by the dust collection pack, Outside air that has passed through the dust collection pack is exhausted to the outside through a plurality of small-diameter exhaust ports 15 arranged on the back surface through a filter (see FIG. 3C).

  The back surface of the main body case 10 is formed substantially flat so that the main body case 10 can be installed on the floor surface in a vertical posture, and a suction pipe holding portion 16 that holds the suction pipe 30 in a vertical posture is formed on the bottom surface.

  In the upper case 10B, a lead portion 10g of the electric cord C having a plug P at the tip is disposed. Accordingly, when the main body case 10 is installed on the floor surface in a vertical posture, the installation posture is set even when the electrical cord C is pulled out from the drawer portion 10g as compared with the case where the drawer portion is disposed on the back surface of the lower case 10A. Does not become unstable (see FIG. 2A).

  As shown in FIG. 4, the main body case 10 is composed of a lower case 10A and an upper case 10B as described above, and a lid 10C for exchanging the dust collecting pack is attached to the upper case 10B so as to be openable and closable. ing.

  A connection port 11 is formed in the lower case 10A, and a dust collection pack housing portion 10D in which the dust collection pack is disposed so as to face the connection port 11, and a back surface side of the dust collection pack housing portion 10D is unevenly distributed on one side surface side. Thus, the electric blower accommodating portion 10E that accommodates the electric blower and the cord reel accommodating portion 10F that winds and accommodates the electric cord at the side of the electric blower accommodating portion 10E are partitioned.

  In order to ensure the strength and airtightness of the main body case 10, the dust collection pack housing portion 10D is further provided with an inner case 10a, and is configured to be in close contact with the upper case 10B and the lid body 10C via the packing 10d. . The lower case 10A and the inner case 10a are integrally formed as one component rather than as separate members.

  The outside air sucked by the electric blower and passed through the dust collection pack passes through the vent hole 10b formed on the back surface of the inner case 10a and is exhausted from the plurality of exhaust ports 15 formed on the back surface. A filter member such as a non-woven fabric that captures minute dust that has passed without being captured by the dust collection pack is disposed in the vent hole 10b.

  A decorative panel 10c is attached to the side surface of the lower case 10A, parts 12a, 12b, and 12c constituting the handle 12 are attached to the front surface, and an attachment 11a that connects the suction hose 20 to the connection port 11 is attached. . Further, an operation button 10e for the cord reel and an operation button 10f for opening the lid 10C are attached to the upper case 10B.

  As described with reference to FIGS. 1A and 1B, the tip 20a of the suction hose 20 is connected to the rear end 30b of the suction pipe 30 to which the suction head 50 is connected. Even if the distance L between the handle portion 40 and the handle portion 40 is variably adjusted, the suction hose 20 does not cause the main body case 10 to be largely drawn around by the suction hose 20 when the suction head 50 is moved on the floor. Thus, the air path resistance is reduced and the suction efficiency is increased accordingly.

  The handle portion 40 includes a long sliding portion 40a along the axial center of the suction pipe 30 and a gripping portion 40b formed continuously with the sliding portion 40a, in the vicinity of the gripping portion 40b or the gripping portion 40b. An operation unit 60 is arranged. In addition, a locking portion 41 that locks a finger of a hand gripped by the user is formed in the gripping portion 40b, and the operation portion 60 is disposed at a position where the button can be operated while the finger is locked to the locking portion 41. ing.

  Grip in a bent posture so that the sliding portion 40a does not come into contact with the suction hose 20 connected to the suction pipe 30 at the most contracted position (see FIG. 1A) where the sliding portion 40a has slid to the tip side of the suction pipe 30 The lower surface side of the portion 40b is bent toward the suction pipe 30 side. Specifically, the grip portion 40b is curved in a direction along the floor surface with respect to the linear sliding portion 40a, and the grip portion 40b is gripped in a natural posture such as shaking hands with a person. The suction head 50 can be moved along the floor surface.

  Accordingly, even when the sliding portion 40a is contracted to the most contracted position, the lower surface of the sliding portion 40a does not come into contact with the suction hose 20, and the suction hose 20 is improperly stressed to cause early deformation of the shape. There will be no deterioration. In such a state, the shape of the gripping portion 40b does not have to be a curved rod-like body, but may be a circular or square annular body in a posture perpendicular or parallel to the floor surface. If the grip portion 40b is formed of such an annular body, the grip portion 40b can be easily gripped, and even if the gripped finger is released, any of the fingers are locked to the annular body. Does not leave the hand immediately, and it is not necessary to always hold it with a strong force.

  If the gripping portion 40b is continuous along the longitudinal direction of the sliding portion 40a, the gripping portion 40b having an angle with respect to the floor surface must be gripped. If at least the lower surface side of the gripping portion 40b is bent toward the suction pipe, for example, the gripping portion 40b can be configured in a substantially horizontal posture with respect to the floor surface and can be easily gripped.

  Usually, the user of the vacuum cleaner 1 holds the grip portion 40b continuous with the long sliding portion 40a with one hand and moves the suction head 50 on the floor, for example, stops the vacuum cleaner 1 or When adjusting the suction force or the like, the operation button 61 provided on the operation unit 60 is pressed and the lighting state of the display lamp 62 is visually confirmed. The operation unit is located near the grip unit 40b or the grip unit 40b. 60 is arranged, the operation button 61 can be easily operated with the finger of the hand holding the holding part 40b, and even if the operation button 61 is operated with the other finger, the posture is greatly changed. It becomes possible to operate very easily and quickly without performing a special operation.

  Further, by locking the finger to the locking portion 41 formed on the gripping portion 40b, the suction head 50 can be easily moved to the floor surface in a state in which some fingertips are allowed to play without gripping the gripping portion 40b with a strong force. It is possible to move and operate the operation unit 60 with a fingertip that has been played. For example, when the gripping part 40b is lightly gripped by placing an index finger on the locking part 41, the suction head 50 can be easily operated without gripping with a large force, and the operation part 60 can be operated with the thumb that is lifted in that state. .

  The operation button 61 includes a start / stop button for starting or stopping the electric blower, a strength / weak switching button for adjusting the strength of the suction force, and a brush start / stop for starting or stopping the power brush incorporated in the suction head 50. It consists of three buttons. Further, the display lamp 62 is constituted by an LED, which is turned off when the electric blower is stopped, is turned on when the electric blower is started, and blinks when the dust collection pack is replaced. The operation state of the operation button 61 is detected by the control board accommodated in the cleaner body 2, and the display lamp 62 is controlled by a control signal from the control board according to the state.

  FIG. 5A shows the suction pipe 30 and the handle portion 40 in the most contracted position, and FIG. 5B shows the suction pipe 30 and the handle portion 40 in the intermediate extension position. ) Shows the suction pipe 30 and the handle 40 in the most extended position.

  A first sliding guide mechanism 44 having an annular portion surrounding the suction pipe 30 and slidably guiding the suction pipe 30 is provided on the distal end side of the sliding portion 40a constituting the handle portion 40. Yes.

  A plurality of engaging recesses 32 are formed at predetermined intervals on the upper surface side of the suction pipe 30 (see FIG. 5C), and the first sliding guide mechanism 44 slides by engaging with the engaging recesses 32. A lock pin 42 (see FIG. 6), which is a fixture that prevents the lock pin 42, and a lock release button 43 that releases the engagement of the lock pin 42 are provided.

  After releasing the engagement of the lock pin 42 by pressing the lock release button 43, the handle portion 40 is expanded and contracted with respect to the suction pipe 30 to shift the relative positions of the lock pin 42 and the engagement recess 32, The lock release button 43 is opened and the handle portion 40 is slid in the extension direction or the contraction direction with respect to the suction pipe 30 to adjust the expansion / contraction state. When the lock pin 42 engages with the new engagement recess 32 along with the sliding, the state is maintained.

  5A and 5B show a state where the unlock button 43 is opened, and FIG. 5C shows a state where the unlock button 43 is pressed. In addition, the code | symbol 31 shown by FIG. 5 (a), (b), (c) is a lock release button for releasing the suction head 50 connected to the front-end | tip of the suction pipe 30. FIG.

  As shown in FIG. 6, the suction pipe 30 includes a cylindrical pipe body 30 </ b> A in which an electric cable connected to the cleaner body 2 is installed along the axis, and a cable fixed to the upper part of the pipe body 30 </ b> A. It is composed of a cover 30B and a pipe lower cover 30C in which an engagement recess 32 is formed. The suction pipe holder 16 (see FIG. 1A) formed on the bottom surface of the main body case 10 is engaged with the suction pipe holder 16 at the lower end of the pipe body 30A so that the suction pipe 30 is held in a vertical position. A holding piece 33 is formed.

  The handle portion 40 includes a handle base 40A in which an annular portion 44 is formed at the front end and an attachment portion for the operation portion substrate 63 is formed at the rear end, and a handle cover 40B to which the operation portion 60 is attached. The handle base 40A and the handle cover 40B are joined so as to sandwich the members of the cable base 30E, the flat cable 64, and the pipe lower cover 30C that are sequentially arranged. The operation unit board 63 is a component that constitutes the operation unit 60.

  In a state where the cable cover 30B is placed along the pipe body 30A, the handle base 40A is arranged so that the annular portion 44 is positioned around the pipe body 30A, and the upper and lower parts are connected in an annular shape so as to surround the pipe body 30A and the cable cover 30B. The handle cap 40 </ b> C is fitted into the annular portion 44. A stopper 37 is formed at one end of the cable cover 30B to prevent finger clogging by coming into contact with the end face of the handle cap 40C. Further, a curved convex piece 49 extends in the longitudinal direction of the pipe body 30A on the lower member constituting the handle cap 40C so as to prevent finger clogging between the handle cap 40C and an annular hose connector 30D described later. Is formed.

  A cable base 30E, a flat cable 64, and a pipe lower cover 30C are arranged in this order on the top of the handle base 40A, and the distal end side of the pipe lower cover 30C is fitted into a slit hole 45 formed in the handle cap 40C. The lock release button 31 for detaching the suction head 50 is fitted to the pipe body 30A.

  A slit hole 45 formed in the handle cap 40C serves as an opening through which the pipe lower cover 30C is inserted so as to define a gap between the handle base 40A and the pipe lower cover 30C. A support portion 46 is formed over the slit hole 45 along the pipe body 30A.

  The flat cable 64 is a flexible cable for electrically connecting the electrode on the operation unit 60 side, that is, the electrode on the operation unit substrate 63 and the electrode provided on the distal end side of the suction pipe 30, and the connector CN1 on one end side. Is fixed to the stepped portion 36 on the distal end side of the pipe lower cover 30C, and the connector CN2 on the other end side is connected to the operation portion substrate 63 fixed to the handle base 40A (see the arrow in FIG. 6).

  The electrode embedded in the stepped portion 36 is electrically connected to the electric cable provided in the pipe main body 30A, and the operation unit 60 and the control board of the cleaner main body 2 are connected via the electric cable. An electric motor that drives a power brush incorporated in the head 50 is connected.

  The lock pin 42 and the lock release button 43 are attached to the support portion 46 formed on the upper surface of the handle cap 40C, the handle cover 40B is covered from above, and the handle base 40A and the handle cover 40B are connected.

  The suction hose 20 is connected to the suction pipe 30 by screw-connecting a pair of upper and lower annular hose connectors 30D in a state where the rear end 30b of the pipe body 30A and the tip of the suction hose 20 are opposed to each other.

  In the state where the flat cable 64 is accommodated in the space formed between the pipe lower cover 30C and the handle base 40A, the handle base 40A has a plurality of locking claws 40d formed so as to protrude along the longitudinal direction thereof. Both are engaged with a plurality of engaging portions formed on 40B, and both are fixed so as not to be detached. The locking claws 40d are formed on both ends in the width direction of the handle base 40A, and the engaging portions that engage with the locking claws 40d are also formed on the both ends in the width direction of the handle cover 40B.

  Further, screws are screwed into the openings formed on the front end side and the rear end side of the handle cover 40B and fixed. This reduces the number of screws and reduces the number of assembly steps. The screw inserted from the insertion hole on the distal end side of the handle cover 40B is screwed into a screw hole formed in the support portion 46 of the handle cap 40C. The screw inserted from the insertion hole on the rear end side of the handle cover 40B is screwed into a screw hole formed on the wall surface on the rear end side of the handle base 40A.

  The above-described first sliding guide mechanism 44 is configured by the annular portion 44 and the handle cap 40C fitted inside the annular portion 44 so that the handle portion 40 slides along the axis of the suction pipe 30 so as to be extendable and contractible. It is configured.

  Further, an engagement concave portion 34 is formed to protrude from the upper surface of the annular hose connector 30D, and an engagement convex portion 47 (see FIG. 1B) that engages with the engagement concave portion 34 is formed in the longitudinal direction on the lower surface of the handle base 40A. Is formed so as to protrude linearly along the line. The engagement concave portion 34 and the rail-like engagement convex portion 47 eliminate the rattling when the handle portion 40 slides along the axial center of the suction pipe 30 so that smooth sliding is achieved. A second sliding guide mechanism 48 is constructed which enables it.

  The cross section of the engaging convex portion 47 is a shape with the T-shape inverted, and the cross section of the engaging concave portion 34 is formed in a C shape with the open portion facing upward, so that the handle portion 40 sucks in the engaged state. There is no possibility of detachment in the direction intersecting the axis of the pipe 30. The T-shaped horizontal bar and the C-shaped opening portion shorter than the length of the horizontal bar constitute a detachment preventing portion that prevents detachment of both from the engaged state. The engagement recess 34 is not limited to an aspect formed on the upper surface of the annular hose connector 30D, and may be formed on the suction pipe 30, specifically the cable cover 30B.

  Contrary to the above, the engaging convex portion may be formed in the annular hose connector 30D, and the engaging concave portion may be formed in the handle base 40A. Further, instead of the engaging convex portion 47, the engaging concave portion 34 may be formed in a rail shape. In addition, if the cross section of the engaging convex part and the engaging concave part is formed in a dovetail shape, the separation preventing part can be easily configured.

  That is, the handle portion 40 includes a handle base 40A in which an annular portion 44 that surrounds the suction pipe 30 is formed on the distal end side, and a handle cover 40B that covers the handle base 40A, and the second sliding guide mechanism 48 includes The engagement base is formed on one of the handle base 40A and the suction pipe 30 in the direction along the axis of the suction pipe 30 and the engagement recess is formed on the other side and engages with the engagement protrusion. It only has to be done.

  7A shows a cross section of the suction pipe 30 and the handle portion 40 in the most contracted position, and FIG. 7B shows a cross section of the suction pipe 30 and the handle portion 40 in the intermediate extension position. FIG. 7C shows a cross section of the suction pipe 30 and the handle portion 40 in the most extended position. 8 (a), (b), and (c) show a main part in which a region surrounded by a circular broken line shown in FIGS. 7 (a) and 7 (c) is enlarged. In the figure, the hashed locations are connectors CN1 and CN2 of the flat cable 64 and the operation unit board 63.

  As shown in FIGS. 7A, 7B, and 7C, the flat cable 64 bends in a Z shape in a side view in a space formed between the pipe lower cover 30C and the handle base 40A. In order to maintain the bent state, it is accommodated while being supported by a cable support portion 38 (see FIGS. 8B and 8C) provided in the pipe lower cover 30C.

  The cable support portion 38 maintains a bent state in which the flat cable 64 bends in a Z-shape at the rear end side of the suction pipe 30, and one bent portion 64 a (in this embodiment, the suction portion) as the handle portion 40 slides. While allowing the movement of the bent portion (see FIG. 6) formed on the distal end side of the pipe 30, the other bent portion 64b (the bent portion 64b formed on the rear end side of the suction pipe 30 (see FIG. 6)). To be supported.

  The cable support portion 38 is configured by a cable holding claw protruding from the back surface of the pipe lower cover 30C, and is held by the holding claw so that the bent state of the bent portion 64a formed on the distal end side of the suction pipe 30 is maintained. Is done.

  Even when the handle portion 40 extends and contracts with respect to the suction pipe 30, the change in distance is absorbed by the change in the bent state of the flexible flat cable 64. By maintaining a bent state that bends in a Z-shape so that at least a portion along the suction pipe 30 is fixed, it is possible to smoothly expand and contract even in a narrow accommodation space.

  That is, one end of the flat cable 64 is connected to the front end side of the pipe lower cover 30C, and a bent state is formed in which the flat end is bent in a Z shape on the rear end side of the pipe lower cover 30C. The bent portion 64b located on the base 40A side is configured to move.

  As shown in FIG. 8A, for example, the front end side of the suction pipe 30 is gripped with the left hand, the handle portion 40 is gripped with the right hand, and the handle portion 40 is contracted toward the most contracted position with respect to the suction pipe 30. Since the gap is formed by contacting the stopper 37 formed at one end of the cable cover 30B and the end face of the handle cap 40C when forming the gap, the step 36 of the pipe lower cover 30C and the end face of the handle cap 40C are formed. The finger of the left hand is prevented from being caught between

  As shown in FIG. 8C, for example, the vicinity of the annular hose connector 30 </ b> D is gripped with the left hand, the handle portion 40 is gripped with the right hand, and the handle portion 40 is extended toward the maximum extension position with respect to the suction pipe 30. Sometimes, the curved convex piece 49 formed to extend below the handle cap 40C contacts the annular hose connector 30D along the pipe body 30A, so that the gap between the handle cap 40C and an annular hose connector 30D described later is provided. It is configured to avoid that the left hand finger is pinched.

  FIG. 9 shows the electric vacuum cleaner 1 set in the storage position. It is the state of the rear view of Fig.1 (a). A holding piece 33 formed on the suction pipe 30 is engaged with a suction pipe holding portion 16 formed on the bottom surface of the main body case. The holding piece 33 and the suction pipe holding portion 16 constitute a holding mechanism that holds the suction pipe 30 in the main body case 2 in a vertical posture.

  As shown in FIGS. 9 and 10 (a), 10 (b), and 10 (c), fixtures 70 and 71 for fixing the suction hose 20 to the main body case 2 side in a state where the suction pipe 30 is held in the vertical position are provided. Is provided. The fixtures 70 and 71 are provided on the handle 12 provided in the main body case 2.

  When the vacuum cleaner 1 is stored, the suction pipe 30 is held in an upright position by engaging the holding piece 33 with the suction pipe holding portion 16 of the main body case 10 whose back surface is grounded to the floor surface, and from the upper end of the suction pipe 30. Since the suction hose 20 that hangs down while drawing an arc is supported by the main body case 10 via the fixtures 70, 71, the load on the suction hose 20 applied to the arc-shaped portion is reduced, and the suction hose 20 is Since it is positioned at 71, a clean and beautiful fit can be realized.

  The fixtures 70, 71 are configured by a hook portion 70 having a U-shaped cross section that supports the suction pipe 20, and a locking portion 71 that locks the hook portion 70 to the opening 12 a of the handle 12 provided in the main body case 10. Has been. The suction hose 20 is stably fixed by inserting and fixing the locking portion 71 into the opening 12a.

  In the state where the handle 12 is held and lifted, the back of the main body case 10 is in a standing posture toward the floor, and can be easily changed to the stowed posture. If the suction pipe 30 is held in the standing posture in this state, the hanging suction hose 20 Since the downward arc-shaped curved portion is located near the height of the handle, providing the fixtures 70 and 71 on such a handshake 12 eliminates the need for a large-scale device for receiving and supporting the suction hose 20. A small and simple fixture can be realized. In addition, by providing the handle 12, the fixture does not come into contact with furniture or the like even if the main body case 10 moves during cleaning.

  In addition, since the latching | locking part 71 can be detachably attached with respect to the opening part 12a, you may remove the fixing tools 70 and 71 from the handle 12 except the time of accommodation. You may comprise so that it cannot lock | pull out by rotating the latching | locking part 71 with respect to the opening 12a, after inserting the latching | locking part 71 in the opening 12a.

  For example, the cross-sectional shape of the hook portion 70 is formed in an arc shape having a central angle of 180 ° C. or more and is sandwiched so that it cannot be easily detached from the suction hose 20. 71 may be fixed, and the locking portion 71 of the fixing tool may be inserted and fixed into the opening 12a formed in the handle 12 during storage.

  Furthermore, the handle 12 and the fixture may be integrally formed, and the handle 12 itself may be formed in a shape having a function as a fixture.

  The hook portion 70 may have any shape other than the shape shown in the present embodiment as long as the hose cannot be easily detached during storage.

  Needless to say, the specific shape, size, material, and the like of each part of the vacuum cleaner 1 described in the embodiment described above can be changed as appropriate within the scope of the effects of the present invention.

1: Vacuum cleaner 2: Vacuum cleaner main body 10: Main body case 20: Suction hose 30: Suction pipe 40: Handle portion 40a: Sliding portion 40b: Holding portion 40d: Locking claw 47: Engaging convex portion 48: Sliding Guide mechanism (second sliding guide mechanism)
50: Suction head 60: Operation part 64: Flat cable 70: Fixing tool (hook part)
71: Fixture (locking part)

Claims (5)

An electric vacuum cleaner in which an electric blower and a dust collection pack that captures dust sucked by the electric blower are housed in a main body case, and a suction hose that guides the dust to the dust collection pack is connected to the main body case. ,
A suction pipe to which the suction head is connected to the front end side and the suction hose is connected to the rear end side;
A handle portion that is slidably attached along the longitudinal direction of the suction pipe, and that can adjust the distance between the suction head and the suction head,
A sliding guide mechanism for slidably guiding the handle portion with respect to the suction pipe ;
A cylindrical hose connector that holds the suction hose connected to the rear end side of the suction pipe, and
The handle portion is formed with an annular portion, and the annular portion surrounds the suction pipe so as to be slidable,
The sliding guide mechanism is engaged with either one of the handle portion or the hose connector and an engagement convex portion formed in a direction along the axis of the suction pipe, and the engagement convex portion formed on the other side. A vacuum cleaner composed of mating engagement recesses . Wherein the handle portion includes a handle base which the annular portion is formed to surround the suction pipe distally, vacuum cleaner according to claim 1, wherein is configured to include a handle cover covering the handle base. The electric vacuum cleaner according to claim 1 or 2, wherein a disengagement preventing portion that prevents disengagement in a direction intersecting with the axis of the suction pipe in the engaged state is provided in the engagement convex portion and the engagement concave portion. The vacuum cleaner according to any one of claims 1 to 3, wherein the annular portion has a protruding piece that is formed to extend toward the rear end side along the longitudinal direction of the suction pipe . Either one of the engagement convex portion and the engagement concave portion is formed to extend in the longitudinal direction of the handle portion along the axis of the suction pipe,
Before Symbol vacuum cleaner according to any one of the engagement projection or the claims 1 to 4 in which the engaging recess is formed on the opposite surface to the handle portion of the hose connector.

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