CN110352027B

CN110352027B - Electric vacuum cleaner

Info

Publication number: CN110352027B
Application number: CN201880014445.1A
Authority: CN
Inventors: 町田明子; 田中正俊; 乌泽阳; 村田博光; 清水孝吉
Original assignee: Toshiba Lifestyle Products and Services Corp
Current assignee: Toshiba Lifestyle Products and Services Corp
Priority date: 2017-06-14
Filing date: 2018-06-12
Publication date: 2021-12-07
Anticipated expiration: 2038-06-12
Also published as: JP2019000296A; KR102286412B1; WO2018230554A1; JP7174507B2; KR20190097200A; CN110352027A

Abstract

The invention provides an electric dust collector, wherein a hose body is not easy to contact with a floor when a main body part swings. An electric vacuum cleaner (11) is provided with a cleaner body (13), a hose body (31), a connecting body (32), and a support member (33). The cleaner body (13) is provided with a travel wheel (24) and a body part (25). The main body (25) is provided so as to be capable of swinging within a range extending from one side to the other side with respect to a vertical plane (P) including a rotation axis of the travel wheel (24). The connecting body (32) connects one end side of the hose body (31) to the main body (25). The support member (33) is provided at a position on the side of the body (25) in one direction of oscillation and at a position on the side of the body in the other direction of oscillation, respectively, with respect to the connecting body (32). The support member (33) defines each swinging end of the body portion (25) at a position where one end side of the hose body (31) does not contact the floor (F) by contact with the floor (F).

Description

Electric vacuum cleaner

Technical Field

An embodiment of the present invention relates to an electric vacuum cleaner including a cleaner body having a body portion that is swingable over a range between one side and the other side with respect to a vertical plane including a shaft of a traveling wheel.

Background

Conventionally, as a so-called horizontal type electric vacuum cleaner in which a cleaner body can travel on a traveling surface, traveling wheels having large diameters are provided on both side portions of the cleaner body, and a portion of the body portion in which an electric blower, a dust collecting portion, and the like are housed is formed smaller than the outer shape of the traveling wheels when viewed from the direction of the rotation axis of the traveling wheels, so that the body portion can be reversed (swung) around the traveling wheels, and operability such as direction change at a narrow position is improved. In this configuration, when the main body is inverted, it is desirable to avoid the base end side of the flexible pipe body protruding from the main body from being damaged by contact with the floor.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2016/092256

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electric vacuum cleaner in which a hose body is less likely to come into contact with a floor when the body portion swings.

Means for solving the problems

The electric dust collector of the embodiment comprises a dust collector body, a hose body, a connecting body and a supporting component. The cleaner body is provided with a traveling wheel and a body part. The main body is provided so as to be capable of swinging in a range between one side and the other side with respect to a vertical plane including a rotation shaft of the travel wheel. The connecting body connects one end side of the flexible pipe body to the body portion. The support member is provided at a position on the side of the body portion in one direction of swinging and at a position on the side of the body portion in the other direction of swinging with respect to the connecting body. These support members define the respective swing ends of the main body at positions where one end side of the flexible pipe body does not contact the floor by contact with the floor.

The invention has the following effects: according to the above configuration, the height of the flexible pipe body from the floor is secured when the main body is swung, so that the lower portion of the flexible pipe body is hard to contact with the floor, and the base end of the flexible pipe body is pressed upward by the contact of the lower portion of the flexible pipe body with the floor, so that the base end of the flexible pipe body hits the connecting body and is deformed, or the lower portion of the base end side of the flexible pipe body rubs against the floor when the vacuum cleaner main body travels, so that the flexible pipe body is hard to be damaged.

Drawings

Fig. 1 is a side view showing a state in which a cleaner body of an electric cleaner according to an embodiment is swung in one direction.

Fig. 2 is a side view showing a state in which the cleaner body of the electric vacuum cleaner is swung in another direction.

Fig. 3 is a sectional view showing the electric vacuum cleaner.

Fig. 4 is a perspective view showing a connection portion between the cleaner body and the hose body of the electric vacuum cleaner.

Fig. 5 is a perspective view showing the storage operation of the electric vacuum cleaner.

Fig. 6 is a perspective view showing the electric vacuum cleaner.

Detailed Description

Hereinafter, a configuration of an embodiment will be described with reference to the drawings.

In fig. 6, reference numeral 11 denotes an electric vacuum cleaner. The electric vacuum cleaner 11 includes a cleaner body 13. The vacuum cleaner 11 is provided with a dust collecting unit 14. The electric vacuum cleaner 11 is provided with an electric blower 15 as a suction source. The electric vacuum cleaner 11 includes a power supply unit, not shown. The electric vacuum cleaner 11 is provided with a control unit, not shown. The electric vacuum cleaner 11 further includes a setting button 20 as a setting unit. In the present embodiment, the electric vacuum cleaner 11 is a horizontal type electric vacuum cleaner including an air passage body 22 that is detachable from a cleaner body 13 that can travel on a floor surface as a surface to be cleaned.

The cleaner body 13 is provided with traveling wheels 24. The cleaner body 13 includes a body portion 25. The cleaner body 13 can travel on the floor surface by the travel wheels 24. Hereinafter, with respect to the front-rear direction and both side directions (width direction), for example, the airflow path body 22 side is referred to as the front side and the opposite side is referred to as the rear side with reference to the traveling direction of the cleaner body 13.

The traveling wheels 24 are provided on both side portions of the main body 25 so as to be rotatable, for example. That is, these travel wheels 24 have a rotation axis in the horizontal direction (including a substantially horizontal direction). These travel wheels 24 are located coaxially (including substantially coaxially) with each other. These travel wheels 24 are formed with a large diameter.

The main body 25 houses the electric blower 15. The main body 25 incorporates a power supply unit. The main body 25 incorporates a control unit. In the present embodiment, the main body 25 may further include the dust collecting unit 14. As shown in fig. 1 and 2, the body portion 25 is formed to have an outer shape smaller than that of the travel wheel 24 at least in part. For example, the main body 25 is formed to have an outer shape smaller than the outer shape of the travel wheel 24 at least on the rear side (the side opposite to the air path body 22) of a virtual vertical plane (a plane extending in the vertical direction and the width direction) P including the rotation axis of the travel wheel 24. In the present embodiment, the outer shape of the main body 25 is continuously formed smaller than the outer shape of the travel wheel 24 from the upper portion to the lower portion through the rear portion. Therefore, the main body 25 can swing (rotate) about the rotation axis of the travel wheel 24 in a range extending from one side to the other side with respect to the vertical plane P. In other words, the main body 25 can continuously swing (rotate) between a position (fig. 1) where the front side (the wind path member 22 side) is on one side with respect to the vertical plane P and a position (fig. 2) where the front side (the wind path member 22) side is on the other side with respect to the vertical plane P. Therefore, the main body 25 can be vertically reversed between a position swung to one side with respect to the vertical plane P and a position swung to the other side with respect to the vertical plane P. The main body 25 includes a main body 27 as a first main body. The main body 25 may also include an extension protrusion 28 as a second main body. In the following, for the sake of clarity of the description, the position where the main body 25 is in the state shown in fig. 1 is defined as a normal position as a one-direction swinging position, and the position where the main body 25 is in the state shown in fig. 2 is defined as a reverse position as a other-direction swinging position.

The main body portion 27 is a portion having a smaller outer shape than the outer shape of the travel wheel 24. The main body portion 27 constitutes a portion from the upper portion to the lower portion of the body portion 25 via the rear portion. The main body portion 27 has an outer shape along at least a part of a cylindrical surface, for example. In the present embodiment, the main body portion 27 has a semi-cylindrical planar outer shape, for example. The main body 27 is arranged coaxially with the travel wheel 24 (including substantially coaxially). That is, the traveling wheels 24 are pivotally supported on both side portions of the main body portion 27.

The extension projection 28 is a portion having a larger outer shape than the outer shape of the travel wheel 24. The extension protrusion 28 is formed integrally with the main body portion 27. The extending projection 28 extends and projects from the main body portion 27, for example, in the radial direction of the travel wheel 24. For example, the upper and lower portions of the extension portion 28 extend from the upper and lower portions of the main body portion 27 in the tangential direction of the main body portion 27. The extended protrusion 28 is provided with a connection receiving portion 29 shown in fig. 3 and 4. That is, the cleaner body 13 includes the connected portion 29. In addition, the extension protrusion 28 is not necessarily configured.

The connected portion 29 is an opening portion connected to a base end portion, which is a downstream end portion of the air passage body 22. The connected portion 29 is open at the front end of the main body 25. In the present embodiment, the connected portion 29 is located at the tip end of the extending protrusion 28, for example. The connected portion 29 is located at the center (including a substantially center portion) in the width direction of the extending protrusion 28. The connected portion 29 is formed to communicate with the dust collecting portion 14. That is, the connected portion 29 may be formed in the dust collection unit 14.

The dust collecting unit 14 is a part that collects dust sucked together with air from the air by negative pressure generated by driving of the electric blower 15 (fig. 6). The dust collecting part 14 may be integrally assembled to the cleaner body 13 (main body part 25), or may be detachable from the cleaner body 13 (main body part 25).

The electric blower 15 shown in fig. 6 generates a negative pressure by rotating a fan by a motor, and sucks dust and air into the dust collecting unit 14.

The power supply unit uses, for example, a bobbin device having a power supply line connected to a commercial ac power supply, or a battery such as a secondary battery.

The control unit controls the operation of the electric blower 15 and the like. That is, the control unit controls the amount of electricity supplied from the power supply unit to the electric blower 15 and the like, thereby controlling the operation states such as on/off and operation power of the electric blower 15 and the like. As the control unit, for example, a microcomputer or the like is used.

The setting button 20 is used for a user to set operations of the electric blower 15 and the like. The setting button 20 is provided on the air path body 22 in the present embodiment, for example, but may be provided on the cleaner body 13, for example.

The air passage body 22 shown in fig. 1 to 6 causes negative pressure generated by driving the electric blower 15 to act on the ground or the like. That is, the air passage 22 is connected to the suction side of the electric blower 15. In the horizontal vacuum cleaner 11, the air duct body 22 can be moved by a user pulling the cleaner body 13. The air duct body 22 is detachable from the cleaner body 13, for example. The air passage 22 includes a flexible tube 31. The air duct 22 includes a connecting body (attachment) 32. The air passage 22 includes a support member 33. The air passage 22 may also include a biasing member 34 (fig. 3). The air duct 22 may include a main body grip 35. The air duct 22 is provided with a manual operation portion 36. The air duct 22 may also include an extension pipe 37. The air duct body 22 may include a suction port body 38. Therefore, the electric vacuum cleaner 11 includes the hose body 31. The electric vacuum cleaner 11 further includes a connecting body 32. The electric vacuum cleaner 11 further includes a support member 33. The electric vacuum cleaner 11 may further include a biasing member 34. The electric vacuum cleaner 11 may further include a main body grip 35. The electric vacuum cleaner 11 is provided with a manual operation unit 36. The electric vacuum cleaner 11 may further include an extension pipe 37. The electric vacuum cleaner 11 may further include a suction port body 38.

The flexible tube body 31 is formed in a flexible, long cylindrical shape.

The connecting body 32 connects the air passage body 22 to the main body 25 (connected portion 29) of the cleaner body 13. More specifically, the connecting body 32 connects a base end side (one end side) which is a downstream end side of the hose body 31 to the main body portion 25 (connected portion 29) of the cleaner body 13. The connecting body 32 is provided independently of the cleaner body 13. The connecting body 32 is provided with a holding portion 41. The connecting body 32 is provided with a connecting portion 42. The connecting body 32 may also include a side support portion 43.

The holding portion 41 holds the proximal end side of the flexible tube body 31. The holding portion 41 is formed in a straight tube shape, i.e., a cylindrical shape (including a substantially cylindrical shape). The holding portion 41 is positioned in the front-rear direction. The flexible tube body 31 projects from one end portion, which is the distal end portion of the holding portion 41. Therefore, the proximal end portion of the flexible pipe body 31 is positioned in the radial direction of the body portion 25. The other end portion, which is the base end portion of the holding portion 41, is in contact with the tip end portion of the main body portion 25 (extending portion 28).

The connecting portion 42 is inserted into the connected portion 29 to communicate the air path body 22 with the dust collecting portion 14. The connecting portion 42 is formed coaxially with (including substantially coaxially with) the holding portion 41, for example. The connecting portion 42 projects toward the base end of the holding portion 41. Thus, the connecting portion 42 is located on the opposite side of the flexible pipe body 31 with respect to the holding portion 41.

The side support portion 43 stabilizes the connecting body 32 connected to the main body portion 25 (connected portion 29) of the cleaner body 13 in the width direction. The side support portions 43 are provided to protrude from both sides of the holding portion 41. These side support portions 43 extend in the width direction along the front end portion of the main body portion 25 (extending projection portion 28). The side support portion 43 is provided with a jig, not shown. Therefore, the electric vacuum cleaner 11 (air duct body 22) includes the jig. The jig is used to detachably fix the air duct body 22 to the cleaner body 13. The jig may be provided to the cleaner body 13 (body portion 25), for example.

The support member 33 defines each swing end (swing limit position) of the main body 25 at a position where the base end side, which is one end side of the flexible pipe body 31, does not contact the floor F by contact with the floor F. That is, the support member 33 prevents the base end side of the flexible tube body 31 from coming into contact with the floor F by supporting the body 25, which swings about the rotation axis of the travel wheel 24, on the floor F to restrict further swinging of the body 25. The support member 33 is provided at a position on the side of the main body 25 in one direction of swinging and at a position on the side of the other direction of swinging with respect to the connecting body 32. In other words, the support member 33 is located on the upper side and the lower side, which are opposite to each other in the swinging direction, with the center axis of the base end side (the position held by the connection body 32 (the holding portion 41)) of the connection body 32 (the air path body 22) interposed therebetween. That is, as the support member 33, a normal position support member 47 which is a first support member located on the side of the connecting body 32 in the first direction of swinging of the main body 25 and a reverse position support member 48 which is a second support member located on the side of the connecting body 32 in the other direction of swinging of the main body 25 are set. The support member 33 may include wheels 49.

The normal position support member 47 defines a swinging end of the main body 25 in one direction by contacting the floor F in a state where the main body 25 swings in one direction with respect to the vertical plane P. That is, the normal position support member 47 supports the main body portion 25 at the normal position on the floor F. Therefore, the normal position support member 47 is positioned lower than the connecting body 32 in a state where the main body 25 is in the normal position, and is positioned upper than the connecting body 32 in a state where the main body 25 is in the reverse position. The normal position support member 47 is located rearward of the holding portion 41. The normal position support member 47 may be provided to the main body grip 35, for example. Therefore, the normal position support member 47 is located at the lower portion of the main body 25 at the normal position of the main body 25. The normal position support member 47 may be pivotally supported in the vertical direction with respect to the connecting body 32 (main body grip portion 35), for example. The normal position support member 47 forms a gap vertically between the base end side of the flexible pipe body 31 and the floor F in a state of being in contact with the floor F. In the present embodiment, the normal position support member 47 positions the connecting body 32, for example, in a horizontal direction (including a substantially horizontal direction) in a state of being in contact with the floor F.

The reverse position support member 48 is in contact with the floor F in a state where the main body 25 is swung in the other direction with respect to the vertical plane P, and defines a swinging end of the main body 25 in the other direction. That is, the reverse position supporting member 48 supports the main body portion 25 at the reverse position on the floor F. Therefore, the reverse position supporting member 48 is positioned lower with respect to the connecting body 32 in a state where the main body 25 is in the reverse position, and is positioned upper with respect to the connecting body 32 in a state where the main body 25 is in the normal position. The reverse position supporting member 48 is located below the holding portion 41 at the reverse position of the main body 25. Therefore, the reverse position supporting member 48 is positioned at a lower portion in front of the main body 25 in the front position of the main body 25. In addition, the reverse position supporting member 48 forms a gap vertically between the base end side of the flexible tube body 31 and the floor F in a state of being in contact with the floor F. In the present embodiment, the reverse position supporting member 48 positions the connecting body 32 in the horizontal direction (including the substantially horizontal direction) in a state of being in contact with the floor F.

As a result, in the present embodiment, the main body 25 can swing, for example, about 180 ° in the front-rear direction between the forward position and the backward position around the rotation axis of the travel wheel 24.

The wheels 49 are auxiliary wheels that assist the travel of the cleaner body 13. The wheels 49 are driven wheels having a smaller diameter than the travel wheels 24. In the present embodiment, the wheels 49 are provided rotatably on the normal position support member 47 and the reverse position support member 48, respectively. That is, in the present embodiment, the wheel 49 is provided with a normal position wheel 51 as a first wheel rotatably provided on the normal position support member 47 and a reverse position wheel 52 as a second wheel rotatably provided on the reverse position support member 48. The wheel 49 is a land portion that directly contacts the floor F in the support member 33. The wheel 49 may be provided with a cushioning member such as a nonwoven fabric on the surface thereof for cushioning the impact of contact with the floor F, or the wheel 49 itself may be formed of an elastic body (e.g., rubber or an elastic body) to provide a cushioning member for cushioning the impact of contact with the floor F. The wheel 49 is not necessarily configured.

The biasing member 34 shown in fig. 3 biases the support member 33 against the connecting body 32. That is, the biasing member 34 keeps the supporting member 33 in contact with the floor F at an appropriate contact pressure by allowing the supporting member 33 to follow a step due to unevenness of the floor F, a small obstacle, or the like. Further, the biasing member 34 dampens the impact of the contact of the support member 33 with the floor F. In the present embodiment, the biasing member 34 biases the positive position support member 47 against the connecting body 32, for example. That is, the biasing member 34 biases the normal position support member 47 in a direction protruding from the connecting body 32. For example, a coil spring is used as the biasing member 34, but a torsion spring, an elastic body, or the like may be used. The biasing member 34 may bias the reverse position supporting member 48 against the connecting body 32, or may be provided with a member that biases the normal position supporting member 47 against the connecting body 32 and a member that biases the reverse position supporting member 48 against the connecting body 32. The biasing member 34 is not necessarily configured.

The main body grip 35 shown in fig. 1 to 3 is gripped by a user when the cleaner main body 13 is lifted. In particular, the main body grip 35 is gripped by a hand H of the user during the storage work of the electric vacuum cleaner 11 (fig. 5). The main body grip 35 is provided along the traveling direction of the traveling wheel 24 of the cleaner main body 13, i.e., the front-rear direction, at the connecting body 32. In the present embodiment, the main body grip 35 is an annular portion provided annularly to the connecting body 32. That is, the main body grip 35 includes a gripped portion 55 gripped by a user, an anterior coupling portion 56 that is one end side coupling portion (first coupling portion) and connects an end of the gripped portion 55 to the connecting body 32, and a posterior coupling portion 57 that is the other end side coupling portion (second coupling portion). The gripped portion 55 is thick and thin enough to be gripped by a user, and is formed to have a length enough to be gripped. The main body grip 35 is formed in the longitudinal direction of the gripped portion 55 along the traveling direction of the traveling wheels 24 of the cleaner main body 13, i.e., the front-rear direction. In the present embodiment, the main body grip portion 35 is integrally provided with the holding portion 41. Therefore, an opening 59 penetrating in the width direction is formed between the main body grip portion 35 and the connecting body 32 (holding portion 41). Further, the tip end portion of the main body grip portion 35, which is the end portion on the air passage body 22 (flexible tube body 31) side, is inclined in a direction toward the center of the air passage body 22 (flexible tube body 31). That is, the front coupling portion 56 is an inclined portion inclined in a direction approaching the center of the air passage body 22 (flexible tube body 31) toward the front. The main body grip portion 35 is inclined in a direction in which the gripped portion 55 approaches the center of the air passage body 22 (flexible tube body 31) forward. Therefore, the entire main body grip portion 35 is inclined in a direction approaching the center of the air passage body 22 (flexible tube body 31) in the forward direction. In the present embodiment, the main body holding portion 35 is provided at a lower portion of the connecting body 32 in a state where the main body 25 is in the normal position, and is provided at a position which becomes an upper portion of the connecting body 32 in a state where the main body 25 is in the reverse position. In the present embodiment, the main body grip portion 35 is provided with the normal position support member 47 near the rear end portion of the gripped portion 55, that is, near the position where the gripped portion 55 and the rear connecting portion 57 are continuous. The main body grip 35 is not necessarily configured.

The manual operation portion 36 shown in fig. 6 is also referred to as a grip tube or the like, and is provided on the distal end side (the other end side) which is the upstream end side of the flexible tube body 31. The manual operation portion 36 connects the distal end side of the flexible tube body 31 to the proximal end side (one end side) which is the downstream end side of the extension tube 37. The manual operation unit 36 may be provided with, for example, a setting button 20. The manual operation portion 36 is a portion that the user grips during dust collection. The manual operation portion 36 may be provided with a grip portion 61 for gripping the wind path body 22, for example, in a protruding manner. The setting button 20 may be disposed on the grip portion 61. The grip portion 61 is not necessarily configured, and the user may directly grip the manual operation portion 36. In this case, the setting button 20 may be directly disposed on the manual operation unit 36.

The extension pipe 37 is formed in a straight pipe shape from, for example, hard synthetic resin. The extension pipe 37 is connected to the distal end side (manual operation portion 36) of the flexible tube body 31 at the proximal end side, and is connected to the suction port body 38 at the distal end side, for example. The extension pipe 37 is not necessarily configured.

The suction port body 38 sucks dust from the floor surface by a negative pressure generated by driving of the electric blower 15. In the present embodiment, the suction port body 38 is a floor brush that is placed on a floor surface and moves on the floor surface, for example. The suction port body 38 includes a housing 63. The suction port body 38 is provided with a connection pipe 64 connected to the distal end side of the extension pipe 37. The suction port body 38 may be provided with a rotary cleaning element. The suction port body 38 is not necessarily configured.

Next, the dust suction operation according to the above-described embodiment will be described.

In a state where the extension pipe 37 and the suction port body 38 are connected to the distal end portion of the hose body 31 connected to the cleaner body 13 via the connecting body 32, the user places the suction port body 38 on the floor, grips the grip 61, and operates the setting button 20 to drive the electric blower 15. Then, the cleaner body 13 is pulled by the air passage body 22 to move to an appropriate position, the suction port body 38 is repeatedly moved forward and backward on the floor surface, and dust on the floor surface is sucked together with air from the suction port of the suction port body 38 by the negative pressure generated by the driving of the electric blower 15.

In this case, the cleaner body 13 can be used in both the forward position and the reverse position of the body 25. For example, when the main body 25 is in the normal position, the normal position support member 47 is in contact with the floor F by the normal position wheels 51 (fig. 1), and the cleaner body 13 (main body 25) is supported on the floor F at 3 points together with the travel wheels 24 on both sides, thereby enabling stable travel. At this time, the base end side of the flexible pipe body 31 is secured in height with respect to the floor F by the normal position support member 47 so as not to contact the floor F, and does not rub against the floor F. On the other hand, for example, when the main body 25 is in the reverse position, the reverse position supporting member 48 is in contact with the floor F by the reverse position wheels 52 (fig. 2), and stably travels by supporting the cleaner body 13 (main body 25) on the floor F at 3 points together with the traveling wheels 24 on both sides. At this time, the base end side of the flexible pipe body 31 is secured in height with respect to the floor F by the reverse position supporting member 48 so as not to contact the floor F, and does not rub against the floor F.

Further, for example, at the time of direction change, the main body 25 is swung so as to be reversed vertically about the rotation axis of the travel wheel 24, so that the normal position and the reverse position are changed over, and the travel direction can be reversed on the spot.

The dust-containing air sucked from the suction port of the suction port body 38 is sucked into the dust collecting part 14 through the extension pipe 37 and the hose body 31 from the connection pipe 64. In the dust collecting unit 14, dust in the dust-containing air is separated and collected, and the air from which the dust is separated is sucked into the electric blower 15, cooled by the electric blower 15, and then discharged from the cleaner body 13. When the dust collection is completed, the user operates the setting button 20 to stop the electric blower 15. The dust collected by the dust collection unit 14 is discarded as necessary.

As described above, according to the present embodiment, by providing the support member 33 for defining each swinging end of the main body portion 25 at the position where the one end side of the hose body 31 does not contact the floor F by contact with the floor F with respect to the position of the connecting body 32 on the side of the one direction of swinging of the main body portion 25 and the position on the side of the other direction of swinging, the height of the hose body 31 from the floor F is secured at the time of swinging of the main body portion 25, so that the lower portion of the hose body 31 is hard to contact the floor F, and further, the base end of the hose body 31 is pressed upward by contact of the lower portion of the hose body 31 with the floor F, and the base end of the hose body 31 hits the connecting body 32 (holding portion 41) and is hard to deform, or the base end side lower portion of the hose body 31 rubs against the floor F at the time of traveling of the cleaner body 13, and thus the hose body 31 is hard to be damaged.

Further, since the support member 33 (the normal position support member 47) is biased by the biasing member 34 with respect to the connecting body 32, the impact when the support member 33 (the normal position support member 47) contacts the floor F can be alleviated by the biasing member 34, and therefore the user can swing the main body 25 of the cleaner body 13 to reverse it without worrying.

The supporting member 33 includes a wheel 49 that is in contact with the floor F, and the dust collector body 13 is supported by the wheel 49 together with the traveling wheel 24 so as to be able to travel, so that the stability of travel can be improved. Further, the normal position support member 47 is pivotally supported rotatably with respect to the connecting body 32 (main body grip portion 35), and is biased in a direction protruding from the connecting body 32 (main body grip portion 35) by the biasing member 34, so that an appropriate contact pressure between the normal position wheel 51 and the floor F can be maintained, and the cleaner main body 13 can smoothly travel.

Further, by providing the main body grip 35 to be gripped to the connecting body 32, the user can grip the main body grip 35 and lift the cleaner main body 13.

Further, by providing the main body grip 35 along the traveling direction of the traveling wheels 24 of the cleaner main body 13, for example, in a state where the front portion (the wind path body 22 side) of the cleaner main body 13 is raised upward, the cleaner main body 13 can be easily lifted up by the main body grip 35, and the space formed between the connecting body 32 and the floor F can be effectively used by the support member 33, and the main body grip 35 can be disposed in a space-saving manner.

Further, by inclining the end portion (the front coupling portion 56) of the main body grip portion 35 on the hose body 31 side toward the center of the hose body 31, for example, at a position where the main body grip portion 35 is positioned on the lower side, which is a normal position in the present embodiment, the end portion (the front coupling portion 56) of the main body grip portion 35 on the hose body 31 side facing the floor F functions as a so-called sled with respect to the irregularities on the floor F, the small obstacle O (fig. 1), and the like, and can easily get over them to smoothly travel the cleaner main body 13. Further, since the entire body grip portion 35 is inclined toward the front in a direction approaching the center of the flexible tube body 31, it is possible to more easily get over irregularities on the floor F, small obstacles, and the like.

In the above-described embodiment, the reverse position supporting member 48 may be provided rotatably with respect to the connecting body 32 instead of the normal position supporting member 47 of the supporting member 33, or the normal position supporting member 47 and the reverse position supporting member 48 may be provided rotatably with respect to the connecting body 32. In this case, it is preferable that the reverse position supporting member 48 is also biased by the biasing member 34.

The main body gripping part 35 may be provided at a position below the connecting body 32 in a state where the main body 25 is in the reverse position, at a position above the connecting body 32 in a state where the main body 25 is in the normal position, or the main body gripping part 35 may be provided at a position below the connecting body 32 in a state where the main body 25 is in the normal position, and the main body gripping part 35 may be provided at a position below the connecting body 32 in a state where the main body 25 is in the reverse position. That is, the main body gripping portion 35 may be provided on the connecting body 32 at each of the one-direction swinging side (normal position side) and the other-direction swinging side (reverse position side) of the main body portion 25.

Further, the support member 33 itself may be formed of an elastic body. In this case, since the impact when the support member 33 contacts the floor F can be alleviated without using the biasing member 34, the user can swing the main body 25 of the cleaner body 13 without worry and turn it backward.

While several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope and equivalents of the invention described in the claims.

Claims

1. An electric vacuum cleaner is characterized by comprising:

a cleaner body provided with a traveling wheel and a body portion that is provided so as to be capable of swinging in a range extending from one side to the other side with respect to a vertical plane including a rotation shaft of the traveling wheel;

a flexible pipe body;

a connecting body connecting one end side of the flexible pipe body to the main body;

a support member provided at a position on one side in a swinging direction and a position on the other side in the swinging direction of the main body with respect to the connection body, the support member defining each swinging end of the main body at a position where one end side of the flexible pipe body does not contact the floor by contact with the floor; and

a body grip portion provided in the connecting body and gripped;

an end portion of the main body grip portion on the hose body side is inclined in a direction toward a center of the hose body so as to function as a sled with respect to the floor;

the one support member is disposed in the main body grip portion, and the one support member has a wheel at a portion that is in contact with the floor.

2. The electric vacuum cleaner according to claim 1,

the support member is provided with a biasing member that biases the support member with respect to the connection body.

3. The electric vacuum cleaner according to claim 1,

the support member is formed of an elastomer.

4. The electric vacuum cleaner according to claim 2,

the support member is formed of an elastomer.

5. The electric vacuum cleaner according to any one of claims 1 to 4,

the main body holding part is arranged along the advancing direction of the advancing wheel of the cleaner main body.

6. The electric vacuum cleaner according to any one of claims 1 to 4,

the body holding portion is provided on the connecting body at each position of the swinging one-direction side and the swinging other-direction side of the body portion.