CN104114071A - Suction device for electric vacuum cleaner, and electric vacuum cleaner with same - Google Patents

Abstract

A connection pipe section (12) which forms a suction device (10) at least comprises: a first connection pipe (21) connected in a rockable manner to the suction device body (11); and a second connection pipe (22) connected in a pivotable manner to the first connection pipe (21). A wheel section (13) is mounted to the lower part of the second connection pipe (22) through a wheel mounting section (14). The wheel mounting section (14) mounts the wheel support body (32) of the wheel section (13) so that the wheel support body (32) can tilt about the center thereof.

Description

Electric dust collector is with suction fitting and possess the electric dust collector of this suction fitting

Technical field

The present invention relates to suction fitting and the electric dust collector that possesses this suction fitting for a kind of electric dust collector, especially relate to and can make electric dust collector that operability further improves with suction fitting and possess the electric dust collector of this suction fitting.

Background technology

For electric dust collector, in the past, in order to seek to be used in the operability of the suction fitting that sucks dust etc., improved and realized high sweeping efficiency, various technology have been proposed.For example, in patent documentation 1, for horizontal (Japanese: dust catcher キ ャ ニ ス タ type), user just can operate arbitrarily the angle of sucking mouth simply by operating nearly skill handle, with this end in view proposed the sucking mouth (suction fitting) consisting of suction inlet main body and free linking part, this free linking part consists of the arm of 2 tubuloses.

This sucking mouth is configured to: the first arm in 2 arms is installed on suction inlet main body in the mode that can rotate to angle of attack Y-direction at the first rotating part, and the second arm is can be installed in the mode of the second rotating part directions X rotation to the left and right the other end of the first arm.And the surfaces of revolution of the second rotating part is set as always forwards tilting predetermined angular Z, one end of the first arm is installed at the upper side of this surfaces of revolution, one end of the second arm is installed in lower side.

In addition, in patent documentation 2, a kind of surface processing equipment is disclosed, at vertical (Japanese: ア プ ラ イ ト type), in surface processing equipment, take and improve operability as object when the surface treatments such as cleaning, be configured to and have: the handle with fore and aft axis; Surface treating head (suction fitting); In the mode of rotating with respect to handle, be installed on the supporting mass assembling part of handle; And the linkage between handle and surface treating head.

In this surface processing equipment, above-mentioned supporting mass assembling part is spherical or roller shape, be configured to centered by rotating shaft and rotate, aforementioned link mechanism is configured to when above-mentioned supporting mass assembling part and handle are rotated centered by fore and aft axis, makes surface treating head turn to new direction.

Patent documentation 1: Japanese kokai publication hei 11-187993 communique

Patent documentation 2: Japanese Unexamined Patent Application Publication 2006-503608 communique

Summary of the invention

the problem that invention will solve

Yet in above-mentioned prior art, existence cannot fully improve the situation of the operability of suction fitting.

For example, the suction fitting that patent documentation 1 proposes is the particularization structure for horizontal dust collector, can not directly apply to for example vertical type dust collector.

Conventionally, one end that horizontal dust collector becomes suction hose is installed on main body of dust collector, the other end of this suction hose is provided with one end of tube connector, and, the other end of tube connector is provided with the structure of suction fitting, in one distolateral (side being connected with the other end of suction hose) of tube connector, is provided with handle part.

So, user is controlling handle part and is operating suction fitting by tube connector, owing to having the arm consisting of the first arm and the second arm, thereby realizes the raising of operability.On the other hand, in vertical type dust collector, main body of dust collector is positioned at the position corresponding with tube connector, therefore, if directly apply the structure of patent documentation 1, become will with wave weight, volume all the mode of larger main body of dust collector operate, thereby make operability cannot obtain substantial raising.

In addition, the surface processing equipment that patent documentation 2 proposes has a down dip on the turning cylinder of supporting mass assembling part of spherical or roller shape by making, and makes suction fitting (surface treating head) rotation.So,, because radius of turn becomes large, so user will make suction fitting carry out Small-angle Rotation, just must significantly reverse handle.In this case, there is the tendency of the burden that increases the weight of user's wrist, in the situation that requiring to make suction fitting carry out Small-angle Rotation, can fully improve operability hardly.

The present invention makes in order to solve such problem, its object be to provide a kind of kind that can not be subject to electric dust collector restriction make the suction fitting that the operability of this electric dust collector further improves and the electric dust collector with this suction fitting.

for the scheme of dealing with problems

Electric dust collector of the present invention, has in order to solve above-mentioned problem with suction fitting: suction fitting main body, and it has suction inlet at lower surface; Tube connector portion, it is connected with the rear portion of this suction fitting main body; And the wheel portion of the use of travelling, it is arranged at this tube connector portion; Above-mentioned tube connector portion at least consists of the first tube connector and the second tube connector, and one end of this first tube connector is connected with the rear portion upside of above-mentioned suction fitting main body, and the other end of this first tube connector links the second tube connector freely rotating around axis direction; Above-mentioned wheel portion at least consists of wheel support body and pair of right and left wheel, and this wheel support body supports above-mentioned wheel at two ends in the revolvable mode of above-mentioned wheel; Also there is wheel installation portion, itself so that above-mentioned wheel support physical efficiency take the central portion of this wheel support body and this wheel support body be installed on to the downside of above-mentioned the second tube connector as the mode that fulcrum carries out tilting action.

Adopt said structure, wheel support body can be installed on the downside of the second tube connector in tube connector portion obliquely by wheel installation portion.Thus, the inclination of the rotation by the bond sites between swing, the first tube connector and second tube connector of the bond sites between suction fitting main body and the first tube connector and the wheel support body (wheel portion) being caused by wheel installation portion, makes the wheel portion that is arranged at the second tube connector lower surface carry out in fact three-dimensional tilt.So, can utilize the inclination of wheel portion and by tube connector portion, suction fitting main body easily be rotated, thereby can improve the operability of suction fitting.

In addition, the electric dust collector of said structure also can be configured to suction fitting: above-mentioned wheel installation portion to be can make above-mentioned wheel portion be installed on along the position of this second tube connector lower surface so that the mode of rotating centered by axis to be installed, and this installation axis is that the fore-and-aft direction along above-mentioned tube connector portion rolls forward oblique axis.

In addition, the electric dust collector of said structure also can form with suction fitting: above-mentioned wheel installation portion has torsionspring member, and the second tube connector that this torsionspring member is used for tilting to following the inclination of above-mentioned wheel support body is to a side application of force contrary to incline direction.

In addition, the electric dust collector of said structure also can be configured to suction fitting: the angle that above-mentioned installation axis becomes with respect to swept surface, installation shaft line angle θ 1 is acute angle.

In addition, the electric dust collector of said structure also can be configured to suction fitting: as follows above-mentioned the first tube connector and above-mentioned the second tube connector are linked up: when the face that above-mentioned the second tube connector with above-mentioned the first tube connector link is rotated is made as plane of rotation, the angle that this plane of rotation becomes with respect to above-mentioned swept surface, plane of rotation angle θ 0 becomes the large acute angle than above-mentioned installation shaft line angle θ 1.

In addition, the electric dust collector of said structure also can be configured to suction fitting: while being made as pivot center at the center that above-mentioned the second tube connector is rotated with respect to above-mentioned the first tube connector, the direction of the direction of this pivot center and above-mentioned installation axis is in position relationship intersected with each other.

In addition, the electric dust collector of said structure also can be configured to suction fitting: the angle that above-mentioned pivot center becomes with respect to above-mentioned swept surface, and turning cylinder line angle θ 2 is in the scope of 5 °～45 °, and above-mentioned installation shaft line angle θ 1 is in the scope of 5 °～45 °.

In addition, the electric dust collector of said structure also can be configured to suction fitting: above-mentioned tube connector portion also has the 3rd tube connector, the 3rd tube connector is connected in the other end of above-mentioned the second tube connector at the other end of above-mentioned the second tube connector in the mode that can swing at fore-and-aft direction, the residing position of above-mentioned wheel installation portion of above-mentioned the second tube connector than the position of the axis of oscillation of above-mentioned the 3rd tube connector on the front.

In addition, the electric dust collector of said structure also can be configured to suction fitting: can change above-mentioned wheel portion with respect to the relative position of above-mentioned suction fitting main body, so that above-mentioned electric dust collector is being installed on electric dust collector and is aspirating dust with suction fitting, even the used time, above-mentioned electric dust collector is positioned on above-mentioned wheel portion with the mass axis of suction fitting or the rear of above-mentioned wheel portion, and when taking in, above-mentioned electric dust collector with the mass axis of suction fitting between above-mentioned suction fitting main body and above-mentioned wheel portion.

In addition, the electric dust collector of said structure also can be configured to suction fitting: above-mentioned wheel portion has linkage, by operating this linkage, makes above-mentioned wheel portion with respect to the change in location of above-mentioned suction fitting main body.

In addition, the electric dust collector of said structure also can be configured to suction fitting: above-mentioned the 3rd tube connector has jut, this jut is centered by the axis of oscillation of the 3rd tube connector, along with the swing of the 3rd tube connector, rotate, when carrying out above-mentioned taking in, by the swing of above-mentioned the 3rd tube connector, the upper surface butt of above-mentioned jut and above-mentioned wheel support body, thus limit the tilting action of above-mentioned wheel portion.

In addition, the electric dust collector of said structure also can be configured to suction fitting: on above-mentioned linkage, be provided with holding section, this holding section is by the operation of above-mentioned linkage and can be connected to above-mentioned the 3rd tube connector, the engaged part of making the shape corresponding with this holding section with the position of above-mentioned holding section butt in above-mentioned the 3rd tube connector.

In addition, the present invention also comprises the electric dust collector of the electric dust collector use suction fitting with above-mentioned any structure.

On the basis with reference to accompanying drawing, can above-mentioned purpose clearly of the present invention from following detailed description preferred embodiment, other object, feature and advantage.

the effect of invention

In the present invention, adopt above structure to reach following effect: can provide the kind that is not subject to electric dust collector restriction make the suction fitting that the operability of this electric dust collector further improves and the electric dust collector with this suction fitting.

Accompanying drawing explanation

Fig. 1 means the stereogram of an example of the structure of suction fitting for the electric dust collector of embodiments of the present invention.

Fig. 2 means the front view by the resulting structure of suction fitting from the electric dust collector shown in forward observation Fig. 1.

Fig. 3 means from rear and observes the rearview of the resulting structure of suction fitting for the electric dust collector shown in Fig. 1.

Fig. 4 means from left side and observes the left view of the resulting structure of suction fitting for the electric dust collector shown in Fig. 1.

Fig. 5 means from right side and observes the right view of the resulting structure of suction fitting for the electric dust collector shown in Fig. 1.

Fig. 6 means from top and observes the top view of the resulting structure of suction fitting for the electric dust collector shown in Fig. 1.

Fig. 7 means the upward view by the resulting structure of suction fitting from the electric dust collector shown in beneath Fig. 1.

Fig. 8 means from left side and observes the resulting profile of cross-section structure of the fore-and-aft direction of suction fitting for the electric dust collector shown in Fig. 1.

Fig. 9 means the exploded perspective view of an example of the structure of the wheel installation portion that the electric dust collector shown in Fig. 1 has with suction fitting.

Figure 10 is comparison diagram that the detailed structure of the wheel installation portion shown in Fig. 9 is represented together with the structure of wheel portion, section and the place ahead.

Figure 11 A is the plane of rotation of the second tube connector that has with suction fitting of the electric dust collector shown in key diagram 1 and the schematic diagram of the installation shaft of wheel installation portion, and Figure 11 B is the schematic diagram of the turning cylinder of the above-mentioned installation shaft of explanation and the second tube connector.

Figure 12 A means the top view of the suction fitting state that travel direction is changed to the left for the electric dust collector shown in Fig. 1, and Figure 12 B means the top view of the state of travel direction conversion to the right.

Figure 13 A means a frontal example, wheel installation portion of slotted hole and the comparison diagram of back side direction for the spring that arranges in the installation portion main body of the wheel installation portion shown in Fig. 9, and Figure 13 B means that 2 torsionspring members having from wheel installation portion back side separately observes the resulting schematic diagram of action of torsionspring member.

Figure 14 A means and from left side, observes the resulting schematic diagram of the state electric dust collector shown in Fig. 1 is arranged on to vertical electric dust collector with suction fitting and uses, and Figure 14 B means and from left side, observes the resulting schematic diagram of state while taking in.

Figure 15 means jut that the electric dust collector shown in Fig. 1 has with suction fitting and the major part enlarged drawing of the butt state between the upper surface of wheel support body.

Figure 16 means the major part enlarged drawing of the fastening state between the holding section of the linkage that the electric dust collector shown in Fig. 1 has with suction fitting and the engaged part of the 3rd tube connector.

Figure 17 means the stereogram of an example of the structure of the vertical electric dust collector of suction fitting for the electric dust collector applied shown in Fig. 1.

Figure 18 means the stereogram of an example of the structure of the Horizontal electronic dust catcher of suction fitting for the electric dust collector applied shown in Fig. 1.

The specific embodiment

Below, with reference to the accompanying drawings of the preferred embodiment of the present invention.In addition, below in all figure, the Reference numeral identical to identical or suitable element annotation, thus omit its repeat specification.

(embodiment 1)

First, as embodiments of the present invention 1, electric dust collector is specifically described with an example of the concrete structure of suction fitting and its use etc.In addition, in the following description, for simplicity, use suction fitting referred to as " suction fitting " electric dust collector in case of no particular description.

(overall structure of suction fitting)

As shown in Figures 1 to 8, the suction fitting 10 of present embodiment has suction fitting main body 11, tube connector portion 12, wheel portion 13 and wheel installation portion 14.

As shown in the top view of the front view of the overall perspective view of Fig. 1, Fig. 2 and Fig. 6, suction fitting main body 11 is elongated tabulars, on the basis of Fig. 1 and Fig. 6, as shown in the side view of Fig. 4 and Fig. 5, at the central rear of length direction, is connected with tube connector portion 12.In addition, in the present embodiment, using the side of living in of suction fitting main body 11 in suction fitting 10 as " front ", using its opposition side, be that wheel portion 13 side of living in is as " afterwards ".In addition, the left and right directions of suction fitting 10 regulation is the left and right directions when the place ahead.

As shown in the upward view of Fig. 7, suction fitting main body 11 has suction inlet 111 in the place ahead of lower surface.Suction inlet 111 is along the opening of the rectangular shape of the length direction setting of suction fitting main body 11, on the basis of Fig. 7, as shown in the profile of Fig. 8, in the inside of suction inlet 111, is provided with rotating brush 112.Rotating brush 112 is for example cylindric, is configured to and can be rotated by not shown brush rotating mechanism.Brush rotating mechanism can, by motor as drive source, also can be used as drive source by air turbine.

In addition, on the basis of Fig. 7, as shown in Fig. 4, Fig. 5 and Fig. 8, at the lower surface of suction fitting main body 11, be provided with a pair of rear square wheel 15 and a pair of front square wheel 16.As shown in the rearview of Fig. 3, rear square wheel 15 is positioned at the position near tube connector portion 12 at the rear of suction fitting main body 11.As shown in Figure 7, front square wheel 16 is taken turns the place ahead of 15 and outside is positioned at the position near suction inlet 111 in the wings.Utilize above-mentioned rear square wheel 15 and front square wheel 16, suction fitting main body 11 can move on swept surface.

As shown in Fig. 1, Fig. 4 to Fig. 8, tube connector portion 12 is connected with the rear portion of suction fitting main body 11, and in the present embodiment, tube connector portion 12 consists of the first tube connector 21, the second tube connector 22 and the 3rd tube connector 23.

One end of the first tube connector 21 is connected with the rear portion upside of suction fitting main body 11, and the other end is connected with the second tube connector 22.In addition, one end of the first tube connector 21 can swing at fore-and-aft direction with respect to suction fitting main body 11 as shown in Figure 1, also can be fixedly connected in the mode that can not swing suction fitting 11.The second tube connector 22 is linked to its one end the other end of the first tube connector 21 in the mode of freely rotating around axis direction, and the other end of the second tube connector 22 is connected with the 3rd tube connector 23.

In addition, with its one end, the other end at the second tube connector 22 can connect in the mode of fore-and-aft direction swing the 3rd tube connector 23, and the other end of the 3rd tube connector 23 becomes the open end that can be connected with electric dust collector.In addition, as shown in Figure 1 and Figure 4, on the 3rd tube connector 23, be provided with the jut rotating along with the swing of the 3rd tube connector 23.

In addition, in Fig. 1, with arrow M4, represent the swaying direction of the first tube connector 21, with arrow M2, represent the rotation direction of the second tube connector 22, the swaying direction that represents the 3rd tube connector 23 with arrow M3, represents the rotation direction of wheel installation portion 14 described later with arrow M1.In addition, the suction fitting 10 shown in Fig. 1 is in receiving state described later, and under this state, the 3rd tube connector 23 swings to forefront.So, in Fig. 1, with arrow M3, represent that the 3rd tube connector 23 can only rearward swing.

In the present embodiment, tube connector portion 12 consists of tube connector 21,22,23 these three tubular elements, but is not limited to this, tube connector 21,22 these 2 tubular elements at least, consists of.In addition, can be also to be formed by 4 above tubular elements as required, also can there is tubular element member in addition etc.In addition, about the swing of these tube connectors 21,22,23 or rotate with and function etc. will be described hereinafter.

Wheel portion 13 is arranged at tube connector portion 12, can make suction fitting 10 advance together with front square wheel 16 with the rear square wheel 15 that is arranged at suction fitting main body 11 lower surfaces.As shown in Fig. 1, Fig. 3 to Fig. 7, in the present embodiment, wheel portion 13 consists of wheel support body 32, linkage 33 and pair of right and left wheel 31.

Wheel 31 is supported on the two ends of wheel support body 32 revolvably.The concrete shape of wheel 31 is not particularly limited, and can be known shape, but in the present embodiment, as shown in Fig. 3, Fig. 6 and Fig. 7, wheel 31 has the shape that its diameter reduces from being gone laterally by the inner side of wheel support body 32 supportings.In other words, this shape can be described as and has the roughly shape of parabolic section.

If wheel 31 is such shapes, compare with the inner side of wheel 31, the central portion in outside is comparatively outstanding, therefore, even inclination has occurred this suction fitting 10 when making suction fitting 10 reversion as aftermentioned, the side face at the outstanding position of wheel 31 also can contact and be rotated with swept surface.So even in heeling condition, wheel 31 also can be advanced fully on swept surface, thereby can improve the operability of suction fitting 10.

Especially as shown in Figure 3 and Figure 7, wheel support body 32 is elongated tabulars, and the Length Ratio suction fitting main body 11 of its length direction is little.The mode that can rotate with pair of wheels 31 as described above at the two ends of wheel support body 32 supports pair of wheels 31, and the central portion of wheel support body 32 is installed on tube connector portion 12 by wheel installation portion 14.As shown in Figure 6 and Figure 7, wheel support body 32 is set to substantially with respect to the bearing of trend of tube connector portion 12 (fore-and-aft direction) quadrature, but (when being installed on electric dust collector and aspirating dust) in use, can tilt with respect to tube connector portion 12 as described later.

When not using suction fitting 10, particularly, when taking in, linkage 33 limits the swing of the 3rd tube connector 23 and the tilting actions of wheel portion 13.Particularly, under use state, conventionally, the 3rd tube connector 23 rearward swings (toppling over), but when making the 3rd tube connector 23 forwards swing and become the receiving state shown in Fig. 1 from use state, the swing of linkage 33 and the 3rd tube connector 23 is brought to linkedly.Thus, the swing of restriction the 3rd tube connector 23, and the tilting action of limiting wheel portion 13.For an example of the concrete structure of linkage 33 and the restriction of the inclination of wheel portion 13 be will be described hereinafter.

In the present embodiment, wheel portion 13 has the structure consisting of wheel 31, wheel support body 32 and linkage 33, but is not limited to this, by least wheel 31 and wheel support body 32 form.Linkage 33 arranges for the tilting action of limiting wheel supporting mass 32 as described above, but wheel portion 13 also can have mechanism except linkage 33 or member etc. in order to limit tilting action, and wheel portion 13 also can have other structures except wheel 31, wheel support body 32, linkage 33.

Wheel installation portion 14 is in order to be installed on tube connector portion 12 by wheel support body 32 and to arrange.In the present embodiment, wheel installation portion 14 is arranged at the lower surface of the second tube connector 22, and therefore, wheel support body 32 (that is, wheel portion 13) is installed on the second tube connector 22 in tube connector portion 12.Wheel support body 32 is configured to can take self central portion by wheel installation portion 14 and carry out tilting action as fulcrum.An example for the concrete structure of wheel support body 32 will be described hereinafter.

The structure more specifically of above-mentioned suction fitting main body 11, tube connector portion 12 and wheel portion 13, for example, material, size, member of formation etc. are not particularly limited, and can suitably be applied in separately known structure in the field of electric dust collector.For example, suction fitting main body 11 and tube connector portion 12 can be by by formations such as known resin forming article combine, and rotating brush 112 can be also the known structure forming at the cylindrical shell of resin forming article by resinous bristle being planted to hair.In addition, wheel portion 13 also can be by known resin forming article is combined and formed, and pair of wheels 31 also can consist of the elastomeric material of rubber etc.

(detailed structure of wheel installation portion)

Then,, on the basis of Fig. 8, with reference to Fig. 9 and Figure 10, illustrate the more detailed structure of wheel installation portion 14.

As shown in Figure 8 and Figure 9, wheel installation portion 14 at least consists of torsionspring member 41A, 41B, installation portion main body 42, installation axial region 43 and axial region connecting elements 44.

Torsionspring member 41A is positioned at the rear of wheel installation portion 14, and torsionspring member 41B is positioned at the place ahead of wheel installation portion 14.Torsionspring member 41A, 41B are all identical shaped torsion-coil springs (torsionspring), spring main body 410 is configured to steel wire coil coiled, and the steel wire at the two ends of this spring main body 410 is not wound and becomes the arm 411,412 that linearity extends.

An arm in above-mentioned arm 411,412, the first arm 411 is the arms that tangentially extend from circular periphery in one end of spring main body 410, as shown in the hypomere figure of Figure 10, from installation portion main body 42, exposes and can rotate.The periphery butt of this first arm 411 and the second tube connector 22, substantially follows the rotation of the second tube connector 22 and moves.As the second arm 412 of another one arm, it is the arm that the other end in spring main body 410 extends along coiling direction (axis direction of spiral), under state in being housed in installation portion main body 42, as the locating part that limits the rotating range of torsionspring member 41A, 41B, play a role.In addition, for this point, be together elaborated with the explanation of the use state of suction fitting 10.

As shown in the epimere figure of Figure 10 and Fig. 9, installation portion main body 42 is configured to tubular, is fixed on integratedly the central portion of wheel support body 32.In the inside of installation portion main body 42, torsionspring member 41A, 41B have been taken in.As shown in the epimere figure of Figure 10 and stage casing figure, Fig. 8 and Fig. 9, a torsionspring member 41A is accommodated in the rear side of installation portion main body 42, and another torsionspring member 41B is accommodated in face side.

In addition, as shown in the stage casing figure of Figure 10, at the central portion of installation portion main body 42, be provided with spring framing mask 421.As shown in Figure 9, when torsionspring member 41A, 41B are inserted to the inside of installation portion main body 42 from the two ends of installation portion main body 42, utilize spring framing mask 421 to limit the position of torsionspring member 41A, 41B, thereby torsionspring member 41A, 41B can not entered into than the position of needs more by inner position.In addition, on spring framing mask 421, as described later, be provided with the spring slotted hole for the second arm 412 break-through, thus, the second arm 412 can play a role as locating part.

As shown in Figure 9, axial region 43 is installed and is there is bolt or the such shape of nail.Axial region main body 431 is roughly cylindric, is provided with in its back-end cover plate 432, and therefore, if observed from the cover plate 432 of rear end, axial region main body 431 is erect and arranged along vertical line direction.As shown in Figure 8, install under the state of axial region 43 after inserting installation portion main body 42, keep the torsionspring member 41A in this installation portion main body 42 of break-through, the state of 41B.

In addition, as shown in Figure 9, axial region 43 is installed to be inserted from the rear of installation portion main body 42 (rear side), therefore, as shown in Figure 8, the cover plate 432 of rear end is as the lid member of the rear side opening of sealing installation portion main body 42 play a role (in addition, in Fig. 8 for the ease of diagram, to cover plate 432 mark Reference numerals).And, as shown in Figure 9, at the downside of the second tube connector 22, be provided with outstanding axial region downwards and insert frame 221, as shown in the single-point line in Fig. 9, axial region 43 is installed and is inserted installation portion main body 42 inserting this axial region and insert on the basis of frame 221.So, axial region 43 is installed and also as the fixed component that wheel installation portion 14 is fixed on to the second tube connector 22, is played a role.

As shown in Figure 9, axial region connecting elements 44 consists of chimeric position 441, top and periphery installation position 442, and chimeric position 441, this top is embedded in the top that axial region 43 is installed, and this periphery installation position 442 is installed on the periphery of the second tube connector 22.By making to insert the top of the installation axial region 43 after installation portion main body 42, be embedded in chimeric position 441, top, thereby axial region 43 is installed, in the mode that can not depart from from installation portion main body 42, connect.In addition, by periphery installation position 442 being installed on to the second tube connector 22, thereby the second tube connector 22 is fixed at the two ends of installation axial region 43 and installation portion main body 42.; the rear end of installation portion main body 42 (rear side) is inserted axial regions and is inserted frames 221 and be fixed on the second tube connector 22 because axial region 43 is installed as described above, and the front end of installation portion main body 42 (face side) is that the mode that is installed on the periphery of the second tube connector 22 by the axial region connecting elements 44 after the top with axial region 43 is installed is chimeric is fixed.

The wheel installation portion 14 of said structure is arranged at the wheel support body 32 of wheel portion 13 integratedly, therefore, as shown in the hypomere figure of Figure 10 (front view of wheel portion 13), can make wheel portion 13 with the central axis S1 (dotted line in figure of torsionspring member 41A, 41B, identical with the central axis of installation axial region 43 not shown in Figure 10) centered by, along the direction of hollow arrow M1, rotate.In addition, as the central axis S1 of the center of rotation of wheel portion 13, be also the axis along the installation direction of wheel installation portion 14, therefore, below be referred to as for convenience of explanation " axis S1 is installed ".

In addition, as described above, the second arm 412 of torsionspring member 41A, the 41B of wheel installation portion 14 becomes locating part.So, by wheel installation portion 14, cause that the rotation of wheel portion 13 is not that such rotation completely of turning around is revolved in this wheel portion 13, but the part that wheel portion 13 swings degree below the second tube connector 22 is rotated.And as described later, the second tube connector 21 that torsionspring member 41A, 41B performance is tilted to being accompanied by the inclination of wheel support body 32 (wheel portion 13) is to the effect of a side contrary to incline direction (initial position) application of force.

In addition, the structure more specifically of torsionspring member 41A, 41B, installation portion main body 42, installation axial region 43 and axial region connecting elements 44 is not particularly limited, torsionspring member 41A, 41B can be known steel torsionsprings, and installation portion main body 42, installation axial region 43, axial region connecting elements 44 can be equally with wheel portion 13 known resin forming articles.In addition, for the ease of diagram, spring main body 410 to torsionspring member 41A, 41B, the first arm 411 and the second arm 412, the axial region main body 431 of axial region 43 and the cover plate 432 of rear end are installed, chimeric position 441, top and 442 of the periphery installation positions of axial region connecting elements 44 mark Reference numeral in Fig. 9, in Fig. 8, Figure 10, do not mark Reference numeral.

(the use state of suction fitting)

Then,, with reference to Figure 11 A, Figure 11 B and Figure 12 A, Figure 12 B, illustrate an example of the use state of position relationship between tube connector portion 12 and wheel installation portion 14 and suction fitting 10.In addition, Figure 11 A, Figure 11 B are for illustrating suction fitting 10 are loaded to axis under the state on swept surface F and the schematic diagram of angle, and the carrying state of suction fitting 10 is identical.In addition, in Figure 11 A, Figure 11 B, show the use state that the 3rd tube connector 23 rearward swings, only in Figure 11 A, with single-point line, the 3rd tube connector 23 is shown and is positioned at forefront and erects the receiving state arranging.And, in Figure 12 A, Figure 12 A, the state of the suction fitting 10 when the figure in left side in front (left figure) is illustrated in the straightaway under use state, the state of the suction fitting 10 when the figure on right side in front (right figure) represents rotation.

The verticity that the suction fitting 10 of present embodiment is arranged in the situation of electric dust collector is improved, and therefore, the operability of electric dust collector is also improved.Aspect the raising of this verticity, the tube connector portion 12 and the position relationship between wheel installation portion 14 that form suction fitting 10 are very important.

First, the installation site of wheel installation portion 14 is described, this wheel installation portion 14 is fixed on the outer peripheral face (lower surface) of the downside of the second tube connector 22, but, as shown in Figure 11 A, the installation axis S1 (pivot center of wheel portion 13) consistent with the installation direction of wheel installation portion 14 becomes the axis forwards tilting along the fore-and-aft direction of tube connector portion 12.The inclined degree of this installation axis S1 is not particularly limited, but from the viewpoint of further raising operability, and preferably, the swept surface F of take is inclined to acute angle as benchmark.

Particularly, suction fitting 10 is being positioned under the state on swept surface F, the angle that installation axis S1 is become with respect to swept surface F is made as the installation shaft line angle θ 1 shown in Figure 11 A.Preferably, this installation shaft line angle θ 1 is at least acute angle (90 ° of less than), more preferably, and in the scope of 5 °～45 °.If installation shaft line angle θ 1 is acute angle, as shown in the right figure of Figure 12 A, Figure 12 B, by take the partial rotational (swing) of the wheel portion 13 that wheel installation portion 14 is center of rotation, the mode that wheel support body 32 is positioned at the position more forward than another wheel with a wheel in pair of wheels 31 tilts.For example, in the right figure of Figure 12 A, the mode that the wheel 31 that wheel support body 32 is positioned at the place ahead, right side with the wheel 31 in left side is positioned at rear tilts, and in the right figure of Figure 12 B, the mode that the wheel 31 that wheel support body 32 is positioned at the place ahead, left side with the wheel 31 on right side is positioned at rear tilts.

Here, as described above, wheel support body 32 rotates centered by the installation axis S1 of wheel installation portion 14, therefore, if take tube connector portion 12 as benchmark, wheel support body 32 with left and right arbitrarily wheel 31 forwards move mode carry out (two dimension) inclination in plane, and to be positioned at the wheel 31 in the place ahead, be positioned at below, the wheel 31 that is positioned at rear is positioned at the such form in top and carries out three-dimensional (three-dimensional) inclination.For example, in the right figure of Figure 12 A, the wheel 31 in left side forwards moves and wheel support body 32 tilts, and in the right figure of Figure 12 B, the wheel 31 on right side forwards moves and wheel support body 32 tilts.

On the other hand, as shown in Figure 12 A, Figure 12 B, while observing suction fitting 10 (observing the top view shown in Fig. 6) from top, if take wheel support body 32 as benchmark, the wheel 31 of the side in the left and right sides of this wheel support body 32 forwards moves, and tube connector portion 12 also tilts to the identical direction of the wheel 31 with having moved.For example,, in the right figure of Figure 12 A, when the wheel 31 in left side forwards moves and wheel support body 32 tilts, tube connector portion 12 tilts to the left, in the right figure of Figure 12 B, when the wheel 31 on right side forwards moves and wheel support body 32 tilts, tube connector portion 12 tilts to the right.

Here, wheel portion 13 is installed on the second tube connector 22, the second tube connectors 22 by wheel installation portion 14 and is connected in the first tube connector 21 in the mode that can rotate.So, be accompanied by the inclination of wheel support body 32 (wheel portion 13), while the second tube connector 22 tilts to rotate, the first tube connector 21 is followed the rotation of the second tube connector 22 and swings, thus the action of the second tube connector 22 passes to suction fitting main body 11.Its result, for example, in the right figure of Figure 12 A, suction fitting main body 11 is rotated to the left, and in the right figure of Figure 12 B, suction fitting main body 11 is rotated to the right, therefore can improve the operability of suction fitting 10.

Angle from user, first, as shown in Fig. 1 or Fig. 6, user makes the 3rd tube connector 23 rearward swing and (make it to topple over) to a certain degree from the state that erect to arrange (to the state of side oscillation), and makes the use state shown in its left figure that changes Figure 12 A, Figure 12 B into.Now, wheel support body 32 (wheel portion 13) and suction fitting main body 11 almost parallels, user makes suction fitting main body 11 from this state rotation.Now, user reverses the handle part of electric dust collector gently, thereby wheel support body 32 first tilts as shown in the right figure of Figure 12 A, Figure 12 B.Then, the tilting action of wheel support body 32 passes to the second tube connector 22 by wheel installation portion 14, thus, the second tube connector 22 is while tilting to rotate, therefore, the action of this three-dimensional further passes to suction fitting main body 11 by the first tube connector 21, its result, and suction fitting main body 11 is to the incline direction rotation of the second tube connector 22.So user can easily operate suction fitting 10.

When carrying out the rotation of suction fitting main body 11, as shown in the right figure of Figure 12 A, Figure 12 B, in the direction that will rotate, one end of suction fitting main body 11 is near a wheel 31 of wheel portion 13.Figure 12 A means the figure to anticlockwise, and the left end of suction fitting main body 11 is near the wheel 31 in left side.In addition, Figure 12 B means dextrorotary figure, and therefore, the right-hand member of suction fitting main body 11 is near the wheel 31 on right side.In other words, if wheel portion 13 is so that the mode rearward retreating with the wheel 31 of the contrary side of a side that will rotate moves, suction fitting main body 11 is to desirable direction rotation.

In addition, in the present embodiment, preferably, except limiting the inclination of above-mentioned wheel installation portion 14, limit and take the position of the wheel installation portion 14 that the 3rd tube connector 23 is benchmark.Particularly, as shown in Figure 11 A, Figure 11 B, the 3rd tube connector 23 can swing on the swaying direction M3 as fore-and-aft direction, therefore, if using the central axis of this swaying direction M3 as axis of oscillation S3, axis of oscillation S3 just becomes the axis that is positioned at left and right directions.Therefore, preferably, this axis of oscillation S3 of take is benchmark, and wheel installation portion 14 is set in to the position on the front than axis of oscillation S3.If wheel installation portion 14 arranges like this, the interval between wheel portion 13 and suction fitting main body 11 just can excessively not expand, and therefore, can utilize the inclination of wheel support body 32 that suction fitting main body 11 is rotated effectively.

In addition, preferably, except limiting the inclination and position of wheel installation portion 14, limit the second tube connector 22 with respect to the link angle of the first tube connector 21.Particularly, the same with the restriction of inclination that axis S1 is installed, suction fitting 10 is being positioned under the state of swept surface F, by by the second tube connector 22 with respect to the angle initialization of swept surface F in suitable scope, can limit in fact the link angle between the first tube connector 21 and the second tube connector 22.

Particularly, as shown in Figure 11 A, the face that the second tube connector 22 is rotated with respect to the first tube connector 21 is made as plane of rotation P0.And when the angle that plane of rotation P0 is become with respect to swept surface F is made as plane of rotation angle θ 0, preferably, this plane of rotation angle θ 0 is the acute angle larger than installation shaft line angle θ 1.

Thus, the second tube connector 22 becomes with respect to the link of the first tube connector 21 link of carrying out in the mode of tilted rearward, therefore,, when the inclination of wheel portion 13 is rotated the second tube connector 22, by the torque of rotating generation, be applied in the oblique upside of the first tube connector 21.The first tube connector 21 can swing at fore-and-aft direction (with reference to the swaying direction M4 in Figure 11 A) with respect to suction fitting main body 11, and can not move at left and right directions, therefore, the rotation of the second tube connector 22 is delivered to suction fitting main body 11 effectively, thereby suction fitting main body 11 is easily along left rotation and right rotation.

Here, limit the inclination of wheel installation portion 14 and limit the link angle between tube connector 21,22, also referring to the relation between the heeling condition of the second tube connector 21 and the heeling condition of wheel installation portion 14 is limited.That is, although wheel installation portion 14, the second tube connector 22 are all configured on fore-and-aft direction, wheel installation portion 14 is to tilt in its rear mode upward, and the second tube connector 22 is to tilt in its place ahead mode upward.

Therefore, as shown in Figure 11 B, while being pivot center S2 at the center that the second tube connector 22 is rotated with respect to the first tube connector 21, the direction of the installation axis S1 of the direction of this pivot center S2 and wheel installation portion 14 can be position relationship intersected with each other.And as shown in Figure 11 B, if the angle that pivot center S2 is become with respect to swept surface F is made as turning cylinder line angle θ 2, this turning cylinder line angle θ 2 is acute angles, more preferably in the scope of 5 °～45 °.

If the installation axis S1 of wheel installation portion 14 and the pivot center S2 of the second tube connector 22 intersect, as shown in the rotation direction M2 in Figure 11 B, be accompanied by the inclination of wheel portion 13, while the second tube connector 22 tilts to rotate efficiently.And although the second tube connector 22 and the first tube connector 21 are connected, the first tube connector 21 can be fixedly connected on suction fitting main body 11 as described above, or, as shown in Figure 11 A, also can, with respect to suction fitting main body 11, can centered by axis of oscillation S4, along swaying direction M4, swing.In other words, if observe from the first tube connector 21, can be that suction fitting main body 11 can swing at fore-and-aft direction with respect to the first tube connector 21.Therefore, by the swing on the swaying direction M4 of the first tube connector 21 generations and by the rotation on the rotation direction M2 of the second tube connector 22 generations, stack up and pass in the lump suction fitting main body 11, its result, suction fitting main body 11 is rotated efficiently.

In addition, the position relationship between the axis of oscillation S3 of the installation axis S1 of wheel installation portion 14, the pivot center S2 of the second tube connector 22 and the 3rd tube connector 23 can be described as follows.That is, axis S1 and pivot center S2 are installed and are positioned at same plane, this plane and axis of oscillation S3 quadrature.In other words, axis of oscillation S3 is equivalent to the normal that comprises the plane that axis S1 and pivot center S2 are installed.Here, axis of oscillation S3 does not directly intersect with installation axis S1 and pivot center S2, and therefore, axis of oscillation S3 is with the position in reversing between axis S1 and pivot center S2 is installed.

So, in the present embodiment, wheel support body 32 can be installed on the downside of the second tube connector 22 in tube connector portion 12 obliquely by wheel installation portion 14.Thus, the inclination of the rotation by the bond sites between swing, the first tube connector 21 and second tube connector 22 of the bond sites between suction fitting main body 11 and the first tube connector 21 and the wheel support body 32 (wheel portion 13) being caused by wheel installation portion 14, makes the wheel portion 13 that is arranged at the second tube connector 22 lower surfaces carry out in fact three-dimensional tilt.Therefore, by the inclination of wheel portion 13, by tube connector portion 12,11 rotations of suction fitting main body can be easily made, therefore, the operability of suction fitting 10 can be improved.

And in the present embodiment, wheel installation portion 14 has 2 torsionspring member 41A, 41B, therefore, by the inclination of wheel support body 32, can make suction fitting main body 11 stably rotate.For this point, on the basis of Figure 12 A, Figure 12 B, with reference to Figure 13 A, Figure 13 B, be specifically described.

In addition, the epimere figure of Figure 13 A is from forward observation wheel portion 13 resulting front views, and the hypomere figure of Figure 13 A observes the resulting front view of wheel portion 13 from rear.Epimere figure and hypomere figure only illustrate installation portion main body 42 for wheel installation portion 14, not shown torsionspring member 41A, 41B, installation axial region 43 etc.In addition, Figure 13 B is from the frame in left side in front, (center) and the torsionspring member 41A, the action of 41B of (right frame) during to right rotation when (left frame), straightaway while representing successively to anticlockwise, and the epimere figure in each frame represents to be positioned at the torsionspring member 41A at rear, the hypomere figure in each frame represents to be positioned at the torsionspring member 41B (with reference to Fig. 8, Fig. 9 and Figure 10) in the place ahead.

First, slotted hole 422 for spring is described.As shown in FIG. 13A, for the installation portion main body 42 of wheel installation portion 14, in inside, be provided with as described above spring framing mask 421, but this spring framing mask 421 is not the mode that covers the whole interior week of installation portion main body 42 to be arranged, but by forming slotted hole 422 for spring at left and right otch.If this spring is not taken in anything in installation portion main body 42 with slotted hole 422 be otch, if torsionspring member 41A, 41B are accommodated in installation portion main body 42, but axial region 43 is installed and is inserted installation portion main bodys 42, become the hole of the arcuation that the second arm 412 for torsionspring member 41A, 41B runs through.

Then, as shown in Figure 13 B, the torsionspring member 41A observing from rear side, the action of 41B are described.In addition, in the figure of Figure 13 B, with the single-point represented interval of ruling, show spring with the interval of the above-below direction of slotted hole 422, for the ease of diagram, to slotted hole 422 mark Reference numerals for each spring.

For example, as shown in the left figure in Figure 12 A, Figure 12 B, if suction fitting 10 straightawaies, as shown in the center of Figure 13 B (during straightaway), in the torsionspring member 41B in torsionspring member 41A in the wings and the place ahead, the first arm 411 all exposes and is positioned at assigned position (with reference to the hypomere figure of Figure 10) from installation portion main body 42, the second arm 412 spring with in slotted hole 422 and below spring framing mask 421 butts.In addition, the periphery butt in the first arm 411 of torsionspring member 41A and the left side of the second tube connector 22, the periphery butt on the first arm 411 of torsionspring member 41B and the right side of the second tube connector 22.

On the other hand, as shown in the right figure in Figure 12 A, when suction fitting main body 11 is rotated to the left, as shown in the left frame of Figure 13 B (to anticlockwise time), in torsionspring member 41A (epimere figure) in the wings, the second arm 412 is at spring with mobile from bottom to top in slotted hole 422, and the first arm 411 follows the rotation (to anticlockwise) of the second tube connector 22 from up to down to move.Under this state, torsionspring member 41A rotates (to anticlockwise) together with the second tube connector 22, and therefore, torsionspring member 41A does not produce torque.

With respect to this, in torsionspring member 41B (hypomere figure) forwardly, the first arm 411 follows the rotation (to anticlockwise) of the second tube connector 22 bottom-uply mobile, but the second arm 412 is positioned at spring not to be moved with the assigned position of slotted hole 422, with spring framing mask 421 butts of downside.That is, the second arm 412 plays a role as locating part, thus, at torsionspring member 41B, produces torque.Its result so that the second tube connector 22 from left to right mobile mode the second tube connector 22 is applied to power.

In addition, as shown in the right figure in Figure 12 B, when suction fitting main body 11 is rotated to the right, as shown in the right frame of Figure 13 B (to right rotation time), in torsionspring member 41A (epimere figure) in the wings, the first arm 411 follows the rotation (to right rotation) of the second tube connector 22 bottom-uply mobile, does not move, with spring framing mask 421 butts of downside but the second arm 412 is positioned at spring with the assigned position of slotted hole 422.Thus, at torsionspring member 41A, produce torque, therefore, so that the mode that the second tube connector 22 right-to-lefts move applies power to the second tube connector 22.In addition, the torsionspring member 41A of torsionspring member 41B when to anticlockwise is the same, rotates (to right rotation), and do not produce torque together with the second tube connector 22.

So the second tube connector 22 that, 2 torsionspring member 41A, 41B tilt to direction of rotation to following the rotation of left and right applies and makes it return to the such reaction force of original state (fore-and-aft direction).Therefore, suction fitting 10 can return to straightaway state after rotation to the left and right immediately, thereby can suppress suction fitting 10, shakes because of deadweight.Its result, can further improve the operability of suction fitting 10.

(receiving state of suction fitting)

Then,, with reference to Figure 14 A, Figure 14 B, Figure 15 and Figure 16, illustrate for suction fitting 10 is become to an example of the structure of receiving state from use state.

The suction fitting 10 of present embodiment is not only realized the operability improving while using, and also realizes the operability that improves the switching between receiving state and use state.Particularly, for example, as shown in Figure 14 A, Figure 14 B, list the suction fitting of present embodiment 10 is arranged on to the example in the situation of main part 51 of vertical electric dust collector, as shown in Figure 14 A, when suction fitting 10 is used, the mass axis Cb of the suction fitting 10 in figure shown in double dot dash line is positioned in wheel portion 13.With respect to this, as shown in Figure 14B, when suction fitting 10 is taken in, mass axis Cb is between suction fitting main body 11 and wheel portion 13.In addition, mass axis Cb during use than wheel portion 13 by rear.

Under use state, main part 51 is positioned at rear, and therefore, its center of gravity is positioned near the position by rear wheel portion 13 or than wheel portion 13.Thus, user easily makes wheel portion 13 tilt, and its result, further improves operability.On the other hand, under receiving state, user just makes main part 51 forwards move, and center of gravity is compared forwards when using and moved.Thus, can main part 51 be positioned in suction fitting 10 directly over realize stabilisation under such position relationship, therefore can take in vertical electric dust collector with stable state.In addition, even if be connected at suction fitting 10 under the state of tube connector etc. of Horizontal electronic dust catcher, the variation of this center of gravity is also identical.Therefore, if can change the structure of the center of gravity of suction fitting 10, the switching between receiving state and use state also becomes easily, thereby can further improve its operability.

Here, preferably, wheel portion 13 do not tilt as far as possible under receiving state (swing).Therefore, in the present embodiment, wheel portion 13 have can with the part of the 3rd tube connector 23 linkage 33 of butt engagingly.Particularly, as shown in Figure 14 A, under use state, linkage 33 is positioned at below, and now, the engaging between linkage 33 and the 3rd tube connector 23 is disengaged, the 3rd tube connector 23 rearward swings, and follows this swing, and the jut 231 that is arranged at the 3rd tube connector 23 forwards rotates.

On the other hand, as shown in Figure 14B, under receiving state, by the 3rd tube connector 23 is forwards swung, the swing of linkage 33 and the 3rd tube connector 23 is upwards pushed away linkedly.Now, as shown in figure 15, the holding section 331 of linkage 33 can engage with engaged part 232, this engaged part 232 is positioned at the periphery of the swing part of the 3rd tube connector 23, and as shown in the dotted line in Figure 14 B, the jut 231 that is arranged at the 3rd tube connector 23 rotates direction below in the past.Thus, as shown in figure 15, the upper surface 32a butt of jut 231 and wheel support body 32, therefore, tilting action that can limiting wheel portion 13.

Butt to jut 231 is specifically described, as described above, the 3rd tube connector 23 can swing at fore-and-aft direction (swaying direction M3, with reference to Figure 11 A) with respect to the second tube connector 22, and be provided with jut 231, this jut 231, centered by axis of oscillation S3 (with reference to Figure 11 A, Figure 11 B) now, rotates with together with the swing of the 3rd tube connector 23.Axis of oscillation S3 is positioned at left and right directions, and therefore, jut 231 rotates at fore-and-aft direction.Therefore,, when taking in, as shown in figure 15, by the 3rd tube connector 23 is forwards swung, can make jut 231 be connected to the upper surface 32a of wheel support body 32.Thus, utilize the friction between jut 231 and upper surface 32a, the inclination of limiting wheel portion 13 (wheel support body 32).

So, if suction fitting 10 has the jut 231 of linkage 33 and the 3rd tube connector 23, under use state, butt between jut 231 and wheel portion 13 is disengaged, therefore, if the second tube connector 22 (and the 3rd tube connector 23) is rotated centered by pivot center S2, wheel portion 13 can change in the mode tilting with respect to the position of suction fitting main body 11.

In other words, under use state, when the second tube connector 22 rotates centered by pivot center S2, the installation site of wheel portion 13 does not change, the wheel 31 that is positioned at the direction identical with the direction of rotating centered by pivot center S2 approaches suction fitting main body 11, is positioned at the wheel 31 of the direction of the opposite direction rotating centered by pivot center S2 away from suction fitting main body 11.

On the other hand, under receiving state, the 3rd tube connector 23 and linkage 33 fasten, thus, the swing of restriction the 3rd tube connector 23, and the jut 231 of the 3rd tube connector 23 is connected to wheel portion 13, thus the tilting action of wheel portion 13 is restricted.

And, in the present embodiment, as shown in figure 16, on linkage 33, being provided with the holding section 332 for engaging with the second tube connector 22, the engaged part 222 that is sticked in this holding section 332 also can be arranged at the second tube connector 22.In the example shown in Figure 16, in the part of linkage 33, be provided with the holding section 332 of convex, on the second tube connector 22, be provided with and corresponding, hook-shaped engaged part 222, this holding section 332.Thus, by action bars mechanism 33, linkage 33 is not only engaged with the 3rd tube connector 23, also engage with the second tube connector 22, therefore, the 3rd tube connector 23 and the second tube connector 22 are all fixed up.Its result, also can stably keep the upper surface 32a of wheel support body 32 and the butt state between jut 231, therefore, as long as inoperation linkage 33 just can stably maintain the restriction to the tilting action of wheel portion 13.

(variation)

The suction fitting 10 of present embodiment has as the 3rd tube connector 23 that forms the tubular element of tube connector portion 12, but the present invention is not limited to this, also can there is no the 3rd tube connector 23.As described above, the contribution of the operability of the suction fitting 10 under the second tube connector 22, wheel portion 13 and 14 pairs of use states of wheel installation portion is larger, and the first tube connector 21 is for linking the tubular element of the second tube connector 22 and suction fitting main body 11.Therefore, the 3rd tube connector 23 is not the necessary structure of tube connector portion 12.

In addition, the concrete structure of wheel installation portion 14 is not limited to present embodiment illustrated torsionspring member 41A, 41B, installation portion main body 42, the structure of axial region 43 and axial region connecting elements 44 formations is installed, in order to make wheel portion 13 carry out three-dimensional tilt, wheel portion 13 is installed on to the downside of the second tube connector 22.In addition, the installation portion main body 42 of wheel installation portion 14 is made as one with the central portion of wheel support body 32, but also installation portion main body 42 can be arranged independently with respect to wheel support body 32.

And, as for suction fitting 10 is switched to the structure (switching device shifter) of receiving state from use state, used in the present embodiment linkage 33, but be not limited to this, also can be other mechanical switching device shifter, can be also the switching device shifter moving by electric control.

(embodiment 2)

In the present embodiment, as illustrated suction fitting 10 electric dust collector of applying of above-mentioned embodiment 1, exemplified vertical electric dust collector and be specifically described.

As shown in figure 17, the vertical electric dust collector 50 of present embodiment has main part 51, handle 52, Handle axis 53 and suction fitting 10.

Main part 51 is roughly cylindric, on top, is provided with dust storage chamber, in lower set, not shown suction motor etc. is housed.Suction fitting 10 is connected in main part 51, and the dust of coming from suction fitting 10 suctions by the action of suction motor etc. is accumulated in the dust storage chamber of these main part 51 inside.In addition, be provided with handle 54 for carrying on the top of main part 51, user can carry vertical electric dust collector 50 with handle 54 by controlling this carrying.

In addition, on the top of main part 51, by Handle axis 53, be provided with handle 52.This handle 52 is the handle parts of controlling for user in use, forms the oval ring-type with the average matched size of hand size.

When using vertical electric dust collector 50, first, user pulls out power line the attaching plug on top is inserted to outlet from main part 51 in use, by operating power switch, switches on power.Thus, suction motor action also produces suction forces at the suction inlet 111 of suction fitting 10, thereby ground dust suction is come and is accumulated in the dust storage chamber in main part 51.User is movement vertical type electric dust collector 50 on the ground by controlling handle 52, thereby can change the region on the ground that will clean.

In the present embodiment, the operability of suction fitting 10 is improved, and therefore, even when user wants to make vertical electric dust collector 50 to carry out less rotation, also without significantly reversing handle 52, just can easily make suction fitting 10 rotations.Therefore, the burden of user's wrist can be alleviated, thereby operability can be further improved.

In addition, the concrete structure of the vertical electric dust collector 50 shown in Figure 17, that is, the structure of main part 51, handle 52 etc. is not particularly limited, and can suitably apply the known various structures in field of vertical electric dust collector.

(embodiment 3)

In above-mentioned embodiment 2, the electric dust collector as the illustrated suction fitting 10 of the above-mentioned embodiment 1 of application, has exemplified vertical type dust collector, but in present embodiment 3, exemplifies Horizontal electronic dust catcher and is specifically described as the example of electric dust collector.

The Horizontal electronic dust catcher 60 of present embodiment has main body of dust collector 61, suction hose 62, nearly body operating portion 63, suction extension tube 64 and suction fitting 10.

Main body of dust collector 61 has electric blower, dust storage chamber and power line etc., and handling are connected with one end of suction hose 62 freely.The other end at suction hose 62 is provided with nearly body operating portion 63, and one end handling of suction extension tube 64 are connected in the top of this nearly body operating portion 63 freely.And suction fitting 10 handling are installed on the other end of suction extension tube 64 freely.In addition, below nearly body operating portion 63, handling are provided with suction nozzle with battery unit 65 freely, and this suction nozzle with battery unit 65 can replace aspirating the top that extension tube 64 is installed on nearly body operating portion 63.

In the inside of main body of dust collector 61, be provided with suction motor and dust storage chamber, utilize the action of suction motor to produce suction force, and at the suction inlet 111 of suction fitting 10, produce suction force via suction hose 62, suction extension tube 64.In addition, in the inside of main body of dust collector 61, take in the power line that can pull out.

When using Horizontal electronic dust catcher 60, first, user pulls out power line the attaching plug on top is inserted to outlet from main body of dust collector 61 in use, then operates nearly body operating portion 63, thereby connects the power supply of main body of dust collector 61.Thus, the action by suction motor produces suction forces at suction fitting 10, and therefore, ground dust is sucked and gathers the dust storage chamber in main body of dust collector 61 via suction extension tube 64, suction hose 62.User is the position of mobile suction fitting 10 on the ground by controlling nearly body operating portion 63, thereby can change the region on cleaning ground.In addition, in the situation that change the position of cleaning, by pulling suction hose 62, main body of dust collector 61 is moved on the ground.

In the present embodiment, the operability of suction fitting 10 is improved, and therefore, even when user wants to make suction fitting 10 to carry out less rotation, also without significantly reversing nearly body operating portion 63, just can easily make suction fitting 10 rotations.Therefore, the burden of user's wrist can be alleviated, thereby operability can be further improved.

In addition, on main body of dust collector 61, be provided with not shown handle, can mention main body of dust collector 61 and move it by enough this handles.In addition, be not only ground, in the situation that want to sweep the narrow zone in the gap etc. of corner within doors, furniture etc., pull down suction extension tube 64 or suction fitting 10, replace and install suction nozzle with battery unit 65 and just can sweep.

In addition, concrete structure to the Horizontal electronic dust catcher 60 shown in Figure 18,, the structure of main body of dust collector 61, suction hose 62, nearly body operating portion 63, suction extension tube 64 and suction nozzle with battery unit 65 etc. is not particularly limited, and can suitably apply the known various structures in field of Horizontal electronic dust catcher.

In addition, the present invention is not limited to the record of above-mentioned embodiment, can in the scope shown in technical scheme, carry out various changes, by different embodiments, a plurality of variation separately disclosed technical scheme suitably combine and the embodiment that obtains is also included in the technical scope of the present invention.

In addition, as those skilled in the art, can from above-mentioned explanation, find many improvement of the present invention, other embodiment.Therefore, above-mentioned explanation only should be interpreted as illustration, take and guides those skilled in the art to draw to carry out optimum embodiment of the present invention to provide as object.In the situation that not departing from spirit of the present invention, can substantially change the details of its structure and/or function.

utilizability in industry

The present invention can suitably be applied to electric dust collector with the field of suction fitting, and also can suitably be applied to widely to use the field of the electric dust collector of this suction fitting.

description of reference numerals

10 electric dust collector suction fittings

11 suction fitting main bodys

12 tube connector portions

13 wheel portions

14 wheel installation portions

21 first tube connectors

22 second tube connectors

23 the 3rd tube connectors

31 wheels

32 wheel support bodies

The upper surface of 32a wheel support body

33 linkages

41A, 41B torsionspring member

111 suction inlets

222 engaged parts

231 juts

232 engaged parts

331 holding sections

332 holding sections

Cb mass axis

F swept surface

P0 plane of rotation

S1 installs axis

S2 pivot center

S3 axis of oscillation

θ 0 plane of rotation angle

θ 1 installation shaft line angle

θ 2 turning cylinder line angles

Claims (13)

1. an electric dust collector suction fitting, is characterized in that,

Have:

Suction fitting main body, it has suction inlet at lower surface;

Tube connector portion, it is connected with the rear portion of this suction fitting main body; And

The wheel portion of the use of travelling, it is arranged at this tube connector portion,

Above-mentioned tube connector portion at least consists of the first tube connector and the second tube connector, and one end of this first tube connector is connected with the rear portion upside of above-mentioned suction fitting main body, and the other end of this first tube connector links the second tube connector freely rotating around axis direction,

Above-mentioned wheel portion at least consists of wheel support body and pair of right and left wheel, and this wheel support body supports above-mentioned wheel at two ends in the revolvable mode of above-mentioned wheel,

Also there is wheel installation portion, itself so that above-mentioned wheel support physical efficiency take the central portion of this wheel support body and this wheel support body be installed on to the downside of above-mentioned the second tube connector as the mode that fulcrum carries out tilting action.

2. electric dust collector suction fitting according to claim 1, is characterized in that,

Above-mentioned wheel installation portion to be can make above-mentioned wheel portion be installed on along the position of this second tube connector lower surface so that the mode of rotating centered by axis to be installed, and this installation axis is that the fore-and-aft direction along above-mentioned tube connector portion rolls forward oblique axis.

3. electric dust collector suction fitting according to claim 2, is characterized in that,

Above-mentioned wheel installation portion has torsionspring member, and the second tube connector that this torsionspring member is used for tilting to following the inclination of above-mentioned wheel support body is to a side application of force contrary to incline direction.

4. according to the electric dust collector suction fitting described in claim 2 or 3, it is characterized in that,

The angle that above-mentioned installation axis becomes with respect to swept surface, installation shaft line angle θ 1 is acute angle.

5. electric dust collector suction fitting according to claim 4, is characterized in that,

As follows above-mentioned the first tube connector and above-mentioned the second tube connector are linked up: when the face that above-mentioned the second tube connector with above-mentioned the first tube connector link is rotated is made as plane of rotation, the angle that this plane of rotation becomes with respect to above-mentioned swept surface, plane of rotation angle θ 0 becomes the large acute angle than above-mentioned installation shaft angle θ 1.

6. according to the electric dust collector suction fitting described in any one in claim 2～5, it is characterized in that,

When the center that above-mentioned the second tube connector is rotated with respect to above-mentioned the first tube connector is made as pivot center,

The direction of the direction of this pivot center and above-mentioned installation axis is in position relationship intersected with each other.

7. electric dust collector suction fitting according to claim 6, is characterized in that,

The angle that above-mentioned pivot center becomes with respect to above-mentioned swept surface, turning cylinder line angle θ 2 in the scope of 5 °～45 °,

Above-mentioned installation shaft line angle θ 1 is in the scope of 5 °～45 °.

8. according to the electric dust collector suction fitting described in any one in claim 1～7, it is characterized in that,

Above-mentioned tube connector portion also has the 3rd tube connector, and the 3rd tube connector be connected in the other end of above-mentioned the second tube connector at the other end of above-mentioned the second tube connector in the mode that can swing at fore-and-aft direction,

The residing position of above-mentioned wheel installation portion of above-mentioned the second tube connector than the position of the axis of oscillation of above-mentioned the 3rd tube connector on the front.

9. according to the electric dust collector suction fitting described in any one in claim 1～8, it is characterized in that,

Can change above-mentioned wheel portion with respect to the relative position of above-mentioned suction fitting main body, so that above-mentioned electric dust collector is being installed on electric dust collector and is aspirating dust with suction fitting, even the used time, above-mentioned electric dust collector is positioned in above-mentioned wheel portion with the mass axis of suction fitting or the rear of above-mentioned wheel portion, and when taking in, above-mentioned electric dust collector with the mass axis of suction fitting between above-mentioned suction fitting main body and above-mentioned wheel portion.

10. electric dust collector suction fitting according to claim 9, is characterized in that,

Above-mentioned wheel portion has linkage, by operating this linkage, makes above-mentioned wheel portion with respect to the change in location of above-mentioned suction fitting main body.

11. according to the electric dust collector suction fitting described in claim 9 or 10, it is characterized in that,

Above-mentioned the 3rd tube connector has jut, and this jut, centered by the axis of oscillation of the 3rd tube connector, rotates along with the swing of the 3rd tube connector,

When carrying out above-mentioned taking in, by the swing of above-mentioned the 3rd tube connector, the upper surface butt of above-mentioned jut and above-mentioned wheel support body, thus limit the tilting action of above-mentioned wheel portion.

12. electric dust collector suction fittings according to claim 10, is characterized in that,

On above-mentioned linkage, be provided with holding section, this holding section is by the operation of above-mentioned linkage and can be connected to above-mentioned the 3rd tube connector,

The engaged part of making the shape corresponding with this holding section with the position of above-mentioned holding section butt in above-mentioned the 3rd tube connector.

13. 1 kinds of electric dust collectors, is characterized in that,

There is the electric dust collector suction fitting described in any one in claim 1～12.