CN104257326A - Electric Vacuum Cleaner - Google Patents
Electric Vacuum Cleaner Download PDFInfo
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- CN104257326A CN104257326A CN201410309511.1A CN201410309511A CN104257326A CN 104257326 A CN104257326 A CN 104257326A CN 201410309511 A CN201410309511 A CN 201410309511A CN 104257326 A CN104257326 A CN 104257326A
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- extension tube
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Abstract
The invention provides an electric vacuum cleaner with a cheap, lightweight and high rigid extension tube. The electric vacuum cleaner (1) is provided with suction members (6, 7), an electric blower (2b), and air channels (T1,T2) formed between the suction members (6, 7) and the electric blower (2b), wherein at least parts of the air channels (T1,T2) are formed by the cylindrical extension tube (5). The electric vacuum cleaner is characterized in that: at least part for forming the extension tube (5) is made of a carbon fiber contained resin containing a carbon fiber and a thermoplastic resin, the amount of the carbon fiber contained in the carbon fiber contained resin is more than 5% by weight and below 15% by weight in the carbon fiber contained resin, at least one part for forming the extension tube (5) is formed by processing the carbon fiber contained resin by blow molding shaping or injection molding shaping.
Description
The present invention is the applying date is on February 6th, 2012, application number be 201210025094.9, denomination of invention is the divisional application of the application of " electric dust collector ".
Technical field
The present invention relates to electric dust collector.
Background technology
At present, electric dust collector is widely used in family etc.This electric dust collector possesses: the suction fitting attracting dust etc.; And to be connected with this suction fitting and for the dust etc. attracted from above-mentioned suction fitting being attracted to the electric blower in electric dust collector.In addition, the part being usually formed at the ventilating duct between suction fitting and electric blower is made up of the extension tube of tubular.
Extension tube as this tubular widely uses resinous extension tube.But when using only by the extension tube that resin is formed, the preponderance of extension tube, needs undue burden during operation electric dust collector.Therefore, describe in patent document 1 for the purpose of lightness, make extension tube contain the technology of carbon fibre.
Prior art document
Patent document 1: Japanese Unexamined Patent Publication 9-24003 publication
But, in the technology described in above-mentioned patent document 1, do not record the concrete scope about carbon fibre amount.Therefore, due to the amount of carbon fibre, the preponderance ground of extension tube becomes heavy, and manufacturing cost exceedingly increases.In addition, when the amount of carbon fibre is very few, sometimes can not guarantee the intensity that extension tube is usually required.Namely the item, only described in patent document 1, it is extremely difficult for solving these problems.
Summary of the invention
The object of the present invention is to provide and a kind ofly possess cheapness, the light-duty and electric dust collector of the extension tube of high rigidity.
The present inventor, in order to solve above-mentioned problem, makes great efforts found that of research, by the parts at least partially forming extension tube can be solved above-mentioned problem with the thermoplastic resin formed of the carbon fibre containing estimated rate, thus completes the present invention.
Effect of the present invention is as follows.
According to the present invention, can provide and possess cheapness, the light-duty and electric dust collector of the extension tube of high rigidity.
Accompanying drawing explanation
Fig. 1 is the stereoscopic figure of the entirety of the electric dust collector representing an embodiment of the invention.
Fig. 2 (a) is the side view representing the state after extension tube being reduced, and (b) is the side view representing the state after extension tube being stretched, and (c) is the upward view representing the state after extension tube being stretched.
Fig. 3 is the exploded perspective view of the outer tube of extension tube.
Fig. 4 is the figure representing the support component that outer tube is equipped with, and (a) is exploded perspective view, and (b) is stereogram.
Fig. 5 is the exploded perspective view of the interior pipe of extension tube.
Fig. 6 (a) is the figure observing extension tube from end side, and (b) is the figure observing extension tube from another side.
Fig. 7 (a) is the longitudinal terminal surface figure of extension tube, and (b) is the amplification longitudinal terminal surface figure of the other end of extension tube.
Fig. 8 (a) is the stereogram of the extension tube of state after reducing, and (b) is the stereogram of the extension tube of partly having an X-rayed upper cover and cap assembly.
Fig. 9 (a) is the stereogram of the configuration relation representing lower cover and sliding part, b () is the top view of the flat cable representing the state after extension tube being reduced, c () is its side view, (d) is the partial side view of the flat cable representing the state after extension tube being stretched.
Figure 10 is the curve map schematically showing the thickness of situation after the amount of carbon fibre is changed and the relation of bending strength.
Figure 11 be pattern represent the figure of situation when utilizing injection molding forming to manufacture extension tube.
Figure 12 be pattern represent the figure of situation when utilizing blow molding to manufacture extension tube.
In figure:
1-electric dust collector, 2-main body of dust collector, 2b-electric blower, 5-extension tube, 6-the second suction fitting (suction fitting), 7-the first suction fitting (suction fitting), 10-outer tube, 11-outer tube body, 12-lower cover (insulative resin parts), 17-energising terminal (conductive component), 13-upper cover (cap assembly), 15-support component, 15d, 15e-seal member, 17, 27-energising terminal, 20-interior pipe, 21-interior tube body, 22-matrix part (insulative resin parts), 23-cap assembly, C-flat cable (administration of power supply), T1-ventilating duct, T2-ventilating duct, W1-conductor wire (administration of power supply).
Detailed description of the invention
Below, be suitably described for implementing mode of the present invention (present embodiment) with reference to accompanying drawing, but present embodiment being not limited to following content, can at random carrying out changing and implementing in the scope of harmless purport of the present invention.
(1. the overall structure of electric dust collector)
As shown in Figure 1, the structure of electric dust collector 1 possesses main body of dust collector 2, hose sections 3, the operation pipe 4 being provided with console switch SW etc. on hand, the extension tube 5 arranged elastically, the second suction fitting 6 and the first suction fitting 7 as suction fitting.Wherein, in the present embodiment, extension tube 5 is made up of outer tube 10 and interior pipe 20, the outer tube body 11 (with reference to Fig. 2 (b)) forming outer tube 10 and the interior tube body 21 (with reference to Fig. 2 (b)) forming interior pipe 20 are formed by the thermoplastic resin (such as, polypropylene, ABS resin) containing (comprising) carbon fibre.
The shell of main body of dust collector 2 is covered by upper casing and lower casing.Upper casing is positioned at side more top than the substantial middle of above-below direction, lower casing be positioned at than above-below direction substantial middle on the lower.Be equipped with in the inside of main body of dust collector 2 and produce the electric blower 2b of attraction, the dust collecting part etc. of dust that folding and unfolding is gathered by the attraction of this electric blower 2b, by operating etc. the SW of console switch on hand of operation pipe 4, the power of carrying out the running of electric blower 2b switches or is arranged on the break-make etc. of the not shown power brush on the first suction fitting 7.Dust collecting part is positioned at the front side (being formed with the side of connector 2a) of main body of dust collector 2.Being formed in the front side of upper casing can the lid of opening and closing.Therefore lid openedly and closedly can close the top of dust collecting part.Operation pipe 4 until the other end be connected with hose sections 3 is formed as cylindrical shape, and is formed with handle from the one end is connected with extension tube 5, and this handle extends from the end side branch be connected with extension tube 5 relative to the part of cylindrical shape.Console switch SW is formed on handle on hand.In addition, in handle, be configured with the electrical mounting device of console switch SW on hand.
In addition, when mentioning the direction in each portion in the following description, along the not shown ventilating duct leading to main body of dust collector 2 from the first suction fitting 7, using the side near main body of dust collector 2 as one end (end side), side is in contrast described as the other end (another side).
One end of hose sections 3 is to be connected with the connector 2a of main body of dust collector 2 with the mode that the dust collecting part of main body of dust collector 2 is communicated with.In addition, the other end of hose sections 3 is connected with one end of operation pipe 4.On operation pipe 4, except being provided with the above-mentioned SW of console switch on hand, the not shown opening portion connecting extension tube 5 is also provided with the not shown power supply terminal of powering from main body of dust collector 2.This power supply terminal connects the energising terminal 17 (with reference to Fig. 2 (a)) as conductive component being arranged on one end of the outer tube 10 of extension tube 5.
As mentioned above, extension tube 5 possesses outer tube 10 and interior pipe 20, as shown in Fig. 2 (b), within an end of pipe 20 be inserted into the other end 11c of outer tube 10 thus the mode that outer tube 10 is communicated with ventilating duct T1, T2 of interior pipe 20 links.
As shown in Fig. 2 (a) (b), extension tube 5 is capable of expansion and contraction, is sealed between outer tube 10 and interior pipe 20 by seal member 15d, the 15e (with reference to Fig. 3, Fig. 4 (a)) with elasticity and electric conductivity with airtight conditions.In addition, the detailed construction about extension tube 5 will be described below.
As shown in Figure 1, the suction fitting that the second suction fitting 6 is releasably connected with the other end 20a of pipe 20 in extension tube 5, its other end 6a releasably connects the first suction fitting 7.Second suction fitting 6 can work as the suction fitting sucking dust individually by pulling down the first suction fitting 7 from its other end 6a.Second suction fitting 6 also can detachably be connected between the outer tube 10 of extension tube 5 and the other end 4a of operation pipe 4.But, the optional structure of the second suction fitting 6.
First suction fitting 7 is the suction fittings be connected with the other end 6a of the second suction fitting 6, below (with cleaning in the face of the face of standing erect) have not shown suction inlet.In addition, the first suction fitting 7 also can use relative to the other end 4a connection of the other end 20a of pipe 20 in extension tube 5 or operation pipe 4.
First suction fitting 7 is provided with not shown power brush.This power brush comprises to be scraped into the rotary cleaning body of the dust of the floor as cleaning face etc. and the motor of this rotary cleaning body of driving and forms.
In the present embodiment, be configured to supply by hose sections 3, operation pipe 4, extension tube 5, second suction fitting 6 electric power that the motor to this first suction fitting 7 supplies from main body of dust collector 2.Detailed content about the structure of the administration of power supply be arranged in extension tube 5 etc. will be described below.
Extension tube 5 is described above, and the outer tube body 11 (with reference to Fig. 2 (b)) forming outer tube 10 and the interior tube body 21 (with reference to Fig. 2 (b)) forming interior pipe 20 are formed by the thermoplastic resin containing carbon fibre.Namely, formed by the light-duty and thermoplastic resin containing carbon fibre of high strength as the outer tube body 11 of the main composition parts of extension tube 5 and interior tube body 21.
In addition, extension tube 5 has administration of power supply (the flat cable C of outer tube 10 described later etc. (with reference to Fig. 9 (b)) for carrying out powering to the first suction fitting 7 in inside.
In addition, when being equipped with second suction fitting 6 between extension tube 5 and the first suction fitting 7, the electric power supplied from main body of dust collector 2 is fed into the first suction fitting 7 from extension tube 5 by the not shown conductive component that the second suction fitting 6 is equipped with.When extension tube 5 and the first suction fitting 7 can directly be electrically connected, do not need the conductive component of the second suction fitting 6.
As shown in Figure 3, outer tube 10 mainly possesses: cylindric outer tube body 11; Be assemblied in the lower cover 12 as insulative resin parts on the top 11a2 of the stem portion 11a of outer tube body 11; And, the upper cover 13 as cap assembly on stem portion 11a is assemblied in the mode covering lower cover 12.
Outer tube body 11 is formed by injection molding forming described later or blow molding, is formed with pipe 20 (with reference to Fig. 5) in folding and unfolding slidably and the ventilating duct T1 be communicated with interior pipe 20 in inner side.
Outer tube body 11 has stem portion 11a, a diameter end 11b less than this stem portion 11a and the diameter the other end 11c larger than stem portion 11a.
Stem portion 11a has the thinner wall section becoming thin-walled compared with an end 11b and the other end 11c.In the present embodiment, the sidepiece 11a1 (length direction pars intermedia) of stem portion 11a is thinner wall section, realizes the lightness of outer tube body 11.In the present embodiment, the thickness of thinner wall section (difference of external diameter and internal diameter) is made to be 1.2mm ± 0.2mm, thinner than the thickness (about 2mm) of the existing extension tube be shaped with polypropylene 100%.
In addition, thinner wall section is not limited to the sidepiece 11a1 being formed in stem portion 11a, such as, also other parts of stem portion 11a can be formed as thin-walled, and an end 11b or the other end 11c partly can be made thin-walled and formed.
The top 11a2 of stem portion 11a is formed the tabular surface S1 of mounting lower cover 12.On the 11a2 of top, be arranged in the prominent part of rib 11d in the mode of clamping this tabular surface S1 from both sides.The lower edge 13d of upper cover 13 can coordinate with rib 11d, when assembling upper cover 13, being engaging in the notch portion 13e of upper cover 13, top 11a2 positions upper cover 13 by separating the projecting engaging portion 11e in predetermined space ground on the extended direction of rib 11d.
As shown in Fig. 6 (a), an end of outer tube body 11 is formed as roughly cylindric, the not shown opening portion set by the other end of update pipe 4 (with reference to Fig. 1, identical below) and can being connected with operation pipe 4.
As shown in Figure 3, at one end the upper periphery face of portion 11b is formed with recess 11b1.The not shown connection hook be arranged on operation pipe 4 coordinates with this recess 11b1.
In addition, as shown in Fig. 2 (a), (b), at one end the top of portion 11b is configured with energising terminal 17,17 (only illustrating a side in the drawings).On this energising terminal 17,17 attended operation pipe 4 opening portion on set not shown terminal.Thus, electric power is supplied from operation pipe 4 to the outer tube 10 of extension tube 5.
The other end 11c of tube body 11 is outside equipped with the support component 15 of pipe 20 in supporting sliding freely.Support component 15 possesses the frame portion 15a of ring-type, the component 15b remaining on the ring-type on this frame portion 15a, the sealing support portion 15c being configured in the end side of frame portion 15a and seal member 15d, 15e and forms.
As shown in Fig. 4 (a), the frame portion 15a of ring-type possesses department of assembly 151 and maintaining part 152.Department of assembly 151 has the outer shape corresponding with the inner surface of the opening 11c2 of the other end 11c of outer tube body 11, and is fixed on the inner surface of opening 11c2.
The guiding rib 151a of the slip for carrying out interior pipe 20 is swimmingly formed at the inner surface of department of assembly 151.
In addition, the insertion portion 151b supplying the sliding part described later 25 of interior pipe 20 and sliding closure 28 (with reference to Fig. 5,7 (a) (b)) to insert is formed in the upper end of department of assembly 151.
Maintaining part 152, in annulus frame-shaped, is integrally formed in one end of department of assembly 151.Component 15b can be outer movably along the vertical direction and remain in this maintaining part 152.Be formed with inserting hole 152a in the bottom of maintaining part 152, this inserting hole 152a inserts for the cooperation teat 153a be formed on component 15b.Be formed with frame-shaped portion 152b in the upper end of maintaining part 152, this frame-shaped portion 152b inserts for the sliding part described later 25 (with reference to Fig. 5, Fig. 9 (a)) of interior pipe 20.
Component 15b is that lengthwise is circular, has not shown gap so that fitted in maintaining part 152 between the upper and lower side of the maintaining part 152 of the frame portion 15a of ring-type.Thus, component 15b can utilize this gap to move in the vertical direction.The cooperation teat 153a of the inserting hole 152a being inserted into maintaining part 152 is provided with in the bottom of component 15b.This cooperation teat 153a has under the state that component 15b is afterburning upward relative to maintaining part 152, the size outstanding to the inner side of maintaining part 152 by above-mentioned inserting hole 152a, coordinate teat 153a by outstanding like this and can coordinate with the groove 21d (with reference to Fig. 2 (c), identical below) of not shown pipe 20 of the inner side being positioned at maintaining part 152.
As shown in Fig. 7 (b), coordinating the inner side of teat 153a to be formed with spring supporting portion 153c, on this spring supporting portion 153c, between the inner surface of outer tube 10 (outer tube body), be provided with not shown helical spring compressively.
In addition, as shown in Fig. 4 (a), be formed with the spring 153b to component 15b tabular afterburning upward in the upper end of component 15b.Therefore, component 15b usually by these helical springs and spring 153b afterburning upward, make to remain coordinate teat 153a by above-mentioned inserting hole 152a the state outstanding to the inner side of maintaining part 152.
As shown in Fig. 3, Fig. 7 (b), above this component 15b, between the other end 13c of upper cover 13, be equipped with slide unit 14.Slide unit 14 is by the opening 13f of upper cover 13 and can moving axially along outer tube 10 by the operation of people, slide is carried out towards another side by slide unit 14, end 14c enters the top of component 15b, resists the active force of above-mentioned helical spring and spring 153b formation and is depressed downwards by component 15b.Namely, by carrying out slide to another side to slide unit 14, the cooperation teat 153a coordinated with the groove 21d of interior pipe 20 departs from groove 21d, can remove the cooperation coordinating teat 153a relative to groove 21d.Thus, interior pipe 20 is removed relative to the fixing of outer tube 10, thus interior pipe 20 can slide mobile relative to outer tube 10.
Sealing support portion 15c is circular parts, electric in order to carry out effectively removing of electrostatic described later, and by the material with electric conductivity such as metal or thermoplastic resin formed containing carbon fibre, the other end 11c of tube body 11 outside, contacts with inner surface and is fixed.Be formed with the recess 154 of fitting tight parts 15d in one end of sealing support portion 15c, be formed with the recess 155 of fitting tight parts 15e at the other end.
Seal member 15d, 15e by have elasticity and in order to carry out electrostatic described later the material effectively except electricity with electric conductivity, such as make to have the material that flexible material contains metallic fiber or electroconductive particle etc. and form.The stem portion 21a (with reference to Fig. 5) of interior pipe 20 is inserted in the inner side of seal member 15d, 15e.Thus, being sealed by seal member 15d, 15e between ventilating duct T1, T2 of outer tube 10 and interior pipe 20.
At this, because sealing support portion 15c and seal member 15d, 15e all have electric conductivity, therefore the outer tube body 11 of outer tube 10 and the interior tube body 21 of interior pipe 20 by these sealing support portion 15c and seal member 15d, 15e with the stateful connection conducted.
In the present embodiment, one or both of tube body 11 and interior tube body 21 outside, be provided with not shown having remove electrostatic function as the de-power unit part except electrical mechanisms.As de-power unit part, can use can in atmosphere except electric removes electric felt or metallic fiber etc. while such as carrying out corona discharge, and self can to have except the rubber-like of electric effect or EVA (ethylene-vinyl acetate copolymer) etc. by making seal member 15d, 15e and the material being mixed with interfacial agent is formed, by seal member 15d, 15e except electricity.
In addition, also can be configured to, the not shown holding wire etc. with electric conductivity be communicated with main body of dust collector 2 side is set, carry out except electricity to the mode that this holding wire discharges to make electrostatic.
As shown in Figure 3, lower cover 12 is the parts of the elongated concavity above formed by resins such as the material such as polypropylene with insulating properties, is positioned on tabular surface S1 and covers on stem portion 11a in the mode of the inner side embedding the rib 11d of the top 11a2 of stem portion 11a.Namely, lower cover 12 covers on the top 11a2 of the all-round scope of the outer peripheral face of the other end of discontented extension tube 5 and stem portion 11a (being equivalent to the said outer tube of claim 3).
The substantially central portion of the length direction in the recess of lower cover 12, is provided with the other end C1 of the flat cable C forming administration of power supply.
Flat cable C has flexibility, be configured to one end C2 extend along recess to end side after, turn back to another side with U-shaped.
Between this lower cover 12 and upper cover 13 (on lower cover 12), as shown in Fig. 8 (b), Fig. 9 (a) ~ (c), be arranged on the sliding part 25 on interior pipe 20 and configure movably along the length direction of lower cover 12.As shown in Fig. 9 (b) (c), at the end C2 turned back of an end electrical connection flat cable C of sliding part 25.Thus, as shown in Fig. 9 (c) (d), when extension tube 5 is stretched, flat cable C follows shifting ground interior pipe 20 and moves relative to the slip of outer tube 10.
Be provided with terminal base 16 at one end 12b of lower cover 12, this terminal base 16 is provided with metal energising terminal 17.Energising terminal 17 as in Fig. 3 with single dotted broken line pattern represent, be electrically connected with the other end C1 of flat cable C by conductor wire W1.
Namely, energising terminal 17 be supported on outer tube body 11 by the lower cover 12 of insulating properties, configure with the state do not conducted with outer tube body 11.
Upper cover 13 is formed by the material such as polypropylene etc. with insulating properties.Upper cover 13 by the rib 11d set by the top 11a2 that makes lower edge 13d be entrenched in outer tube body 11, and is assemblied on the top 11a2 of outer tube body 11 integratedly, forms the space of having insulated between lower cover 12.The flat cable C forming administration of power supply and the sliding part 25 be configured in movably in lower cover 12 is held at this insulating space.
In the present embodiment, the fastening method obtained by ultrasonic wave coating is utilized upper cover 13 to be fastened on outer tube body 11.In addition, fastening other the deposition or adhesives etc. of also can using of upper cover 13 is carried out, and the attaching parts such as screw also can be used to carry out.
In addition, lower cover 12 also can be undertaken by pressing upper cover 13 being fastened on the upper cover 13 that outer tube body 11 obtains relative to the fixing of outer tube body 11, also lower cover 12 directly can be fixed on outer tube body 11.The fixing of lower cover 12 also can be undertaken by ultrasonic wave coating.In addition, also can use other deposition or adhesives etc. or use the attaching parts such as screw to carry out.
As shown in Figure 5, interior pipe 20 mainly possesses cylindric interior tube body 21, forms as the matrix part 22 of insulative resin parts and cap assembly 23.
Interior tube body 21 is formed by injection molding forming or blow molding, is formed with the ventilating duct T2 be communicated with the ventilating duct T1 of outer tube 10 (with reference to Fig. 3) in inner side.
Interior tube body 21 has stem portion 21a and the diameter the other end 21c larger than this stem portion 21a.
The pillar 21a1 for sliding part 25 set on support substrate parts 22 is provided with on stem portion 21a.An end 21a2 of this stem portion 21a is equipped with cylindric slide unit 26.This slide unit 26 is by the end 21a2 that is assemblied in stem portion 21a and the slip smoothly contributed between outer tube 10 and interior pipe 20.
The other end 21c can install the second suction fitting 6 and the first suction fitting 7, the top 21c1 of the other end 21c can load and matrix part 22 is installed.
Matrix part 22 is formed by the material such as polypropylene etc. with insulating properties, covers on the top 21c1 of the other end 21c of interior tube body 21.Namely, matrix part 22 covers on the all-round scope of discontented outer peripheral face and the top 21c1 of the other end 21c at the other end 21c of interior tube body 21.
Swinging support portion 22a and energising terminal support portion 22b is formed at the upper surface of matrix part 22.
In addition, in an end of matrix part 22, be provided with the sliding part 25 to the extended elongated plate-like in an end integratedly in the mode of the stem portion 21a along interior tube body 21.
Swinging support portion 22a is supported with action button 24 swingably.Action button 24 is buttons of the installing/dismounting for carrying out the second suction fitting 6 and the first suction fitting 7, has locking hook portion 24a in other end bottom.This hook portion 24a can haunt the inner space of the other end 21c by the opening 21c2 be formed on the top 21c1 of the other end 21c from the not shown hole portion be arranged on matrix part 22.
This action button 24 utilizes not shown spring members afterburning with the state that hook portion 24a is outstanding to the inner space of the other end 21c.Thus, if the installation portion of the second suction fitting 6 or the first suction fitting 7 is inserted from the inner space of the other end 21c, then hook portion 24a is engaging in the not shown engaging portion of the first suction fitting 6 or the second suction fitting 7, thus the first suction fitting 6 or the second suction fitting 7 are fixed on the interior pipe 20 of extension tube 5.In addition, when dismantling, pressing operation being carried out to the button portion 24b of action button 24, removing the locking of hook portion 24a.
At the energising terminal support portion 22b of matrix part 22, metal energising terminal 27 is installed.In addition, as shown in Fig. 9 (b) (c), at an end C2 (with reference to Fig. 9 (b) (c)) of an end connection flat shape cable C of sliding part 25, be electrically connected by not shown conductor wire between an end C2 of this flat cable C and energising terminal 27.
Cap assembly 23 is formed by the material such as polypropylene etc. with insulating properties.As shown in Figure 5, cap assembly 23 coordinates with groove portion 21c3,21c3 set on the top 21c1 of the other end 21c of interior tube body 21 by making lower edge 23c, 23c, thus be assemblied in integratedly on the 21c of the other end, and between matrix part 22, form the space of having insulated.
In the present embodiment, the fastening method obtained by ultrasonic wave coating is utilized to be fastened on the other end 21c of interior tube body 21 by cap assembly 23.In addition, fastening other the deposition or adhesives etc. of also can using of cap assembly 23 is carried out, and the attaching parts such as screw also can be used to carry out.
In addition, matrix part 22 also can be undertaken by pressing cap assembly 23 being fixed on the cap assembly 23 that interior tube body 21 obtains relative to the fixing of interior tube body 21, also matrix part 22 directly can be fixed on interior tube body 21.The fixing of matrix part 22 also can be undertaken by ultrasonic wave coating.In addition, also can use other deposition or adhesives etc. or use the attaching parts such as screw to carry out.
At the other end of cap assembly 23, be integrally formed with the sliding closure 28 be assemblied on the sliding part 25 of matrix part 22.Sliding closure 28 forms the space holding not shown conductor wire between sliding part 25.
In addition, the opening portion 23a supplying the button portion 24b of action button 24 to insert configuration is formed at the upper surface of cap assembly 23.
This sliding part 25 and sliding closure 28 one-tenth are integrated, as shown in Fig. 8 (a), by the other end 11c of outer tube 10 the inserting hole 151b of support component 15 that fixes, and to be inserted into and between lower cover 12 that outer tube body 11 has insulated and upper cover 13.
Further, as mentioned above, by being configured in the not shown conductor wire on sliding part 25, an end C2 (with reference to Fig. 9 (b)) of flat cable C is electrically connected with between energising terminal 27 (with reference to Fig. 5).Thus, be arranged on the energising terminal 17,17 (with reference to Fig. 3) of an end of outer tube 10 with between energising terminal 27 (reference Fig. 5) to be electrically connected with the state that outer tube body 11 and interior tube body 21 insulate.
The effect obtained according to said structure is below described.
(1) because the outer tube body 11 of extension tube 5 and interior tube body 21 are made up of the thermoplastic resin containing carbon fibre, therefore, overall as extension tube 5, can rigidity be guaranteed while realizing lightness.Also can by thermoplastic resin formed by containing carbon fibre of all or part of (part of the cylindrical shape such as except handle) of operation pipe 4, guarantee rigidity while realizing operating the lightness of pipe 4.Further, also by thermoplastic resin formed by containing carbon fibre of a part for main body of dust collector 2 (such as lower casing), rigidity can be guaranteed while realizing the lightness of main body of dust collector 2.
(2) due to the conductive component be configured in extension tube 5 be namely energized terminal 17,17 and energising terminal 27,27 be configured to insulate with the outer tube body 11 of extension tube 5 and interior tube body 21 in the lower cover 12 or matrix part 22 of insulative resin, therefore extension tube 5 can not conduct with energising terminal 17,17, and extension tube 5 also can not conduct with energising terminal 27.
Therefore, outer tube body 11 and the interior tube body 21 of extension tube 5 possess the structure formed by the material with electric conductivity, and can guarantee the suitable insulating properties with conductive component.
(3) because the lower cover 12 that energising terminal 17,17 and outer tube body 11 insulated and being covered by the matrix part 22 that be energized terminal 27 and interior tube body 21 insulate is discontented with as the all-round scope of the outer peripheral face of the outer tube body 11 of setting unit, interior tube body 21, therefore, compared with the structure that this configuration is all-round with covering outer peripheral face, can area coverage be reduced, can correspondingly realize light-duty, miniaturized thus.
(4) owing to being configured in the lower cover 12 as insulative resin respectively as the conductor wire W1 of administration of power supply be connected with energising terminal 17, the 17 and flat cable C be connected with conductor wire W1, therefore, can guarantee the suitable insulating properties with the outer tube body 11 as electroconductive component can realize the suitable power supply to the first suction fitting 7.
(5) because flat cable C is configured in the space of having insulated with outer tube body 11, therefore, it is possible to maintain good insulating properties between lower cover 12 and upper cover 13.Therefore, even if there is the coated thing of peeling off of flat cable C because of Long-Time Service, also can reliably stop flat cable C contact with the hand of people or directly contact with outer tube body 11.
(6) owing to utilizing the fastening method of ultrasonic wave coating upper cover 13 to be fastened on outer tube body 11, and be fastened on by cap assembly 23 on interior tube body 21, therefore upper cover 13 or cap assembly 23 is fixing simple, can realize the fastening of high strength.In addition, the crudy at deposition position becomes good, and value of the product also uprises.
(7) owing to being sealed by seal member 15d, the 15e with elasticity and electric conductivity between outer tube body 11 and interior tube body 21, therefore, it is possible to using outer tube body 11 and interior tube body 21 as parts with electric conductivity, suitably remove by being arranged on such as outer tube body 11 one except electrical mechanisms the electrostatic making it charged.The reduction of productive raising and cost can be realized thus.
In addition, when outer tube body 11 and interior tube body 12 are formed with metal materials such as aluminium alloys, by sealing above-mentioned with seal member 15d, 15e between the two, thus can with one that is arranged on such as outer tube body 11 except electrical mechanisms suitably removes the electrostatic making it charged.
(8) be configured to arrange the not shown holding wire etc. be communicated with main body of dust collector 2 side, in the structure that the electrostatic of extension tube 5 is discharged to this holding wire etc., existing holding wire etc. can be utilized suitably to remove electrostatic, thus the reduction of cost can be realized.
In addition, also can be configured to, the first suction fitting 7 or the second suction fitting 6 such as be contained the thermoplastic resin formed of carbon fibre by the material with electric conductivity, makes to the part contacted with extension tube 5, to there is electric conductivity from the part contacted with cleaning face.In this case, suitably can be discharged to the electricity in cleaning face by the first suction fitting 7 or the second suction fitting 6.
In addition, also can by thermoplastic resin formed by containing carbon fibre of all or part of (part of the cylindrical shape such as except handle) of operation pipe 4, from the outer tube 10 of extension tube 5 by holding the people of this operation pipe 4 when operation pipe 4 and cleaning, make extension tube 5 with electrostatic to releasings such as floor.
(9) when utilizing injection molding forming to form the outer tube body 11 of extension tube 5 and interior tube body 21, formed compared with the situation of extension tube 5 with utilizing metal parts, formed simple, complicated shape etc. also can form, highly productive.
In addition, the smooth interior surfaces of outer tube body 11 and interior tube body 21 can be made by injection molding forming, therefore, it is possible to suppress the electrostatic produced because of the conflict of dust.
In addition, the shape etc. of each parts can at random set, lower cover 12, upper cover 13 at the size of circumference, matrix part 22, cap assembly 23 in the size etc. of circumference, as long as the scope covering discontented outer peripheral face all-round just can at random set.
In addition, in the above-described embodiment, with regard to extension tube 5, illustrate the structure linking outer tube 10 and interior pipe 20, but be not limited thereto, also can form with a body.
(2. extension tube)
Secondly, the outer tube body 11 of extension tube 5 forming being shaped electric dust collector 1 is equipped with and the material of interior tube body 21 are described.As mentioned above, the outer tube body 11 and the interior tube body 12 that form extension tube 5 are made up of the thermoplastic resin (being suitable for below being called " containing carbon fibre resin ") of the carbon fibre containing regulation ratio.Below this is described containing carbon fibre resin.
(carbon fibre)
Containing the fiber (short fiber) that the carbon fibre contained by carbon fibre resin is by high temperature carbonization such as fibrous such as polyacrylonitrile (PAN) resin, spacing etc. being obtained, it more than 90% is made up of carbon element usually.The concrete kind of this carbon fibre is not particularly limited, and the physical property according to carbon fibre described later can manufacture under any condition, and can use the goods that market is sold.When manufacturing carbon fibre, its manufacturing condition, raw material etc. are not particularly limited, and use known arbitrary manufacturing condition and raw material to carry out manufacturing.In addition, carbon fibre not necessarily must be used alone one, also can use two or more by arbitrary ratio and combination.
Length containing the carbon fibre contained by carbon fibre resin is not particularly limited, preferred below 1mm.By using the carbon fibre of this length, outer tube body 11 and the carbon fibre contained by interior tube body 21 can be prepared more easily, therefore, it is possible to cut down the manufacturing cost of extension tube 5.In addition, by making outer tube body 11 and the carbon fibre of interior tube body 21 containing this length, carbon fibre moderately stirs together at the outer tube body 11 of formation and containing in carbon fibre resin of interior tube body 21 each other, and its result, can have good rigidity.
Containing the amount of the carbon fibre contained by carbon fibre resin containing being more than 5 quality %, below 15 quality %, preferably below 10 quality % in carbon fibre resin.By the amount of carbon fibre within the scope of this, the manufacturing cost of extension tube 5 can not only be suppressed, balance can also improve the lightness of extension tube 5 and high rigidization well.In addition, also have easily by above-mentioned upper cover 13 (with reference to Fig. 3) and cap assembly 23 (with reference to Fig. 5) advantage of ultrasonic wave coating outside on tube body 11 and interior tube body 21 respectively.About this point, be described in detail with reference to Figure 10.
Figure 10 is the curve obtained according to the research of the present inventor, be schematically represent situation that the amount of carbon fibre has been changed, the curve containing the relation of the bending strength of carbon fibre resin of the tabular of the thickness containing carbon fibre resin of tabular (poor corresponding with the length of external diameter during shaping extension tube and internal diameter) and this thickness.In Figure 10, the record near each curve is the amount (quality %) of carbon fibre (CF), and " PP " represents the polypropylene (CF amount is 0 quality %) as the thermoplastic resin not containing carbon fibre.
In addition, " 86MPa " of the longitudinal axis represents the polyacrylic bending strength that the thickness that existing electric dust collector uses is 2mm.Namely, in the existing extension tube be made up of the polypropylene of thickness 2mm, the polyacrylic bending strength of tabular when this extension tube being configured as tabular is 86MPa.Therefore, as long as the bending strength of sheet-like resin is at more than 86MPa, then this sheet-like resin can be used to be shaped at least there is the extension tube with in the past above on an equal basis intensity (rigidity).
Further, " 0.9 " mm of transverse axis is the MIN thickness that can carry out injection molding forming or blow molding.Therefore, when carry out injection molding forming or blow molding to be shaped extension tube, use sheet-like resin to be shaped very importantly, the thickness of extension tube is minimum is 0.9mm.
As shown in Figure 10, when having same thickness, more increase containing the carbon fibre amount in carbon fibre resin, the intensity (desirable strength) containing carbon fibre resin more increases.But the usual price of carbon fibre is higher, when making the amount of carbon fibre increase, increase (price rising) containing the manufacturing cost in carbon fibre resin.Further, if make the thickness of extension tube increase, then the quality of extension tube is caused also to rise (quality rising) thus.In addition, according to the research of the present inventor, polyacrylic proportion is 0.92g/cm
3, the polyacrylic proportion containing carbon fibre with the ratio of such as 10 quality % is 0.95g/cm
3.Therefore, containing polyacrylic than great than containing carbon fibre of the polyacrylic proportion of carbon fibre, therefore, when only make carbon fibre containing when increasing, even if thickness is identical, weight also increases.
Namely, in order to improve the rigidity of extension tube 5 (being more particularly outer tube body 11 and interior tube body 21), even if only make the amount of carbon fibre increase, extension tube 5 can not be manufactured at an easy rate, and weight also increases.Further, when weight becomes overweight, if reduce the thickness of extension tube 5, then described laterly shapingly become difficulty, the rigidity that extension tube 5 is usually required cannot be guaranteed.In addition, even if in order to make thickness identical and make the amount of carbon fibre reduce to manufacture extension tube 5 at an easy rate, the intensity that extension tube 5 is usually required can not be guaranteed.If further, increase the thickness of extension tube 5 in order to ensure rigidity, then the weight of extension tube 5 likely becomes heavy (quality increase).
Curve shown in Figure 10 is in view of above-mentioned problem, the curve that the present inventor carries out studying and obtains.The reduction (cheap) of manufacturing cost when namely, manufacturing, guarantee usually required intensity, extension tube 5 that lightness all has both obtained by the effort research of the present inventor.Namely, such as comprise polypropylene and 10 quality % ratio carbon fibre containing in carbon fibre resin, when the intensity with the mechanical strength of resin of existing formation extension tube (mechanical strength of resin as tabular is 86MPa) equal extent will be maintained, if thickness exceedes about 2mm, then form the resin weight of extension tube than ever.
Therefore, if what make carbon fibre is more than 5 quality % and below 15 quality % containing proportional, then can reach the intensity with the resin equal extent forming extension tube in the past, and can make Thickness Ratio in the past (about 2mm) thin, and then extension tube can be made light than ever.Particularly, because extension tube is tubular, therefore compared with forming the miscellaneous part of electric dust collector, there is easily damaged situation, but there is the excellent results of light-duty (namely thickness is thin) and high rigidity.By the carbon element resin that contains with such carbon fibre amount is applied to extension tube, following extension tube can be manufactured: the length direction pars intermedia of tube body 11 and interior tube body 21 makes the difference of external diameter and internal diameter be more than 1mm and below 1.4mm respectively outside, and this difference is below 2mm in length direction Zone Full, thin, light-duty and high rigidity than ever.
In addition, according to by with more than 5 quality % and the ratio of below 15 quality % contains the extension tube 5 formed containing carbon fibre resin of carbon fibre, the upper cover 13 above-mentioned by ultrasonic wave coating and cap assembly 23, can more reliably fix.More particularly, have the amount more increasing carbon fibre, usual ultrasonic wave coating becomes more difficult tendency.But, according to the extension tube 5 containing carbon fibre with aforementioned proportion, while maintaining above-mentioned cheapness, light-duty, high rigidity, also there is the fixing effect can carrying out upper cover 13 and cap assembly 23 more reliably.Further, by making thermoplastic resin contain carbon fibre with aforementioned proportion, thus also have and utilize injection molding forming described later or blow molding to come especially easily to be shaped the advantage of extension tube.
(thermoplastic resin)
Extension tube 5 is made up of the thermoplastic resin containing above-mentioned carbon fibre.In the explanation of above-mentioned carbon fibre, be that object lesson is illustrated as thermoplastic resin with polypropylene, but the thermoplastic resin contained by extension tube 5 is not limited to polypropylene.Namely, as the thermoplastic resin of shaping extension tube 5, known arbitrary thermoplastic resin (such as ABS (acrylonitrile-butadiene-styrene (ABS)) resin described above etc.) can be used, as long as the function that its physical property possesses as extension tube is then arbitrary.But, as the thermoplastic resin of shaping extension tube 5, according to the viewpoint of light-duty and cheap, easy manufacture and process, as illustrated in above-mentioned concrete example, preferably use polypropylene.In addition, thermoplastic resin is not to be used alone one, and can combinationally use two or more with arbitrary ratio yet.
In addition, extension tube 5 also can containing any composition beyond above-mentioned carbon fibre and thermoplastic resin.
Secondly, to forming being described by the manufacture method of the outer tube body 11 formed containing carbon fibre resin and interior tube body 21 of extension tube 5.In the present embodiment, outer tube body 11 and interior tube body 21 are shaped respectively by making containing carbon fibre resin injection molding forming or blow molding.Below be divided into these two kinds of the situation of carrying out injection molding forming, the situation of carrying out blow molding, the manufacture method of external tube body 11 and interior tube body 21 is described.But outer tube body 11 and although interior tube body 21 shape is slightly different can similarly manufacture, therefore, in the following description, the manufacture method of tube body 21 is that example is described.In addition, in order to simplicity of illustration, the shape of the interior tube body 21 in Figure 11 and Figure 12 is made to be simple barrel shape.
(carrying out the situation of injection molding forming)
When use carries out injection molding forming containing carbon fibre resin, its concrete method is not particularly limited.Below the method for injection molding forming is specifically described, but the method for injection molding forming is not limited to following content.Such as, as shown in figure 11, can shaping drum shape profile (namely the outward appearance of cylindrical shape) mould (patrix 100 and counterdie 101), can combine and the component be made of one the type heart 102 of internal diameter of forming cylinder shape.And by the through hole 102b of the through flange 102a formed with the type heart 102, in the gap produced when these are combined, melted after injection (namely releasing) heating containing carbon fibre resin.Then cool, and dismantle bed die 100,101 and the type heart 102, cut off flash as required, thus the interior tube body 21 that can be shaped.
The temperature containing the mould 100,101 during carbon fibre resin and the type heart 102 that injection has been melted is arbitrary temperature, but when containing carbon fibre resin fusing point below temperature, due to containing carbon fibre resin solidification, be therefore set as the temperature higher than this melting temperature.In addition, because injection load during injection is according to containing the temperature of carbon fibre resin or composition and different, therefore cannot treat different things as the same, but such as about 200MPa can be.In addition, as concrete device when carrying out injection moulding, such as, the injection moulding forming machine that Japanese Unexamined Patent Publication 2010-131966 publication or Japanese Unexamined Patent Publication 2006-110905 publication etc. are described can be used.
By utilizing injection molding forming to be shaped interior tube body 21, precision can form outer shape and the interior shape of interior tube body 21 well, the component of the interior walls be smooth making interior tube body 21 can be made.Therefore, air use electric dust collector time in tube body 21 internal circulation time, the internal drag of air can be reduced, the running efficiency of the electric blower that electric dust collector is equipped with can be improved further.In addition, the turbulent flow of the concavo-convex air caused of inwall can be suppressed, the noise with this turbulent flow can be suppressed further.Further, owing to extension tube entirety can be shaped integratedly in an operation, therefore, it is possible to realize the simplification of manufacturing process.
(carrying out the situation of blow molding)
When use carries out blow molding containing carbon fibre resin, its concrete method is not particularly limited.Referring to Figure 12, the method for blow molding is specifically described, but the method for blow molding is not limited to following content.
Such as, combine the mould 200,201 of the profile of the barrel shape shown in Figure 12 that can be shaped, the inside to these moulds 200,201 is released by the parison 202 formed containing carbon fibre resin.Then, the inside to parison 202 sprays into pressure-air, parison 202 is pressed into the inner surface of mould 200,201.Further, by cooling mould 100,101, parison 202 being solidified, after dismounting bed die 200,201, cutting off flash as required, thus the interior tube body 21 that can be shaped.
Form the temperature containing carbon fibre resin of parison 202, be not particularly limited, as long as be suitable for known arbitrary blow-moulding process to the concrete pressure etc. of load during mould 200,201 inner surface release parison 202, pressure-air.In addition, as concrete device when carrying out blow molding, the blow molding machine that such as Japanese Unexamined Patent Publication 11-277617 publication etc. is described can be used.
By utilizing blow molding to be shaped interior tube body 21, can not use type heart be shaped in tube body 21, therefore, it is possible to realize the simplification of the manufacturing process of the withdrawable type heart etc.Owing to interior tube body 21 entirety can be shaped integratedly in an operation, therefore, according to this viewpoint, the simplification of manufacturing process can also be realized.
As mentioned above, outer tube body 11 and interior tube body 21 can manufacture at an easy rate, and light-duty and high rigidity.Namely, about usually used as the subsidiary extension tube 5 on electric dust collector of accessory, also can realize the raising of performance, and then the electric dust collector that electric dust collector overall performance is high can be provided.
In addition, as mentioned above, even if use containing carbon fibre resin, also easily injection molding forming or blow molding can be carried out.Therefore, there is the advantage that the shaping of extension tube 5 (more particularly, outer tube body 11 and interior tube body 21) is easy and so on.In addition, by ultrasonic wave coating upper cover 13 and cap assembly 23, also can relative to the thermoplastic resin containing carbon fibre easily and firmly fix.
In addition, in electric dust collector 1, outer tube body 11 and interior tube body 21 will be applied to containing carbon fibre resin, but this containing carbon fibre resin except beyond can be applicable to outer tube body 11 and interior tube body 21, also can be applicable to such as wheel etc. and form on each parts of electric dust collector 1.And, as mentioned above, also can will be applied to containing carbon fibre resin on the parts of (i.e. all or part of) at least partially of the parts of (i.e. all or part of) at least partially of formation operation pipe 4 or formation main body of dust collector 2.
Claims (2)
1. an electric dust collector, it possesses the motor that comprises rotary cleaning body and drive this rotary cleaning body and the suction fitting formed, the electric blower being built in main body of dust collector, be formed at ventilating duct between above-mentioned suction fitting and above-mentioned electric blower, being formed by the extension tube of tubular at least partially of above-mentioned ventilating duct, the feature of this electric dust collector is
Above-mentioned extension tube have outer tube, and slidably folding and unfolding capable of expansion and contraction relative to this outer tube in this outer tube in pipe and from above-mentioned main body of dust collector to the administration of power supply of above-mentioned motor,
Above-mentioned outer tube has outer tube body and to be fastened on this outer tube body and to cover the upper cover of above-mentioned administration of power supply,
Above-mentioned interior pipe has interior tube body and to be fastened on this interior tube body and to cover the cap assembly of above-mentioned administration of power supply,
Above-mentioned outer tube body and above-mentioned interior tube body are made up of the carbon fibre resin that contains containing carbon fibre and thermoplastic resin,
Fastening and the above-mentioned interior tube body of above-mentioned outer tube body and above-mentioned upper cover and above-mentioned cap assembly fastening at least one party undertaken by ultrasonic wave coating,
The amount containing carbon fibre contained by carbon fibre resin forming above-mentioned outer tube body and the amount containing at least one party in the amount of the carbon fibre contained by carbon fibre resin forming above-mentioned interior tube body are can by above-mentioned upper cover ultrasonic wave coating on above-mentioned outer tube body, and can by the amount of above-mentioned cap assembly ultrasonic wave coating on above-mentioned interior tube body.
2. electric dust collector according to claim 1, is characterized in that,
The amount containing carbon fibre contained by carbon fibre resin forming above-mentioned outer tube body and the amount containing at least one party in the amount of the carbon fibre contained by carbon fibre resin forming above-mentioned interior tube body above-mentioned containing being below 15 quality % in carbon fibre resin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011-057084 | 2011-03-15 | ||
| JP2011057084A JP5647041B2 (en) | 2011-03-15 | 2011-03-15 | Electric vacuum cleaner |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210025094.9A Division CN102670122B (en) | 2011-03-15 | 2012-02-06 | Electric vacuum cleaner |
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| CN104257326A true CN104257326A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410309511.1A Pending CN104257326A (en) | 2011-03-15 | 2012-02-06 | Electric Vacuum Cleaner |
| CN201210025094.9A Active CN102670122B (en) | 2011-03-15 | 2012-02-06 | Electric vacuum cleaner |
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| CN201210025094.9A Active CN102670122B (en) | 2011-03-15 | 2012-02-06 | Electric vacuum cleaner |
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| JP (1) | JP5647041B2 (en) |
| CN (2) | CN104257326A (en) |
| TW (2) | TWI566734B (en) |
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| CN111743456A (en) * | 2019-03-27 | 2020-10-09 | 夏普株式会社 | Extension pipe of electric dust collector and electric dust collector with the same |
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Also Published As
| Publication number | Publication date |
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| TW201236631A (en) | 2012-09-16 |
| JP2012192006A (en) | 2012-10-11 |
| CN102670122B (en) | 2015-04-01 |
| CN102670122A (en) | 2012-09-19 |
| TWI484933B (en) | 2015-05-21 |
| TW201513821A (en) | 2015-04-16 |
| JP5647041B2 (en) | 2014-12-24 |
| TWI566734B (en) | 2017-01-21 |
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Application publication date: 20150107 |