CN107174168A - The attachment structure of hose for electric vacuum cleaner - Google Patents
The attachment structure of hose for electric vacuum cleaner Download PDFInfo
- Publication number
- CN107174168A CN107174168A CN201610532180.7A CN201610532180A CN107174168A CN 107174168 A CN107174168 A CN 107174168A CN 201610532180 A CN201610532180 A CN 201610532180A CN 107174168 A CN107174168 A CN 107174168A
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- Prior art keywords
- flexible pipe
- hose
- inner cylinder
- outer barrel
- intensive aspect
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- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000428 dust Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 241000270295 Serpentes Species 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035488 systolic blood pressure Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
- A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention provides a kind of attachment structure of hose for electric vacuum cleaner, the intensity of the flexible pipe at connecting portion its object is to improve the high flexible hose of elongation multiplying power and connecting elements.The attachment structure of hose for electric vacuum cleaner is the attachment structure for being connected the end of hose for electric vacuum cleaner (2) with connecting elements (3).Hose for electric vacuum cleaner be with spiral helicine intensive aspect (21) and can extend for it is non-loaded when length 3~12 times of flexible pipe.Connecting elements has inner cylinder (31), and inner cylinder inserts the inner side of flexible pipe in the way of making periphery of the end sleeve of flexible pipe in inner cylinder.It is provided with the outer circumferential side of the flexible pipe for the part inserted for inner cylinder in the way of touching with flexible pipe outer peripheral face by the integrally formed outer barrel of synthetic resin (32), and inner cylinder is mutually integrated with outer barrel.If during a diameter of d of intensive aspect, the end (IE) by flexible pipe center of inner cylinder is more configured compared with the end (OE) by flexible pipe center of outer barrel with more than 0.8d amount by flexible pipe center.
Description
Technical field
Connection structure is integrally connected with the present invention relates to a kind of end in hose for electric vacuum cleaner
The attachment structure of the hose for electric vacuum cleaner of part.More particularly to a kind of extend the high electric dust absorption of multiplying power
The attachment structure of device flexible pipe.
Background technology
The electric dust collector for possessing flexible hose is used widely.On such electric dust collector sometimes
It is configured with the high flexible hose of elongation multiplying power.If using the high flexible hose of elongation multiplying power, such as special
Shown in sharp document 1 like that, in vertical electric dust collector, in electric dust collector main body 12 and operation
The high flexible hose 40 of elongation multiplying power is configured between handle 60.Moreover, for example can be by dust catcher
Main body 12 be placed on one layer it is motionless, elongate flexible hose 40 simultaneously operation handle 60 is held to sweep platform
Rank, two layers of floor or ceiling portion (Fig. 7 (c) of patent document 1).
The high flexible hose of multiplying power is extended as making the operation of such electric dust collector become possible,
For example it is known to the flexible hose shown in patent document 2.Patent Document 2 discloses a kind of tube wall
Be formed as spiral helicine concavo-convex waveform and spiral helicine metal system is configured with the inside of convex waveform portions
The flexible hose of intensive aspect, discloses a kind of under the usual posture of flexible pipe, strengthens due to spiral helicine
The systolic pressure of body and in the electric dust collector of the convex ripple portion posture against each other or close of tube wall
Flexible hose.The flexible pipe for example can be stretched to more than 3 times of length relative to length when shrinking,
Rich in retractility.
Patent document 1：Japanese Unexamined Patent Application Publication 2008-506489 publications
Patent document 2：Japanese Unexamined Patent Publication 07-59693 publications
, can if connecting elements to be integrated into the hose main body end of above-mentioned hose for used dust collector
The attended operation of flexible pipe is enough carried out using connecting elements, easily, therefore generally in above-mentioned dust catcher
There is connecting elements with the end integration of flexible pipe.In addition, elongation multiplying power is higher, the storage of flexible pipe
Better, the distance that can be extracted out becomes longer, thus in recent years elongation multiplying power have change greatly more than 3 times,
More than 5 times of tendency.
However, by the discussion of inventor etc., if specify that as described in patent document 1
The high flexible hose of such elongation multiplying power in patent document 2 is used in electric dust collector, then in connection
At the connecting portion of component and flexible hose, the intensive aspect configured in flexible pipe may be damaged.
The content of the invention
It is an object of the invention to improve the connecting portion of the high flexible hose of elongation multiplying power and connecting elements
The intensity of the flexible pipe at place.
Inventor etc. is to will extend the high flexible hose integration of multiplying power in the company with inner cylinder and outer barrel
The structure of connection member is inquired into, inquired into why extend multiplying power height the intensive aspect of flexible pipe can be caused to hold
Easily damaged at connecting portion.Then, it was found that following situation：As shown in figure 3, when flexible soft
When pipe 2 is pulled on direction orthogonal the center line m relative to connecting elements 99, in flexibility
Near the connecting portion of flexible pipe 2 and connecting elements 99, intensive aspect 21 is at the center relative to connecting elements
Moved on direction (direction of the downside in figure) orthogonal line m, a part of 21a of intensive aspect across
The end of outer barrel 992 is crossed, so as to cause stronger contact force to act on intensive aspect 21 and outer barrel end
Between, the damage of intensive aspect 21 is caused by starting point of the part.In addition, also specify that following feelings
Condition：The elongation multiplying power of flexible pipe 2 is higher, and constraint of the hose wall to intensive aspect is weaker, therefore intensive aspect
21 become easily to move up in the orthogonal sides of the center line m relative to connecting elements, and the tendency is held
Easily occur, cause the intensive aspect 21 of flexible pipe easily to sustain damage.
Moreover, that inventor etc. is carefully inquired into as a result, finding following situation：Even if with being connected
The power that the center line m of component is orthogonal is had an effect, if so that intensive aspect 21 is difficult to relative to center
Side orthogonal line m is moved up, then is also difficult to occur between intensive aspect 21 and outer barrel end 992
The contact of strength.Also, inventor has found, makes end of the end than outer barrel of the inner cylinder of connecting elements
More by the prominent predetermined distance in flexible pipe center, so as to complete the present invention.
The present invention relates to a kind of attachment structure of hose for electric vacuum cleaner, it is to use electric dust collector
The structure that the end of flexible pipe is connected with connecting elements, wherein, hose for electric vacuum cleaner is with spiral
The intensive aspect of shape and can extend for it is non-loaded when length 3~12 times of flexible pipe, the connection structure
Part has inner cylinder, and inner cylinder is inserted in flexible pipe in the way of making periphery of the end sleeve of flexible pipe in inner cylinder
Side, the flexible pipe outer circumferential side in the part inserted for inner cylinder is provided with the way of touching with flexible pipe outer peripheral face
By the integrally formed outer barrel of synthetic resin, and inner cylinder is mutually integrated with outer barrel, if the intensive aspect
During a diameter of d, the end and the end by flexible pipe center of the outer barrel by flexible pipe center of the inner cylinder
Compare with more than 0.8d amount more by flexible pipe center configuration (first scheme) in portion.
In first scheme, the end by flexible pipe center of preferably outer barrel is formed by thermoplastic elastomer (TPE)
(alternative plan).Also, in alternative plan, preferably spiral helicine intensive aspect is by resin-coated
Steel wire (third program).
Invention effect
According to the attachment structure of the hose for electric vacuum cleaner of first scheme, intensive aspect goes upward to outer barrel
The situation of end is inhibited, and the intensity of the flexible pipe at connecting portion is improved.
If also, as alternative plan, the end of outer barrel is formed by thermoplastic elastomer (TPE), Huo Zhejin
One step is as third program, and intensive aspect is resin-coated steel wire, even if then intensive aspect and outer barrel end
Contact, the intensity that can also suppress the flexible pipe at the situation that its contact force becomes too much, connecting portion is obtained
Further improve.
Brief description of the drawings
Fig. 1 is the broken section for the hose for electric vacuum cleaner attachment structure for showing first embodiment
Figure.
Fig. 2 is to show the hose for electric vacuum cleaner attachment structure imposed load to first embodiment
When flexible pipe deformation state sectional view.
Fig. 3 is the sectional view of the deformation state of flexible pipe when showing to inquire into example imposed load to comparing.
Description of reference numerals：
1 hose
2 flexible hoses (hose main body)
21 intensive aspects
22 hose walls
3 connecting elements
31 inner cylinders
32 outer barrels
33 connecting portions
M connecting elements center lines
Embodiment
Hereinafter, embodiments of the present invention are illustrated referring to the drawings.The present invention is not by as shown below
Individual other embodiment restriction, its concrete mode etc. can be changed and be implemented.It is used as
Embodiment at one embodiment, the flexible hose connecting portion of vertical electric dust collector is said
It is bright.Fig. 1 is the broken section for the hose for electric vacuum cleaner attachment structure for showing first embodiment
Figure.It should be noted that in Fig. 1, the upside half part of figure being shown with section, is shown with outward appearance
Downside half part.
In vertical electric dust collector, hose 1 as the flexible pipe 40 in patent document 1,
It is used as the flexible pipe to entering joining line between main body of dust collector and operation handle.At the end of hose 1
At portion, hose for electric vacuum cleaner 2 (being also recited as below " flexible hose ") and connecting elements 3
Connect with being integrated.Connecting elements 3 can be provided only on one end of flexible hose 2, can also set
Put at the two ends of flexible hose 2.
Hose for electric vacuum cleaner 2 is with spiral helicine intensive aspect 21 and can extended to be non-loaded
When length 3~12 times of flexible pipe.In order to obtain the retractility, the hose wall 22 of flexible hose 2
In snake abdomen shape, the snake abdomen shape is formed as spiral helicine concavo-convex waveform shape.Moreover, spiral helicine intensive aspect
21 configure along the recess of concavo-convex waveform, convex portion, and integrated with hose wall.
In flexible hose 2, spiral helicine intensive aspect 21 is formed as, and makes intensive aspect when non-loaded
Shrink and mutually touch such convergent force and play a role.Because intensive aspect 21 has convergent force, from
And when non-loaded, flexible hose 2 is mutually to touch or connect at the part present in intensive aspect 21
Near mode turns into contraction state.It is preferred that as in the present embodiment, when non-loaded (during contraction)
The hose wall 22 of snake abdomen shape is folded into fold to topple over such form towards flexible pipe a direction.
The constituent material of hose wall 22 is not particularly limited, for example, can pass through flexible vinyl chloride tree
Synthetic resin as fat, polyurethane resin constitutes hose wall 22.The constituent material of intensive aspect 21
Be not particularly limited, for example, can by resin-coated steel wire, metal wire (especially steel wire),
Wire rod formed by synthetic resin etc. constitutes helical form intensive aspect 21.It is preferred that as present embodiment that
Sample, helical form intensive aspect 21 is by resin-coated steel wire.
It should be noted that the manufacture method of such flexible hose 2 is known.
The connecting elements 3 being connected with the end of flexible hose 2 has inner cylinder 31 and outer barrel 32.Inner cylinder
31 are inserted into the inner side of flexible pipe 2 so that in a coupled condition, and the end sleeve of flexible hose 2 exists
The periphery of inner cylinder 31.It is preferred that the inner peripheral surface of flexible hose 2 is engaged with the outer peripheral face of inner cylinder 31.In addition,
In the outer circumferential side of the flexible hose 2 for the part inserted for inner cylinder 31, with what is touched with flexible pipe outer peripheral face
Mode is provided with by the integrally formed outer barrel 32 of synthetic resin.It is preferred that the outer peripheral face of flexible hose 2 with
The inner peripheral surface engagement of outer barrel 32.Above-mentioned engagement can be the bonding for having used bonding agent etc., also may be used
To be thermal welding.In addition, inner cylinder 31 is mutually integrated with outer barrel 32.Inner cylinder 31 and outer barrel 32
Integration can be realized by mechanical engagement, screw thread, chimeric etc., can also pass through and constitute the two
Synthetic resin mutual deposition realize.
It is provided with the end of the connecting elements 3 of the opposite side of the side provided with inner cylinder 31 and outer barrel 32
Connecting portion 33, connecting portion 33 is installed on operation handle, main body of dust collector.Connecting portion 33 it is specific
Shape is not particularly limited, and is provided according to the shape of other side's side member.In addition, connecting portion with
Other side's side member (operation handle etc.) can also be integrally formed.
In connecting elements 3, the end IE by flexible pipe central (left side in Fig. 1) of inner cylinder 31
Compared with the end OE by flexible pipe center of outer barrel 32, more to be configured apart from L by flexible pipe center.
Moreover, set a diameter of d of the intensive aspect 21 of flexible hose 2, then inner cylinder 31 by flexible pipe center
End IE is more leaned on compared with the end OE by flexible pipe center of outer barrel 32 with more than 0.8d amount
The configuration of flexible pipe center.It is preferred that the end IE of inner cylinder compared with the end OE of outer barrel with more than 1.4d's
Amount more by the configuration of flexible pipe center, the end IE of particularly preferred inner cylinder compared with the end OE of outer barrel with
More than 2.0d amount is more by the configuration of flexible pipe center.
In addition, in connecting elements, the end IE and outer barrel 32 by flexible pipe center of inner cylinder 31
It is preferably below 6d by the end OE in the flexible pipe center amount L compared more by the configuration of flexible pipe center, more
Plus preferably below 5d.If this is because, the overhang L of inner cylinder 31 becomes big, connecting in flexible pipe
Binding structure in appearance, more exposes flexible pipe in the end OE than outer barrel by the central part of flexible pipe is easy
The part of stretching.
Inner cylinder 31, the material of outer barrel 32 for constituting connecting elements 3 are not particularly limited, for example can be with
Use the synthetic resin materials such as hard vinyl chloride resin.It is excellent as the resin material for constituting outer barrel 32
Choosing is using thermoplastic elastomer (TPE) (such as olefin series thermoplastic elastomer).Particularly preferred outer barrel 32
By flexible pipe center end OE formed by thermoplastic elastomer (TPE).In addition, constituting the tree of outer barrel 32
Material, the resin material of composition inner cylinder 31 that fat material is preferably capable with constituting hose wall 22 are heated
The resin material for connecing or being bonded.
Hose 1 with above-mentioned attachment structure can for example be made by following manufacture method
Make.First, flexible hose 2 is manufactured.In addition, being manufactured using injection molded etc. in connecting elements 3
The part of cylinder 31 and connecting portion 33.Next, by the end of flexible hose 2 to be enclosed on connecting elements
Inner cylinder 31 on mode insert.Now, the end of flexible hose 2 is preferably elongation state, but
It can also be contraction state.
In the state of the end sleeve of flexible hose 2 is on the inner cylinder 31 of connecting elements, the two is inserted
Enter mould inside and carry out matched moulds, inject the resin for constituting outer barrel 32, so that with soft with flexibility
The mode of the periphery contiguity of the end of pipe 2 carrys out injection molded and goes out outer barrel 32.The process is commonly called as cladding
The method of forming (overmolding) or produced by insert molding method (insert molding).By the process, outside
Cylinder 32 is so that with being formed in the way of the outer peripheral face of flexible hose 2 contiguity, outer barrel 32 and inner cylinder 31 are integrally
Change, so as to realize the hose connecting structure of above-mentioned first embodiment.
Effect and effect to the present invention are illustrated.According to the electronic suction of above-mentioned first embodiment
The attachment structure of dirt device flexible pipe, positioned at the inner side of flexible hose 2 inner cylinder 31 by flexible pipe center
End IE and positioned at flexible hose 2 outside outer barrel 32 by flexible pipe center end OE phases
Than when the diameter of the intensive aspect 21 of flexible hose 2 is set to d with more than 0.8d amount (L >=0.8d)
More by the configuration of flexible pipe center, so even flexible pipe is in the side orthogonal with the center line m of connecting elements 3
Pulled upwards, the situation for the end OE that also intensive aspect 21 can be crossed to outer barrel prevents trouble before it happens.
Thus, it is possible to which the intensive aspect 21 for suppressing the flexible pipe when flexible pipe is pulled in the horizontal crosses outer barrel
The intensity decreases of flexible pipe caused by the OE of end (are more specifically to the bending to intensive aspect 21
The reduction of the durability of input).
First, reference picture 3, to inner cylinder end relative to outer barrel end not to the position by flexible pipe center
The mode of texturing that the flexible pipe in example is inquired into prominent comparison is illustrated.In this compares discussion example, even
The end of the inner cylinder 991 of connection member 99 and the end of outer barrel 992 are along connecting elements center line m
Direction on be located at roughly the same position.Other structures are identical with above-mentioned first embodiment.At this
In the hose connecting structure of sample, to flexible pipe 2 on the direction orthogonal with connecting elements center line m (
Towards downside in Fig. 3) working tension F.
Then, due to pulling force F effect, the integrated portion of inner cylinder, outer barrel not with connecting elements
The intensive aspect 21 divided is pulled to the downside of figure.Thus, especially separated with outer barrel, inner cylinder
The intensive aspect 21a of one circle is easily to by direction (i.e. the downside of the figure) displacement pulled.In addition, by
The flexible pipe of the degree for 3 to 12 times can be extended compared with being when non-loaded in flexible hose 2, because
This is difficult to the form that intensive aspect 21 is maintained by hose wall.Therefore, separated with outer barrel, inner cylinder
The intensive aspect 21a of first lap or next circle is easily to the position displacement leaned on than outer barrel 992 on the outside of flexible pipe.
Therefore, in example is inquired into the comparison shown in Fig. 3, at the intensive aspect 21a of first lap part
Intensive aspect is produced inside and outside flexible pipe across the part of outer barrel 992, at this at part, intensive aspect
The easily strongly mutually pressing of the end of 21a and outer barrel.Then, at the part, stronger bending
Moment loading is in intensive aspect, so as to be easily caused intensive aspect bending or lose the intensity drop of such flexible pipe
It is low.
On the other hand, the attachment structure of the flexible pipe according to as shown in above-mentioned first embodiment, such as schemes
Shown in 2, inner cylinder 31 with compared with the part that flexible hose 2, intensive aspect 21 are pinned by outer barrel 32 to
The mode that flexible pipe central portion is protruded is set with growing length L, and L is set to d in the diameter of intensive aspect
When be more than 0.8d.That is, inner cylinder 31, which is protruded, forms so that the intensive aspect do not pinned by outer barrel 32
21 substantially one week more than in the range of be present in inner cylinder 31 ledge periphery.
Implement when making pulling force F on the direction orthogonal with connecting elements center line m to such first
When mode is had an effect, intensive aspect 21 is pulled to the downside of figure, but is not being pinned by outer barrel 32
There is inner cylinder 31 on the inside of the intensive aspect 21a of partial first lap part, so as to prevent intensive aspect
21a part is moved up in the side orthogonal with connecting elements center line m.Therefore, it is real according to first
Apply the hose connecting structure of mode, the intensive aspect 21a of first lap part is than outer barrel more on the outside of flexible pipe
Prominent situation is inhibited, and the situation of intensive aspect 21a part across the end of outer barrel is also pressed down
System.
So as to, it is not easy to produce intensive aspect 21 and the end OE of outer barrel contact in crossing manner and
So that stronger power, bending moment act on the situation of the part, the intensity decreases of intensive aspect are pressed down
System, is improved as the intensity of hose connecting structure.
From prevent the end OE and intensive aspect 21a of outer barrel 32 from intersecting and make the part by strongly by
From the viewpoint of pressure this case, preferably the end OE by flexible pipe center of outer barrel 32 is by thermoplasticity
Elastomer is formed.So, even if intensive aspect 21 intersects with outer barrel 32, contacted, the part
Abutting also becomes soft, and the concentration of load is also relaxed, so as to further suppress intensive aspect,
The intensity decreases of flexible pipe.
In addition, helical form intensive aspect 21 is preferably by resin-coated steel wire, due to by softer than steel wire
Resin-coated, therefore the concentration of the load of part that intensive aspect 21 intersects with outer barrel 32, contacted of matter
Further relaxed, can further suppress the intensity decreases of intensive aspect, flexible pipe.In addition, by setting
The coated helical form intensive aspect of fat is easily strongly bonded and integrated with hose wall, even if shown in Fig. 2
, also can be by hose wall 22 in the case that such strong flexural deformation is inputted to hose transition
Maintain to be integrated with helical form intensive aspect 21.
【Embodiment】
Above-mentioned action effect is confirmed by testing.
(embodiment 1)
Hose connecting structure corresponding with first embodiment is manufactured.Here, what is produced is flexible soft
The elongation multiplying power of pipe 2 is 5 times, and the coil diameter (internal diameter) of the intensive aspect 21 of flexible hose 2 is 35mm.
In addition, the intensive aspect of flexible hose 2 is the diameter 1.6mm resin-coated steel wire (diameter of steel wire
For 1.2mm).In the state of flexible hose 2 is integrated with connecting elements 3, the end of inner cylinder 31
Portion IE is compared with the end OE of outer barrel 32 to the prominent 4mm of flexible pipe center side (L is equivalent to 2.5d).
(embodiment 2)
The example makes the end IE of inner cylinder 31 relative to the end OE of outer barrel 32 relative to embodiment 1
The amount prominent to flexible pipe center side is 1.4mm (L is equivalent to 0.88d).
(comparative example)
The example makes the end of the end of inner cylinder and outer barrel be located axially at phase in flexible pipe relative to embodiment
Same position (L is equivalent to 0).
Bending load long duration test has been carried out to the above embodiments, comparative example.Experiment is as follows
Carry out：By make connecting elements 3 be upside and flexible hose 2 be downside in the way of connecting elements is installed
On test fixture, the shape of the bottom of flexible hose 2 is acted in the load for making 2kgf (19.6N)
Under state, carry out test fixture in the way of applying positive and negative 90 degree of angular displacement repeatedly to test fixture
Periodic motion, so as to apply flexural deformation to the connecting portion of flexible pipe and coupling member.
In embodiment 1, embodiment 2, even if number of bends is more than 150,000 times, flexible hose,
Damage, deformation are not observed on connecting elements yet.On the other hand, in a comparative example, in bending time
When number is 30,000 times or so, the helical form intensive aspect of flexible pipe is lost.Confirm to work as the phase of inner cylinder 31
For outer barrel 32 overhang L more than 0.8d when, the endurance of the flexible pipe at connecting portion is filled
Divide and improve.
The present invention is not limited by above-mentioned embodiment, can carry out various changes to implement.It is right below
The other embodiment of invention is illustrated, in the following description, with different from the embodiment described above
Part centered on illustrate, to identical part omit detail explanation.In addition, following institute
The a part of of the embodiment shown can be mutually combined, or can also replace one part to implement.
In the above-described first embodiment, to by synthetic resin by with flexible pipe outer peripheral face contiguity in the way of one
The outer barrel 32 of body shaping is illustrated in the mode that the periphery of connecting elements 3 is exposed, but in outer barrel
32 outside can also further set other cylindrical members.In this case, contiguity is formed
Outer barrel (32) on flexible pipe outer peripheral face merges with the cylindrical member on the outside of it sees an outer barrel as,
The relation of the axial location of end between regulation and inner cylinder 31.
In addition, for the concrete structure of flexible hose 2, as long as the flexible pipe is to possess helical form reinforcement
Body and can extend for it is non-loaded when length 3~12 times of flexible pipe, be not particularly limited.
In the explanation of above-mentioned embodiment, the snake abdomen shape with the concavo-convex bar of helical form to constituting flexible hose 2
The structure that is folded in the way of toppling over facing one direction when non-loaded of hose wall 22 said
It is bright, but the snake abdomen shape of hose wall form it can also be provided that to flexible pipe radial direction on the inside of it is prominent.
In addition, the concrete shape of the hose wall 22 extended between intensive aspect 21 is not particularly limited.In addition,
The position integrated with hose wall of intensive aspect 21 can be the inner side of hose wall, or hose wall
Outside.In addition, intensive aspect 21 can be as above-mentioned first embodiment with hose wall raised line
Integrally, can also be integrated with the other parts of hose wall, for example can be with spiral helicine groove
Integrally.
In addition, the hose connecting structure of above-mentioned embodiment can also illustration vertical electric dust collector
Applied in other electric dust collectors in addition.As long as flexible pipe is with spiral helicine intensive aspect and can stretched
The hose connecting structure of 3~12 times of flexible pipe, then above-mentioned embodiment of length when a length of non-loaded
Application do not limited by the species of electric dust collector, all electric dust collectors can be applied to.
Industrial utilizability
Hose for electric vacuum cleaner attachment structure involved in the present invention can be 3~12 to elongation multiplying power
Flexible pipe again is used, and the intensity of connecting portion is improved, and industrial value is high.
Claims (3)
1. a kind of attachment structure of hose for electric vacuum cleaner, it is by hose for electric vacuum cleaner
The structure that end is connected with connecting elements, it is characterised in that
Hose for electric vacuum cleaner be with spiral helicine intensive aspect and can extend for it is non-loaded when
3~12 times of flexible pipe of length,
The connecting elements has inner cylinder, and inner cylinder is in the way of making periphery of the end sleeve of flexible pipe in inner cylinder
The inner side of flexible pipe is inserted,
Flexible pipe outer circumferential side in the part inserted for inner cylinder is set in the way of touching with flexible pipe outer peripheral face
Have by the integrally formed outer barrel of synthetic resin, and inner cylinder is mutually integrated with outer barrel,
If during a diameter of d of the intensive aspect, the end by flexible pipe center of the inner cylinder with it is described outer
The end by flexible pipe center of cylinder is compared more to be configured with more than 0.8d amount by flexible pipe center.
2. the attachment structure of hose for electric vacuum cleaner according to claim 1, wherein,
The end by flexible pipe center of outer barrel is formed by thermoplastic elastomer (TPE).
3. the attachment structure of hose for electric vacuum cleaner according to claim 2, wherein,
Spiral helicine intensive aspect is by resin-coated steel wire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016045186A JP6293185B2 (en) | 2016-03-09 | 2016-03-09 | How to connect the vacuum cleaner hose |
| JP2016-045186 | 2016-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107174168A true CN107174168A (en) | 2017-09-19 |
Family
ID=59830810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610532180.7A Pending CN107174168A (en) | 2016-03-09 | 2016-07-04 | The attachment structure of hose for electric vacuum cleaner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6293185B2 (en) |
| CN (1) | CN107174168A (en) |
| MY (1) | MY178126A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158236A (en) * | 1995-08-10 | 1997-09-03 | 三洋电机株式会社 | Hose of electric duster and it mfg. method |
| US20060174440A1 (en) * | 2005-02-10 | 2006-08-10 | Nationwide Sales & Service, Inc. | Vacuum cleaner adapters and assemblies including the same |
| CN101961229A (en) * | 2009-07-23 | 2011-02-02 | 戴森技术有限公司 | Surface cleaning appliance |
| CN102818085A (en) * | 2011-06-10 | 2012-12-12 | 泰贺斯聚合物股份有限公司 | Hose assembly |
| JP2014077495A (en) * | 2012-10-10 | 2014-05-01 | Toyox Co Ltd | Pipe joint structure |
| CN104154363A (en) * | 2014-08-28 | 2014-11-19 | 许道泽 | Pipe fitting quick connection device |
| CN104822302A (en) * | 2013-12-11 | 2015-08-05 | 泰贺斯聚合物股份有限公司 | Flexible hose |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002034867A (en) * | 2000-07-27 | 2002-02-05 | Kana Flex Corporation Kk | Structure of connecting part of cleaner hose |
| JP2004180973A (en) * | 2002-12-04 | 2004-07-02 | Mitsubishi Electric Corp | Vacuum cleaner |
-
2016
- 2016-03-09 JP JP2016045186A patent/JP6293185B2/en active Active
- 2016-07-04 CN CN201610532180.7A patent/CN107174168A/en active Pending
- 2016-09-21 MY MYPI2016703431A patent/MY178126A/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158236A (en) * | 1995-08-10 | 1997-09-03 | 三洋电机株式会社 | Hose of electric duster and it mfg. method |
| US20060174440A1 (en) * | 2005-02-10 | 2006-08-10 | Nationwide Sales & Service, Inc. | Vacuum cleaner adapters and assemblies including the same |
| CN101961229A (en) * | 2009-07-23 | 2011-02-02 | 戴森技术有限公司 | Surface cleaning appliance |
| JP2011025040A (en) * | 2009-07-23 | 2011-02-10 | Dyson Technology Ltd | Surface cleaner |
| CN102818085A (en) * | 2011-06-10 | 2012-12-12 | 泰贺斯聚合物股份有限公司 | Hose assembly |
| JP2014077495A (en) * | 2012-10-10 | 2014-05-01 | Toyox Co Ltd | Pipe joint structure |
| CN104822302A (en) * | 2013-12-11 | 2015-08-05 | 泰贺斯聚合物股份有限公司 | Flexible hose |
| CN104154363A (en) * | 2014-08-28 | 2014-11-19 | 许道泽 | Pipe fitting quick connection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6293185B2 (en) | 2018-03-14 |
| JP2017158760A (en) | 2017-09-14 |
| MY178126A (en) | 2020-10-05 |
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