CN105889309A - Fluid damper device and apparatus equipped with damper - Google Patents
Fluid damper device and apparatus equipped with damper Download PDFInfo
- Publication number
- CN105889309A CN105889309A CN201610083039.3A CN201610083039A CN105889309A CN 105889309 A CN105889309 A CN 105889309A CN 201610083039 A CN201610083039 A CN 201610083039A CN 105889309 A CN105889309 A CN 105889309A
- Authority
- CN
- China
- Prior art keywords
- outer cover
- housing
- fluid cushion
- cushion device
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/12—Hinges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/54—Arrangements for attachment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toilet Supplies (AREA)
- Fluid-Damping Devices (AREA)
Abstract
To provide a fluid damper device wherein a cover can be properly affixed to an end part of a case that constitutes a damper chamber, and to provide an apparatus that is equipped with a damper, said apparatus being provided with the fluid damper device. A fluid damper device 10 wherein a cover 60, which is provided with a hole 61 through which a rotating shaft 40 passes, is affixed to an end part of a cylindrical case 20 that constitutes a damper chamber. The cover 60 is affixed to the case 20 by means of a male screw 66 that is formed in an outer circumferential surface 62 of the cover 60 and a female screw 226 that is formed in an inner circumferential surface 220 of the case 20. The case 20 and the cover 60 are resin molded articles, and when the case 20 and the cover 60 are molded, the female screw 226 and the male screw 66 are formed simultaneously. The screw-in depth of the cover 60 is controlled by contact with a contact part 227 that is formed in the inner circumferential surface 220 of the case 20, and the cover 60 is entirely or approximately entirely positioned inside the case 20.
Description
Technical field
The present invention relates to a kind of fluid cushion device being filled with fluid between housing and rotary shaft and band
The equipment of buffering.
Background technology
It is filled with between housing and rotary shaft in the fluid cushion device of fluid, at the axis direction of housing
The end of side is fixed with the outer cover with the hole through for rotary shaft.It has been proposed that and outer cover is being fixed
The method utilizing ultrasonic bonding when housing.In this ultrasonic bonding, soldering tip is made to be connected to inserting of outer cover
Enter the end face of the rear side in direction and produce ultrasonic wave, making the outer peripheral face of outer cover overlapping when axis direction is observed
Part and the inner peripheral surface partial melting of housing, and outer cover be pressed in housing (reference patent document 1).
Patent document 1: Japanese Unexamined Patent Publication 2012-202504 publication
But, there are the following problems in ultrasonic bonding: if condition generation deviation when carrying out ultrasonic bonding,
The condition of ultrasonic bonding is improper, then fix intensity and can reduce.Therefore, the hypertonia in surge chamber
Time, there are outer cover distinct issues laterally.Further, when utilizing ultrasonic bonding, if the size of outer cover
Deviation occurs, then there are the following problems: in outer cover intrusion in housing changes and makes surge chamber
Volume changes, shock-absorbing capacity generation deviation.
Summary of the invention
In view of the above problems, the problem of the present invention be to provide a kind of can be at the end of housing constituting surge chamber
The fluid cushion device of portion's suitably stationary housings and there is the buffered device of fluid cushion device.
In order to solve above-mentioned problem, fluid cushion device involved in the present invention has: the housing of tubular, its
Constitute surge chamber；Rotary shaft, it is inserted in described housing；Fluid, it is filled in described housing；With
And outer cover, it has the hole through for described rotary shaft, and is fixed on the side of the axis direction of described housing
End, described outer cover is by being formed at the external screw thread of the outer peripheral face of described outer cover and being formed at described housing
The internal thread of inner peripheral surface is fixed on described housing.
In the present invention, pass through for rotary shaft owing to being fixed with in the end of the side of the axis direction of housing to have
The outer cover in logical hole, therefore, it is possible to utilize outer cover to bear the pressure in housing.Here, owing to outer cover passes through shape
The internal thread of the external screw thread becoming the outer peripheral face of outer cover and the inner peripheral surface being formed at housing is fixed on housing, therefore
Fixing intensity is higher, and outer cover can be appropriately secured to housing.Therefore, though the pressure in surge chamber
When power is too high, it is not easy to the situation occurring outer cover to highlight laterally.Further, even if owing to the size of outer cover is sent out
Raw deviation, outer cover intrusion in housing is not easy to variation, therefore, it is possible to suitably outer cover is fixed on shell
Body.Accordingly, because the volume being not susceptible in outer cover intrusion in housing changes and makes surge chamber
Situation about changing, therefore shock-absorbing capacity is not susceptible to deviation.
In the present invention, it is preferred to described housing and described outer cover are synthetic resins.According to this structure,
When housing and outer cover are molded, it is possible to simultaneously form internal thread and external screw thread.
In the present invention, it is preferred to be formed with the abutting portion towards described side at described housing, outside described
Cover is formed with the opposite side towards described axis direction the planar portions abutted with described abutting portion.According to this
Structure, it is possible to make outer cover intrusion in housing stable.
In the present invention, it is preferred to described abutting portion is formed at the inner peripheral surface of described housing, at described outer cover
The outer rim of the end face of described opposite side is formed with described planar portions.
In the present invention, it is preferred on described axis direction, the part of the largest outside diameter of described outer cover is to be formed
There is described externally threaded part.According to this structure, it is possible to make whole or the most whole outer cover be positioned at housing.
In the present invention, it is preferred to it is constant for covering on whole described axis direction top external diameter outside described, described
It is formed with described external screw thread on the whole described axis direction of the outer peripheral face of outer cover.According to this structure, due to energy
Enough whole outer cover is screwed on housing, therefore, it is possible to outer cover is firmly fixed at housing.
In the present invention, it is preferred to whole or the most whole described outer cover is positioned at described housing.According to this structure,
The compact in size of the axis direction of fluid cushion device can be made.
In the present invention, it is preferred to the many places in the circumference of the end face of the described side of described outer cover are formed recessed
Portion.According to described structure, when outer cover is fixed on housing, it is possible to make tool engagement in recess, and can
Outer cover is made to rotate.
Process in the present invention, it is preferred to be applied with spline between described outer cover and described housing.According to this knot
Structure, it is possible to prevent outer cover from loosening.
In the present invention, it is preferred to the end that the process of described spline is the described side making described housing is plastically deformed
Process.According to this structure, compared with being adhesively fixed etc., it is possible to carry out spline process efficiently.
In the buffered device with fluid cushion device involved in the present invention, such as, can use such as
Under structure: in described rotary shaft, the opening and closing member in rotary moving relative to equipment body is installed.
In the present invention, described opening and closing member is the toilet seat of Western-style toilet.
In the present invention, pass through for rotary shaft owing to being fixed with in the end of the side of the axis direction of housing to have
The outer cover in logical hole, therefore, it is possible to utilize outer cover to bear the pressure in housing.Here, owing to outer cover passes through shape
The internal thread of the external screw thread becoming the outer peripheral face of outer cover and the inner peripheral surface being formed at housing is fixed on housing, therefore
Fixing intensity is higher, and outer cover can be appropriately secured to housing.Therefore, though the pressure in surge chamber
When power is too high, it is not easy to the situation occurring outer cover to highlight laterally.Further, even if owing to the size of outer cover is sent out
Raw deviation, outer cover intrusion in housing is not easy to change, therefore, it is possible to suitably fixed by outer cover
In housing.Accordingly, because be not susceptible in outer cover intrusion in housing changes and make surge chamber
The situation that volume changes, therefore shock-absorbing capacity is not susceptible to deviation.
Accompanying drawing explanation
Fig. 1 is the Western-style toilet with the Western-style toilet being equiped with the fluid cushion device applying the present invention
The explanatory diagram of unit.
Fig. 2 (a), Fig. 2 (b) are the stereograms of the fluid cushion device applying the present invention.
Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) are fluid cushion device cross-sectional applying the present invention
View.
Fig. 4 is the longitudinal section of the fluid cushion device applying the present invention.
Fig. 5 (a), Fig. 5 (b) are the exploded perspective views of the fluid cushion device applying the present invention.
Fig. 6 is the spool etc. observing the fluid cushion device applying the present invention from the opposite side of axis direction
Stereogram.
Fig. 7 (a), Fig. 7 (b) are the fluid cushion device applying the present invention to be applied with spline process
Side view afterwards.
(symbol description)
1 Western-style toilet (buffered device)；
2 toilet main bodys (equipment body)；
5 toilet seats (opening and closing member)；
6 toilet lid (opening and closing member)；
10 fluid cushion devices；
10a fluid cushion apparatus main body；
11 surge chambers；
12 fluids；
16 first ribs；
17 second ribs；
20 housings；
21 diapires；
22 main parts；
23 separation protuberances；
30 rotors；
41 the first axle parts；
42 the second axle parts；
43 first flange parts；
44 second flange parts；
45 weeks grooves；
46 spool supporting protuberances；
50 spools；
51 base portions；
52 terminal parts；
60 outer covers；
The hole of 61 outer covers；
The outer peripheral face of 62 outer covers；
The end face of 63 outer covers；
The recess of 64 outer covers；
66 external screw threads；
100 Western-style toilet unit；
220 inner peripheral surfaces；
226 internal threads；
227 abutting portion；
231 radially inner side ends；
The outer peripheral face of 410 the first axle parts；
The end face of 417 the first axle parts；
The end of 467 spool supporting protuberances；
651 planar portions；
L axis；
L1 side；
L2 opposite side.
Detailed description of the invention
Referring to the drawings the mode being used for implementing the present invention is illustrated.Further, in the following description,
In rotor 30, the direction extended by the central axis of rotary shaft 40 is as axis L direction, at axis L
On direction, using rotary shaft 40 from the prominent side of housing 20 as side L1, will be with rotary shaft 40 from shell
Contrary side, the prominent side of body 20 illustrates as opposite side L2.
(buffered device and the overall structure of fluid cushion device 10)
Fig. 1 is the Western-style toilet list of the Western-style toilet 1 of the fluid cushion device 10 having and applying the present invention
The explanatory diagram of unit 100.Fig. 2 (a), Fig. 2 (b) are the fluid cushion devices 10 applying the present invention
Stereogram, Fig. 2 (a) is the stereogram that the side L1 from axis L direction observes fluid cushion device 10,
Fig. 2 (b) is the stereogram that the opposite side L2 from axis L direction observes fluid cushion device 10.
Western-style toilet unit 100 shown in Fig. 1 has Western-style toilet 1 (buffered device) and water tank
3.Toilet seat 5 (the opening and closing that Western-style toilet 1 has toilet main body 2 (equipment body), is formed from a resin
Parts), the toilet lid 6 (opening and closing member) that is formed from a resin and unit cover 7 etc..Fluid described later delays
Flushing device 10 is used as toilet seat and the toilet lid inside being built in unit cover 7, toilet seat 5
And toilet lid 6 is connected with toilet main body 2 by fluid cushion device 10 respectively.Here, due to horse
Fluid cushion device 10 and the fluid cushion device 10 that is connected with toilet lid 6 that bucket seat ring 5 connects can
Use identical structure, the most in the following description with the fluid cushion device 10 being connected with toilet seat 5
Centered by illustrate.
As shown in Fig. 2 (a), Fig. 2 (b), fluid cushion device 10 has cylindric at opposite side L2
Fluid cushion apparatus main body 10a.The connecting portion 10b (output shaft) of shaft-like is from fluid cushion apparatus main body
10a is prominent to side L1, and connecting portion 10b is connected with toilet seat 5.This fluid cushion device 10 is vertical
When the toilet seat 5 risen falls down in the way of covering toilet main body 2, produce the power (load) resisted therewith,
The speed making toilet seat 5 fall down declines.The face in opposite directions of connecting portion 10b becomes tabular surface 10c, passes through
This tabular surface 10c prevents toilet seat 5 from dallying relative to connecting portion 10b.
(overall structure of fluid cushion device 10)
Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) are the fluid cushion devices 10 applying the present invention
Sectional elevation, Fig. 3 (a) be by the position of spool 50 with the face cutting along axis L fluid cushion
Sectional view during device 10, Fig. 3 (b) be by the position of separation protuberance 23 with the face along axis L
Sectional view during cutting fluid cushion device 10, Fig. 3 (c) is to amplify to illustrate the section view near outer cover 60
Figure.Fig. 4 is the longitudinal section of the fluid cushion device 10 applying the present invention, by spool 50
Position is sectional view during fluid cushion device 10 with the face cutting with axis L-orthogonal.Fig. 5 (a), figure
5 (b) is the exploded perspective view of the fluid cushion device 10 applying the present invention, and Fig. 5 (a) is from axis
The side L1 in L direction observes the exploded perspective view of the state having unloaded outer cover 60 from housing 20, Fig. 5 (b)
The decomposition being the state that rotary shaft 40 grade has been unloaded in the side L1 observation from axis L direction from housing 20 is vertical
Body figure.Fig. 6 is that the opposite side L2 from axis L direction observes the fluid cushion device 10 applying the present invention
The stereogram of spool 50 grade.
Such as Fig. 3 (a), Fig. 3 (b), Fig. 3 (c), Fig. 4 and Fig. 5 (a), Fig. 5 (b) institute
Showing, fluid cushion device 10 has and has the housing 20 of tubular of diapire 21, opposite side at opposite side L2
L2 is arranged in the rotor 30 of the inner side of housing 20 and the circle of the opening 29 at side L1 closing housing 20
Ring-type outer cover 60.In the present embodiment, housing 20 and outer cover 60 are all synthetic resins.
Housing 20 has the cylindric main part 22 extended from the outer peripheral edge of diapire 21 to side L1.Main
Body 22 internal diameter in the circumferential is identical.Within the casing 20, it is centrally formed oriented opposite side at diapire 21
L2 caves in and the end 49 of the opposite side L2 of the rotary shaft 40 of rotor 30 is supported the circle for rotating
Recess 210.
Two separations are prominent to radially inner side from the inner peripheral surface 220 of main part 22 with protuberance 23.Two separations
The angle position of 180 ° of staggering in the circumferential it is formed at protuberance 23.In the present embodiment, two separations
It is connected with diapire 21 with the end that protuberance 23 is all opposite side L2.Separation protuberance 23 is trapezoidal shape in cross section
Shape, the size (thickness) in circumference is thinning to inner side from radial outside.
Rotor 30 has the rotary shaft 40 that the opposite side L2 in axis L direction is arranged in the inner side of housing 20
With the spool 50 being held in rotary shaft 40.Rotary shaft 40 is formed from a resin, and has and be positioned at housing 20
The first axle part 41 of the pole shape of inner side and second extended by the position of side L1 than the first axle part 41
Axle portion 42.The external diameter of the external diameter of the first axle part 41 end 49 than the opposite side L2 of rotary shaft 40 is big, the
The external diameter in two axle portions 42 is bigger than the external diameter of the first axle part 41.In the present embodiment, end 49 is in cylinder
Shape is formed, and becomes and residues in the structure that the resin of cast gate does not flies out when resin forming.It addition, the second axle part
The external diameter of 42 can also be less than the external diameter of the first axle part 41.Further, end 49 can also be oval cylinder
Portion.
In rotary shaft 40, it is formed between the first axle part 41 and the second axle part 42 at side L1 and
The first circular flange part 43 that one axle portion 41 is adjacent and convex with first across the interval of regulation at side L1
Edge 43 the second circular flange part 44 in opposite directions.Therefore, at the first flange part 43 and the second flange part
Ring-type all grooves 45 it are formed with between 44.Therefore, as long as installing O 70 at all grooves 45 and rotating
The first axle part 41 of axle 40 is inserted in the inner side of housing 20, and O 70 is just with the main part by housing 20
The state of part 229 compression being positioned at opposite side L2 in the inner peripheral surface 220 of 22 abuts therewith, and housing 20
Sealed with the space of rotary shaft 40 clamping.Further, by diapire 21 and the first axle part 41 at side L1
The space marked off with diapire 21 the first flange part 43 in opposite directions is sealed in housing 20 as surge chamber 11
Inside.Now, surge chamber 11 is filled with the fluids 12 (viscous fluid) such as oil.
Afterwards, as long as outer cover 60 to be inserted in the second axle part 42 of rotary shaft 40 and the main part of housing 20
Between 22, and stationary housings 60, just constitute fluid cushion device 10.Now, in outer cover 60 and rotary shaft
Circular pad 75 (with reference to Fig. 5 (b)) it is configured with between second flange part 44 of 40.
In this condition, recessed by the diapire 21 of housing 20 of the end 49 of the opposite side L2 of rotary shaft 40
Portion 210 supports as rotating, and the second axle part 42 is supported to energy in the inner side in the hole 61 of outer cover 60
Enough rotations.Further, the hole 61 of the through outer cover of a part 60 of the second axle part 42, and constitute connecting portion 10b.
(detailed construction in surge chamber 11)
As shown in Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) and Fig. 4, in surge chamber 11, shell
Two separations of body 20 the radially inner side end 231 of protuberance 23 and the first axle part 41 of rotary shaft 40
Outer peripheral face 410 contacts.
Such as Fig. 3 (a), Fig. 3 (b), Fig. 3 (c), Fig. 4, Fig. 5 (a), Fig. 5 (b) and figure
Shown in 6, in the outer peripheral face 410 of the first axle part 41 of rotary shaft 40, stagger 180 ° in the circumferential
Forming the spool supporting protuberance 46 that oriented radial outside is prominent at two, spool 50 is supported in this two valves
Core each in protuberance 46 of supporting.Two spool supportings with protuberance 46 all from another of rotary shaft 40
The end of side L2 extends to the first flange part 43 along axis L direction, and two spool supporting protuberances 46 are all
The end of side L1 is connected with the first flange part 43.
The first prominent protuberance 461 of oriented radial outside is formed and from second at spool supporting protuberance 46
Direction B and the adjacent position of the first protuberance 461 second protuberance 462 prominent to radial outside, convex first
It is formed with spool support slot 460 between portion 461 and the second protuberance 462.First protuberance 461 and second is convex
Portion 462 is all that the end of side L1 is connected with the first flange part 43.
The arc-shaped that spool support slot 460 bends within exceeding the angular range of about 180 ° in inner peripheral surface,
Spool 50 is supported in spool support slot 460.In the present embodiment, the circumferential width of the second protuberance 462
Wider than the circumferential width of the first protuberance 461.Further, the distal portion of the first protuberance 461 is in than the second protuberance
The terminal part of 462 is by the position of radially inner side.Further, the spool supporting circumference of the radially inner side of protuberance 46
The circumferential width of width ratio radial outside is narrow.
Spool 50 has and is supported to revolve around the axis parallel with axis L in spool support slot 460
The base portion 51 of the cross section circular turned and prominent to radial outside from base portion 51 and to be covered in the first protuberance
The terminal part 52 of the cross section convex that the mode of 461 tilts to first direction A, the radial outside of terminal part 52
Part is positioned at the position leaning on radial outside than the first protuberance 461 and the second protuberance 462.
(the sealing structure on axis L direction in surge chamber 11)
Spool 50 is identical with spool supporting protuberance 46, extends along axis L direction, the side of spool 50
The end 56 of L1 contacts with the first flange part 43.Therefore, between spool 50 and the first flange part 43 almost
Very close to each other.Therefore, fluid 12 cannot be by between spool 50 and the first flange part 43.On the other hand,
The end 57 of the opposite side L2 of spool 50 is positioned at the end of the opposite side L2 than spool supporting protuberance 46
467 somewhat by the position of side L1.Therefore, in the position depending on opposite side L2 relative to spool 50, at valve
Small gap is there is between end 57 and the diapire 21 of housing 20 of the opposite side L2 of core 50.Therefore,
Fluid 12 can pass through slightly through gap.
The end face 417 of the opposite side L2 of the first axle part 41 and the spool supporting opposite side L2 of protuberance 46
End 467 constitute continuous print face.Here, end face 417 and spool at the first axle part 41 prop up sometimes
Hold and between the end 467 with protuberance 46 and the diapire 21 of housing 20, there is gap, but at the first axle part 41
The end face 417 of opposite side L2 and the end 467 of opposite side L2 of spool supporting protuberance 46 formed
There is the first rib 16 (with reference to Fig. 6) radially extended.When constituting fluid cushion device 10, this is first years old
Rib 16 is crushed to the gap of end face 417 and the diapire 21 of housing 20 of same the first axle part 41 and spool
The state that the end 467 of supporting protuberance 46 is corresponding with the gap of the diapire 21 of housing 20.Therefore, stream
Body 12 is by between end face 417 and the diapire 21 of the first axle part 41 and spool supporting protuberance 46
Between end face 467 and diapire 21.
Further, sometimes convex with the first of rotary shaft 40 at the end face 236 of the side L1 of separation protuberance 23
There is small gap between edge 43, but formed at the end face 236 of the side L1 of separation protuberance 23
There is the second rib 17 (with reference to Fig. 5 (b)) radially extended.When constituting fluid cushion device 10, should
Second rib 17 is crushed to first flange part 43 of end face 236 and rotary shaft 40 of same separation protuberance 23
State corresponding to gap.Therefore, fluid 12 does not pass through end face 236 and the rotary shaft of separation protuberance 23
Between first flange part 43 of 40.
(fixed structure of the relative housing 20 of outer cover 60)
Fig. 7 (a) and Fig. 7 (b) is to implement the fluid cushion device 10 applying the present invention at spline
Side view after reason, Fig. 7 (a) has been by side view during the bonding process as spline process, figure
7 (b) has been by side view when processing as the riveting that spline processes.
As shown in Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) and Fig. 5 (a), Fig. 5 (b),
In the fluid cushion device 10 of present embodiment, when outer cover 60 is fixed on housing 20, utilizes and formed
In the external screw thread 66 of outer peripheral face 62 of outer cover 60 and it is formed at and opening in the inner peripheral surface 220 of housing 20
The internal thread 226 of 29 adjacent parts 228.Further, in the inner peripheral surface 220 of housing 20, it is positioned at one
The internal diameter of the part 228 (being formed with the part of internal thread 226) of side L1 is than the part being positioned at opposite side L2
The internal diameter of 229 is big, the part 228 at side L1 and between the part 229 of opposite side L2 shape
Become to have the abutting portion 227 being made up of the ring-type stage portion towards side L1.
Further, outer cover 60 is synthetic resin, and when resin forming, external screw thread 66 also simultaneously forms.
Therefore, different from the situation being defined external screw thread 66 by cutting etc., at the opposite side L2 of outer cover 60
End face 65 is formed with the ring-type planar portions 651 (with reference to Fig. 3 (c)) that circumferentially edge extends continuously.
Therefore, in the present embodiment, when outer cover 60 is fixed on housing 20, by the plane of outer cover 60
Portion 651 abuts with abutting portion 227, controls the outer cover 60 intrusion in housing 20.Further, at shell
In the outer peripheral face 24 of body 20, it is formed in part with towards making opening the most overlapping with internal thread 226
29 sides become the taper surface 28 that the direction of path tilts.
In the present embodiment, in outer cover 60, axis L direction top external diameter the best part is to be formed
The part of external screw thread 66.More specifically, outer cover 60 is constant at whole axis L direction top external diameter,
The whole axis L direction of the outer peripheral face 62 of outer cover 60 is formed with external screw thread 66.Therefore, it is possible to by whole
Individual outer cover 60 is screwed on housing 20, and when outer cover 60 is screwed on housing 20,
Whole outer cover 60 is positioned at housing 20.
Many places in the circumference of the end face 63 of the side L1 of outer cover 60 are formed with recess 64.In this enforcement
In mode, outer cover 60 side L1 end face 63 inner peripheral circumference on three at be formed with recess
64, when being screwed into outer cover 60, this recess 64 engages with instrument (omitting diagram), makes outer cover 60 rotate.
The housing 20 and the outer cover 60 that so constitute are synthetic resins.Therefore, housing 20 is being molded
Time, simultaneously form internal thread 226 etc., when outer cover 60 is molded, simultaneously form external screw thread 66 with
And recess 64.
In the present embodiment, between outer cover 60 and housing 20, apply spline to process.Such as utilize bonding
The riveting process etc. processing, employing hot riveting and ultrasonic wave riveting etc. processes as this spline.Therefore,
When rotary shaft 40 rotates, it is possible to prevent outer cover 60 from rotating and make the fixing of relative housing 20 loosen.
When utilizing bonding process to process as spline, first at external screw thread 66 and the housing 20 of outer cover 60
At least one of internal thread 226 smear anaerobies bonding agent etc., afterwards outer cover 60 is screwed into housing 20.
According to this structure, as shown in Fig. 7 (a), after completing fluid cushion device 10, outside whole
Cover 60 is positioned at the inside of housing 20, therefore becomes outer cover 60 the most not prominent to side L1 from housing 20
Structure.
On the other hand, when carrying out riveting process and processing as spline, the such as side L1 to housing 20
End carry out thermal weld and make it be plastically deformed, make the part being plastically deformed of housing 20 nip outer spiral shell
Line 66.Now, due to the end depression of the side L1 of housing 20, therefore as shown in Fig. 7 (b), outward
A part for cover 60 is prominent to side L1 from housing 20, and the most whole outer cover 60 is positioned at housing 20
Internal.
And, it is also possible to external screw thread 66 and the internal thread of housing 20 of outer cover 60 is made by ultrasonic bonding
226 are plastically deformed, and carry out spline between outer cover 60 and housing 20.
(action)
As shown in Figure 4, in fluid cushion device 10, at the toilet seat 5 shown in Fig. 1 from erecting appearance
During the closing motion that gesture rotates to calm posture, rotor 30 (rotary shaft 40) around axis L to first direction A
Rotate.Therefore, spool 50 bears pressure from fluid 12 and rotates, and terminal part 52 is to the second protuberance 462
Side shifting.As a result of which it is, the inner circumferential of the main part 22 of the radial outside portion of terminal part 52 and housing 20
Face 220 abuts.Therefore, stop fluid 12 spool 50 and spool supporting with in protuberance 46 to second
Direction B moves, as a result of which it is, rotor 30 (rotary shaft 40) is applied load (resistance).Even if
At this moment, owing to existing between end 57 and the diapire 21 of housing 20 of the opposite side L2 at spool 50
Small gap, therefore allows that fluid 12 somewhat moves to second direction B.Therefore, although to rotor 30
(rotary shaft 40) applies load, also allows and rotates to first direction A with low speed.
On the other hand, the toilet seat 5 shown in Fig. 1 from calm posture to erect posture rotate open dynamic
When making, rotor 30 (rotary shaft 40) rotates to second direction B around axis L.Therefore, spool 50 is from stream
Body 12 bears pressure and rotates, and terminal part 52 is to the first protuberance 461 side shifting.As a result of which it is, at end
Gap is there is between the inner peripheral surface 220 of the radial outside portion of end 52 and the main part 22 of housing 20.
Therefore, allow that fluid 12 moves to first direction A in spool 50 and spool supporting protuberance 46,
As a result of which it is, rotor 30 (rotary shaft 40) is not applied load.
(main efficacy results of present embodiment)
Such as the explanation done above, in the fluid cushion device 10 of present embodiment, at the axle of housing 20
The end of the side L1 in line L direction is fixed with the outer cover 60 with the hole 61 through for rotary shaft 40, because of
This outer cover 60 is born by the flange part (first flange part 43 and the second flange part 44) of rotary shaft 40
Pressure (pressure in housing 20) in surge chamber 11.Here, outer cover 60 is by being formed at outer cover 60
The external screw thread 66 of outer peripheral face 62 and the internal thread 226 of the inner peripheral surface 220 that is formed at housing 20 be fixed on
Housing 20.Therefore, fixing intensity is higher, it is possible to outer cover 60 is appropriately secured to housing 20.Therefore,
Even if during hypertonia in surge chamber 11, it is not easy to the situation occurring outer cover 60 to highlight laterally.And
And, even if due to the size generation deviation of outer cover 60, the outer cover 60 intrusion in housing 20 is not easy to
Variation, therefore, it is possible to be suitably fixed on housing 20 by outer cover 60.Accordingly, because be not susceptible to outer cover 60
Intrusion in housing 20 change and make surge chamber 11 in volume situation about changing, therefore
Shock-absorbing capacity is not susceptible to deviation.
Further, owing to housing 20 and outer cover 60 are synthetic resins, therefore to housing 20 and outer
During cover 60 shaping, it is possible to simultaneously form internal thread 226 and external screw thread 66.Therefore, it is possible to reduce stream
The cost of body buffer unit 10.Further, the outer peripheral face 24 at housing 20 is formed and makes and internal thread 226
The taper surface 28 being partially toward the direction inclination that diameter diminishes in side, open end 29 overlapping diametrically, should
Taper surface 28 is used as separation resin mold for forming and withdrawing pattern conical surface during housing 20.Therefore, dividing
When mould and housing 20, apply bigger owing to being difficult to be formed with the part of internal thread 226 in housing 20
Stress, therefore internal thread 226 is unlikely to deform.
Further, at the inner peripheral surface 220 of housing 20, the opposite side L2 in axis L direction and internal thread 226
Adjacent position is formed with the abutting portion 227 being made up of ring-type stage portion, and at the end face of outer cover 60
The outer rim of 65 is formed with the circular planar portions 651 abutted with abutting portion 227.Therefore, it is possible to outside making
Cover 60 intrusion in housing 20 are stable.
Further, owing in the circumference of the end face 63 of the side L1 of outer cover 60, many places are formed with recess 64,
Therefore when outer cover 60 is fixed on housing 20, it is possible to make instrument engage with recess 64, and make outer cover 60
Rotate.
Further, owing to the part of the largest outside diameter of outer cover 60 is the part being formed with external screw thread 66, therefore can
Whole or the most whole outer cover 60 is enough made to be positioned at housing 20.Further, due to the outer peripheral face at outer cover 60
It is formed with external screw thread 66, therefore, it is possible to be screwed on by whole outer cover 60 on the whole axis L direction of 62
Housing 20 such that it is able to outer cover 60 is firmly fixed at housing 20.
Further, owing to whole or the most whole outer cover 60 is positioned at housing 20, therefore, it is possible to make fluid cushion
The compact in size in the axis L direction of device 10.
(other embodiments)
In the above-described embodiment, when making the outer cover 60 intrusion in housing 20 stablize, use as follows
Structure: the abutting portion 227 of the planar portions 651 of outer cover 60 and the inner peripheral surface 220 being formed at housing 20
(stage portion) abuts.On the other hand, it would however also be possible to employ following structure etc.: the side L1's of housing 20
End face (abutting portion) abuts with the ring-type planar portions of the flange part being arranged at outer cover 60, or outer cover 60
Cover the end of side L1 of housing 20 and the planar portions of outer cover 60 and the outer peripheral face 24 being formed at housing 20
Ring-type stage portion (abutting portion) abut.
In the above-described embodiment, exemplified with the fluid cushion device 10 being connected with toilet seat 5, but also
Can apply the present invention in washing machine (buffered device) and washing machine can be rotatably mounted to
The fluid cushion device 10 that the lid (opening and closing member) of main body (equipment body) etc. connect.
Claims (12)
1. a fluid cushion device, it is characterised in that it has:
The housing of tubular, it constitutes surge chamber；
Rotary shaft, it is inserted in described housing；
Fluid, it is filled in described housing；And
Outer cover, it has the hole through for described rotary shaft, and is fixed on the axis direction of described housing
The end of side,
Described outer cover is by being formed at the external screw thread of the outer peripheral face of described outer cover and being formed at described housing
The internal thread of inner peripheral surface is fixed on described housing.
Fluid cushion device the most according to claim 1, it is characterised in that
Described housing and described outer cover are synthetic resins.
Fluid cushion device the most according to claim 1 and 2, it is characterised in that
It is formed with the abutting portion towards described side at described housing,
It is formed with the opposite side towards described axis direction at described outer cover and abuts with described abutting portion
Planar portions.
Fluid cushion device the most according to claim 3, it is characterised in that
Described abutting portion is formed at the inner peripheral surface of described housing,
Outer rim at the end face of the described opposite side of described outer cover is formed with described planar portions.
Fluid cushion device the most according to claim 4, it is characterised in that
On described axis direction, the part of the largest outside diameter of described outer cover is to be formed with described external screw thread
Part.
Fluid cushion device the most according to claim 5, it is characterised in that
It is constant for covering on whole described axis direction top external diameter outside described,
The whole described axis direction of the outer peripheral face of described outer cover is formed with described external screw thread.
7. according to the fluid cushion device described in claim 5 or 6, it is characterised in that
Whole or the most whole described outer cover is positioned at described housing.
Fluid cushion device the most according to any one of claim 1 to 7, it is characterised in that
Many places in the circumference of the end face of the described side of described outer cover are formed with recess.
Fluid cushion device the most according to any one of claim 1 to 8, it is characterised in that
Between described outer cover and described housing, it is applied with spline process.
Fluid cushion device the most according to claim 9, it is characterised in that
It is the process that is plastically deformed of the end of the described side making described housing that described spline processes.
11. 1 kinds of buffered devices, it is characterised in that it has in claim 1 to 10 arbitrary
Fluid cushion device described in Xiang,
In described rotary shaft, the opening and closing member in rotary moving relative to equipment body is installed.
12. buffered devices according to claim 11, it is characterised in that
Described opening and closing member is the toilet seat of Western-style toilet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015026952 | 2015-02-13 | ||
| JP2015-026952 | 2015-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889309A true CN105889309A (en) | 2016-08-24 |
Family
ID=56382654
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610083039.3A Pending CN105889309A (en) | 2015-02-13 | 2016-02-05 | Fluid damper device and apparatus equipped with damper |
| CN201620117497.XU Active CN205388120U (en) | 2015-02-13 | 2016-02-05 | Fluid buffer and buffered device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620117497.XU Active CN205388120U (en) | 2015-02-13 | 2016-02-05 | Fluid buffer and buffered device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2016153687A (en) |
| CN (2) | CN105889309A (en) |
| WO (1) | WO2016129537A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852131A (en) * | 2017-05-12 | 2018-11-23 | 日本电产三协株式会社 | Fluid damping device and equipment with damping |
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| CN1370697A (en) * | 2001-02-14 | 2002-09-25 | 奥依列斯工业株式会社 | Damper and vehicle seat with the said damper |
| JP4145062B2 (en) * | 2002-03-28 | 2008-09-03 | トックベアリング株式会社 | Rotating damper |
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| CN108852131B (en) * | 2017-05-12 | 2021-06-11 | 日本电产三协株式会社 | Fluid damping device and equipment with damping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205388120U (en) | 2016-07-20 |
| JP2016153687A (en) | 2016-08-25 |
| WO2016129537A1 (en) | 2016-08-18 |
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Application publication date: 20160824 |