CN104948633B - Fluid cushion device and buffered device - Google Patents
Fluid cushion device and buffered device Download PDFInfo
- Publication number
- CN104948633B CN104948633B CN201510142332.8A CN201510142332A CN104948633B CN 104948633 B CN104948633 B CN 104948633B CN 201510142332 A CN201510142332 A CN 201510142332A CN 104948633 B CN104948633 B CN 104948633B
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- China
- Prior art keywords
- convex portion
- rib
- valve body
- cushion device
- rotary shaft
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Classifications
-
- 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
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- 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
- A47K13/24—Parts or details not covered in, or of interest apart from, groups A47K13/02 - A47K13/22, e.g. devices imparting a swinging or vibrating motion to the seats
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- 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
- F16F9/12—Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, i.e. damping by viscous shear effect only
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- 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
Abstract
The present invention provides a kind of fluid cushion device and the buffered device with fluid cushion device, and the fluid cushion device can easily suppress fluid and be spilt between housing and the axis direction of rotor when making rotary shaft be rotated along the direction for producing load.In the surge chamber (11) of fluid cushion device (10), pass through to limit fluid (12) between rotary shaft (40) and bottom wall (21), the end face (417) and valve body of the side (L1) of the first axle part (41) in the part opposed with bottom wall (21) at side (L1) of rotary shaft (40) keep being formed with the first rib (16) towards bottom wall (21) is prominent and radially extends with the end (467) of the side (L1) of convex portion (46).When rotary shaft (40) is configured at the inner side of housing (20) by assembling fluid cushion device (10), first rib (16) is crushed and abutted with bottom wall (21).
Description
Technical field
The fluid cushion device of fluid and setting with buffering are filled between housing and rotor the present invention relates to a kind of
It is standby.
Background technology
Between housing and rotor in the fluid cushion device filled with fluid, match somebody with somebody in the inner side of the housing of bottomed cylindrical
The rotary shaft of rotor is equipped with, valve body is configured with the rotary shaft.Here, being formed with the bottom wall with housing in axis side in rotary shaft
The fluids such as oil are configured with upward opposed flange part, the surge chamber divided between bottom wall and flange part.Also, in housing shape
The prominent separation convex portion in inner side is radially oriented into having, is formed with rotary shaft and is radially oriented valve that is protruding outside and keeping valve body
Body holding convex portion.Therefore, because when rotary shaft is rotated in a first direction, and valve body is in closed mode, fluid is kept in valve body
Compressed between convex portion and separation convex portion, so applying load to rotary shaft.On the other hand, when rotary shaft is towards second direction
Reversion, valve body holding is separated with convex portion and separation with convex portion so that when valve body is in open state, fluid passes through, so not to rotation
Axle applies load (with reference to patent document 1).
Patent document 1：Japanese Unexamined Patent Publication 2010-151306 publications
In the fluid cushion device that patent document 1 is recorded, when rotary shaft is rotated in a first direction, if fluid imprudence
Spilt from the gap of housing and the axis direction of rotor, then can not obtain sufficient load.Accordingly, it would be desirable to improve housing and rotation
The dimensional accuracy of axle, to prevent the gap of fluid from housing and the axis direction of rotor from spilling, but from housing and rotary shaft
From the perspective of precision when dimensional accuracy and assembling, it will fully be close to compared between housing and rotor in the axial direction
It is difficult.
The content of the invention
In view of problem above, technical problem of the invention is to provide a kind of fluid cushion device and with the fluid cushion
The buffered device of device, the fluid cushion device can easily suppress make rotary shaft along the direction rotation for producing load
Fluid is spilt between housing and the axis direction of rotor when turning.
In order to solve the above problems, fluid cushion device involved in the present invention includes：Housing, it is cylindrical in shape, and
The side of axis direction has bottom wall；Rotor, it has rotary shaft and valve body, wherein, the rotary shaft has flange part, in institute
State the inner side of housing, the flange part is opposed with the bottom wall in the opposite side of the axis direction, and with the bottom wall
Between divide surge chamber, the valve body is held in the rotary shaft；And fluid, it is filled in the surge chamber, the housing
With the prominent separation convex portion in inner side is radially oriented from the inner peripheral surface of the housing, the rotor has from the outer of the rotary shaft
Side face is radially oriented valve body holding convex portion that is protruding outside and keeping the valve body, the rotary shaft and the housing it
Between be formed with least one rib in first rib and the second rib, wherein, the first rib is from the rotary shaft in the side
The be partially toward bottom wall opposed with the bottom wall is protruded and radially extended, and second rib is from the separation convex portion
The end of the opposite side protrudes and radially extended towards the flange part.
In the present invention, at least one rib in first rib and the second rib is formed between rotary shaft and housing, wherein,
The first rib is protruded and radially extended, described from rotary shaft the be partially toward bottom wall opposed with bottom wall in the side
Two ribs are protruded and radially extended from the end of the opposite side of separation convex portion towards flange part, therefore, it is possible in axis direction
On make fully to be close between housing and rotor.Also, in the case that the height (prominent size) of rib is too high, in assembling
During fluid cushion device, rib is crushed, so that rib can also turn into appropriate height (prominent size).Therefore rotary shaft is made along production
When the direction of raw load rotates, the gap that can easily suppress fluid from housing and the axis direction of rotor is spilt.
In the present invention, it is preferred to which the separation is provided with the circumferential respectively with convex portion and the valve body holding with convex portion
Identical number, and be arranged in the circumferential across the multiple positions being equally angularly spaced.In the case of that construction,
Due to surge chamber be divided into it is multiple, therefore, it is possible to produce larger load.On the other hand, if surge chamber is divided into it is multiple,
Then fluid is intended to the position that the gap of the axis direction from housing and rotor spills and is correspondingly increased, but passes through the present invention, energy
Enough fluids that easily suppresses are spilt, and surge chamber is divided into adverse effect that is multiple and producing therefore, it is possible to eliminate.In the present invention
In, it is preferably formed with the first rib and the second rib both sides.By this structure, fluid can be reliably suppressed from shell
The gap of the axis direction of body and rotor is spilt.
In the present invention, it is preferred to the end of the side of the separation convex portion is connected with the bottom wall, the valve body
The end of the opposite side of holding convex portion is connected with the flange part.By this structure, will not occur fluid from separation
With the situation and fluid spilt between the end of the side of convex portion and bottom wall from the end of the opposite side of valve body holding convex portion with
Situation about being spilt between flange part.
In the present invention, it is preferred to which on the projected direction of the rib, the end side of the rib is relative to the axis side
To orthogonal face.That is, it is preferred that when assembling fluid cushion device, rib is easily crushed.By this structure, due to rib
It is changed into appropriate height (prominent size), therefore when making rotary shaft be rotated along the direction for producing load, can be reliably suppressed
The gap of fluid from housing and the axis direction of rotor is spilt.
In the present invention, it is preferred on the projected direction of the rib, width of the width than end side of the root of the rib
It is wide.By this structure, when assembling fluid cushion device, rib is easily crushed.
In the present invention, it is preferred to which the first rib is from the part opposed with the bottom wall in the side of the rotary shaft
In the end of the side of the valve body holding convex portion protruded towards the bottom wall.
In the present invention, it is preferred to when the rotor is rotated produce load direction as first direction, will with it is described
When the opposite side of first direction is as second direction, the valve body holding has with convex portion：First convex portion, it is radially oriented outer
Side is protruded；And second convex portion, its adjacent radial outside that is positioned against is protruded in a second direction with first convex portion,
And support the valve body between first convex portion, the first rib is formed at first convex portion and described second convex
The wider convex portion of circumferential width in portion.By this structure, when flattening first rib, valve body holding is unlikely to deform with convex portion.
In the present invention, it is preferred to which the circumferential width of second convex portion is wider than the circumferential width of first convex portion.According to
This structure, makes rotary shaft along during the first direction rotation for producing load, larger load is born in the second convex portion, even if but
In this case, the second convex part deformation can also be suppressed.
In the present invention, it is preferred to which the distal portion of first convex portion is inside by footpath in the terminal part than second convex portion
The position of side, the valve body has：Base portion, it around the axis parallel with the center of rotation axis of the rotor can rotate
Mode is supported between first convex portion and second convex portion；And terminal part, it is radially oriented outside from the base portion
It is prominent, and tilted towards the first direction and cover first convex portion from radial outside.By this structure, make rotation
Rotating shaft is along during the first direction rotation for producing load, and valve body is by fluid pressure-volume easily to closing direction displacement.
In the present invention, it is preferred to circumference of the circumferential width than radial outside of the radially inner side of the valve body holding convex portion
Narrow width.By this structure, valve body holding is difficult to be abutted with separation with the root (radially inner side) of convex portion with convex portion.Therefore,
The angle that rotor can rotate can be extended.
In the present invention, it is preferred to which second rib is protruded from the separation convex portion towards the flange part.
In the buffered device with fluid cushion device involved in the present invention, lid is filled by the fluid cushion
Put and be installed on equipment body.
In the present invention, at least one rib in first rib and the second rib is formed between rotary shaft and housing, wherein,
The first rib is protruded and radially extended, second rib from rotary shaft the be partially toward bottom wall opposed with bottom wall in side
Protrude and radially extend towards flange part from the end of the opposite side of separation convex portion, therefore in the axial direction can be abundant
Ground will be close between housing and rotor.Also, in the case that the height (prominent size) of rib is too high, delay in assembling fluid
During flushing device, rib is crushed, and rib is changed into appropriate height (prominent size).Therefore, rotary shaft is made along the direction for producing load
During rotation, the gap that can easily suppress fluid from housing and the axis direction of rotor is spilt.
Brief description of the drawings
Fig. 1 is saying for the Western-style closestool unit with the Western-style closestool for being equiped with the fluid cushion device for applying the present invention
Bright figure.
Fig. 2 (a), Fig. 2 (b) are the stereograms for applying the fluid cushion device of the present invention.
Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) are the exploded perspective views for applying the fluid cushion device of the present invention.
Fig. 4 (a), Fig. 4 (b) are the sectional views for applying the fluid cushion device of the present invention.
Fig. 5 (a), Fig. 5 (b) are the explanation figures for representing to apply the major part of the fluid cushion device of the present invention.
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d) are formed at applying the rotary shaft of the fluid cushion device of the present invention
First rib explanation figure.
Embodiment
Hereinafter, with reference to the accompanying drawings of the mode for implementing the present invention.In addition, in the following description, will in rotor 30
The direction that the central axis of rotary shaft 40 is extended is as axis L directions, in axis L directions, by the side where housing 20
As side L1, the side (side that rotary shaft 40 protrude) opposite with the place side of housing 20 is carried out as opposite side L2
Explanation.
(overall structure of buffered device and fluid cushion device 10)
Fig. 1 is the Western-style closestool unit with the Western-style closestool 1 for being equiped with the fluid cushion device 10 for applying the present invention
100 explanation figure.Fig. 2 (a), Fig. 2 (b) are the stereograms for applying the fluid cushion device 10 of the present invention, and Fig. 2 (a) is from axle
The stereogram for the fluid cushion device 10 that the opposite side L2 in line L directions is observed, Fig. 2 (b) is the side L1 sights from axis L directions
The stereogram of the fluid cushion device 10 observed.
Western-style closestool unit 100 shown in Fig. 1 has Western-style closestool 1 (buffered device) and tank 3.Western-style closestool
1 has seat toilet main body 2, resinous toilet seat 5 (cover), resinous toilet lid 6 (cover) and unit enclosure 7
Deng.Aftermentioned fluid cushion device is built-in with the inside of unit enclosure 7 is used for toilet seat and toilet lid, toilet seat 5 and closestool
Lid 6 is connected by fluid cushion device with seat toilet main body 2 respectively.
As shown in Fig. 2 (a), Fig. 2 (b), fluid cushion device 10 has columned fluid cushion device master in side L1
Body 10a.The connecting portion 10b of shaft-like is protruded from fluid cushion apparatus main body 10a towards opposite side L2, connecting portion 10b and toilet seat 5
Or toilet lid 6 is connected.The fluid cushion device 10 is in the toilet seat 5 or toilet lid 6 that erect to cover a toilet main body 2
When mode is fallen down, produce and resist the power (load) fallen down, so as to reduce the speed of falling down of toilet seat 5 or toilet lid 6.
This, connecting portion 10b mutually opposing face is tabular surface 10c, and toilet seat 5 and the phase of toilet lid 6 are prevented by tabular surface 10c
For connecting portion 10b idle running.
(structure of fluid cushion device 10)
Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are the exploded perspective view for applying the fluid cushion device 10 of the present invention, Fig. 3
(a) be from the opposite side L2 in axis L directions observe by the grade of rotor 30 from housing 20 dismantle after state exploded perspective view,
Fig. 3 (b) be from the opposite side L2 in axis L directions observe by valve body 50 from the rotary shaft 40 of rotor 30 dismantle after state
Exploded perspective view, Fig. 3 (c) be from the side L1 in axis L directions observe by the grade of rotor 30 from housing 20 dismantle after state
Exploded perspective view.Fig. 4 (a), Fig. 4 (b) are the sectional views for applying the fluid cushion device 10 of the present invention, and Fig. 4 (a) is to flow
Body buffer unit 10 along axis L cut off when sectional view, Fig. 4 (b) be opposite side L2 from axis L directions observe by fluid
Sectional view of the surge chamber 11 of buffer unit 10 along the state cut off with the direction of axis L-orthogonal.Fig. 5 (a), Fig. 5 (b) are tables
Show the explanation figure for the major part for applying the fluid cushion device 10 of the present invention, Fig. 5 (a) is the side L1 from axis L directions
It was observed that rotor 30 stereogram, Fig. 5 (b) is the stereogram for the housing 20 that the opposite side L2 from axis L directions is observed.Separately
Outside, Fig. 5 (b) also show two valve bodies 50.
As shown in Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) and Fig. 4 (a), Fig. 4 (b), fluid cushion device 10 is included in side
L1 has the housing 20 of the tubular of bottom wall 21, side L1 configurations in the rotor 30 of the inner side of housing 20 and in opposite side L2 closings
The outer cover 60 of the ring-type of the opening 29 of housing 20.Outer cover 60 is resin-made, and with annular portion 61 and out of annular portion 61
The cylindrical portion 62 that side is protruded towards side L1.
In Fig. 3 (a), Fig. 3 (b), Fig. 3 (c), Fig. 4 (a), Fig. 4 (b) and Fig. 5 (a), Fig. 5 (b), housing 20 is resin
System, and with the cylindric main part 22 extended from the outer peripheral edge of bottom wall 21 towards opposite side L2.The inner circumferential of main part 22
The internal diameter of the part 228 positioned at opposite side L2 in face 220 is more slightly larger than the internal diameter of the part 229 positioned at side L1.
The recess 210 of circle is formed with the center of the bottom wall 21 of housing 20, the circular recess 210 is towards side L1
Depression, and the side L1 of the rotary shaft 40 of rotor 30 end 49 is supported as that can rotate, leaned on relative to the recess 210
The position of radial outside is formed with the recess 211 towards side L1 two arc-shapeds being recessed.Two recesses 211 were formed in week
It is upwardly deviated from the angle position of 180 degree.
The position deviateed respectively with two recesses 211 in the circumferential, two separations are with convex portion 23 from the inner circumferential of main part 22
It is prominent that face 220 is radially oriented inner side.Two separation convex portions 23 are formed at the angle position for deviateing 180 degree in the circumferential.At this
In mode, two separations are connected with the side L1 of any one in convex portion 23 end with bottom wall 21.In the manner, point
Every trapezoidal with the section of convex portion 23, and circumferential size (thickness) is radially oriented inner side from radial outside and diminished.
Side L1 of the rotor 30 with axis L directions is configured at the rotary shaft 40 of the inner side of housing 20 and is held in rotary shaft
40 valve body 50.Rotary shaft 40 is resin-made, and with the first axle part 41 positioned at the inner side of housing 20 and than first axle
The second axle part 42 that portion 41 extends by opposite side L2 position.End of the external diameter of the first axle part 41 than the side L1 of rotary shaft 40
49 external diameter is big, and the external diameter of the second axle part 42 is bigger than the external diameter of the first axle part 41.In the manner, end 49 is formed as cylinder
Shape, and turn into the structure that shrinkage cavity during to resin forming is relaxed.In addition, the external diameter of the second axle part 42 is also than the first axle part
41 external diameter is small.
The first flange part 43 and circle of circle are formed between the first axle part 41 and the second axle part 42 in rotary shaft 40
Second flange part 44 of shape, wherein, the first circular flange part 43 is adjacent with the first axle part 41 in opposite side L2, the circle
Second flange part 44 of shape is opposed across specified interval with the first flange part 43 in opposite side L2.Therefore, in the first flange part
43 and second groove 45 for being formed with ring-type between flange part 44.Therefore, if O-ring 70 is assemblied in into groove 45 and by rotary shaft 40
The first axle part 41 is configured at the inner side of housing 20, then O-ring 70 in the inner peripheral surface 220 of the main part 22 of housing 20 with being located at one
Side L1 part 229 is abutted, and the space as clamped by housing 20 with rotary shaft 40 is closed.Also, by the bottom wall 21 of housing 20
The space divided with the first flange part 43 is by closed so that as surge chamber 11, first flange part 43 is in opposite side L2 and first axle
Portion 41 is opposed.Now, filled with fluids 12 (bonding fluid) such as oil in surge chamber 11.Then, by the cylindrical portion 62 of outer cover 60
It is inserted between the second axle part 42 of rotary shaft 40 and the main part 22 of housing 20, is fixed outer cover 60 by methods such as welding,
Then constitute fluid cushion device 10.
In this condition, the side L1 of rotary shaft 40 end 49 is supported on the bottom 21 of housing 20 in revolvable mode
Recess 210, and the second axle part 42 is supported to rotate in the inner side of the cylindrical portion 62 of outer cover 60, also, the second axle part
42 a part of insertion outer cover 60, to constitute connecting portion 10b.
(detailed construction in surge chamber 11)
As shown in Fig. 4 (a), Fig. 4 (b) and Fig. 5 (a), Fig. 5 (b), in surge chamber 11, two of housing 20 separate use
The radially inner side end 231 of convex portion 23 is contacted with the outer peripheral face 410 of the first axle part 41 of rotary shaft 40.
Also, the outer axial face 410 of the first axle part 41 in rotary shaft 40 is formed with two valve body supporting convex portions 46, described
Two valve body supportings are radially oriented outside with convex portion 46 from the angle position for deviateing 180 degree in the circumferential, in the two valve body branch
Hold and be supported with valve body 50 respectively with convex portion 46.Here, two valve body supportings with any one in convex portion 46 all with from positioned at
The side L1 of rotary shaft 40 49 parts apart from the opposite side L2 of the amount of given size in end are starting point, along axis L directions
The first flange part 43 is extended to, two valve body supportings are convex all with first with the opposite side L2 of any one in convex portion 46 end
Edge 43 is connected.
It is formed with valve body supporting with the radial outside portion of convex portion 46 and is radially oriented the He of the first convex portion 461 protruding outside
Second convex portion 462, second convex portion 462 radial outside that is positioned against adjacent with the first convex portion 461 on second direction B is dashed forward
Go out, groove 460 is formed between the first convex portion 461 and the second convex portion 462.First convex portion 461 with it is any in the second convex portion 462
The opposite side L2 of one end is all connected with the first flange part 43.
The inner peripheral surface of groove 460 is supported with valve body in the arc-shaped bent in the range of more than about 180 degree in groove 460
50.In the manner, the circumferential width of the second convex portion 462 is wider than the circumferential width of the first convex portion 461.Also, the first convex portion 461
Distal portion in than the second convex portion 462 terminal part lean on radially inner side position.Also, the radial direction of valve body supporting convex portion 46
The circumferential width of inner side is narrower than the circumferential width of radial outside.
Valve body 50 includes base portion 51 and terminal part 52, and the section of the base portion 51 is in circular, and base portion 51 is with energy
Enough modes rotated around the axis parallel with axis L are supported on the groove 460 between the first convex portion 461 and the second convex portion 462, described
The section of terminal part 52 is convex, and is radially oriented the protruding outside and court in the way of covering the first convex portion 461 from base portion 51
Tilted to first direction A, the part of the radial outside of terminal part 52 is located at leans on footpath than the first convex portion 461 and the second convex portion 462
Position laterally.
(closed structure in the axis L directions in surge chamber 11)
Identical with convex portion 46 with valve body supporting, valve body 50 also extends along axis L directions, the opposite side L2 of valve body 50 end
56 contact with the first flange part 43.Therefore, it is almost very close to each other between the flange part 43 of valve body 50 and first.Therefore, fluid 12
It will not pass through between the flange part 43 of valve body 50 and first.On the other hand, the side L1 of valve body 50 end 57 is located at than valve body
Supporting is slightly closer to opposite side L2 position with the side L1 of convex portion 46 end.Therefore, side L1 is being depended on relative to valve body 50
Position, there is small clearance G 0 between the inner peripheral surface 220 of valve body supporting convex portion 46 and the main part 22 of housing 20.Cause
This, fluid can slightly pass through via clearance G O.
Although end face 417 and the valve body supporting side L1 of convex portion 46 end in the side L1 of the first axle part 41
There is small gap between 467 and the bottom wall 21 of housing 20, but be formed at the first axle part 41 side L1 end face 417 with
And valve body the supporting first rib (not shown in Fig. 4 (a)) of the side L1 of convex portion 46 end 467 and the bottom wall 21 of housing 20
Contact.Therefore, fluid 12 not between the side L1 of the first axle part 41 end face 417 and bottom wall 21 with valve body supporting with 46
Pass through between side L1 end face 417 and bottom wall 21.On the first rib, described hereinafter with reference to Fig. 6 etc..
Although existing between the opposite side L2 of separation convex portion 23 end face 236 and the first flange part 43 of rotary shaft 40
There is small gap, but be formed at the second rib of the opposite side L2 of separation convex portion 23 end face 236 and (do not scheme in Fig. 4 (a)
Show) contacted with the first flange part 43.Therefore, fluid 12 is not convex with the opposite side L2 of convex portion 23 end face 236 and first from separation
Pass through between edge 43.On second rib, described hereinafter with reference to Fig. 6 etc..
(action)
In the fluid cushion device 10 so constituted, if rotor 30 (rotary shaft 40) revolves around axis L towards first direction A
Turn, then valve body 50 is pressed and rotated by fluid, terminal part 52 is moved towards the side of the second convex portion 462.As a result, terminal part 52
Radial outside portion is abutted with the inner peripheral surface 220 of the main part 22 of housing 20.Therefore, in valve body 50 and valve body supporting convex portion
In 46, fluid is prevented to be moved towards second direction B, as a result, applying load (resistance) to rotor 30 (rotary shaft 40).I.e.
Make in this case, side L1 position, valve body supporting convex portion 46 and the main part 22 of housing 20 are being leaned on than valve body 50
Inner peripheral surface 220 between have small clearance G 0 in vain.Therefore, in valve body 50 and valve body supporting with convex portion 46, it is allowed to fluid
Slightly towards second direction B movements.Therefore, although apply load to rotor 30 (rotary shaft 40), but allow the (rotary shaft of rotor 30
40) with compared with low velocity towards first direction A rotate.
On the other hand, if rotor 30 (rotary shaft 40) rotates around axis L towards second direction B, valve body 50 is by fluid pressure
And rotate, terminal part 52 is moved towards the side of the first convex portion 461.As a result, in the part of the radial outside of terminal part 52 and shell
There is gap between the inner peripheral surface of the main part 22 of body 20.Therefore, in valve body 50 and valve body supporting with convex portion 46, it is allowed to flow
Body is moved towards first direction A, as a result, not applying load to rotor 30 (rotary shaft 40).
(structure of rib)
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d) are formed at applying the rotation of the fluid cushion device 10 of the present invention
The explanation figure of the first rib 16 of axle 40, Fig. 6 (a) is by the explanation figure of the side L1 of rotary shaft 40 end enlarged representation, Fig. 6
(b) be the side L1 for representing rotary shaft 40 end face rearview, Fig. 6 (c) be represent flatten before first rib 16 section shape
The explanation figure of shape, Fig. 6 (d) is the explanation figure for the cross sectional shape for representing the first rib 16 after flattening.
As shown in Fig. 5 (a) and Fig. 6 (a), Fig. 6 (b), in the manner, in surge chamber 11, in order to limit fluid 12
Between rotary shaft 40 and bottom wall 21 by and form first rib 16, the first rib 16 exists from bottom wall 21 and rotary shaft 40
A side in part opposed with bottom wall 21 side L1 protrudes and radially extended towards the opposing party.In the manner, first
Rib 16 is formed at the part opposed with bottom wall 21 in side L1 of rotary shaft 40.
More particularly, as shown in Fig. 5 (a), Fig. 5 (b) and Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d), in rotation
The side L1 of the first axle part 41 in the part opposed with bottom wall 21 in side L1 of rotating shaft 40 end face 417 and valve body is kept
Be formed with the side L1 of convex portion 46 end 467 towards bottom wall 21 protrude first rib 16, first rib 16 from end 49
The connected position of outer peripheral face radially extend the end of the radial outside to valve body holding convex portion 46.
First rib 16 is formed at the side L1 of the second convex portion 462 end face, and second convex portion 462 is being formed at valve body guarantor
Hold in the first convex portion 461 and the second convex portion 462 with convex portion 46, the circumferential width of second convex portion 462 is than the first convex portion
461 circumferential width is wide and extends to radial outside.
When rotary shaft 40 is configured at the inner side of housing 20 by assembling fluid cushion device 10, constitute in the above described manner
First rib 16 is abutted with bottom wall 21.Also, in the case where the height (prominent size) of first rib 16 is too high, first rib 16 is the bottom of at
Between the side L1 of wall 21 and the first axle part 41 end face 417 and bottom wall 21 and valve body holding are crushed between convex portion 46.
In the manner, first rib 16 is contacted in the state of being crushed with bottom wall 21.Therefore, fluid 12 is not from the one of the first axle part 41
Lead between the side L1 of between side L1 end face 417 and bottom wall 21 and valve body supporting use convex portion 46 end face 417 and bottom wall 21
Cross.
Here, as shown in Fig. 6 (c), the section of the first rib 16 before flattening is triangular in shape.Therefore, in the prominent of first rib 16
On outgoing direction, the width of the root 161 of first rib 16 is wider than the width of end side 162.Also, as shown in Fig. 6 (d), after flattening
First rib 16 section it is trapezoidal, on the projected direction of first rib 16, the width of the root 161 of the first rib 16 after flattening
Width than end side 163 is wide.Also, the end side 163 on the projected direction of first rib 16 is orthogonal relative to axis L directions
Face.
Also, in the manner, as shown in figure 5, housing 20 separation with the opposite side L2 of convex portion 23 end 236 with
And first flange part 43 side L1 end face 436 in a side be formed with for protruding and radially extending towards the opposing party
Two ribs 17.In the manner, it is formed with the opposite side L2 of the separation convex portion 23 of housing 20 end 236 towards the first flange
The second rib 17 that the side L1 in portion 43 end face 436 is protruded and radially extended.Separate here, the second rib 17 is formed at convex
The opposite side L2 in portion 23 end 236 it is whole radially.
When rotary shaft 40 is configured at the inner side of housing 20 by assembling fluid cushion device 10, constitute in the above described manner
Second rib 17 is contacted with the first flange part 43.Also, in the case where the height (prominent size) of the second rib 17 is too high, the second rib
17 are crushed between the flange part 43 of end 236 and first of the separation with the opposite side L2 of convex portion 23.In the manner, the second rib
17 contact in the state of being crushed with the first flange part 43.Therefore, fluid 12 is not another with convex portion 23 in the separation of housing 20
Pass through between the side L2 flange part 43 of end 236 and first.
Here, identical with first rib 16, such as shown in Fig. 6 (c), the section of the second rib 17 before flattening is triangular in shape.Therefore,
On the projected direction of the second rib 17, the width of the root 171 of the second rib 17 is wider than the width of end side 172.Also, with first
Rib 16 is identical, and such as shown in Fig. 6 (d), the section of the second rib 17 after flattening is trapezoidal, on the projected direction of the second rib 17, pressure
The width of the root 171 of the second rib 17 after flat is wider than the width of end side 173.Also, second rib 17 identical with first rib 16
Projected direction on end side 173 be the face orthogonal relative to axis L directions.
(main efficacy results of the manner)
It is as described above, in the fluid cushion device 10 of the manner, between the rotary shaft 40 and housing 20 of rotor 30,
Rotary shaft 40 the part opposed with the bottom wall 21 of housing 20 in side L1 (the side L1 of the first axle part 41 end face 417 with
And valve body keeps the end 467 of the side L1 with convex portion 46) first rib 16 protruded towards bottom wall 21 is formed with, therefore, it is possible to
Make fully to be close between housing 20 and the axis L directions of rotor 30.Also, even in the height (prominent size) of first rib 16
In the case of too high, when assembling fluid cushion device 10, first rib 16 is crushed, therefore first rib 16 is changed into suitable height
(prominent size).So, even if rotary shaft 40, the precision of housing 20 and assembly precision are not extreme height, make rotary shaft 40
When being rotated along the direction for producing load, it also can easily suppress fluid from the gap in housing 20 Yu the axis L directions of rotor 30
Spill.Therefore, because the sealing state of surge chamber 11 is stable, thus can stablize toilet seat 6 and when toilet lid 5 is fallen down when
Between.Also, due to the relatively low fluid 12 of viscosity is used as into fluid 12, therefore, it is possible to reduce the load to the grade application of valve body 50.And
And, due to the less expensive of the relatively low fluid 12 of viscosity, therefore, it is possible to reduce the cost of fluid cushion device 10.
Also, between the rotary shaft 40 and housing 20 of rotor 30, housing 20 separation with convex portion 23 in opposite side
End 236 opposed with the first flange part 43 of rotary shaft 40 L2 is formed with the second rib 17 protruded towards the first flange part 43,
Therefore, it is possible to make fully to be close between housing 20 and the axis L directions of rotor 30.Also, it is (prominent even in the height of the second rib 17
Go out size) it is too high in the case of, assemble fluid cushion device 10 when, the second rib 17 is also crushed, so that the second rib 17 is changed into
Appropriate height (prominent size).Therefore, even if rotary shaft 40, the precision of housing 20 and assembly precision are not extreme height,
Make rotary shaft 40 along the direction for producing load rotate when, also can easily suppress axis L of the fluid from housing 20 and rotor 30
The gap in direction is spilt.Therefore, because the sealing state of surge chamber 11 is stable, so toilet seat 6 can be stablized and toilet lid 5 is fallen
Time when lower.Also, due to by the relatively low reactive fluid 12 of fluid 12 of viscosity, therefore, it is possible to reduce to the grade application of valve body 50
Load.Also, due to the less expensive of the relatively low fluid 12 of viscosity, therefore, it is possible to reduce fluid cushion device 10 into
This.
Also, the end side 173 of the rib 17 of end side 163 and second of first rib 16 is orthogonal relative to axis L directions
Face.That is, when assembling fluid cushion device 10, the rib 17 of first rib 16 and second is crushed.Therefore, because first
The rib 17 of rib 16 and second turns into appropriate height (prominent size), therefore rotary shaft 40 is rotated along the direction for producing load
When, fluid can be reliably suppressed and spilt from housing 20 and the gap in the axis L directions of rotor 30.Also, due to first rib 16
The rib 17 of root 161 and second root 171 width than the end side 162,163 of first rib 16 and the end of the second rib 17
The width of side 172,173 is wide, therefore when assembling buffer unit 10, the rib 17 of first rib 16 and second is easily crushed.
Here, separation is provided with identical number with convex portion 46 in the circumferential respectively with convex portion 23 and valve body holding, and
And be arranged in the circumferential across the multiple positions (two positions) being equally angularly spaced.Therefore because surge chamber 11 is divided
For multiple (two), therefore, it is possible to produce larger load.On the other hand, if surge chamber 11 is divided, fluid is intended to from housing
20 are correspondingly increased with the position that the gap of the axis direction of rotor 30 is spilt.But by present embodiment, due to passing through
Fluid can be suppressed and spill by forming the rib 17 of first rib 16 and second, and surge chamber 11 is divided into multiple and band therefore, it is possible to eliminate
The adverse effect come.
Also, within the casing 20, separate and be connected with the side L1 of convex portion 23 end with bottom wall 21, in rotary shaft 40,
Valve body keeps the end of the opposite side L2 with convex portion 46 to be connected with the first flange part 43, therefore, will not occur fluid and be used from separation
The opposite side of situation about being spilt between the side L1 of convex portion 23 end and bottom wall 21 and fluid from valve body holding convex portion 46
Situation about being spilt between L2 end and the first flange part 43.
Here, first rib 16 is formed at the circumference in the first convex portion 461 and the second convex portion 462 of valve body holding convex portion 46
Second convex portion 462 of wider width.Therefore, when flattening first rib 16, valve body holding is unlikely to deform with convex portion.Also, due to
The circumferential width of the second convex portion 462 positioned at second direction B in first convex portion 461 and the second convex portion 462 is than the first convex portion
461 circumferential width is wide, therefore when making rotary shaft 40 be rotated along the first direction A for producing load, even if the second convex portion 462 is held
By larger load, it can also suppress the deformation or breakage of the second convex portion 462.
Also, the distal portion of the first convex portion 161 leans on the position of radially inner side in the terminal part than the second convex portion 462,
In valve body 50, terminal part 52 be radially oriented from base portion 51 it is protruding outside, towards first direction A tilt and from radial outside covering
First convex portion 461.Therefore, when making rotary shaft 40 be rotated along the first direction A for producing load, valve body 50 is easily by fluid pressure
And to close direction displacement.
Also, because valve body holding is narrower than the circumferential width of radial outside with the circumferential width of the radially inner side of convex portion 46,
Therefore valve body keeps convex portion 46 to be difficult to be contacted with separation with the radial inside portion (root) of convex portion 23.Turn therefore, it is possible to extend
The angle that son 30 can rotate.
Other embodiment
In the above-described embodiment, rotary shaft 40 and housing 20 are resin-made, but rotary shaft 40 and housing 20 are alternatively
Metal system.
Claims (12)
1. a kind of fluid cushion device, including：
Housing, it is cylindrical in shape, and has bottom wall in the side of axis direction；
Rotor, it has rotary shaft and valve body, wherein, the rotary shaft has flange part, in the inner side of the housing, described convex
Edge is opposed with the bottom wall in the opposite side of the axis direction, and divides surge chamber between the bottom wall, described
Valve body is held in the rotary shaft；And
Fluid, it is filled in the surge chamber,
The housing, which has from the inner peripheral surface of the housing, is radially oriented the prominent separation convex portion in inner side,
The rotor, which has, to be radially oriented valve body that is protruding outside and keeping the valve body from the outer peripheral face of the rotary shaft and protects
Hold and use convex portion,
At least one rib in first rib and the second rib is formed between the rotary shaft and the housing, wherein, described
One rib is protruded and radially extended from the rotary shaft the be partially toward bottom wall opposed with the bottom wall in the side,
Second rib is protruded and radially extended from the end of the opposite side of the separation convex portion towards the flange part,
On the projected direction of the rib, the width of the root of the rib is wider than the width of end side.
2. fluid cushion device according to claim 1, it is characterised in that
The separation is provided with identical number in the circumferential respectively with convex portion and the valve body holding with convex portion, and sets
In in the circumferential across the multiple positions being equally angularly spaced.
3. fluid cushion device according to claim 1, it is characterised in that
It is formed with the first rib and the second rib both sides.
4. fluid cushion device according to claim 1, it is characterised in that
The end of the side of the separation convex portion is connected with the bottom wall,
The end of the opposite side of the valve body holding convex portion is connected with the flange part.
5. fluid cushion device according to claim 1, it is characterised in that
On the projected direction of the rib, the end side of the rib is the face orthogonal relative to the axis direction.
6. fluid cushion device according to claim 1, it is characterised in that
The first rib keeps using from the valve body in the part opposed with the bottom wall in the side of the rotary shaft
The end of the side of convex portion is protruded towards the bottom wall.
7. fluid cushion device according to claim 6, it is characterised in that
The direction of load is produced when the rotor is rotated as first direction, side opposite to the first direction is made
During for second direction,
The valve body holding has with convex portion：
First convex portion, it is radially oriented protruding outside；And
Second convex portion, its adjacent radial outside that is positioned against is protruded in a second direction with first convex portion, and
The valve body is supported between first convex portion,
The wider convex portion of circumferential width that the first rib is formed in first convex portion and second convex portion.
8. fluid cushion device according to claim 7, it is characterised in that
The circumferential width of second convex portion is wider than the circumferential width of first convex portion.
9. the fluid cushion device according to claim 7 or 8, it is characterised in that
The distal portion of first convex portion leans on the position of radially inner side in the terminal part than second convex portion,
The valve body has：
Base portion, it in the way of the axis rotation parallel with the center of rotation axis of the rotor can be supported on described first
Between convex portion and second convex portion；And
Terminal part, it is radially oriented protruding outside from the base portion, and is tilted and from radial outside towards the first direction
Cover first convex portion.
10. fluid cushion device according to claim 1, it is characterised in that
The circumferential width of the radially inner side of the valve body holding convex portion is narrower than the circumferential width of radial outside.
11. fluid cushion device according to claim 1, it is characterised in that
Second rib is protruded from the separation convex portion towards the flange part.
12. a kind of buffered device, it has the fluid cushion device any one of claim 1 to 11, its feature
It is,
Lid is installed on equipment body by the fluid cushion device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014073089A JP6400932B2 (en) | 2014-03-31 | 2014-03-31 | Fluid damper device and damper equipped device |
| JP2014-073089 | 2014-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948633A CN104948633A (en) | 2015-09-30 |
| CN104948633B true CN104948633B (en) | 2017-10-24 |
Family
ID=54134647
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184373.9U Withdrawn - After Issue CN204664262U (en) | 2014-03-31 | 2015-03-30 | Fluid cushion device and buffered device |
| CN201510142332.8A Active CN104948633B (en) | 2014-03-31 | 2015-03-30 | Fluid cushion device and buffered device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184373.9U Withdrawn - After Issue CN204664262U (en) | 2014-03-31 | 2015-03-30 | Fluid cushion device and buffered device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6400932B2 (en) |
| CN (2) | CN204664262U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6400932B2 (en) * | 2014-03-31 | 2018-10-03 | 日本電産サンキョー株式会社 | Fluid damper device and damper equipped device |
| JP2017133668A (en) * | 2016-01-29 | 2017-08-03 | 日本電産サンキョー株式会社 | Fluid damper device and damper-equipped apparatus |
| JP2017198270A (en) * | 2016-04-27 | 2017-11-02 | 日本電産サンキョー株式会社 | Fluid damper device, apparatus with damper, and western-style toilet unit |
| JP2017198271A (en) * | 2016-04-27 | 2017-11-02 | 日本電産サンキョー株式会社 | Fluid damper device, apparatus with damper, and western-style toilet unit |
| EP3517007B1 (en) * | 2018-01-29 | 2020-01-22 | Geberit International AG | Wc fitting with pivotable part |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204664262U (en) * | 2014-03-31 | 2015-09-23 | 日本电产三协株式会社 | Fluid cushion device and buffered device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255396A (en) * | 1991-07-26 | 1993-10-26 | Matsushita Electric Industrial Co., Ltd. | Sanitary cleaning device including a rotation deceleration device |
| JP3053156B2 (en) * | 1994-04-28 | 2000-06-19 | 日立粉末冶金株式会社 | Fluid pressure damper |
| JP4048452B2 (en) * | 1997-12-16 | 2008-02-20 | トックベアリング株式会社 | Shock absorber |
| JP4462887B2 (en) * | 2003-10-06 | 2010-05-12 | トックベアリング株式会社 | Rotating damper |
| JP4350720B2 (en) * | 2006-05-02 | 2009-10-21 | トックベアリング株式会社 | Damper device |
| KR100875475B1 (en) * | 2007-12-18 | 2008-12-22 | 동우정밀(주) | Hinge assembly for home bar of refrigerator and refrigerator using the same |
| JP4965474B2 (en) * | 2008-02-04 | 2012-07-04 | スガツネ工業株式会社 | Damper device |
| JP2012197863A (en) * | 2011-03-22 | 2012-10-18 | Kyb Co Ltd | Rotary damper |
| JP5738656B2 (en) * | 2011-04-06 | 2015-06-24 | 株式会社ニフコ | damper |
| JP2014009774A (en) * | 2012-06-29 | 2014-01-20 | Nidec Sankyo Corp | Damper apparatus |
-
2014
- 2014-03-31 JP JP2014073089A patent/JP6400932B2/en active Active
-
2015
- 2015-03-30 CN CN201520184373.9U patent/CN204664262U/en not_active Withdrawn - After Issue
- 2015-03-30 CN CN201510142332.8A patent/CN104948633B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204664262U (en) * | 2014-03-31 | 2015-09-23 | 日本电产三协株式会社 | Fluid cushion device and buffered device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104948633A (en) | 2015-09-30 |
| JP6400932B2 (en) | 2018-10-03 |
| JP2015194230A (en) | 2015-11-05 |
| CN204664262U (en) | 2015-09-23 |
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