CN204664262U - Fluid cushion device and buffered device - Google Patents
Fluid cushion device and buffered device Download PDFInfo
- Publication number
- CN204664262U CN204664262U CN201520184373.9U CN201520184373U CN204664262U CN 204664262 U CN204664262 U CN 204664262U CN 201520184373 U CN201520184373 U CN 201520184373U CN 204664262 U CN204664262 U CN 204664262U
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- CN
- China
- Prior art keywords
- protuberance
- rib
- valve body
- fluid cushion
- cushion device
- 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.)
- Withdrawn - After Issue
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Classifications
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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
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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 utility model provides a kind of fluid cushion device and has the buffered device of fluid cushion device, described fluid cushion device, when making running shaft rotate along the direction producing load, can easily spill between housing and the axial direction of rotor by suppression fluid.In the buffer cell (11) of fluid cushion device (10), in order to limit fluid (12) is passed through between running shaft (40) and diapire (21), be formed towards the outstanding first rib (16) also radially extended of diapire (21) at the end face (417) of side (L1) of the first axle part (41) in the part that side (L1) is opposed with diapire (21) of running shaft (40) and the end (467) of the side (L1) of valve body maintenance protuberance (46).When running shaft (40) being configured at the inner side of housing (20) assembling fluid cushion device (10), first rib (16) is crushed and abuts with diapire (21).
Description
Technical field
The utility model relates to a kind of between housing and rotor, be filled with fluid fluid cushion device and buffered device.
Background technique
Be filled with in the fluid cushion device of fluid between housing and rotor, be configured with the running shaft of rotor in the inner side of the housing of bottomed cylindrical, be configured with valve body at this running shaft.At this, be formed with the lip part opposed in the axial direction with the diapire of housing at running shaft, in the buffer cell divided between diapire and lip part, be configured with wet goods fluid.Further, be formed towards the outstanding separation protuberance of radially inner side at housing, be formed at running shaft and give prominence to towards radial outside and to keep the valve body maintenance protuberance of valve body.Therefore, owing to rotating along first direction when running shaft, when valve body is closed condition, fluid is compressed between valve body maintenance protuberance and separation protuberance, so apply load to running shaft.On the other hand, when running shaft reverses towards second direction, valve body maintenance protuberance and separation male portion from thus valve body is open state time, fluid passes through, so do not apply load (with reference to patent documentation 1) to running shaft.
Patent documentation 1: Japanese Unexamined Patent Publication 2010-151306 publication
In the fluid cushion device that patent documentation 1 is recorded, when running shaft rotates along first direction, if fluid spills from the gap of the axial direction of housing and rotor because of carelessness, then can not obtain sufficient load.Therefore, need the dimensional accuracy improving housing and running shaft, in case fluid spills from the gap of the axial direction of housing and rotor, but it is from the angle of precision when dimensional accuracy and the assembling of housing and running shaft, more difficult by being close to fully between housing with rotor in the axial direction.
Model utility content
In view of above problem, technical problem of the present utility model is to provide a kind of fluid cushion device and has the buffered device of this fluid cushion device, and described fluid cushion device can easily suppress the fluid when making running shaft rotate along the direction producing load to spill between housing and the axial direction of rotor.
In order to solve the problem, the fluid cushion device involved by the utility model comprises: housing, and it is tubular, and has diapire in the side of axial direction, rotor, it has running shaft and valve body, wherein, described running shaft has lip part, and in the inner side of described housing, described lip part is opposed with described diapire at the opposite side of described axial direction, and divide buffer cell between described diapire, described valve body is held in described running shaft, and fluid, it is filled in described buffer cell, described housing has the separation protuberance outstanding from the inner peripheral surface of this housing towards radially inner side, described rotor has the valve body maintenance protuberance given prominence to from the outer circumferential face of described running shaft towards radial outside and keep described valve body, at least one rib in first rib and second rib is formed between described running shaft and described housing, wherein, described first rib is outstanding from the part opposed with described diapire in described side of described running shaft towards described diapire also radially to be extended, described second rib is outstanding from the end of the described opposite side of described separation protuberance towards described lip part also radially to be extended.
In the utility model, at least one rib in first rib and second rib is formed between running shaft and housing, wherein, described first rib is outstanding from the part opposed with diapire in described side of running shaft towards diapire also radially to be extended, described second rib is outstanding from the end of the opposite side of separation protuberance towards lip part also radially to be extended, therefore, it is possible to make in the axial direction to be close to fully between housing and rotor.Further, even if when the height (outstanding size) of rib is too high, when assembling fluid cushion device, rib is crushed, thus rib also can become suitable height (outstanding size).Therefore make running shaft along produce the direction of load rotate time, can easily spill from the gap of the axial direction of housing and rotor by suppression fluid.
In the utility model, preferred described separation protuberance and described valve body maintenance protuberance are provided with identical number respectively in the circumferential, and are arranged in the circumferential across multiple positions of equal angle intervals.In the case of that construction, because buffer cell is divided into multiple, therefore, it is possible to produce larger load.On the other hand, if be divided into by buffer cell multiple, then the position that fluid spills for the gap of the axial direction from housing and rotor just correspondingly increases, but passes through the utility model, easily can spill by suppression fluid, buffer cell is divided into multiple and adverse effect that is that produce therefore, it is possible to eliminate.In the utility model, be preferably formed with described first rib and described second rib both sides.By this structure, can reliably spill from the gap of the axial direction of housing and rotor by suppression fluid.
In the utility model, the end of the described side of preferred described separation protuberance is connected with described diapire, and the end of the described opposite side of described valve body maintenance protuberance is connected with described lip part.By this structure, fluid can not be there is from situation about spilling between the end and diapire of the side of separation protuberance and fluid from situation about spilling between the end and lip part of the opposite side of valve body maintenance protuberance.
In the utility model, preferably on the projected direction of described rib, the end side of described rib is the face orthogonal relative to described axial direction.That is, preferably when assembling fluid cushion device, rib is easily crushed.By this structure, because rib becomes suitable height (outstanding size), therefore when making running shaft rotate along the direction producing load, can reliably spill from the gap of the axial direction of housing and rotor by suppression fluid.
In the utility model, preferably on the projected direction of described rib, the width of the root of described rib is wider than the width of end side.By this structure, when assembling fluid cushion device, rib is easily crushed.
In the utility model, preferred described first rib is outstanding from the end of the described side of the described valve body maintenance protuberance the part that described side is opposed with described diapire of described running shaft towards described diapire.
In the utility model, preferably produce the direction of load when being rotated by described rotor as first direction, during using side opposite to the first direction as second direction, described valve body maintenance protuberance has: the first protuberance, and it is given prominence to towards radial outside; And second protuberance, it is given prominence to towards radial outside in the position adjacent in a second direction with described first protuberance, and support described valve body between described first protuberance, described first rib is formed at the wider protuberance of circumferential width in described first protuberance and described second protuberance.By this structure, when flattening first rib, valve body maintenance protuberance is not yielding.
In the utility model, preferably the circumferential width of described second protuberance is wider than the circumferential width of described first protuberance.According to this structure, when making running shaft rotate along the first direction producing load, the second protuberance bears larger load, but even if in this case, also can suppress the second convex part deformation.
In the utility model, preferably the distal portion of described first protuberance leans on the position of radially inner side in the terminal part than described second protuberance, described valve body has: base portion, and it is supported between described first protuberance and described second protuberance in the mode that can rotate around the axis of the rotating center axis being parallel of described rotor; And terminal part, it is outstanding from described base portion towards radial outside, and tilts towards described first direction and cover described first protuberance from radial outside.By this structure, when making running shaft rotate along the first direction producing load, valve body is subject to fluid pressure-volume easily to closing direction displacement.
In the utility model, the circumferential width of the radially inner side of preferred described valve body maintenance protuberance is narrower than the circumferential width of radial outside.By this structure, valve body maintenance protuberance not easily abuts with the root (radially inner side) of separation protuberance.Therefore, it is possible to the angle that expansion rotor can rotate.
In the utility model, preferred described second rib is outstanding from described separation protuberance towards described lip part.
In the buffered device with the fluid cushion device involved by the utility model, cover and be installed on equipment body by described fluid cushion device.
In the utility model, at least one rib in first rib and second rib is formed between running shaft and housing, wherein, described first rib is outstanding from the part opposed with diapire in side of running shaft towards diapire also radially to be extended, described second rib is outstanding from the end of the opposite side of separation protuberance towards lip part also radially to be extended, and therefore can be close between housing and rotor fully in the axial direction.Further, even if when the height (outstanding size) of rib is too high, when assembling fluid cushion device, rib is crushed, and rib becomes suitable height (outstanding size).Therefore, make running shaft along produce the direction of load rotate time, can easily spill from the gap of the axial direction of housing and rotor by suppression fluid.
Accompanying drawing explanation
Fig. 1 is the explanatory drawing with the Western-style toilet unit being equiped with the Western-style toilet applying fluid cushion device of the present utility model.
Fig. 2 (a), Fig. 2 (b) are the stereograms applying fluid cushion device of the present utility model.
Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) are the exploded perspective views applying fluid cushion device of the present utility model.
Fig. 4 (a), Fig. 4 (b) are the sectional views applying fluid cushion device of the present utility model.
Fig. 5 (a), Fig. 5 (b) are the explanatory drawings representing the major component applying fluid cushion device of the present utility model.
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d) are the explanatory drawings of the first rib being formed at the running shaft applying fluid cushion device of the present utility model.
Embodiment
Hereinafter, with reference to the accompanying drawings of for implementing mode of the present utility model.In addition, in the following description, in rotor 30, the direction extended by the central axis of running shaft 40 is as axis L direction, in axis L direction, using the side at housing 20 place as side L1, side (side that running shaft 40 is outstanding) contrary for the side, place with housing 20 is described as opposite side L2.
(overall structure of buffered device and fluid cushion device 10)
Fig. 1 is the explanatory drawing with the Western-style toilet unit 100 being equiped with the Western-style toilet 1 applying fluid cushion device 10 of the present utility model.Fig. 2 (a), Fig. 2 (b) are the stereograms applying fluid cushion device 10 of the present utility model, Fig. 2 (a) is the stereogram of the fluid cushion device 10 observed from the opposite side L2 in axis L direction, and Fig. 2 (b) is the stereogram of the fluid cushion device 10 observed from the side L1 in axis L direction.
Western-style toilet unit 100 shown in Fig. 1 has Western-style toilet 1 (buffered device) and tank 3.Western-style toilet 1 has a toilet main body 2, resinous toilet seat 5 (cover), resinous toilet lid 6 (cover) and unit enclosure 7 etc.Be built-in with aftermentioned fluid cushion device in the inside of unit enclosure 7 for toilet seat and toilet lid, toilet seat 5 and toilet lid 6 are connected with seat toilet main body 2 respectively by fluid cushion device.
As shown in Fig. 2 (a), Fig. 2 (b), fluid cushion device 10 has columned fluid cushion apparatus main body 10a at side L1.The joint 10b of shaft-like is outstanding from fluid cushion apparatus main body 10a towards opposite side L2, and joint 10b is connected with toilet seat 5 or toilet lid 6.This fluid cushion device 10, when the toilet seat 5 erected or toilet lid 6 are fallen down in the mode covering seat toilet main body 2, produces this power of falling down (load) of opposing, thus reduces the speed of falling down of toilet seat 5 or toilet lid 6.At this, the mutually opposing face of joint 10b is tabular surface 10c, prevents toilet seat 5 and toilet lid 6 from dallying relative to joint 10b by this tabular surface 10c.
(structure of fluid cushion device 10)
Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are the exploded perspective views applying fluid cushion device 10 of the present utility model, Fig. 3 (a) be from the opposite side L2 in axis L direction observe rotor 30 grade is dismantled from housing 20 after the exploded perspective view of state, Fig. 3 (b) be from the opposite side L2 in axis L direction observe valve body 50 is dismantled from the running shaft 40 of rotor 30 after the exploded perspective view of state, Fig. 3 (c) be from the side L1 in axis L direction observe rotor 30 grade is dismantled from housing 20 after the exploded perspective view of state.Fig. 4 (a), Fig. 4 (b) are the sectional views applying fluid cushion device 10 of the present utility model, Fig. 4 (a) is sectional view when being cut off along axis L by fluid cushion device 10, Fig. 4 (b) be from observe the buffer cell 11 of fluid cushion device 10 is cut off along the direction with axis L-orthogonal of the opposite side L2 in axis L direction the sectional view of state.Fig. 5 (a), Fig. 5 (b) are the explanatory drawings representing the major component applying fluid cushion device 10 of the present utility model, Fig. 5 (a) is the stereogram of the rotor 30 observed from the side L1 in axis L direction, and Fig. 5 (b) is the stereogram of the housing 20 observed from the opposite side L2 in axis L direction.In addition, 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 the outer cover 60 that side L1 has the housing 20 of the tubular of diapire 21, side L1 is configured in the rotor 30 of the inner side of housing 20 and the ring-type at the opening 29 of opposite side L2 enclosing housing 20.Outer cover 60 is resin-made, and has annular portion 61 and the cylindrical part 62 outstanding from the inner side of annular portion 61 towards side L1.
At Fig. 3 (a), Fig. 3 (b), Fig. 3 (c), in Fig. 4 (a), Fig. 4 (b) and Fig. 5 (a), Fig. 5 (b), housing 20 is resin-made, and has the main part 22 of the cylindrical shape extended from the outer periphery of diapire 21 towards opposite side L2.The internal diameter of the part 228 being positioned at opposite side L2 in the inner peripheral surface 220 of main part 22 is slightly larger than the internal diameter of the part 229 being positioned at side L1.
Circular recess 210 is formed in the central authorities of the diapire 21 of housing 20, the recess 210 of described circle caves in towards side L1, and the end 49 of the side L1 of the running shaft 40 of rotor 30 is supported for rotating, be formed towards the recess 211 of two arc-shapeds of side L1 depression relative to the position of this recess 210 by radial outside.Two recesses 211 are formed at the angular orientation of departing from 180 degree in the circumferential.
The position of departing from two recesses 211 respectively in the circumferential, two separations are outstanding from the inner peripheral surface 220 of main part 22 towards radially inner side with protuberance 23.Two separation protuberances 23 are formed at the angular orientation of departing from 180 degree in the circumferential.In the manner, two separation ends of the side L1 of any one in protuberance 23 are all connected with diapire 21.In the manner, the cross section of separation protuberance 23 is trapezoidal, and circumferential size (thickness) diminishes from radial outside towards radially inner side.
The side L1 that rotor 30 has axis L direction is configured at the running shaft 40 of the inner side of housing 20 and is held in the valve body 50 of running shaft 40.Running shaft 40 is resin-made, and have the inner side being positioned at housing 20 the first axle part 41 and at the second axle part 42 extended by the position of opposite side L2 than the first axle part 41.The external diameter of the first axle part 41 is larger than the external diameter of the end 49 of the side L1 of running shaft 40, and the external diameter of the second axle part 42 is larger than the external diameter of the first axle part 41.In the manner, end 49 is formed as cylindric, and becomes the structure relaxed shrinkage cavity during resin forming.In addition, the external diameter of the external diameter of the second axle part 42 also comparable the first axle part 41 is little.
The first axle part 41 on running shaft 40 and be formed with the first circular lip part 43 and the second circular lip part 44 between the second axle part 42, wherein, first lip part 43 of described circle is adjacent with the first axle part 41 at opposite side L2, the second lip part 44 of described circle opposite side L2 and the first lip part 43 opposed across the interval of specifying.Therefore, between the first lip part 43 and the second lip part 44, be formed with the groove 45 of ring-type.Therefore, if O shape ring 70 is assemblied in groove 45 and the first axle part 41 of running shaft 40 is configured at the inner side of housing 20, then O shape ring 70 abuts with the part 229 being positioned at side L1 in the inner peripheral surface 220 of the main part 22 of housing 20, airtight with the space clamped by running shaft 40 by housing 20.Further, the space divided by diapire 21 and first lip part 43 of housing 20 is by airtight using as buffer cell 11, and this first lip part 43 is opposed with the first axle part 41 at opposite side L2.Now, in buffer cell 11, be filled with wet goods fluid 12 (bonding fluid).Then, the cylindrical part 62 of outer cover 60 is inserted between the second axle part 42 of running shaft 40 and the main part 22 of housing 20, by methods such as welding, outer cover 60 is fixed, then form fluid cushion device 10.
In this condition, the end 49 of the side L1 of running shaft 40 is supported on the recess 210 of the bottom 21 of housing 20 in revolvable mode, and the second axle part 42 is supported to can rotates in the inner side of the cylindrical part 62 of outer cover 60, and, the through outer cover 60 of a part of the second axle part 42, to form joint 10b.
(detailed construction in buffer cell 11)
As shown in Fig. 4 (a), Fig. 4 (b) and Fig. 5 (a), Fig. 5 (b), in buffer cell 11, the radially inner side end 231 of two separation protuberances 23 of housing 20 contacts with the outer circumferential face 410 of the first axle part 41 of running shaft 40.
And, two valve body supporting protuberances 46 are formed in the outer axial face 410 of the first axle part 41 of running shaft 40, described two valve body supporting protuberances 46, from departing from the angular orientation of 180 degree in the circumferential towards radial outside, are supported with valve body 50 respectively at these two valve body supporting protuberances 46.At this, in two valve body supporting protuberances 46 any one all with from be positioned at the end 49 of the side L1 of running shaft 40 the part of opposite side L2 of amount of distance given size for starting point, the end of the opposite side L2 of any one extended in the first lip part 43, two valve body supporting protuberances 46 along axis L direction is all connected with the first lip part 43.
Be formed towards the first outstanding protuberance 461 and the second protuberance 462 of radial outside at the radial outside portion of valve body supporting protuberance 46, the position that this second protuberance 462 is adjacent with the first protuberance 461 on second direction B is given prominence to towards radial outside, between the first protuberance 461 and the second protuberance 462, be formed with groove 460.First protuberance 461 is all connected with the first lip part 43 with the end of the opposite side L2 of any one in the second protuberance 462.
The inner peripheral surface of groove 460, in arc-shaped bending in the scope of about more than 180 degree, is supported with valve body 50 at groove 460.In the manner, the circumferential width of the second protuberance 462 is wider than the circumferential width of the first protuberance 461.Further, the distal portion of the first protuberance 461 leans on the position of radially inner side in the terminal part than the second protuberance 462.Further, the circumferential width of the radially inner side of valve body supporting protuberance 46 is narrower than the circumferential width of radial outside.
Valve body 50 comprises base portion 51 and terminal part 52, the cross section of described base portion 51 is circular, and base portion 51 is supported on the groove 460 between the first protuberance 461 and the second protuberance 462 in the mode that can rotate around the axis parallel with axis L, the cross section of described terminal part 52 convexly, and give prominence to from base portion 51 towards radial outside and tilt towards first direction A in the mode covering the first protuberance 461, the part of the radial outside of terminal part 52 is positioned at the position leaning on radial outside than the first protuberance 461 and the second protuberance 462.
(seal structure in the axis L direction in buffer cell 11)
Identical with valve body supporting protuberance 46, valve body 50 also extends along axis L direction, and the end 56 of the opposite side L2 of valve body 50 contacts with the first lip part 43.Therefore, almost very close to each other between valve body 50 and the first lip part 43.Therefore, fluid 12 can not pass through between valve body 50 and the first lip part 43.On the other hand, the end 57 of the side L1 of valve body 50 is positioned at end than the side L1 of valve body supporting protuberance 46 a little near the position of opposite side L2.Therefore, relative to valve body 50 position by side L1, between the inner peripheral surface 220 of the main part 22 of valve body supporting protuberance 46 and housing 20, there is small clearance G 0.Therefore, fluid can pass through slightly via clearance G O.
Although there is small gap between the end 467 and the diapire 21 of housing 20 of the end face 417 of the side L1 of the first axle part 41 and the side L1 of valve body supporting protuberance 46, the first rib (not shown in Fig. 4 (a)) being formed at the end 467 of the end face 417 of the side L1 of the first axle part 41 and the side L1 of valve body supporting protuberance 46 contacts with the diapire 21 of housing 20.Therefore, fluid 12 not between the end face 417 of the side L1 of the first axle part 41 and diapire 21 and valve body support with 46 the end face 417 of side L1 and diapire 21 between pass through.About this first rib, carry out describing with reference to Fig. 6 etc. below.
Although have small gap between the end face 236 and the first lip part 43 of running shaft 40 of the opposite side L2 of separation protuberance 23, the second rib (not shown in Fig. 4 (a)) being formed at the end face 236 of the opposite side L2 of separation protuberance 23 contacts with the first lip part 43.Therefore, fluid 12 does not pass through between the end face 236 of the opposite side L2 of separation protuberance 23 and the first lip part 43.About this second rib, carry out describing with reference to Fig. 6 etc. below.
(action)
In the fluid cushion device 10 formed like this, if rotor 30 (running shaft 40) rotates towards first direction A around axis L, then valve body 50 is subject to fluid and presses and rotate, and terminal part 52 moves towards the second protuberance 462 side.Consequently, the radial outside portion of terminal part 52 abuts with the inner peripheral surface 220 of the main part 22 of housing 20.Therefore, in valve body 50 and valve body supporting with in protuberance 46, prevent fluid to move towards second direction B, consequently, load (resistance) is applied to rotor 30 (running shaft 40).Even if under these circumstances, than the position of valve body 50 by side L1, between the inner peripheral surface 220 of the main part 22 of valve body supporting protuberance 46 and housing 20, have small clearance G 0 in vain.Therefore, in valve body 50 and valve body supporting with in protuberance 46, allow fluid to move slightly to second direction B.Therefore, although apply load to rotor 30 (running shaft 40), allow rotor 30 (running shaft 40) to rotate towards first direction A with comparatively low speed.
On the other hand, if rotor 30 (running shaft 40) rotates towards second direction B around axis L, then valve body 50 is subject to fluid and presses and rotate, and terminal part 52 moves towards the first protuberance 461 side.Consequently, between the part of the radial outside of terminal part 52 and the inner peripheral surface of the main part 22 of housing 20, there is gap.Therefore, in valve body 50 and valve body supporting with in protuberance 46, allow fluid to move towards first direction A, consequently, load is not applied to rotor 30 (running shaft 40).
(structure of rib)
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d) are the explanatory drawings of the first rib 16 being formed at the running shaft 40 applying fluid cushion device 10 of the present utility model, the explanatory drawing represented is amplified in the end of the side L1 of running shaft 40 by Fig. 6 (a), Fig. 6 (b) is the rear view of the end face of the side L1 representing running shaft 40, Fig. 6 (c) is the explanatory drawing of the sectional shape of first rib 16 before representing flattening, and Fig. 6 (d) is the explanatory drawing of the sectional shape of first rib 16 after representing flattening.
As shown in Fig. 5 (a) and Fig. 6 (a), Fig. 6 (b), in the manner, in buffer cell 11, define first rib 16 in order to limit fluid 12 passes through between running shaft 40 and diapire 21, described first rib 16 is outstanding and radially extend from the side the part that side L1 is opposed with diapire 21 of diapire 21 and running shaft 40 towards the opposing party.In the manner, first rib 16 is formed at the part opposed with diapire 21 at side L1 of running 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), be formed towards the outstanding first rib 16 of diapire 21 at end 467 place of the end face 417 of the side L1 of the first axle part 41 in the part that side L1 is opposed with diapire 21 of running shaft 40 and the side L1 of valve body maintenance protuberance 46, first rib 16 radially extends to the end of the radial outside of valve body maintenance protuberance 46 from the position be connected with the outer circumferential face of end 49.
First rib 16 is formed at the end face of the side L1 of the second protuberance 462, described second protuberance 462 is in the first protuberance 461 being formed at valve body maintenance protuberance 46 and the second protuberance 462, and the circumferential width of described second protuberance 462 is wider than the circumferential width of the first protuberance 461 and extend to radial outside.
When running shaft 40 being configured at the inner side of housing 20 assembling fluid cushion device 10, the first rib 16 formed in the above described manner abuts with diapire 21.Further, when the height (outstanding size) of first rib 16 is too high, first rib 16 is between the end face 417 of the side L1 of diapire 21 and the first axle part 41 and be crushed between diapire 21 and valve body maintenance protuberance 46.In the manner, first rib 16 contacts with diapire 21 under the state be crushed.Therefore, fluid 12 does not pass through between the end face 417 of the side L1 of the first axle part 41 and diapire 21 and between the end face 417 of the side L1 of valve body supporting protuberance 46 and diapire 21.
At this, as shown in Fig. 6 (c), the cross section of the first rib 16 before flattening is triangular in shape.Therefore, on the projected direction of first rib 16, the width of the root 161 of first rib 16 is wider than the width of end side 162.Further, as shown in Fig. 6 (d), the cross section of the first rib 16 after flattening is trapezoidal, and on the projected direction of first rib 16, the width of the root 161 of the first rib 16 after flattening is wider than the width of end side 163.Further, the end side 163 on the projected direction of first rib 16 is the face orthogonal relative to axis L direction.
Further, in the manner, as shown in Figure 5, the side in the end face 436 of the end 236 of the opposite side L2 of the separation protuberance 23 of housing 20 and the side L1 of the first lip part 43 is formed and gives prominence to and the second rib 17 radially extended towards the opposing party.In the manner, be formed in the end 236 of the opposite side L2 of the separation protuberance 23 of housing 20 and give prominence to and the second rib 17 radially extended towards the end face 436 of the side L1 of the first lip part 43.At this, second rib 17 is formed in the whole radial direction of the end 236 of the opposite side L2 of separation protuberance 23.
When running shaft 40 being configured at the inner side of housing 20 assembling fluid cushion device 10, the second rib 17 formed in the above described manner contacts with the first lip part 43.Further, when the height (outstanding size) of second rib 17 is too high, second rib 17 is crushed between the end 236 and the first lip part 43 of the opposite side L2 of separation protuberance 23.In the manner, second rib 17 contacts with the first lip part 43 under the state be crushed.Therefore, fluid 12 does not pass through between the end 236 of the opposite side L2 of the separation protuberance 23 of housing 20 and the first lip part 43.
At this, identical with first rib 16, as shown in Fig. 6 (c), the cross section of the second rib 17 before flattening is triangular in shape.Therefore, on the projected direction of second rib 17, the width of the root 171 of second rib 17 is wider than the width of end side 172.Further, identical with first rib 16, as shown in Fig. 6 (d), the cross section of the second rib 17 after flattening is trapezoidal, and on the projected direction of second rib 17, the width of the root 171 of the second rib 17 after flattening is wider than the width of end side 173.Further, identical with first rib 16, the end side 173 on the projected direction of second rib 17 is the face orthogonal relative to axis L direction.
(main efficacy results of the manner)
As described above, in the fluid cushion device 10 of the manner, between the running shaft 40 and housing 20 of rotor 30, be formed towards the outstanding first rib 16 of diapire 21 in the part (end 467 of the end face 417 of the side L1 of the first axle part 41 and the side L1 of valve body maintenance protuberance 46) opposed with the diapire 21 of housing 20 at side L1 of running shaft 40, therefore, it is possible to make to be close to fully between the axis L direction of housing 20 and rotor 30.Further, even if when the height (outstanding size) of first rib 16 is too high, when assembling fluid cushion device 10, first rib 16 is crushed, and therefore first rib 16 becomes suitable height (outstanding size).So, even if the precision of running shaft 40, housing 20 and assembly precision are not extreme height, make running shaft 40 along produce the direction of load rotate time, also can easily spill from the gap of housing 20 with the axis L direction of rotor 30 by suppression fluid.Therefore, because the sealing state of buffer cell 11 is stablized, so time when toilet seat 6 and toilet lid 5 are fallen down can be stablized.Further, due to fluid 12 lower for viscosity is used as fluid 12, therefore, it is possible to reduce the load applied valve body 50 grade.Further, due to the less expensive of the lower fluid 12 of viscosity, therefore, it is possible to reduce the cost of fluid cushion device 10.
And, between the running shaft 40 and housing 20 of rotor 30, be formed towards the outstanding second rib 17 of the first lip part 43 in the end 236 opposed with the first lip part 43 of running shaft 40 at opposite side L2 of the separation protuberance 23 of housing 20, therefore, it is possible to make fully to be close between the axis L direction of housing 20 and rotor 30.Further, even if when the height (outstanding size) of second rib 17 is too high, when assembling fluid cushion device 10, second rib 17 is also crushed, and becomes suitable height (outstanding size) to make second rib 17.Therefore, even if the precision of running shaft 40, housing 20 and assembly precision are not extreme height, make running shaft 40 along produce the direction of load rotate time, also can easily spill from the gap of housing 20 with the axis L direction of rotor 30 by suppression fluid.Therefore, because the sealing state of buffer cell 11 is stablized, so time when toilet seat 6 and toilet lid 5 are fallen down can be stablized.Further, due to by fluid 12 reactive fluid 12 lower for viscosity, therefore, it is possible to reduce the load applied valve body 50 grade.Further, due to the less expensive of the lower fluid 12 of viscosity, therefore, it is possible to reduce the cost of fluid cushion device 10.
Further, the end side 163 of first rib 16 and the end side 173 of second rib 17 are the face orthogonal relative to axis L direction.That is, when assembling fluid cushion device 10, first rib 16 and second rib 17 are crushed.Therefore, because first rib 16 and second rib 17 become suitable height (outstanding size), therefore when making running shaft 40 rotate along the direction producing load, can reliably spill from the gap of housing 20 with the axis L direction of rotor 30 by suppression fluid.And, because the width of the root 161 of first rib 16 and the root 171 of second rib 17 is wider than the width of the end side 162,163 of first rib 16 and the end side 172,173 of second rib 17, therefore, when assembling damping device 10, first rib 16 and second rib 17 are easily crushed.
At this, separation protuberance 23 and valve body maintenance protuberance 46 are provided with identical number respectively in the circumferential, and are arranged in the circumferential across multiple positions (two positions) of equal angle intervals.Therefore because buffer cell 11 is divided into multiple (two), therefore, it is possible to produce larger load.On the other hand, if divided by buffer cell 11, then fluid just correspondingly increases for the position spilt from housing 20 and the gap of the axial direction of rotor 30.But by present embodiment, due to by forming first rib 16 and second rib 17 can spill by suppression fluid, therefore, it is possible to buffer cell 11 is divided into multiple and adverse effect that is that bring by elimination.
And, within the casing 20, the separation end of the side L1 of protuberance 23 is connected with diapire 21, in running shaft 40, the valve body maintenance end of the opposite side L2 of protuberance 46 is connected with the first lip part 43, therefore, fluid can not be there is from situation about spilling between the end and diapire 21 of the side L1 of separation protuberance 23 and fluid from situation about spilling between the end of the opposite side L2 of valve body maintenance protuberance 46 and the first lip part 43.
At this, first rib 16 is formed at the second wider protuberance 462 of circumferential width in the first protuberance 461 of valve body maintenance protuberance 46 and the second protuberance 462.Therefore, when flattening first rib 16, valve body maintenance protuberance is not yielding.And, because the circumferential width being positioned at second protuberance 462 of second direction B in the first protuberance 461 and the second protuberance 462 is wider than the circumferential width of the first protuberance 461, therefore when making running shaft 40 rotate along the first direction A producing load, even if the second protuberance 462 bears larger load, distortion or the breakage of the second protuberance 462 also can be suppressed.
Further, the distal portion of the first protuberance 161 leans on the position of radially inner side in the terminal part than the second protuberance 462, in valve body 50, terminal part 52 is outstanding from base portion 51 towards radial outside, tilts and cover the first protuberance 461 from radial outside towards first direction A.Therefore, make running shaft 40 along produce load first direction A rotate time, valve body 50 be easily subject to fluid pressure and to closing direction displacement.
Further, because the circumferential width of the radially inner side of valve body maintenance protuberance 46 is narrower than the circumferential width of radial outside, therefore valve body keeps protuberance 46 not easily to contact with the radial inside portion (root) of separation protuberance 23.Therefore, it is possible to the angle that expansion rotor 30 can rotate.
Other mode of executions
In the above-described embodiment, running shaft 40 and housing 20 are resin-made, but running shaft 40 and housing 20 also can be metal.
Claims (13)
1. a fluid cushion device, comprising:
Housing, it is tubular, and has diapire in the side of axial direction;
Rotor, it has running shaft and valve body, wherein, described running shaft has lip part, and in the inner side of described housing, described lip part is opposed with described diapire at the opposite side of described axial direction, and divide buffer cell between described diapire, described valve body is held in described running shaft; And
Fluid, it is filled in described buffer cell,
Described housing has the separation protuberance outstanding from the inner peripheral surface of this housing towards radially inner side,
Described rotor has the valve body maintenance protuberance given prominence to from the outer circumferential face of described running shaft towards radial outside and keep described valve body,
At least one rib in first rib and second rib is formed between described running shaft and described housing, wherein, described first rib is outstanding from the part opposed with described diapire in described side of described running shaft towards described diapire also radially to be extended, and described second rib is outstanding from the end of the described opposite side of described separation protuberance towards described lip part also radially to be extended.
2. fluid cushion device according to claim 1, is characterized in that,
Described separation protuberance and described valve body maintenance protuberance are provided with identical number respectively in the circumferential, and are arranged in the circumferential across multiple positions of equal angle intervals.
3. the fluid cushion device according to claims 1 or 2, is characterized in that,
Be formed with described first rib and described second rib both sides.
4. fluid cushion device according to claim 1, is characterized in that,
The end of the described side of described separation protuberance is connected with described diapire,
The end of the described opposite side of described valve body maintenance protuberance is connected with described lip part.
5. fluid cushion device according to claim 1, is characterized in that,
On the projected direction of described rib, the end side of described rib is the face orthogonal relative to described axial direction.
6. fluid cushion device according to claim 1, is characterized in that,
On the projected direction of described rib, the width of the root of described rib is wider than the width of end side.
7. fluid cushion device according to claim 1, is characterized in that,
Described first rib is outstanding from the end of the described side of the described valve body maintenance protuberance the part that described side is opposed with described diapire of described running shaft towards described diapire.
8. fluid cushion device according to claim 7, is characterized in that,
The direction of load is produced as first direction when being rotated by described rotor, during using side opposite to the first direction as second direction,
Described valve body maintenance protuberance has:
First protuberance, it is given prominence to towards radial outside; And
Second protuberance, it is given prominence to towards radial outside in the position adjacent in a second direction with described first protuberance, and supports described valve body between described first protuberance,
Described first rib is formed at the wider protuberance of circumferential width in described first protuberance and described second protuberance.
9. fluid cushion device according to claim 8, is characterized in that,
The circumferential width of described second protuberance is wider than the circumferential width of described first protuberance.
10. the fluid cushion device according to Claim 8 or described in 9, is characterized in that,
The distal portion of described first protuberance leans on the position of radially inner side in the terminal part than described second protuberance,
Described valve body has:
Base portion, it is supported between described first protuberance and described second protuberance in the mode that can rotate around the axis of the rotating center axis being parallel of described rotor; And
Terminal part, it is outstanding from described base portion towards radial outside, and tilts towards described first direction and cover described first protuberance from radial outside.
11. fluid cushion devices according to claim 1, is characterized in that,
The circumferential width of the radially inner side of described valve body maintenance protuberance is narrower than the circumferential width of radial outside.
12. fluid cushion devices according to claim 1, is characterized in that,
Described second rib is outstanding from described separation protuberance towards described lip part.
13. 1 kinds of buffered devices, it has the fluid cushion device according to any one of claim 1 to 12, it is characterized in that,
Lid is installed on equipment body by described 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 (1)
| Publication Number | Publication Date |
|---|---|
| CN204664262U true CN204664262U (en) | 2015-09-23 |
Family
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| 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 After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510142332.8A Active CN104948633B (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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948633A (en) * | 2014-03-31 | 2015-09-30 | 日本电产三协株式会社 | Fluid buffer device and equipment with buffer function |
| CN107307792A (en) * | 2016-04-27 | 2017-11-03 | 日本电产三协（浙江）有限公司 | Fluid cushion device, buffered device and Western-style closestool unit |
| CN107307793A (en) * | 2016-04-27 | 2017-11-03 | 日本电产三协（浙江）有限公司 | Fluid cushion device, buffered device and Western-style closestool unit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP3517007B1 (en) * | 2018-01-29 | 2020-01-22 | Geberit International AG | Wc fitting with pivotable part |
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| 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 |
| 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 |
-
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
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948633A (en) * | 2014-03-31 | 2015-09-30 | 日本电产三协株式会社 | Fluid buffer device and equipment with buffer function |
| CN104948633B (en) * | 2014-03-31 | 2017-10-24 | 日本电产三协株式会社 | Fluid cushion device and buffered device |
| CN107307792A (en) * | 2016-04-27 | 2017-11-03 | 日本电产三协（浙江）有限公司 | Fluid cushion device, buffered device and Western-style closestool unit |
| CN107307793A (en) * | 2016-04-27 | 2017-11-03 | 日本电产三协（浙江）有限公司 | Fluid cushion device, buffered device and Western-style closestool unit |
| CN107307792B (en) * | 2016-04-27 | 2022-12-27 | 日本电产三协（浙江）有限公司 | Fluid cushioning device, equipment with cushioning and western-style toilet unit |
| CN107307793B (en) * | 2016-04-27 | 2023-02-17 | 日本电产三协（浙江）有限公司 | Fluid cushioning device, equipment with cushioning and western-style toilet unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015194230A (en) | 2015-11-05 |
| CN104948633A (en) | 2015-09-30 |
| CN104948633B (en) | 2017-10-24 |
| JP6400932B2 (en) | 2018-10-03 |
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Granted publication date: 20150923 Effective date of abandoning: 20171024 |