CN107143607A - bounce limiter - Google Patents
bounce limiter Download PDFInfo
- Publication number
- CN107143607A CN107143607A CN201611178100.9A CN201611178100A CN107143607A CN 107143607 A CN107143607 A CN 107143607A CN 201611178100 A CN201611178100 A CN 201611178100A CN 107143607 A CN107143607 A CN 107143607A
- Authority
- CN
- China
- Prior art keywords
- cylindrical body
- body part
- installing component
- base portion
- dust cover
- 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.)
- Granted
Links
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
- F16F9/32—Details
- F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
Abstract
The present invention provides a kind of spring limiter for the novel structure that can effectively prevent dust cover from coming off while the influence to limiting characteristics is suppressed.One kind spring limiter (10), possess cylindrical body part (14) and dust cover (12) is installed, the base portion (24) prominent to periphery is formed with cylindrical body part (14), and it is integrally formed oriented axially projecting linking part (26) in base portion (24), the installing component (34) of the deformation rigidity ring-type bigger than cylindrical body part (14) is connected with linking part (26), the axial end portion of dust cover (12) is installed relative to installing component (34), installing component (34) is configured at axially external relative to cylindrical body part (14), and installing component (34) is configured at the position than the outer the week side of boss in inner circumferential end of base portion (24).
Description
The cross reference of related application
This application claims enjoy in entitled " バ ウ Application De ス ト ッ パ " the Japan Patent Shen submitted on March 1st, 2016
Please JP2016-039219 priority, the entire disclosure of which is herein incorporated by reference.
Technical field
The present invention relates to the spring limiter that the contraction distortion amount of the damper of the suspension to constituting automobile etc. is limited.
Background technology
All the time, it is known to which the contraction distortion amount of the damper of suspension to constituting automobile etc. enters the bullet of row buffering limitation
Jump limiter.Yielding rubber of the spring limiter as disclosed in Japanese Patent Publication 3-4939 publications (patent document 1),
The tubular of the piston rod of damper is installed on as extrapolation, abutted as the yielding rubber of elastomer with the cylinder of damper and
Compressed in the axial direction between piston rod and cylinder, so that the amount of contraction to damper enters row buffering limitation.
However, being also provided with the dust cover of the outer circumferential side of damper encirclement preventing foreign matter to the sliding part of damper sometimes
Divide and adhere to etc..Although the dust cover is integrally formed relative to spring limiter sometimes, formed in dust cover by resin
Mutually different situation of formation material Deng spring limiter and dust cover etc., the dust cover with limiter split of bouncing is with extrapolation
State is installed on spring limiter.
But, the structure of spring limiter is installed on for the dust cover of split, is limited in the amount of contraction of damper by spring
Position device limitation when, spring limiter outer peripheral face install dust cover be possible to because bounce limiter elastic deformation and from
Spring limiter comes off.
Then, in patent document 1, it is provided with the hard portion of high rigidity in the end of yielding rubber, and by dust cover phase
Installed for hard portion, so as to prevent that dust cover comes off from yielding rubber in the deformation of yielding rubber.
But, if hard portion directly is fixed in into yielding rubber, the bullet of the end of yielding rubber as described in Patent Document 1
Property deflection is limited by hard portion, therefore the limiting characteristics of yielding rubber are impacted sometimes.
Prior art literature
Patent document
Patent document 1：Japanese Patent Publication 3-4939 publications
The content of the invention
The problem to be solved in the present invention
The present invention is completed using above-mentioned situation as background, and the problem of it is solved is that offer one kind can be in suppression pair
The spring limiter for the novel structure that dust cover comes off effectively is prevented while the influence of limiting characteristics.
The means used to solve the problem
Hereinafter, the mode of the invention for being recited as problem as solving and having completed.Further, in each reality of following record
Applying the inscape used in mode can be used with combination as arbitrary as possible.
That is, the 1st aspect of the present invention is a kind of spring limiter, possesses the outer piston rod for inserting in damper to subtract this
The contraction distortion amount for shaking device carries out the cylindrical body part of elastic limitation, and is provided with the cylindrical body portion by the damper
Slipper covering split dust cover, the spring limiter is characterised by, integrally formed in the cylindrical body part
The base portion that oriented periphery is protruded, and oriented axially projecting linking part is integrally formed in the base portion, it is connected with the linking part
The installing component of the deformation rigidity ring-type bigger than the cylindrical body part, the axial end portion of the dust cover is relative to the installing component
Installed, the installing component is configured at axially external relative to the cylindrical body part, and the installing component is configured at than this
At the position of the outer the week side of boss in inner circumferential end of base portion.
According to the spring limiter of the structure using the 1st aspect of the present invention, by the way that dust cover is installed on into deformation rigidity
The installing component bigger than cylindrical body part, can prevent the de- of dust cover caused by the elastic deformation due to cylindrical body part
Fall.
In addition, it is axially external by the way that installing component is configured at relative to cylindrical body part, and be configured at than base portion
At the position of the outer the week side of boss in inner circumferential end, so that the elastic deformation of cylindrical body part is difficult to be limited by installing component.Cause
This, can realize the buffer limit effect that the low elasticity characteristic of cylindrical body part is formed, for example suitable for constituting vehicle
In the case of the damper of suspension fork mechanism etc., improvement of ride quality etc. can be realized.
The 2nd aspect of the present invention, in the spring limiter using the structure of first method, the axial direction of the base portion is most
Small thickness is smaller than the radial direction minimum thickness size of the cylindrical body part.
According to second method, by making base portion turn into the thin-walled thinner than cylindrical body part, and base portion is set to be difficult to hamper cylinder
The elastic deformation of shape main part, can be avoided due to the high resiliency of cylindrical body part caused by setting base portion.
The 3rd aspect of the present invention, using first or second method structure spring limiter in, the base portion from
The axial end portion of the cylindrical body part is protrusively provided to periphery.
According to Third Way, installing component can be configured at by axle relative to cylindrical body part by shorter linking part
Laterally.
The 4th aspect of the present invention, in the spring limiter using first to the structure of any of Third Way mode
In, the linking part is set from the peripheral end of the base portion to axially projecting.
, just can be affixed by the installing component of size corresponding with dust cover without significantly increasing base portion according to fourth way
In on linking part.In addition, by preventing base portion more prominent more to periphery than linking part, can reduce in the week side of boss institute more outer than linking part
The space needed.
The 5th aspect of the present invention, in the spring limiter of the structure using any of first to fourth mode mode
In, the eaves shape protuberance of axial end portion covering of the dust cover of the cylindrical body part will be installed on from the base portion and institute
Any one stated in linking part is protrusively provided to periphery.
According to the 5th mode, by using eaves shape protuberance by the open-ended covering of the dust cover as tubular, and make water
It is difficult to the inner circumferential into dust cover Deng foreign matter, and linking portion, the damper of spring limiter and dust cover etc. can be realized
The raising of durability.
The 6th aspect of the present invention, in the spring limiter of the structure using any of the first to the 5th mode mode
In, the installing component integrally possesses the Fixed Division for the tubular for being fixed in the linking part and from the Fixed Division at a right angle with axle
Direction protrude and the fastener that engages the dust cover in the axial direction.
, can be affixed securely with larger affixed area relative to linking part by installing component according to the 6th mode.Separately
Outside, because the elastic deformation amount portion of being secured of linking part is limited, so that dust cover stably be kept relative to spring limiter
In pre-position.
Invention effect
According to the present invention, it is formed with cylindrical body part from the cylindrical body part base portion prominent to periphery and from base portion
To axially projecting linking part, and the installation for being fixed in linking part by dust cover relative to deformation rigidity than cylindrical body part greatly
Part is installed, therefore, it is possible to prevent coming off for dust cover caused by the elastic deformation due to cylindrical body part.Further,
Installing component be configured at relative to cylindrical body part it is axially external, also, installing component be configured at it is more outer than the inner circumferential end of base portion
At the position of the week side of boss, therefore the elastic deformation of cylindrical body part is difficult to mounted member limitation, can realize cylindrical body part
The buffer limit effect that low elasticity characteristic is formed.
Brief description of the drawings
Fig. 1 is the vertical profile for the spring limiter that the first embodiment of the present invention is denoted as with the installment state of dust cover
View.
Fig. 2 is by the partial, longitudinal cross-sectional of the part A enlarged representation of the spring limiter shown in Fig. 1.
Fig. 3 is by longitudinal section of the spring limiter to be represented to the installment state of vehicle shown in Fig. 1.
Fig. 4 is the vertical profile for the spring limiter that second embodiment of the present invention is denoted as with the installment state of dust cover
View.
Symbol description
10、80：Bounce limiter；12、82：Dust cover；14：Cylindrical body part；24：Base portion；26、86：Linking part；32：
Eaves shape protuberance；34、88：Installing component；36、90：Fixed Division；38、92：Fastener；62：Damper；66：Piston rod
Embodiment
Hereinafter, embodiments of the present invention are illustrated referring to the drawings.
In Fig. 1, the spring shown using being provided with the state of dust cover 12 as the first embodiment of the present invention is limited
Position device 10.In the following description, above-below direction refers to the above-below direction in direction of principal axis i.e. Fig. 1 of spring limiter 10.
More specifically, spring limiter 10 possesses cylindrical body part 14.Cylindrical body part 14 is substantially justified by integrally having
The rubber elastomer of barrel shape is formed, and is formed with while preset distance is spaced from each other in the axial direction in outer peripheral face opening and is prolonged to circumference
The multiple annular recess 16 stretched.Thus, the outer peripheral face of cylindrical body part 14 the forming portion office of annular recess 16 partly into
For path, and shunk respectively in the forming portion office of each annular recess 16.In addition, the inner peripheral surface of cylindrical body part 14 is substantially round
Cylinder face, therefore the formation part of the annular recess 16 of cylindrical body part 14 is thinner than other parts, on cylindrical body part 14, in axle
It is arranged alternately thick wall part and thin-walled portion upwards.In the present embodiment, three rings are provided with separated from each other in the axial direction
Shape groove 16,16,16, is provided with four heavy walls between the axial both ends of cylindrical body part 14 and the axial direction of annular recess 16
Part.Further, the inner peripheral surface of cylindrical body part 14, the heavy section office that annular recess 16 is deviateed in the axial direction is slightly expanding, make
Cylindrical body part 14 is overall to turn into ripple struction.
In addition, being formed with the buffer protrusion further protruded downwards from axial lower surface in cylindrical body part 14
18.Buffer protrusion 18 is substantially semi-spherical shape, and being set at circumferential multiple positions of cylindrical body part 14 in the present embodiment
Put, and abutted in the contraction of damper 62 described later prior to cylindrical body part 14 with cylinder head 72.
Further, in the thick wall part of the cylindrical body part 14 between annular recess 16, constraint component 20 is installed.
Constraint component 20 is substantially toroidal, is formed by the synthetic resin of metal or hard, and deformation rigidity is than cylindrical body part 14
Greatly.The constraint component 20 is fixed in the peripheral end of the thick wall part of cylindrical main body portion 14, and cylindrical body part 14 is to outer peripheral side
The restrained part 20 of elastic deformation amount limit.Further, constraint component 20 is appropriate according to required limiting characteristics, durability etc.
Ground is set, in addition to setting the situations of multiple constraint components, the situation of constraint component different using shapes and sizes, sometimes
Also it can omit.
In addition, as shown in Figure 1 and Figure 2, cover installation portion 22 is formed with the bottom of cylindrical body part 14.Cover is installed
Portion 22 integrally possesses from the base portion 24 prominent to periphery of cylindrical body part 14 and from base portion 24 to axially projecting linking part 26.
The axial end portion of base portion 24 from cylindrical body part 14 is protrusively provided to periphery, and with substantially permanent in whole circumference
Fixed cross sectional shape is continuously provided, and the base portion be formed with lower surface opening and to circumference in all-round scope continuously
The flute profile hollow part 28 of extension.The base portion 24 of present embodiment thin-walled property in the axial direction is made by channel-shaped hollow part 28, so that
Minimum thickness size (the t of axial direction1) smaller than the minimum thickness size (T) of the radial direction of cylindrical body part 14, make the deformation of base portion 24
Rigidity is smaller than cylindrical body part 14.Further, the upper table of base portion 24 face outwardly it is circumferential lower tilt, rainwater etc. is flowed to periphery and difficult
To accumulate on base portion 24.Further, in the peripheral end of base portion 24, it is formed with eaves shape prominent to outer peripheral side and protrudes
Portion 32.The upper end outer peripheral face that the eaves shape protuberance 32 is set to the dust cover 12 (aftermentioned) than inserting in linking part 26 outside is reached more outward
The protrusion size of all positions, and upper table faces outwardly circumferential lower inclination.
The generally substantially cylindrical shape of linking part 26, and from the peripheral end of base portion 24 to being protrusively provided axially below.
Minimum thickness size (the t of the radial direction of the linking part 26 of present embodiment2) than cylindrical body part 14 radial direction minimum thickness chi
Very little (T) is small, and the deformation rigidity of linking part 26 is smaller than cylindrical body part 14.In addition, in the bottom of linking part 26, being formed with footpath
The multiple air discharge ducts 30 upwardly extended, and it is formed with fold in the lower surface of linking part 26.
In addition, on linking part 26, being connected with installing component 34.Installing component 34 is by synthetic resin of metal or hard etc.
Formed, be in a ratio of hard with cylindrical body part 14 and deformation rigidity is larger.The installing component 34 of present embodiment is to be overall with big
The part of constant L-shaped section continuous ring-type in all-round scope is caused, the installing component integrally possesses what is extended in the axial direction
The Fixed Division 36 of substantially cylindrical shape and bottom from Fixed Division 36 are dashed forward to the direction at a right angle with axle throughout whole circumference
The fastener 38 of the substantially toroidal gone out.In the present embodiment, as installing component 34, rushed using to sheet metal
Press the stamped metal part processed.
Also, installing component 34 is fixed in linking part 26.That is, the inner peripheral surface of the Fixed Division 36 of installing component 34 is fixed in company
The outer peripheral face of the axially intermediate portion of knot 26, and the bottom of linking part 26 is fixed in the fastener 38 of installing component 34
Lower surface.Also, in installing component 34, the outer peripheral face of Fixed Division 36 and the upper surface of fastener 38 are exposed from linking part 26.
In the present embodiment, because installing component 34 has the L-shaped section for integrally possessing fastener 38 and Fixed Division 36, therefore the peace
Fill part it is affixed securely with larger affixed area relative to linking part 26, and the inner circumferential end of fastener 38 edge not
Contacted with linking part 26, it is difficult to produce due to cracking of linking part 26 etc. caused by setting installing component 34.Particularly at this
In embodiment, installing component 34 is stamped metal part, and and fastener 38 is integrally formed with and solid by bending machining
Socket part 36, thus the fastener 38 and Fixed Division 36 continuous part be not present corner, it is more difficult to produce because of the contact in corner
Caused by linking part 26 damage.
In addition, being provided with dust cover 12 on spring limiter 10.The overall barrel shape with thin-walled of dust cover 12, at this
It is formed from a resin in embodiment.As the formation material of dust cover 12, for example, in the polypropylene (PP) as thermoplastic resin
Middle to mix and be dispersed with ethylene-propylene rubber (EPDM) material, weatherability, formability etc. are excellent, therefore are preferred to use.No
Cross, in the case where being formed with thermoplastic resin, the polyolefin-based resins such as polypropylene or polyethylene, polyamide series resin,
Polyvinyl chloride resin, polyester based resin, polyurethane series resin, phenylethylene resin series, olefin-based resin etc. can be used.Separately
Outside, as the manufacturing process of dust cover 12, it is preferred to use blow molding, but injection molded can also be used.
Further, dust cover 12 possesses corrugated part 40.Corrugated part 40 is continuously formed with many under having in the axial direction
The structure of the individual valley 42 protruded to periphery.The valley 42 possesses as the outside towards inner circumferential to axially each side is inclined
One group of inclined wall portion 44,44 as taper, and the valley substantially lays across V-arrangement section in all-round scope with what is protruded to periphery
Continuously and as ring-type.In addition, the corrugated part 40 of present embodiment towards periphery with being increasingly becoming thin-walled, the difference of the wall thickness
Realized by the blow molding of dust cover 12.
Further, it is formed with small valley 46 to peripheral openings in the peripheral end of valley 42.Small valley 46 is formed at
The outer peripheral portion of corrugated part 40, and with the V-arrangement section of substantially laying across protruded and deployed to periphery to inner circumferential, and in all-round scope
Inside it is continuously formed.In addition, small valley 46 compared with the valley formed between axially adjacent valley 42,42 narrow width and
For shallow bottom.
Further, above the axial direction of corrugated part 40, upper mounting portion 48 is formed with corrugated part 40.Upper mounting portion 48
Overall cylindrical shape, and it is formed with axially intermediate portion the locking protuberance 50 prominent to inner circumferential.Engage protuberance 50
By prominent and outer circumferential side is recessed into channel-shaped to inner circumferential, so that formed with the thickness of constant, and upper mounting portion 48 is in card
Only the forming portion office of protuberance 50 partly turns into path.Further, the locking protuberance 50 of present embodiment possesses inwardly
The week side of boss at the anti-delinking part 52 that side at a right angle is extended up substantially with axle and inner circumferential end from anti-delinking part 52 upward on one side outwardly
Tilt in week while the insertion guide portion 54 of extension.Further, the upper mounting portion 48 extended in the axial direction with substantially cylindrical shape is upper
End part is integrally formed with insertion guide portion 54 and extended from the upper end of insertion guide portion 54 to axially top.
Further, in corrugated part 40 axially below, it is formed with lower mounting portion 56 with corrugated part 40.Lower mounting portion
56 generally substantially cylindrical shapes, and possess the circumferential groove 58 in inner peripheral surface opening in the center section of axial direction.Further, in lower peace
Multiple positions of the circumferencial direction in dress portion 56, are formed with wide diameter portion 60.Wide diameter portion 60 is prominent to periphery, and with towards inner circumferential
And the cross sectional shape extended in the circumferential extension substantially linear in the axial direction.The wide diameter portion 60 of present embodiment is in the circumferential substantially
Equally spaced configure and radially set.
Moreover, as shown in Figure 1 and Figure 2, the upper mounting portion 48 of dust cover 12 is arranged on spring limiter 10.That is, by inciting somebody to action
The linking part 26 of spring limiter 10 is inserted in outside the upper mounting portion 48 of dust cover 12, and makes the locking protuberance 50 of upper mounting portion 48
The fastener 38 of installing component 34 with being fixed in connecting portion 26 is engaged in the axial direction, so that the axial end portion of dust cover 12 be pacified
Installing component 34 loaded on spring limiter 10.The outer circumferential side of the locking protuberance 50 of present embodiment is hollowed out into channel-shaped and formed
For thin-walled, therefore, by making the insertion guide portion 54 of locking protuberance 50 be supported in the axial direction with the fastener 38 of installing component 34
Connect, thus engaging protuberance 50 can be in the axial direction by fastener 38 while being extended due to fastener 38 to periphery
Outer circumferential side.Moreover, by releasing expanding deformation to being inserted into the locking protuberance 50 located by the top than fastener 38, and make card
Only the fastener 38 of protuberance 50 and installing component 34 is engaged in the axial direction.
Herein, the installing component 34 for installing dust cover 12 is arranged on axial direction and at a right angle with axle relative to cylindrical body part 14
The position that is upwardly deviated from of side at.More specifically, as shown in Fig. 2 installing component 34 be configured at relative to cylindrical body part 14 to
Axially external (lower section) leaves predetermined distance d1Position at, and installing component 34 is configured at the inner circumferential end relative to base portion 24
(outer peripheral face of the thick wall part of the bottom of cylindrical body part 14) leaves predetermined distance d to outer peripheral side2Position at.In this reality
Apply in mode, installing component 34 is configured to be divided relative to cylindrical body part 14 in the projection in axial direction and the direction at a right angle with axle
Place is not positioned away from, and the bottom being configured at than cylindrical body part 14 is located more on the lower, and be configured at and compare cylindrical body
At the position of the outer the week side of boss in maximum outside diameter part in portion 14.Further, buffer protrusion 18 is additionally set relative to cylindrical body part 14
Put, therefore, the lower end of cylindrical body part 14 is held in addition to buffer protrusion 18.In addition, in fig. 2, base portion 24 it is interior
Zhou Duan is illustrated by double dot dash line.
In addition, being installed on the upper end of the dust cover 12 of spring limiter 10 by being provided projectingly in the peripheral end of base portion 24
Eaves shape protuberance 32 top is covered, the foreign matters such as water is difficult to the upper shed portion into dust cover 12.Particularly in this implementation
In mode, the upper surface comprising the base portion 24 including eaves shape protuberance 32 turns into the inclined plane that week tilts down outwardly, makes water etc.
The upper shed portion of dust cover 12 will not be entered and be directed to outer circumferential side.
Moreover, as shown in figure 3, spring limiter 10 is installed on the damper 62 for constituting automotive suspension mechanism, to be installed on
On vehicle.
Damper 62 possesses the cylinder 64 for being installed on wheel side (not shown) and stretches out and be installed on upward from cylinder 64
The piston rod 66 of body side (not shown).Moreover, inserting in piston rod 66, and cylinder outside the cylindrical body part 14 of spring limiter 10
The upper end of shape main part 14 is installed on the spring bearing part 68 of piston rod 66 with non-relative to through upper bracket (not shown)
The mode of bonding is embedded in.Spring bearing part 68 is not particularly limited, but in the present embodiment, is integrally formed with reverse
Dish-shaped shape accessory, and radially the deep bottom in center is exceptionally embedded in the upper end of spring limiter 10, and periphery is shallow
Bottom leg supports the upper end of helical spring 70.
In addition, the cylinder 64 of damper 62 possesses cylinder head 72 in upper end.It is provided with the cylinder head 72 prominent to periphery
The multiple chimeric teats 74 gone out, chimeric teat 74 is embedded in the circumferential groove 58 formed in the lower mounting portion 56 of dust cover 12, so that
The bottom of dust cover 12 is arranged on cylinder 64.
So, the upper end of spring limiter 10 is arranged on piston rod 66 through spring bearing part 68, and lower end
Portion is arranged on cylinder 64 through dust cover 12.Further, dust cover 12 relative to inserting in the spring limiter 10 of piston rod 66 outside
Cylindrical body part 14 and be configured at axially below, the slipper of damper 62 be the upper end of cylinder 64 (piston rod 66 it is prominent
Go out part) outer circumferential side is covered by dust cover 12.
Moreover, when for example making damper 62 too greatly shrink because of the larger input from road surface, bounce limiter 10
Cylindrical body part 14 compressed in the axial direction between spring bearing part 68 and cylinder 64, with flexibly to damper 62
Amount of contraction is limited.
When the compression with such cylindrical body part 14 plays position-limiting action, involved by present embodiment
Spring limiter 10 in, dust cover 12 is arranged on the installing component 34 of the deformation rigidity hard bigger than cylindrical body part 14,
Therefore the separation of spring limiter 10 and dust cover 12 caused by the elastic deformation due to cylindrical body part 14 can be prevented.It is special
It is not that installing component 34 is affixed relative to cylindrical body part 14 through base portion 24 and linking part 26, so as to cylindrical body part 14
The load of input is difficult to be transferred to installing component 34, is also prevented from dust cover 12 caused by the deformation due to installing component 34
Separation.
In addition, in spring limiter 10, when inputting retention load to cylindrical body part 14, under cylindrical body part 14
The elastic deformation of end, which is difficult to be deformed the larger installing component 34 of rigidity, to be constrained, can buffer performance position-limiting action.
That is, as shown in Fig. 2 the installing component 34 of spring limiter 10 is by from the base prominent to periphery of cylindrical body part 14
Portion 24 and be configured at the position than the outer the week side of boss of cylindrical body part 14, also, by from base portion 24 to company prominent axially below
Knot 26 and be configured at than cylindrical body part 14 lean on axially external position.Moreover, in 14 elastic deformation of cylindrical body part, cylinder
The constraint that the installing component 34 of shape main part 14 is formed is due to the detrusion of base portion 24 and the detrusion of linking part 26
Reduction, so as to allow tubular master in the either direction with less coefficient of elasticity in axial direction and the direction at a right angle with axle
The elastic deformation in body portion 14.So, in the spring limiter 10 of present embodiment, the elasticity of cylindrical body part 14 can be prevented
Coefficient becomes greatly because of affixed installing component 34, results in the excellent buffering that the low elasticity characteristic of cylindrical body part 14 is formed
Effect.
Further, due to the axial minimum thickness size (t of base portion 241) than the radial direction minimum thickness chi of cylindrical body part 14
Very little (T) small (t1<T), and base portion 24 coefficient of elasticity it is smaller than the coefficient of elasticity of cylindrical body part 14, therefore cylindrical body part 14
Elastic deformation be easily allowed to by the elastic deformation of base portion 24.Thus, the elastic deformation amount of cylindrical body part 14 is difficult to
Mounted member 34 is limited, and can buffer the position-limiting action that ground plays cylindrical body part 14.
Further, the radial direction minimum thickness size between the Fixed Division of the base portion 24 of linking part 26 and installing component 34 point
(t2) than radial direction minimum thickness size (T) small (t of cylindrical body part 142<T), and linking part 26 coefficient of elasticity than tubular master
The coefficient of elasticity in body portion 14 is small.Thus, the elastic deformation to cylindrical body part 14 that installing component 34 is formed further is reduced
The limitation of amount, and the position-limiting action of buffering can be realized by the elastic deformation of cylindrical body part 14.
So, because base portion 24 is in the axial direction thin-walled, also, linking part 26 is thin on the direction at a right angle with axle
Wall, therefore in the situation of the elastic deformation on any one direction in axial direction and the direction at a right angle with axle of cylindrical body part 14
Under, effectively reduce tubular master using the low elasticity characteristic that the shearing elasticity component of base portion 24 and linking part 26 is formed
The constraint that the installing component 34 in body portion 14 is formed.
In addition, base portion 24 is protrusively provided from the lower axial end portion of cylindrical body part 14 to periphery, accordingly, it is capable to using shorter
Linking part 26 and installing component 34 is configured at the axially external of cylindrical body part 14.
Further, linking part 26 is from the peripheral end of base portion 24 to being protrusively provided axially below, therefore needs not exceed
Necessarily increase base portion 24, it becomes possible to efficiently set the installing component 34 of size corresponding with the mounting portion of dust cover 12
Affixed linking part 26, and installing component 34 is configured at the position than the outer circumferential side of cylindrical body part 14.
In addition, in the present embodiment, the installation portion of the big internal diameter size of the outside dimension with than cylindrical body part 14
Part 34 and cylindrical body part 14 are configured axially outly on substantially same central shaft, so that installing component 34 is configured at phase
Positioned away from for cylindrical body part 14 on axial direction and the direction at a right angle with axle.Thus, even in 34 pairs of installing component
In the case that the deformation characteristic of cylindrical body part 14 produces influence, also can similarly it be produced in all-round scope above-mentioned special to deformation
The influence of property, therefore the torsional deformation of cylindrical body part 14 can be prevented etc..
In Fig. 4, to be provided with the spring limiter that the state of dust cover 82 shows second embodiment of the present invention
80.Spring limiter 80 has been wholely set cover installation portion 84 in the bottom of cylindrical body part 14.Further, in the following description
In, for the part substantially the same with first embodiment and position, identical label is marked with figure, so as to omit
It is bright.
More specifically, cover installation portion 84 integrally possesses from the base portion 24 prominent to periphery of cylindrical body part 14 and from base portion
24 to linking part 86 prominent axially below.The generally substantially cylindrical shape of linking part 86, and from the outer peripheral portion of base portion 24 to
Protrude axially below.
In the bottom of linking part 86, installing component 88 is connected with.Installing component 88 integrally possesses with general cylindrical shape
The Fixed Division 90 of shape and the fastener 92 from the lower end of the Fixed Division 90 substantially annulus plate shape prominent to inner circumferential.Installing component 88
Formed in the same manner as the installing component 34 of first embodiment by synthetic resin of metal or hard etc., and deformation rigidity compares tubular
Main part 14 is big, in the present embodiment, is formed by stamped metal part and the connecting portion between Fixed Division 90 and fastener 92
It is divided into the curved shape of arc-shaped.
Further, installing component 88 can be before affixed to linking part 86, to possess the L-shaped section of Fixed Division 90 and fastener 92
It is pre-formed, but it is also possible to the section of constant to be formed to axially linearly extended drum, and to link
After portion 86 is affixed fastener 92 is then formed by making bottom be bent to inner circumferential side.Thereby, it is possible to avoid the He of cylindrical body part 14
The mold sections of curing metal mold used in the vulcanization forming of cover installation portion 84 become complicated because of fastener 92.
Moreover, being provided with dust cover 82 on installing component 88.Dust cover 82 is installed on possessing in the top of corrugated part 40
Portion 94.The generally substantially cylindrical shape of upper mounting portion 94, and axially intermediate portion be formed with the locking prominent to periphery dash forward
Go out portion 96.The locking protuberance 96 integrally possess anti-delinking part 98 and insertion guide portion 100, wherein, anti-delinking part 98 be with axle into
The substantially annulus plate shape that the side at right angle is extended up, insertion guide portion 100 turns into upward and is changed into the cone cylinder shape of path
And protruded upward from the outer circumference end of anti-delinking part 98, and anti-delinking part 98 is overlapping from axially top with the fastener 92 of installing component 88
Ground is engaged in the axial direction, so that dust cover 82 is arranged on spring limiter 80.Further, protuberance 96 will engaged from below
During the installing component 88 of insertion spring limiter 80, the insertion of fastener 92 and locking protuberance 96 by making installing component 88
Guide portion 100 is abutted, so that the locking necking deformation of protuberance 96, so that locking protuberance 96 can pass through fastener 92 upward
Inner circumferential side.
Herein, in the spring limiter 80 of present embodiment, in the same manner as first embodiment, installing component 88 is configured
In the cylindrical body part 14 relative to spring limiter 80 at the position that axial direction and the side at a right angle with axle are upwardly deviated from.
That is, the upper end of the Fixed Division 90 of installing component 88 be located relative to the lower end of cylindrical body part 14 to axially downside from
The position opened, and installing component 88 be configured at it is not overlapping with cylindrical body part 14 in the projection with the direction that axle is at a right angle
At position.In addition, the fastener 92 of installing component 88 is located at the position of the inner circumferential end outer circumferential side than base portion 24, and installing component
88 are configured in the projection of axial direction at the not position overlapping with cylindrical body part 14.
In the spring limiter 80 of the structure of such use present embodiment, in the same manner as first embodiment, energy
Reduce the deformation limitation to cylindrical body part 14 that installing component 88 is formed, the elasticity of softness is realized on cylindrical body part 14
Characteristic, therefore ground performance position-limiting action can be buffered.
Further, the connecting structure of the shape of installing component, installing component and dust cover is not particularly limited.It is specific and
Speech, for example, it is also possible to using following twistlock structure：The protrusion size that the fastener of installing component is protruded from Fixed Division is circumferentially
Change, after the upper mounting portion of dust cover is inserted through into fastener, makes dust cover be rotated relative to installing component, so that upper
The locking protuberance and the fastener of installing component that installation portion is circumferentially partly set are engaged.
More than, embodiments of the present invention have been carried out with detailed narration, but the invention is not restricted to above-mentioned specific record.Example
Such as, the structure of cylindrical body part 14 is to illustrate, should not be according to the being defined property of detailed description of first, second embodiment
Explain.Specifically, for example, the shape of annular recess 16, size and number etc. can be as needed spacing performance etc. fitted
Work as change.
In addition, base portion 24 can also be arranged at axial pars intermedia or the upper axial end portion of cylindrical body 14.Further, link
Portion 26 can also be in the axial direction protrusively provided from the radially intermediate part of base portion 24.
Further, although the eaves shape protuberance 32 of first embodiment is protrusively provided from base portion 24 to periphery, still, example
Such as, it can be also provided projectingly at than the position by the top of installing component 34 on linking part 26.
In addition, the structure of dust cover is not particularly limited, for example, the flexible stroke in order to significantly obtain corrugated part 40,
The small valley 46 that the dust cover 12,82 of first, second embodiment possesses is effective, but is not essential, it is convenient to omit.
Claims (6)
1. one kind spring limiter (10,80), possesses and inserts in the piston rod (66) of damper (62) outside with to the damper (62)
Contraction distortion amount carry out the cylindrical body part (14) of elastic limitation, and be provided with the cylindrical body portion (14) and subtract this
The dust cover (12,82) of the split of the slipper covering of device (62) is shaken, the spring limiter (10,80) is characterised by,
The base portion (24) prominent to periphery is formed with the cylindrical body part (14), and in the bodily form of base portion (24) one
Into oriented axially projecting linking part (26,86),
The linking part (26,86) be connected with the deformation rigidity ring-type bigger than the cylindrical body part (14) installing component (34,
88), the axial end portion of the dust cover (12,82) is installed relative to the installing component (34,88), the installing component (34,
88) it is configured at relative to the cylindrical body part (14) axially external, and the installing component (34,88) is configured at than the base portion
(24) at the position of the outer the week side of boss in inner circumferential end.
2. spring limiter (10,80) according to claim 1, it is characterised in that
The axial minimum thickness size of the base portion (24) is smaller than the radial direction minimum thickness size of the cylindrical body part (14).
3. spring limiter (10,80) according to claim 1 or 2, it is characterised in that
The base portion (24) is protrusively provided from the axial end portion of the cylindrical body part (14) to periphery.
4. spring limiter (10,80) according to any one of claim 1 to 3, it is characterised in that
The linking part (26,86) is set from the peripheral end of the base portion (24) to axially projecting.
5. spring limiter (10,80) according to any one of claim 1 to 4, it is characterised in that
The eaves shape protuberance (32) of the axial end portion covering of the dust cover (12) of the cylindrical body part (14) will be installed on
It is protrusively provided from the base portion (24) with any one in the linking part (26) to periphery.
6. spring limiter (10,80) according to any one of claim 1 to 5, it is characterised in that
The installing component (34,88) integrally possess the tubular for being fixed in the linking part (26,86) Fixed Division (36,90) and
From the Fixed Division (36,90) to card that is prominent with direction that axle is at a right angle and engaging the dust cover (12,82) in the axial direction
Stop (38,92).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-039219 | 2016-03-01 | ||
| JP2016039219A JP6339614B2 (en) | 2016-03-01 | 2016-03-01 | Bound stopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107143607A true CN107143607A (en) | 2017-09-08 |
| CN107143607B CN107143607B (en) | 2019-02-22 |
Family
ID=59783332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611178100.9A Active CN107143607B (en) | 2016-03-01 | 2016-12-19 | Bounce limiter |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6339614B2 (en) |
| CN (1) | CN107143607B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112567151A (en) * | 2018-08-29 | 2021-03-26 | Ｋｙｂ株式会社 | Buffer block, buffer, and method for manufacturing buffer block |
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| JPS63279911A (en) * | 1987-05-12 | 1988-11-17 | Kinugawa Rubber Ind Co Ltd | Bound bumper for automobile |
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| JPH11210805A (en) * | 1998-01-23 | 1999-08-03 | Nippon Mektron Ltd | Bump stopper |
| CN104061273A (en) * | 2013-03-22 | 2014-09-24 | 东海橡塑工业株式会社 | Dust Cover Combination Body |
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|---|---|---|---|---|
| JPS6010167Y2 (en) * | 1980-05-16 | 1985-04-08 | ダイハツ工業株式会社 | Shock absorber cap mounting structure |
| JPS5856236U (en) * | 1981-10-12 | 1983-04-16 | 日本メクトロン株式会社 | bump stopper |
| JPS6028506U (en) * | 1983-08-03 | 1985-02-26 | トヨタ自動車株式会社 | Bound stopper structure in vehicle suspension system |
| JPH0439475Y2 (en) * | 1987-08-25 | 1992-09-16 | ||
| JPH034939U (en) * | 1989-06-06 | 1991-01-18 | ||
| JPH07266822A (en) * | 1994-03-29 | 1995-10-17 | Nissan Motor Co Ltd | Vehicle strut |
| JP5860733B2 (en) * | 2012-03-12 | 2016-02-16 | 住友理工株式会社 | Upper support |
| JP2014059020A (en) * | 2012-09-18 | 2014-04-03 | Tokai Rubber Ind Ltd | Bound stopper with dust cover |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044632A (en) * | 1983-08-22 | 1985-03-09 | Kinugawa Rubber Ind Co Ltd | Fixing structure of bound bumper with dust cover |
| JPS62275811A (en) * | 1986-05-22 | 1987-11-30 | Nissan Motor Co Ltd | Setting structure for dust cover to bound bumper |
| JPS63279911A (en) * | 1987-05-12 | 1988-11-17 | Kinugawa Rubber Ind Co Ltd | Bound bumper for automobile |
| JPH0384236A (en) * | 1989-08-29 | 1991-04-09 | Kinugawa Rubber Ind Co Ltd | Dust covering structure for bound bumper |
| JPH11210805A (en) * | 1998-01-23 | 1999-08-03 | Nippon Mektron Ltd | Bump stopper |
| CN104061273A (en) * | 2013-03-22 | 2014-09-24 | 东海橡塑工业株式会社 | Dust Cover Combination Body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112567151A (en) * | 2018-08-29 | 2021-03-26 | Ｋｙｂ株式会社 | Buffer block, buffer, and method for manufacturing buffer block |
| CN112567151B (en) * | 2018-08-29 | 2022-11-08 | Ｋｙｂ株式会社 | Buffer block, buffer, and method for manufacturing buffer block |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017155829A (en) | 2017-09-07 |
| CN107143607B (en) | 2019-02-22 |
| JP6339614B2 (en) | 2018-06-06 |
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