CN102691746B - Automotive engine hydraulic suspension device - Google Patents
Automotive engine hydraulic suspension device Download PDFInfo
- Publication number
- CN102691746B CN102691746B CN201210183612.XA CN201210183612A CN102691746B CN 102691746 B CN102691746 B CN 102691746B CN 201210183612 A CN201210183612 A CN 201210183612A CN 102691746 B CN102691746 B CN 102691746B
- Authority
- CN
- China
- Prior art keywords
- liquid
- filling
- hole
- runner
- rubber cup
- 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.)
- Expired - Fee Related
Links
- 239000000725 suspension Substances 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 112
- 238000007789 sealing Methods 0.000 claims description 27
- 239000012530 fluid Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000005987 sulfurization reaction Methods 0.000 claims description 14
- 210000003205 muscle Anatomy 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 9
- 238000004073 vulcanization Methods 0.000 abstract description 2
- 238000005429 filling process Methods 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The invention discloses an automotive engine hydraulic suspension device. The automotive engine hydraulic suspension device comprises a cover body (1), wherein an elastic main spring (2) and a liquid filling rubber cup (3) are arranged in the cover body (1); a cavity between the elastic main spring (2) and the liquid filling rubber cup (3) forms a liquid storage chamber (4); a flow channel mechanism (5) is arranged in the liquid storage chamber (4); the middle part of the bottom of the liquid filling rubber cup (3) is raised inwards to form a limit boss (31); a liquid filling framework (32) is arranged in the limit boss (31) through vulcanization; the limit boss (31) is concave radially to form a liquid filling flow channel (33); and a liquid filling through hole (35) is formed in a radially concave part (34). The automotive engine hydraulic suspension device has the advantages that when liquid is filled, only a liquid filling gun needs to be pressed against the liquid filling through hole, the liquid filling rubber cup is deformed after being pressed by the liquid filling gun, and when the limit boss is pressed against the bottom of a flow channel plate of the flow channel mechanism, the liquid flows into the liquid storage chamber through the liquid filling flow channel, so that the liquid filling process is simple, the liquid can be filled by workers conveniently, and the liquid filling efficiency is high.
Description
Technical field
The present invention relates to a kind of link connecting automobile chassis and motor, especially relate to a kind of Hydraulic Mounting of Automotive Engines.
Background technique
Along with making constant progress of automotive engineering, people require more and more higher to car steering and the travelling comfort taken, and the vibration & noise that motor car engine produces in running is the key factor affecting car steering and riding comfort.Therefore, usually hydraulic suspension device is connected with between automobile chassis and motor, with reduce automobile in the process of moving engine luggine on the impact of automobile chassis, the vibration of decay low frequency large amplitude, isolation engine luggine is to the transmission of car body, thus the travelling comfort improving car steering and take.
Along with the lifting day by day that people require the travelling comfort of automobile, the hydraulic mount originally just used in high-end vehicle, also gradually towards low and middle-end vehicle, the market demand of hydraulic mount also strengthens day by day.Hydraulic mount of a great variety, wherein conical hydraulic mount is made primarily of Metal plate due to it, and cost is lower, is therefore widely used.The difference that this conical hydraulic mount fills with liquid mode according to it mainly can be divided into two classes: the first kind fills with hydraulic mount for dry, a through hole is processed with in the fuse of this hydraulic mount, carry out filling liquid by this through hole and use steel ball press seal, because this through hole is in the bottom of fuse interior threaded hole, therefore need filling liquid rifle to stretch into carry out filling liquid, and need the bottom stretching into tapped hole when squeezing into steel ball equally, whole operation is more loaded down with trivial details, the fuse that this external aluminium is made processes through hole, technique is comparatively complicated, cost is higher, and easily causes leakage; Equations of The Second Kind fills with hydraulic mount for wet, all parts need be put on assembly tool when filling with liquid by this hydraulic mount, and assembly tool need be placed in and fills in the liquid bath of ethylene glycol, workman needs free-hand assembly tool by feel in liquid bath is assembled, this not only makes filling liquid efficiency lower, and greatly have impact on the health of workman.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of fill with liquid process simple, easy to operate, fill with that liquid efficiency is high, cost is lower, and the Hydraulic Mounting of Automotive Engines of not easy-to-leak liquid.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of Hydraulic Mounting of Automotive Engines, it is characterized in that comprising cover body (1), be provided with the main spring of elasticity (2) in described cover body (1) and fill with liquid rubber cup (3), cavity between the main spring of described elasticity (2) and described filling liquid rubber cup (3) forms reservoir chamber (4), runner mechanism (5) is provided with in described reservoir chamber (4), described runner mechanism (5) comprises runner plate (51), positive stop lug boss (31) is formed to inner process in the middle of the bottom of described filling liquid rubber cup (3), described positive stop lug boss (31) fill with liquid time for withstanding the bottom of described runner plate (51), described positive stop lug boss (31) interior sulfuration is provided with fills with liquid skeleton (32), described positive stop lug boss (31) is radially recessed to form the filling liquid runner (33) be connected with described reservoir chamber (4), the radial depressions part (34) of described positive stop lug boss (31) is provided with the filling fluid through-hole (35) be connected with described filling liquid runner (33), Sealing (6) is provided with in described filling fluid through-hole (35).
On the hole wall of described filling fluid through-hole (35), sulfuration has one deck rubber layer (36), and described Sealing (6) is self-plugging rivet.
The main spring of described elasticity (2) comprises sulfuration all-in-one-piece fuse (21), rubber body (22) and support frame (23), the upper joint (211) of described fuse (21) is connected with motor car engine, lower joint (212) sulfuration of described fuse (21) is in described rubber body (22), cavity between the bottom of described rubber body (22) and described filling liquid rubber cup (3) forms described reservoir chamber (4), the top of described support frame (23) is fixedly connected with the inwall of described cover body (1), the bottom of described support frame (23) is connected with the top of described filling liquid rubber cup (3).
Described filling liquid rubber cup (3) comprises a bowl body (37) and is arranged at the sealing strip (38) of tip edge of described bowl body (37), described positive stop lug boss (31) is positioned in the middle of the bottom of described bowl body (37), the top of described sealing strip (38) and the bottom edge of described runner plate (51) are tightly connected, and the bottom of described sealing strip (38) is connected with the bottom of described support frame (23).
The top of described sealing strip (38) is provided with outstanding ring packing muscle (39), the bottom edge of described runner plate (51) is provided with the annular slot (511) matched with described ring packing muscle (39), the bottom of described support frame (23) is circumferentially inwardly formed with annular in-flanges (231), described annular in-flanges (231) withstands described sealing strip (38) makes the top of sealing strip (38) in the described annular slot (511) described in ring packing muscle (39) embedding described in realization and the bottom edge of described runner plate (51) be tightly connected.
Described runner mechanism (5) also comprises flow passage cover plate (52) and decoupling zero film (53), described flow passage cover plate (52) is connected with the top of described runner plate (51), and described decoupling zero film (53) is arranged between described flow passage cover plate (52) and described runner plate (51).
Described cover body (1) forms primarily of upper cover (11) with the lower cover (12) that described upper cover (11) is connected, the top of described upper cover (11) is provided with top through hole (13), the bottom of described lower cover (12) is provided with bottom through hole (14), the upper joint (211) of described fuse (21) is stretched out by described top through hole (13), and the bottom of described bowl body (37) is stretched out by described bottom through hole (14).
The tip edge of described lower cover (12) is provided with flange (15), and the bottom edge of described upper cover (11) and the tip edge of described support frame (23) are pushed down by described flange (15).
The outer wall of described lower cover (12) is connected with base support (7).
Compared with prior art, the invention has the advantages that:
1) hydraulic mount of the present invention is by becoming the positive stop lug boss to inner process by the bottom medium design of filling with liquid rubber cup, and in this positive stop lug boss, be radially recessed to form the filling liquid runner be connected with reservoir chamber, and be provided with in radial depressions part and the filling fluid through-hole of filling with liquid runner and being connected, filling liquid rifle only need be withstood filling fluid through-hole when filling with liquid by the hydraulic mount of this structure, depressed deformation inward after filling liquid rubber cup is subject to filling with the extruding of liquid rifle, until positive stop lug boss withstands the bottom of runner plate, the liquid that filling liquid rifle pours into flows in reservoir chamber by filling with liquid runner, therefore make the process of filling with liquid more simple, be convenient to operative, and cost is lower, fill with liquid efficiency higher, on the other hand, be made up of rubber owing to filling with liquid rubber cup, therefore fill with liquid rifle and with the perimetral tight laminating of filling with fluid through-hole, vacuum before occurring filling with liquid can be this avoid and leak gas and filling with the phenomenon that in liquid, liquid is run out of in filling liquid process.
2) hydraulic mount of the present invention sulfuration one deck rubber layer on the hole wall of filling with fluid through-hole, this rubber layer coordinates with self-plugging rivet can play good sealing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of hydraulic mount of the present invention;
Fig. 2 is the decomposition texture schematic diagram after hydraulic mount of the present invention is cut open;
Fig. 3 is the cross-sectional schematic of hydraulic mount of the present invention;
Fig. 4 is the structural representation of the filling liquid rubber cup of hydraulic mount of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
A kind of Hydraulic Mounting of Automotive Engines that the present invention proposes, as shown in the figure, it comprises cover body 1, be provided with the main spring 2 of elasticity in cover body 1 and fill with liquid rubber cup 3, the main spring 2 of elasticity and the cavity of filling with between liquid rubber cup 3 form reservoir chamber 4, runner mechanism 5 is provided with in reservoir chamber 4, runner mechanism 5 comprises runner plate 51, flow passage cover plate 52 and decoupling zero film 53, flow passage cover plate 52 is connected with the top of runner plate 51, decoupling zero film 53 is arranged between flow passage cover plate 52 and runner plate 51, the bottom of filling with liquid rubber cup 3 is middle to inner process formation positive stop lug boss 31, positive stop lug boss 31 fill with liquid time for withstanding the bottom of runner plate 51, in positive stop lug boss 31, sulfuration is provided with and fills with liquid skeleton 32, positive stop lug boss 31 is radially recessed to form the filling liquid runner 33 be connected with reservoir chamber 4, the radial depressions part 34 of positive stop lug boss 31 is provided with and the filling fluid through-hole 35 of filling with liquid runner 33 and being connected, fill with in fluid through-hole 35 and be provided with Sealing 6.Filling liquid rifle only need withstand when filling with liquid and fill with fluid through-hole 35 by this hydraulic mount, now fill with after liquid rubber cup 3 is subject to filling with the extruding of liquid rifle and deform, when positive stop lug boss 31 pushes up the bottom of runner plate 51, the liquid that filling liquid rifle pours into flows in reservoir chamber 4 by filling with liquid runner 33, the hydraulic mount of this structure makes the process of filling with liquid more simple, fill with liquid efficiency higher, and be made up of rubber owing to filling with liquid rubber cup 3, therefore fill with liquid rifle filling with in liquid process and can fit with the perimetral tight of filling with fluid through-hole 35, this avoid vacuum before occurring filling with liquid leak gas and filling with the phenomenon that in liquid, liquid is run out of.
In the present embodiment, can sulfuration one deck rubber layer 36 on the hole wall of filling with fluid through-hole 35, Sealing 6 can adopt self-plugging rivet, and self-plugging rivet coordinates with rubber layer 36 sealing effect can be made better.
In the present embodiment, the main spring 2 of elasticity comprises sulfuration all-in-one-piece fuse 21, rubber body 22 and support frame 23, the upper joint 211 of fuse 21 is connected with motor car engine, lower joint 212 sulfuration of fuse 21 is in rubber body 22, bottom and the cavity of filling with between liquid rubber cup 3 of rubber body 22 form reservoir chamber 4, the top of support frame 23 is fixedly connected with the inwall of cover body 1, and the bottom of support frame 23 is connected with the top of filling with liquid rubber cup 3.
In the present embodiment, fill with the sealing strip 38 of tip edge that liquid rubber cup 3 comprises bowl body 37 and is arranged at bowl body 37, positive stop lug boss 31 is positioned in the middle of the bottom of bowl body 37, the top of sealing strip 38 and the bottom edge of runner plate 51 are tightly connected, and the bottom of sealing strip 38 is connected with the bottom of support frame 23.At this, the top of sealing strip 38 is provided with outstanding ring packing muscle 39, the bottom edge of runner plate 51 is provided with the annular slot 511 matched with ring packing muscle 39, the bottom of support frame 23 is circumferentially inwardly formed with annular in-flanges 231, and the bottom edge that annular in-flanges 231 withstands top that sealing strip 38 makes ring packing muscle 39 embed to realize sealing strip 38 in annular slot 511 and runner plate 51 is tightly connected.
In the present embodiment, cover body 1 forms primarily of upper cover 11 with the lower cover 12 that upper cover 11 is connected, the top of upper cover 11 is provided with top through hole 13, the bottom of lower cover 12 is provided with bottom through hole 14, the upper joint 211 of fuse 21 is stretched out by top through hole 13, and the bottom of bowl body 37 is stretched out by bottom through hole 14, and the tip edge of lower cover 12 is provided with flange 15, the bottom edge of upper cover 11 and the tip edge of support frame 23 are pushed down by flange 15, the outer wall of lower cover 12 are welded with base support 7.
The assembling process of hydraulic mount of the present invention is: the runner mechanism 5 be made up of runner plate 51, flow passage cover plate 52 and decoupling zero film 53 is put into reservoir chamber 4, put into again and fill with liquid rubber cup 3, then by the bottom flange of the support frame 23 in main for elasticity spring 2, then above all parts are fixed formation entirety, again this entirety is put in lower cover 12, then buckle into upper cover 11, finally by lower cover 12 flange with fixing all parts.
The filling liquid process of hydraulic mount of the present invention is: withstand the filling fluid through-hole 35 of filling with in liquid rubber cup 3 by filling with liquid rifle, can be out of shape because the bowl body 37 of filling with liquid rubber cup 3 is subject to filling with after liquid rifle extrudes, until the positive stop lug boss 31 of bowl body 37 pushes up the bottom of runner plate 51, now, the liquid (ethylene glycol) 8 poured into again after reservoir chamber 4 being vacuumized by filling liquid rifle can flow into reservoir chamber 4 from filling liquid runner 33, be made up of rubber owing to filling with liquid rubber cup 3, therefore fill with liquid rifle filling with in liquid process and can fit with the perimetral tight of filling with fluid through-hole 35, this avoid vacuum before occurring filling with liquid leak gas and filling with the phenomenon that in liquid, liquid is run out of, after filling liquid in reservoir chamber 4, riveting gun is used to enter to fill with in fluid through-hole 35 by self-plugging rivet riveting and seal, self-plugging rivet and the sulfuration rubber layer 36 on the hole wall of filling with fluid through-hole 35 coordinates sealing effect can be made better.
In the present embodiment, fill with liquid rubber cup 3, rubber body 22 and decoupling zero film 53 to be formed by the vulcanization of rubber, upper cover 11, lower cover 12, support frame 23, flow passage cover plate 52, base support 7 and filling liquid skeleton 32 are shaping by the steel plate punched of high strength, and fuse 21 and runner plate 51 are formed by aluminium alloy compression casting.
Claims (9)
1. the structure of a Hydraulic Mounting of Automotive Engines, it is characterized in that comprising cover body (1), be provided with the main spring of elasticity (2) in described cover body (1) and fill with liquid rubber cup (3), cavity between the main spring of described elasticity (2) and described filling liquid rubber cup (3) forms reservoir chamber (4), runner mechanism (5) is provided with in described reservoir chamber (4), described runner mechanism (5) comprises runner plate (51), positive stop lug boss (31) is formed to inner process in the middle of the bottom of described filling liquid rubber cup (3), described positive stop lug boss (31) fill with liquid time for withstanding the bottom of described runner plate (51), described positive stop lug boss (31) interior sulfuration is provided with fills with liquid skeleton (32), described positive stop lug boss (31) is radially recessed to form the filling liquid runner (33) be connected with described reservoir chamber (4), the radial depressions part (34) of described positive stop lug boss (31) is provided with the filling fluid through-hole (35) be connected with described filling liquid runner (33), Sealing (6) is provided with in described filling fluid through-hole (35).
2. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 1, on the hole wall that it is characterized in that described filling fluid through-hole (35), sulfuration has one deck rubber layer (36), and described Sealing (6) is self-plugging rivet.
3. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 1 and 2, it is characterized in that the main spring of described elasticity (2) comprises sulfuration all-in-one-piece fuse (21), rubber body (22) and support frame (23), the upper joint (211) of described fuse (21) is connected with motor car engine, lower joint (212) sulfuration of described fuse (21) is in described rubber body (22), cavity between the bottom of described rubber body (22) and described filling liquid rubber cup (3) forms described reservoir chamber (4), the top of described support frame (23) is fixedly connected with the inwall of described cover body (1), the bottom of described support frame (23) is connected with the top of described filling liquid rubber cup (3).
4. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 3, it is characterized in that described filling liquid rubber cup (3) comprises a bowl body (37) and is arranged at the sealing strip (38) of tip edge of described bowl body (37), described positive stop lug boss (31) is positioned in the middle of the bottom of described bowl body (37), the top of described sealing strip (38) and the bottom edge of described runner plate (51) are tightly connected, and the bottom of described sealing strip (38) is connected with the bottom of described support frame (23).
5. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 4, it is characterized in that the top of described sealing strip (38) is provided with outstanding ring packing muscle (39), the bottom edge of described runner plate (51) is provided with the annular slot (511) matched with described ring packing muscle (39), the bottom of described support frame (23) is circumferentially inwardly formed with annular in-flanges (231), described annular in-flanges (231) withstands described sealing strip (38) makes the top of sealing strip (38) in the described annular slot (511) described in ring packing muscle (39) embedding described in realization and the bottom edge of described runner plate (51) be tightly connected.
6. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 5, it is characterized in that described runner mechanism (5) also comprises flow passage cover plate (52) and decoupling zero film (53), described flow passage cover plate (52) is connected with the top of described runner plate (51), and described decoupling zero film (53) is arranged between described flow passage cover plate (52) and described runner plate (51).
7. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 5, it is characterized in that described cover body (1) forms primarily of upper cover (11) with the lower cover (12) that described upper cover (11) is connected, the top of described upper cover (11) is provided with top through hole (13), the bottom of described lower cover (12) is provided with bottom through hole (14), the upper joint (211) of described fuse (21) is stretched out by described top through hole (13), the bottom of described bowl body (37) is stretched out by described bottom through hole (14).
8. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 7, it is characterized in that the tip edge of described lower cover (12) is provided with flange (15), the bottom edge of described upper cover (11) and the tip edge of described support frame (23) are pushed down by described flange (15).
9. the structure of a kind of Hydraulic Mounting of Automotive Engines according to claim 8, the outer wall that it is characterized in that described lower cover (12) is connected with base support (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183612.XA CN102691746B (en) | 2012-06-06 | 2012-06-06 | Automotive engine hydraulic suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183612.XA CN102691746B (en) | 2012-06-06 | 2012-06-06 | Automotive engine hydraulic suspension device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102691746A CN102691746A (en) | 2012-09-26 |
| CN102691746B true CN102691746B (en) | 2015-04-22 |
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ID=46857407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210183612.XA Expired - Fee Related CN102691746B (en) | 2012-06-06 | 2012-06-06 | Automotive engine hydraulic suspension device |
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| Country | Link |
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| CN (1) | CN102691746B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555333B (en) * | 2020-12-07 | 2023-04-07 | 宁波拓普集团股份有限公司 | Engine suspension |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646879A (en) * | 2007-03-12 | 2010-02-10 | 特雷里博格汽车德国有限责任公司 | Pneumatically damping bearing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0740747Y2 (en) * | 1988-08-30 | 1995-09-20 | 本田技研工業株式会社 | Fluid filled type anti-vibration device |
| JPH08277876A (en) * | 1995-04-05 | 1996-10-22 | Bridgestone Corp | Vibration control device |
| FR2880581B1 (en) * | 2005-01-12 | 2007-04-13 | Hutchinson Sa | METHOD FOR MANUFACTURING AN ANTI-VIBRATION DEVICE AND ANTI-VIBRATION DEVICE THAT CAN BE OBTAINED BY THIS METHOD |
| JP4823976B2 (en) * | 2007-06-25 | 2011-11-24 | 倉敷化工株式会社 | Liquid filled anti-vibration support device |
-
2012
- 2012-06-06 CN CN201210183612.XA patent/CN102691746B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646879A (en) * | 2007-03-12 | 2010-02-10 | 特雷里博格汽车德国有限责任公司 | Pneumatically damping bearing |
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| Publication number | Publication date |
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| CN102691746A (en) | 2012-09-26 |
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| C06 | Publication | ||
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Chao Inventor after: Duan Xiaocheng Inventor after: Ke Jinrui Inventor before: Yu Chao |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU CHAO TO: YU CHAO DUAN XIAOCHENG KE JINRUI |
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| CF01 | Termination of patent right due to non-payment of annual fee |