CN101398026B - Mounting construction of engine hood - Google Patents
Mounting construction of engine hood Download PDFInfo
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- CN101398026B CN101398026B CN2008101682021A CN200810168202A CN101398026B CN 101398026 B CN101398026 B CN 101398026B CN 2008101682021 A CN2008101682021 A CN 2008101682021A CN 200810168202 A CN200810168202 A CN 200810168202A CN 101398026 B CN101398026 B CN 101398026B
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- car bonnet
- otch
- embedded hole
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Abstract
The present invention provides an installation structure of engine cover, which can restrain the breakage of cover side fixing part of engine cover when the engine cover is detached from a projection at engine side. When the engine cover (1) is installed on a projection (21) which extends from the engine component side through a backing ring (3) formed by elastic body, the cover side fixing part (12) comprises the following components: a surrounding wall part (16) which is set vertically from the cover body (1); a base (18) which is connected with the surrounding wall part (16); and an inosculating hole (13) which is formed on the base (18) and is inosculated with the backing ring (3). The backing ring (3) is provided with an inserting hole (31) that is inserted with the projection (21). The periphery part of blocking ring (3) is provided with a fastening part (32) which fastens with the periphery (13c) of the inosculating hole (13). Two notches (14) and (15) which extend from the inosculating hole (13) to the radial external direction of inosculating hole (13) are formed on the cover side fixing part (12).
Description
Technical field
The present invention relates to a kind of installation constitution of car bonnet, it is installed in car bonnet from starting on the lug boss that pusher side protrudes etc.
Background technology
In recent years, above automotive engine, dispose car bonnet and covering engine usually.Car bonnet has following function: cover the noise (penetrating sound) that leaks out from driving engine; And visually cover driving engine and improve aesthetic appearance in the engine room.
Current, for example as shown in Figure 6, car bonnet 9 is fixed on from the lug boss 71 of driving engine side component 7 protrusions via the gasket ring (grommet) 8 of rubber system.Car bonnet 9 has: cover main body 91; And cover side fixed part 92, protrude at its back side from cover main body 91.Cover side fixed part 92 is inner box-shaped body with receiving space 90, and it has: bottom 95, and it has the embedded hole 93 of chimeric gasket ring 8; Surrounding wall portion 96, it forms, and surrounds receiving space 90 between the back side of bottom 95 and cover main body 91; And peristome 97, it is at an end opening of surrounding wall portion 96.Gasket ring 8 is a rubber system, has to make the patchhole 81 that inserts from the lug boss 7 that starts pusher side to protrude, and has the fastener 82 that the periphery card with embedded hole 93 ends at peripheral part.In the time of on the lug boss 71 that car bonnet 9 is fixed on driving engine side component 7, gasket ring 8 is entrenched in the embedded hole 93 of cover side fixed part 92 of car bonnet 9.Lug boss 71 is inserted in the patchhole 81 of gasket ring 8.
When carrying out engine maintenance etc., car bonnet is pulled down from the driving engine side component.At this moment, gasket ring is designed to stay the car bonnet side shown in patent documentation 1,2.Specifically, in patent documentation 1,, form a plurality of protuberances that protrude to radially, utilize the elastic reactance of protuberance to prevent that gasket ring from extracting from embedded hole in the interior perimeter surface of the outer surface and the embedded hole of gasket ring.In patent documentation 2, by inner peripheral surface at gasket ring, with the chimeric position of lug boss head on otch is set, the dismounting of lug boss is carried out easily.In the structure of patent documentation 1,2,, then can dismantle car bonnet with comparalive ease if extract from lug boss along the side fixed part that axially will cover of lug boss.
But, in dismounting during car bonnet because the operator can't confirm the installation constitution of car bonnet from the outside, therefore can with respect to lug boss axially, car bonnet is mentioned and is extracted from lug boss to vehicle front bevelled direction.In the case, insert the gasket ring of lug boss and can interfere with the vehicle front side of cover side fixed part, cover side fixed part may be damaged.
Patent documentation 1: the spy opens the 2004-278779 communique
Patent documentation 2: the spy opens the 2006-336743 communique
Summary of the invention
The present invention proposes in view of the above problems, and its purpose is to provide a kind of mounting structure of car bonnet, and it can suppress the breakage of the cover side fixed part of car bonnet when car bonnet is dismantled from starting the pusher side lug boss.
In order to solve aforementioned problems, the mounting structure of car bonnet of the present invention is, with car bonnet via the gasket ring that constitutes by elastic body, be installed in from starting on the pusher side lug boss that the engine parts side is extended, the cover side fixed part that this car bonnet has the cover main body and protrudes from the back side of this cover main body, it is characterized in that, aforementioned cover side fixed part be inside have a receiving space end box-shaped body arranged, it has: surrounding wall portion, and it forms an end and surrounds aforementioned receiving space from the upright setting in the back side of aforementioned cover main body; The bottom, the other end of itself and this surrounding wall portion links, and covers aforementioned receiving space; And embedded hole, it is formed on this bottom, and removably chimeric aforementioned gasket ring, aforementioned gasket ring are to be configured in the aforementioned receiving space end cylindrical body roughly to be arranged, and it has: patchhole, it inserts the aforementioned pusher side lug boss that starts; And fastener, it is formed on the peripheral part of this gasket ring, card ends the periphery of aforementioned embedded hole, aforementioned cover side fixed part, by forming from least 2 otch of aforementioned embedded hole to the radial outside extension of aforementioned embedded hole, thereby make the inlay resultant force of aforementioned fastener with respect to aforementioned embedded hole, littler than the aforementioned pusher side lug boss that starts with respect to the inlay resultant force of aforementioned patchhole.
Aforementioned 2 otch of the mounting structure of preferred car bonnet of the present invention are formed on the position of side opposite each other across aforementioned embedded hole.
Aforementioned 2 slot arrangement of the mounting structure of preferred car bonnet of the present invention are to be positioned on the fore-and-aft direction of the vehicle that carries aforementioned driving engine.
The aforementioned otch of the mounting structure of preferred car bonnet of the present invention extends to aforementioned surrounding wall portion from the aforementioned bottom of aforementioned cover side fixed part.
The closed ends of the aforementioned otch of the mounting structure of preferred car bonnet of the present invention is circular shape roughly.
The diameter of the aforementioned embedded hole of the mounting structure of preferred car bonnet of the present invention is littler than the diameter of the aforementioned peripheral part of aforementioned gasket ring.
At least a portion of the aforementioned otch of the mounting structure of preferred car bonnet of the present invention is formed on the aforementioned surrounding wall portion, and the length that is formed at the part on the aforementioned surrounding wall portion of aforementioned otch is 50～100% of the length of aforementioned surrounding wall portion.
The effect of invention
According to the mounting structure of car bonnet of the present invention, on cover side fixed part, form at least 2 otch that extend to its radial outside from embedded hole.Therefore, cover side bottom of fixing part is cut apart by at least 2 otch, utilizes the load of footpath lateral direction easily and the displacement of radius vector lateral direction, reduces in the load during with respect to the embedded hole dismounting with gasket ring.Thus, the inlay resultant force between the fastener of gasket ring and the embedded hole of car bonnet, the inlay resultant force between the patchhole of ratio engine side lug boss and gasket ring is little.And, with gasket ring during, or wish that with car bonnet during with respect to the axioversion ground dismounting of lug boss, cover side fixed part can breakage with respect to the embedded hole dismounting.
On the other hand, only form 1 from embedded hole under the situation of the otch that its footpath lateral direction is extended, embedded hole is the slightly hole enlargement of periphery of the boundary part of itself and otch only, and the inlay resultant force between the gasket ring is still very big.Relative with it, in the present invention, owing to form at least 2 otch that extend to its footpath lateral direction from embedded hole, so the periphery of embedded hole is split at least 2 parts.Divided part is used to the load from the radial outside of embedded hole, across the opposite towards each other direction displacement of otch.Therefore, compare with the situation that only forms 1 otch, the displacement of the periphery of embedded hole becomes very easy, can easily carry out the dismounting of gasket ring.
According to the mounting structure of car bonnet of the present invention, 2 otch are formed on the position of side opposite each other across embedded hole.Therefore, embedded hole is that hole enlargement is carried out at the center with the straight line that links 2 otch easily.And, can make the inlay resultant force between the embedded hole of gasket ring and car bonnet, than gasket ring with start the inlay resultant force between the pusher side lug boss little, when the dismounting car bonnet, gasket ring can be stayed reliably and be started the pusher side lug boss.
According to the mounting structure of car bonnet of the present invention, when the car bonnet that will carry the driving engine on vehicle took off, the launched hood of operator blocked, and cannot see the mounting structure of car bonnet with respect to the driving engine side component.Therefore and since with car bonnet under vehicle front tilts the situation of dismounting, go up 2 otch of configuration at car bonnet with respect to the direction of tilt (vehicle fore-and-aft direction) of gasket ring, therefore cover not cracky of side fixed part.
According to the mounting structure of car bonnet of the present invention, be not only cover side bottom of fixing part, surrounding wall portion is easy deformation also.Therefore, can make the fastener of gasket ring littler with respect to the inlay resultant force of embedded hole.
According to the mounting structure of car bonnet of the present invention, the closed ends of otch is the position that stress is concentrated easily when distortion.By making this closed ends for roughly circular-arc, stress is disperseed, can be suppressed on the closed ends and crack.
According to the mounting structure of car bonnet of the present invention, gasket ring can be not chimeric obliquely with respect to embedded hole, can stably keep coming off in the time of can also preventing to use.
According to the mounting structure of car bonnet of the present invention, can when making the easy hole enlargement of embedded hole, keep the rigidity of surrounding wall portion.
Description of drawings
Fig. 1 is the birds-eye view of the related car bonnet of embodiments of the invention.
Fig. 2 is the section-drawing of the installation constitution of the related car bonnet of embodiment.
Fig. 3 is illustrated in the method for chimeric gasket ring on the cover side fixed part of the related car bonnet of embodiment, is the oblique drawing of the installation constitution of car bonnet.
Fig. 4 is the oblique drawing from the observation of peristome side of the cover side fixed part of the related car bonnet of embodiment.
Fig. 5 represents to make the state of gasket ring when the related embedded hole of embodiment breaks away from, and is the bottom surface instruction diagram of cover side fixed part.
Fig. 6 is the oblique drawing of the installation constitution of the related car bonnet of conventional example.
The specific embodiment
Car bonnet remains on certain part of engine parts, is configured in the top of engine parts.Car bonnet is the part of covering engine parts only, also can covering engine parts integral body.Engine parts are general names of following parts: the cylinder cover hood of the engine main body that is made of cylinder and piston, the cylinder cover of covering engine main body, to the cam gear of the device of engine main body fueling and air, control air intake-exhaust, oil circulation device etc.Car bonnet remains on from the front end that starts the pusher side lug boss of engine parts protrusion.
Car bonnet has: the cover main body; And cover side fixed part, protrude at its back side from the cover main body.Cover side fixed part, be inside have a receiving space of accommodating gasket ring end box-shaped body arranged.Cover side fixed part has: the bottom, and it has the embedded hole of chimeric gasket ring removably; And surrounding wall portion, it forms between bottom and cover main body and surrounds receiving space.Cover side fixed part is not particularly limited so long as form the shape of the receiving space can accommodate gasket ring and get final product.For example, cover side bottom of fixing part can be semicircle, quadrangle, and surrounding wall portion can vertically uprightly be provided with from the cover main body, also can tilt in the mode to the bottom undergauge.
Cover side fixed part only surrounding wall portion uprightly is provided with from the cover main body, but also can between surrounding wall portion of covering the side fixed part and cover main body the flank of strengthening usefulness be set.In this case, preferably on than the low position of the closed ends of otch, link the reinforcement flank.Thus, can not hinder the hole enlargement easiness ground of embedded hole to strengthen cover side fixed part.
Embedded hole has the shape roughly the same with the fastener of gasket ring.In embedded hole, usually embedded hole axially on the dismounting gasket ring.The diameter D1 of the diameter D2 of preferred embedded hole and the fastener of gasket ring is roughly the same, and than the diameter D3 little (with reference to Fig. 2, Fig. 5) of the peripheral part of gasket ring.Thus, gasket ring can be not chimeric obliquely with respect to embedded hole, can stably keep coming off in the time of yet can preventing to use in addition.
On cover side fixed part, form at least 2 otch that extend to the footpath of embedded hole lateral direction from embedded hole.The otch number can be 2, also can be more than or equal to 3.
At least 2 otch can form on the optional position of bottom.Be under 2 the situation, preferably on side opposite each other, to form at otch across embedded hole.Especially, on the line of centers that is centered close to 2 otch of preferred embedded hole.Thus, embedded hole is the center hole enlargement with the line of centers of otch easily.Preferred 2 slot arrangement are to be positioned on the fore-and-aft direction of vehicle.Wish with car bonnet that the operator car bonnet has upwardly sloped front and rear sides at vehicle with respect to gasket ring under the situation that vehicle front is dismantled obliquely.On this direction of tilt, 2 otch are configured on the side opposite each other across embedded hole, and cover side fixed part can be not damaged.Otch more than or equal to 3 situation under, for example week of embedded hole upwards with the angle configurations of equalization.In the case, the bottom is cut apart equably, and the stress that is subjected to when the dismounting gasket ring is disperseed equably.In addition, also can be at the periphery of embedded hole, slit configuration on the position that stress is concentrated easily when the dismounting gasket ring.Thus, can prevent stress concentration.
Otch passes through to extend to the footpath of embedded hole lateral direction from embedded hole, thereby is communicated with embedded hole, and is formed at least on the periphery of embedded hole.In the case, otch also can only be positioned at the bottom and closed ends be positioned at the bottom.In addition, preferred otch extends to the peripheral end of bottom from cover side bottom of fixing part embedded hole.Thus, bottom integrated is separated into a plurality of cutting parts, and the inlay resultant force between embedded hole and the gasket ring is further reduced.
More preferably otch is positioned at the identical state of width of the part of surrounding wall portion so that be positioned at the partial sum of bottom in the otch, via the outer peripheral edges portion of bottom until surrounding wall portion.Thus, can reduce inlay resultant force between embedded hole and the gasket ring effectively.In the case, the closed ends of otch is positioned at surrounding wall portion.The length L that is formed on the part on the surrounding wall portion 1 of the otch of preferred this moment with respect to the length L 2 of surrounding wall portion, is 50～100% (with reference to Fig. 3).The rigidity that can when making embedded hole hole enlargement easily, keep thus, surrounding wall portion.
In addition, at least 2 otch 1 can be communicated with the peristome on the surrounding wall portion that is formed on cover side fixed part.In the case, can reduce inlay resultant force between embedded hole and the gasket ring effectively.In this manual, peristome is meant the opening big or littler than the width of otch.Under the width of the peristome situation bigger than kerf width, peristome also can be the size that gasket ring can be inserted from the outside of cover side fixed part the in-to-in receiving space.In the case, can be chimeric from peristome through otch and embedded hole by making gasket ring, be inserted in the receiving space.Make gasket ring under the peristome situation chimeric via otch and fitting portion, because the inlay resultant force of the embedded hole during through otch reduces, the load in the time of therefore can making the dismounting gasket ring reduces.
An end of otch is the open end towards embedded hole, and another end is the closed ends that is usually located on bottom or the surrounding wall portion.In order to suppress stress concentration, preferred closed ends is for roughly circular-arc.For the otch that is communicated with peristome, two ends all become open end.
Width H1, the H2 of preferred otch is than the diameter D2 little (with reference to Fig. 5) of embedded hole.Thus, can prevent that gasket ring from entering in the otch, the installation site that prevents car bonnet is departed from or car bonnet comes off.In addition, in the same manner, come off in order to prevent car bonnet, width H1, the H2 of preferred otch are littler than the diameter D1 of the fastener of gasket ring.Width H1, the H2 of at least 2 otch can be mutually the same width, also can be different.
On the outer peripheral face of gasket ring, form the groove shape fastener that ends with the embedded hole card.In the inside of gasket ring, form and make the patchhole that starts the pusher side lug boss to insert that protrudes from the driving engine side component.
Gasket ring can use known elastomeric materials such as rubber and elastic body, utilizes known method moulding such as injection mo(u)lding.In the case, the patchhole of gasket ring for example uses slide core that the patchhole moulding uses and moulding in mould.
Car bonnet can utilize known method moulding such as injection mo(u)lding with known resin material such as PP, PA as raw material.The cover side fixed part of car bonnet can with cover main body moulding integratedly, also can be after moulding respectively, fix by hot pressing, deposition, bonding, screw threaded.
Embodiment
Below, based on accompanying drawing embodiments of the invention are described.Fig. 1 is the birds-eye view of car bonnet.Fig. 2 is the section-drawing of the installation constitution of car bonnet.Fig. 3 represents gasket ring is entrenched in method on the cover side fixed part of car bonnet, is the oblique drawing of the installation constitution of car bonnet.Fig. 4 is the oblique drawing from the car bonnet of the peristome side observation of cover side fixed part.The bottom surface instruction diagram of the cover side fixed part when Fig. 5 is the dismounting gasket ring.
The installation constitution of the car bonnet that this is routine as shown in Figure 1 and Figure 2, via the gasket ring 3 that is made of elastic body, is installed in car bonnet 1 from the conduct of engine parts 2 extensions and starts on the lug boss 21 of pusher side lug boss.Engine parts 2 are for being arranged on the cylinder cover hood on driving engine top.On 4 positions of the left and right sides separately of the front side on engine parts 2 tops and rear side, the lug boss 21 that protrudes upward is set.
As Fig. 3～shown in Figure 5, car bonnet 1 has: cover main body 11; And cover side fixed part 12, its back side 11a from cover main body 11 protrudes.Cover side fixed part 12 for inner have a receiving space 10 end box-shaped body arranged, it has: bottom 18, it has the embedded hole 13 of chimeric gasket ring 3; Surrounding wall portion 16, it forms between the back side of bottom 18 and cover main body 11 and surrounds receiving space 10; And peristome 17, it is in surrounding wall portion 16 upper sheds and towards receiving space 10.Car bonnet 1 is provided with 4 cover side fixed parts 12, and all peristomes 17 are all towards the vehicle body rear.
Cover side fixed part 12 inserts gasket ring 3 in receiving space 10, make gasket ring 3 and embedded hole 13 chimeric.The bottom 18 of cover side fixed part 12 is for roughly semicircle, by from circular-arc outer end 15a to surrounding wall portion 16 encirclements of hole enlargement gradually of cover main body 11.Linearity peripheral end 18d in the peripheral end of semi-round bottom 18 does not link with surrounding wall portion 16, its with cover between the main body 12, have can interpolation gasket ring 3 sized opening portion 17.
On the bottom 18 of cover side fixed part 12, form the connecting hole 13 that card ends gasket ring 3.Connecting hole 13 utilize with the outer peripheral face that is formed on gasket ring 3 on the roughly the same shape of fastener 32, make fastener 32 chimeric.
On the bottom 18 of cover side fixed part 12, form 2 otch 14,15 that extend to the footpath of embedded hole 13 lateral direction from embedded hole 13.Otch 14 from embedded hole 13 via the peripheral end 18c of bottom 18 until surrounding wall portion 16.Therefore, cut 14 by be positioned at the bottom on 18 bottom otch 14a and the perisporium otch 14b that is positioned on the surrounding wall portion 16 constitute.Another otch 15 is disposed between peristome 17 and the embedded hole 13, is communicated with the two. Cut 14,15 embedded holes 13 in bottom 18, be formed on the position of a side opposite each other for 2. Otch 14,15 is configured to, and with respect to embedded hole 13, is positioned on the fore-and-aft direction of the vehicle that carries driving engine.The otch 14 that extends to surrounding wall portion 16 is positioned at the vehicle body front side with respect to embedded hole 13, and the otch 15 that is communicated with peristome 17 is positioned at the vehicle body rear side with respect to embedded hole 13.That is, with respect to embedded hole 13, in vehicle front side slit configuration 14, at rear view of vehicle side slit configuration 15 and peristome 17, peristome 17, embedded hole 13 and otch 14,15 being centered close on the straight line separately.
As shown in Figure 5, the diameter D1 that ends the fastener 32 of preceding gasket ring 3 with embedded hole 13 cards is 15.5mm, and the diameter D2 of embedded hole 13 is 15mm.The diameter D2 of embedded hole 13 is than the little 0.5mm of diameter D1 of the fastener 32 of gasket ring 3.Fastener 32 ends on embedded hole 13 by card and is held with the state of side direction extruding in by radius vector.Cutting 14 width H1 is 1mm, and bottom otch 14a is identical with perisporium otch 14b width.The width H2 of otch 15 is 10mm.The diameter D3 of the peripheral part 3a of gasket ring 3 is 19mm (Fig. 2).The width H2 of otch 14 width H1 and otch 15 is littler than the diameter D1 of the fastener 32 of gasket ring 3.
As shown in Figure 3, being formed at the length L 1 of the perisporium otch 14b on the surrounding wall portion 16, is 75% with respect to the length L 2 of surrounding wall portion 16.The closed ends 14c of perisporium otch 14b is for roughly circular-arc.
Car bonnet 1 as raw material, utilizes method moulding such as injection mo(u)lding with resin materials such as PP, PA.The cover side fixed part 12 of car bonnet 1 is with the moulding integratedly of cover main body 11.
When being installed in car bonnet 1 on the driving engine side component 2, make the peristome 17 of the fastener 32 of gasket ring 3 from the cover side fixed part 12 of car bonnet 1, via otch 15, intercalation is gone in the embedded hole 13.Thus, gasket ring 3 remains in the receiving space 10 of cover side fixed part 12 under the state that the opening periphery 3b that makes patchhole 31 exposes to the outside from embedded hole 13.As shown in Figure 1, on 4 positions on the cover main body 11, form owing to cover side fixed part 12, therefore chimeric with gasket ring 3 on all 4 positions.In addition, gasket ring 3 also can embed from the axial lateral of embedded hole 13 is inboard.Then, as shown in Figure 2, will be configured in the top of driving engine side component 2 with the chimeric car bonnet 1 of gasket ring 3.At this moment, car bonnet 1 remains on the general horizontal direction with respect to driving engine side component 2.Then, car bonnet 1 is descended, gasket ring 3 is pushed and is connected to from 4 lug bosses 21 of driving engine side component 2 protrusions.Thus, as shown in Figure 2, lug boss 21 inserts in the patchhole 31 of each gasket ring 3.In addition, also can make lug boss 21 insert the patchhole 31 of gasket rings 3 in advance after, gasket ring 3 is chimeric with the cover side fixed part 12 of car bonnet 1.
Car bonnet 1 during from driving engine side component 2 dismounting, under the state that maintains with respect to engine parts 2 on the general horizontal direction, is being mentioned car bonnet 1 with respect to engine parts 2 upward.At this moment, because the bottom 18 of cover side fixed part 12 is divided into 2 cutting part 18a, 18b by 2 otch, therefore utilize the load of footpath lateral direction easily and hole enlargement.And, the inlay resultant force between the fastener 32 of gasket ring 3 and the embedded hole 13 of car bonnet 1, the inlay resultant force between the lug boss 21 of ratio engine side component 2 and the patchhole 31 of gasket ring 3 is little.Therefore, in that car bonnet 1 is mentioned during from lug boss 21 dismounting, gasket ring 3 is stayed on the lug boss 21 with the state of the front end that covers lug boss 21, only car bonnet 1 is pulled down from lug boss 21.
In addition, shown in the long and two-short dash line of Fig. 2, when dismounting is equipped on the car bonnet of the driving engine on the vehicle, exist the operator to wish car bonnet is tilted and the situation of dismounting to vehicle front.In the case, car bonnet 1 is to be raised from driving engine side component 2 to vehicle front bevelled state.The cover side fixed part 12 of car bonnet 1 forwards tilts with respect to gasket ring 3.At vehicle body front side, the vehicle body rear side of cover side fixed part 12, the otch 14 that is communicated with embedded hole 13, otch 15 be opening respectively.Thus, embedded hole 13 can hole enlargement easily under with respect to gasket ring 3 bevelled states, and gasket ring 3 is broken away from.
In this example, as shown in Figure 5, from embedded hole 13 towards the radial outside of embedded hole 13 and form 2 otch 14,15.Therefore, the bottom 18 of cover side fixed part 12 is split into 2 cutting part 18a, 18b, thereby easily utilizes the load radius vector lateral direction displacement of the footpath lateral direction of embedded hole 13.And with gasket ring 3 during to embedded hole 13 dismounting, embedded hole 13 can utilize gasket ring 3 to carry out hole enlargement to the radial outside pushing and with low load.Thus, can be easily with gasket ring 3 with respect to car bonnet 1 dismounting.
In addition, owing on the bottom 18 of cover side fixed part 12, form 2 otch 14,15, therefore the inlay resultant force between the embedded hole 13 of the fastener 32 of gasket ring 3 and car bonnet 1 is compared less with the inlay resultant force between the patchhole 31 of the lug boss 21 of driving engine side component 2 and gasket ring 3.Therefore, with car bonnet 1 during from driving engine side component 2 dismounting, gasket ring 3 is stayed on the driving engine side component 2 with the state of the front end that covers lug boss 21, only with car bonnet 1 from 2 dismountings of driving engine side component.Therefore, the breakage of car bonnet 1 in the time of can being suppressed at car bonnet 1 dismounting.
In addition, otch 14 is formed on across embedded hole 13 on the position of opposition side of another otch 15.Therefore, embedded hole 13 is the center hole enlargement to link otch 14 and to cut 15 straight line easily.And, can make the inlay resultant force between the embedded hole of gasket ring 3 and car bonnet 1, littler than the inlay resultant force between gasket ring 3 and the lug boss 21.Therefore, when car bonnet is pulled down, can reliably gasket ring 3 be stayed on the driving engine side component 2.
In addition, with car bonnet 1 dismounting the time, car bonnet 1 is raised obliquely to vehicle front sometimes.In the case, by otch 14, otch 15 and peristome 17 are configured to be positioned on the fore-and-aft direction of vehicle, thereby otch 14, otch 15 and peristome 17 are configured on the direction of tilt (vehicle fore-and-aft direction) of car bonnet 1 with respect to gasket ring 3.Thus, the gasket ring 3 of lug boss is inserted in the cover side fixed part 12 easy hole enlargement that becomes, and is difficult for interfering with cover side fixed part 12, and the stress that is applied on the cover side fixed part 12 reduces the breakage that can prevent to cover side fixed part 12.
In addition, the closed ends 14c of otch 14 is positions that stress is concentrated easily when distortion, and this closed ends 14c is for roughly circular-arc.Therefore, the stress that is applied on the closed ends 14c is disperseed, and can be suppressed at situation about cracking on the closed ends 14c.
Claims (7)
1. the mounting structure of a car bonnet, it via the gasket ring that is made of elastic body, is installed in car bonnet from starting on the pusher side lug boss that the engine parts side is extended, and this car bonnet has the cover main body and from the cover side fixed part of the back side protrusion of this cover main body,
It is characterized in that,
Aforementioned cover side fixed part be inside have a receiving space end box-shaped body arranged, it has: surrounding wall portion, it forms an end and surrounds aforementioned receiving space from upright setting the in the back side of aforementioned cover main body; The bottom, the other end of itself and this surrounding wall portion links, and covers aforementioned receiving space; And embedded hole, it is formed on this bottom, removably chimeric aforementioned gasket ring,
Aforementioned gasket ring is to be configured in the aforementioned receiving space end cylindrical body roughly to be arranged, and it has: patchhole, and it inserts the aforementioned pusher side lug boss that starts; And fastener, it is formed on the peripheral part of this gasket ring, and card ends the periphery of aforementioned embedded hole,
Aforementioned cover side fixed part, by forming from least 2 otch of aforementioned embedded hole to the radial outside extension of aforementioned embedded hole, thereby make the inlay resultant force of aforementioned fastener with respect to aforementioned embedded hole, littler than the aforementioned pusher side lug boss that starts with respect to the inlay resultant force of aforementioned patchhole.
2. the mounting structure of car bonnet according to claim 1 is characterized in that,
Aforementioned 2 otch are formed on the position of side opposite each other across aforementioned embedded hole.
3. the mounting structure of car bonnet according to claim 2 is characterized in that
Aforementioned 2 slot arrangement are to be positioned on the fore-and-aft direction of the vehicle that carries aforementioned driving engine.
4. according to the mounting structure of any described car bonnet in the claim 1 to 3, it is characterized in that,
Aforementioned otch extends to aforementioned surrounding wall portion from the aforementioned bottom of aforementioned cover side fixed part.
5. the mounting structure of car bonnet according to claim 1 is characterized in that,
The closed ends of aforementioned otch is circular shape roughly.
6. the mounting structure of car bonnet according to claim 1 is characterized in that,
The diameter of aforementioned embedded hole is littler than the diameter of the aforementioned peripheral part of aforementioned gasket ring.
7. the mounting structure of car bonnet according to claim 1 is characterized in that,
At least a portion of aforementioned otch is formed on the aforementioned surrounding wall portion,
The length that is formed at the part on the aforementioned surrounding wall portion of aforementioned otch is 50～100% of the length of aforementioned surrounding wall portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-247151 | 2007-09-25 | ||
| JP2007247151 | 2007-09-25 | ||
| JP2007247151A JP4793359B2 (en) | 2007-09-25 | 2007-09-25 | Engine cover mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101398026A CN101398026A (en) | 2009-04-01 |
| CN101398026B true CN101398026B (en) | 2010-09-22 |
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ID=40516797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101682021A Active CN101398026B (en) | 2007-09-25 | 2008-09-25 | Mounting construction of engine hood |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4793359B2 (en) |
| CN (1) | CN101398026B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5121021B2 (en) * | 2008-09-30 | 2013-01-16 | 株式会社やまびこ | Work machine with internal combustion engine |
| JP5212739B2 (en) * | 2009-07-13 | 2013-06-19 | 豊田合成株式会社 | Engine cover mounting structure |
| JP2014066142A (en) * | 2012-09-25 | 2014-04-17 | Toyoda Gosei Co Ltd | Engine cover mounting structure |
| CN107299806A (en) * | 2017-06-23 | 2017-10-27 | 成都创科升电子科技有限责任公司 | A kind of fluid pressure type bonnet lifting apparatus |
-
2007
- 2007-09-25 JP JP2007247151A patent/JP4793359B2/en active Active
-
2008
- 2008-09-25 CN CN2008101682021A patent/CN101398026B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101398026A (en) | 2009-04-01 |
| JP2009079481A (en) | 2009-04-16 |
| JP4793359B2 (en) | 2011-10-12 |
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