CN1743696A - Engine frame - Google Patents
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- CN1743696A CN1743696A CN 200510099635 CN200510099635A CN1743696A CN 1743696 A CN1743696 A CN 1743696A CN 200510099635 CN200510099635 CN 200510099635 CN 200510099635 A CN200510099635 A CN 200510099635A CN 1743696 A CN1743696 A CN 1743696A
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- rubber elastomer
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- stopping element
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Abstract
An engine mount wherein an elastic body connecting upper and lower rigid members has a front-back dimension of its upper half smaller than that of its lower half with the upper half constitutes a front-back direction rubber stopper portion opposed to and spaced apart from a pair of leg portions of a bridge shaped stopper member in the front-back direction by a stopper clearance. The bridge shaped stopper member is press fitted onto the elastic body and the lower rigid member by being assembled through an opening of a lower end thereof, with the lower half clamped elastically between the pair of leg portions. With the stopper member being press fitted onto the elastic body and the lower rigid member, the pressing portions of the stopper member press downwardly the shoulder portions of the elastic body causing compression deformation of the lower half, producing a state of fixation of the lower half to the stopper member.
Description
Be included in this document by reference
Japanese patent application 2004-344570 number of the submission of submitting on August 31st, 2004 on November 29th, Japanese patent application 2004-253081 number 1 and Japanese patent application 2005-054298 number the announcement of submitting on February 28th, 2005 all are comprised in herein by reference, and wherein each document all comprises specification, accompanying drawing and summary.
Technical field
The present invention relates to a kind of engine stand that adopts the vibration damping mode to support the vehicle body motor, be specifically related to a kind of engine stand structure, this engine stand structure comprises that a stopping element and an employing mode of suspending for bridge shape rigid member provides the vibration damping of motor to support.
Background technique
The dissimilar engine stands that provide the motor vibration damping to support are being used.One type is, comprises a structure that the vibration damping support of motor is provided for bridge shape stop metallic member (rigidity stopping element) and the employing mode of suspending.
JP-A-5-18428, JP-A-8-233010 and JP-A-8-296681 have announced the engine stand that is equipped with bridge shape metallic member.Yet, design of announcing in these data and difference of the present invention are, upper half part that they lack rubber elastomer constitutes a kind of like this layout of stopping part on fore-and-aft direction, and bridge shape metallic member does not constitute the stop metallic member, the stop metallic member is and the acting in conjunction of rubber stopping part that restriction moves forward and backward.
Summary of the invention
The present invention has produced the prototype of several engine mounting h type engine h framves.Shown in Fig. 7 A and 7B, as a reference examples II, the engine mounting h type engine h frame that is provided with this class bridge shape stop metallic member is created by the inventor as prototype.Among the figure, label 200 expressions are fixed on the last metallic member (going up rigid member) of motor one side, 204 expressions are fixed on the following metallic member (following rigid member) of vehicle body one side, 206 expressions rely on sulfuration in conjunction with overall fixed to these two elements and rubber elastomer that two elements are linked together.
As shown in Figure 8, last metallic member 200 integral body constitute backbone metal element (rigid support) 201, and this backbone metal element extends along same axial direction from its first axle head, is used for last metallic member 200 is connected to motor one side.The end that is fixed to this support 201 of engine reliable is supported in the mounting structure it.
The size of the first half 210 fore-and-aft directions of rubber elastomer 206 (among the figure corresponding be the right side-left to) forms rubber stopping part 212 by the first half 210 less than the size of Lower Half 208 fore-and-aft directions on fore-and-aft direction.Label 214 expressions have a pair of leg portion 216 of front and back and the bridge shape stop metallic member of bridge portion 218 of being positioned at, and at the top of rubber elastomer 206, this bridge portion 218 connects this a pair of leg portion 216.
In the drawings, for engine stand 202, promote bridge shape stop metallic member 214 downwards, make rubber elastomer 206 enter bridge shape stop metallic member 214 by the opening of stop metallic member 214 bottoms, bridge shape stop metallic member 214 is connected to rubber elastomer 206 and following metallic member 204 thus, and the Lower Half of rubber elastomer 206 208 is flexible to be clamped in this between the leg portion 216.More specifically, the front and back surface of contact 222 of the Lower Half 208 of the contact rubber elastomer 206 of the internal surface 220 elasticity extruding of the pair of brackets element that extruding cooperates, in this case, the standing part 224 of each leg portion 216 bottoms is fixed to down the standing part 226 on the metallic member 204, thus, bridge shape stop metallic member 214 is connected to rubber elastomer 206 and following metallic member 204.
This assembling condition is shown in Fig. 7 B, rubber stopping part 212 on rubber elastomer 206 first halves 210 fore-and-aft directions is positioned on the position relative with the pair of posts part 216 of stop metallic member 214, and spaced apart on fore-and-aft direction with the stop gap with them.When motor has on fore-and-aft direction when significantly relatively moving, these rubber stopping parts 212 are near leg portion 216, to produce stopping function, the front and back displacement that limiting engine is too much.
In engine stand 202, the front/rear surface of contact 222 of the internal surface 220 of the support element 216 of bridge shape stop metallic member 214 and the Lower Half 208 of rubber elastomer 206 is that simple elastic pressure contacts, rather than together adhered to one another.On the other hand, since motor adopts suspension system supports, will produce intrinsic characteristic issues so, in addition, when motor produces pitching swing relative movement, a left side/the right hand edge of just working as motor stands anti-phase vertical motion and makes motor integral body produce when shaking, since backbone metal element 201 makes it pass through rubber elastomer 206 from the whole vertically extension of the last metallic member 200 of engine stand 202 and supports with cantilevered fashion, so, as shown in Figure 8, the support 201 that is made of last metallic member 200 integral body will stand as significantly rotatablely moving on the Vertical direction among the figure.Therefore, the front/rear surface of contact 222 of the Lower Half 208 of rubber elastomer 206 will stand the fricting movement with respect to the internal surface 220 of the leg portion 216 of bridge shape stop metallic member 214, thus, rubber elastomer 206 will be touched face 222 wearing and tearing, simultaneously, Ci Shi friction will be easy to generate noise.
Therefore the object of the present invention is to provide a kind of engine stand, wherein the first half of rubber elastomer constitutes the rubber stopping part on fore-and-aft direction, and this engine stand can suppress the wearing and tearing and the noise that produce owing to friction that the surface of contact between rubber elastomer Lower Half and the bridge shape rigidity stopping element takes place simultaneously.
Mode 1 of the present invention provides a kind of engine stand that is used for vehicle, comprising: the last rigid member that can be fixed to motor one side; Can be fixed to the following rigid member of vehicle body one side; Elasticity connects the rubber elastomer of upper and lower rigid member; And the rigidity stopping element of full bridge structure, this rigidity stopping element has a pair of bridge portion that is positioned at the leg portion of front and back and connects these leg portion on rubber elastomer, along the wheel fore-and-aft direction, wherein, the size of rubber elastomer first half fore-and-aft direction is less than the size of its Lower Half fore-and-aft direction, the first half constitutes the rubber stopping part of fore-and-aft direction, and this stopping part is positioned at and divides on the relative position with the pair of column sections of bridge shape stopping element and spaced apart on fore-and-aft direction to leg portion with stop gap and this; Bridge shape stopping element is extruded cooperation and is connected to rubber elastomer and following rigid member by the opening of its lower end, and Lower Half is flexible to be clamped in this between the leg portion; Be used for going up the rigid support that rigid member is connected to motor and be integrally formed in rigid member, rubber elastomer makes motor adopt the mount supports mode to be fixed to support reliably with the cantilevered fashion supporting bracket; Last rigid member and the sulfuration of following rigid member are attached to rubber elastomer; The a pair of shaft shoulder of the ledge structure that comes out from the upper end projection of Lower Half at fore-and-aft direction partly is arranged in the front and back of rubber elastomer, and the downward crimping section of ledge structure is arranged in the position of the corresponding front and back of bridge shape stopping element; Be coupled to the stopping element of rubber elastomer and following rigid member for extruding, the crimping section of stopping element pushes the shaft shoulder part of rubber elastomer downwards, forms the compressive strain of Lower Half, produces the stationary state that Lower Half arrives stopping element.
According to aforesaid way 1, mode 2 of the present invention provides a kind of engine stand, wherein, before stopping element joins, the shape of each shaft shoulder part is, part of its contact crimping section comprises and is positioned at its outside at fore-and-aft direction make progress projection convex portion that comes out and the relative prone concave part that is positioned at its inside.
According to aforesaid way 2, mode 3 of the present invention provides a kind of engine stand, and wherein, the shape of crimping section is that it pushes the convex portion that upwards projection is come out, and relies on to connect up to this convex portion not present projection.
According among the aforesaid way 1-3 any, mode 4 of the present invention provides a kind of engine stand, wherein, each shaft shoulder partly is formed on the whole width direction of rubber elastomer, this width direction is the left and right directions of vehicle, each crimping section forms a pair of crimping section that is located at opposite end on the stopping element width direction, constitutes strengthening rib in the part between a pair of crimping section at opposite end on the width direction.
According among the aforesaid way 1-4 any, mode 5 of the present invention provides a kind of engine stand, wherein, in rubber elastomer, the part that extends downwardly into Lower Half front and back surface of contact, seat against stop member from the front and back stop surface is the extendible portion of surface of contact, and does not produce the constriction of fore-and-aft direction in midpoint.
According among the aforesaid way 1-5 any, mode 6 of the present invention provides a kind of engine stand, and wherein, vertically opposite part in crimping section forms the part that raises up in the following rigid member.
According to aforesaid way 6, mode 7 of the present invention provides a kind of engine stand, wherein, the upraised portion branch of following rigid member is included in the pressure side in the outside on its summit on the fore-and-aft direction, this pressure side extends towards the internal surface of the leg portion relative with it when it extends downwards, and the corresponding shaft shoulder of rubber elastomer 16 partly is arranged to extend beyond the summit towards the internal surface of respective strut part.
According to aforesaid way 7, mode 8 of the present invention provides a kind of engine stand, wherein, and the shaft shoulder of the rubber elastomer part part that on their most form peripheral edge portions, fore-and-aft direction, raises up.
According among the aforesaid way 6-8 any, mode 9 is a kind of engine stands, and wherein, the convex portion of following rigid member embeds the inside of rubber elastomer Lower Half, suppresses the effect of rubber elastomer inside to the Lower Half that clamped by stopping element as possible.
According to aforesaid way 9, mode 10 is a kind of engine stands, wherein, the convex portion of following rigid member has the straight line type part that rises along bridge shape stopping element leg portion straight line, form the thin rubber layer in straight line type part and leg portion respectively, these thin rubber layers constitute the part of rubber elastomer.
According among the aforesaid way 1-10 any, mode 11 is a kind of engine stands, and wherein, following rigid member is partially embedded into rubber elastomer to the overall fixed of rubber elastomer, forming the rubber bottom under the rigid member down, the rubber bottom constitutes the part of rubber elastomer.
[working of an invention and effect]
In the present invention mentioned above, this of the ledge structure that projects upwards in front and back partly is arranged in the upper end of rubber elastomer Lower Half to the shaft shoulder, and the downward crimping section of a pair of ledge structure is arranged in the corresponding front and back position of bridge shape stopping element.When being connected stopping element by extruding, push away the shaft shoulder part of rubber elastomer under the crimping section, the Lower Half that produces rubber elastomer is fixed to the state of stopping element.
According to the present invention, engine stand adopts the mode of suspending to support motor, just, because a left side/right side of motor is shaken in the pitching swing, add owing on last rigid member, adopt the whole formation of cantilevered fashion support, support has born in vertical direction and has significantly rotatablely moved and act on very tall and big power and the relative movement (motion on the left and right vehicle wheel direction) that produces rubber elastomer Lower Half and bridge shape stopping element, in addition, rubber elastomer is not attached to bridge shape stopping element, even under above situation, still might be by the fixation of crimping section, move at motor, especially, mainly be in the process that a left side/right side of motor was shaken during above-mentioned pitching was swung, suppress to rub between the surface of contact of rubber elastomer Lower Half and the stopping element, thereby better prevent the wearing and tearing of the rubber elastomer that produces owing to this friction, equally effectively prevent this fricative noise.In addition, for the present invention, following rigid member and last rigid member together, whole sulfuration is attached to rubber elastomer, the strong firm power of time rigid member to the rubber elastomer Lower Half is provided, thereby has better prevented wearing and tearing and noise by this fricative rubber elasticity contact level.
On the other hand, engine stand hereto, the first half in the rubber elastomer, particularly the fore-and-aft direction rubber stopping part that forms at the first half, relative with bridge shape stopping element in the non-contact mode, the first half and bridge shape stopping element are opened with the stop clearance gap.Therefore, when motor bore tangible relative displacement on fore-and-aft direction, the stopping function by the rubber stopping part limited maximum displacement better.In addition, for the present invention, rely on the compressive strain tolerance that changes rubber elastomer, precompression level just, crimping section by stopping element, the elasticity coefficient of different changes and adjustment rubber elastomer is possible, and advantage is on the elasticity coefficient of adjusting engine stand bigger freedom is arranged.
Then, mode 2 is engine stands, wherein, the shape of shaft shoulder part, in particular, the shape of the part of the shaft shoulder before stopping element connects is the part of its contact crimping section, outside on its fore-and-aft direction constitutes the convex portion that upwards projection is come out, the downward relatively concave part of its inner formation.
Shape in shaft shoulder part is, such as adopt the place of identical power contact stopping element crimping section a little, the relative displacement of motor between the spreadable life will be attended by in crimping section contact and not have the stress in the fringe region between the part of contact concentrated, crackle can produce from these places, thereby produces the problem that reduces the engine stand durability.Yet, for mode 2, since the outside on the fore-and-aft direction constitutes convex portion upwards, the downward concave part of inner formation, even because the connection of stopping element is in the place of the state that is pressed down, also can better avoid the stress of above-mentioned fringe region concentrated in the shaft shoulder of rubber elastomer part.Accordingly, can better solve the problem that cracks and reduce the engine stand durability from these fringe regions, just the durability of engine stand is better to make rubber elastomer.
The shape of above-mentioned crimping section can be, its expression lobes part causes the elastic compression distortion, and the convex portion before assembling becomes by connection does not have protruding (mode 3).
Then, according to mode 4, on the one hand, on the integral width direction (left and right vehicle wheel direction) of rubber elastomer, can form above-mentioned shaft shoulder part, and crimping section partly is arranged in the two ends of stopping element width direction, and the part on the width direction between crimping section constitutes strengthening rib.So do, strengthening rib can prevent the reducing of intensity on the stopping element fore-and-aft direction that the moulding owing to crimping section causes, and simultaneously, the rigidity of stopping element and intensity can remain high rigidity and intensity on the fore-and-aft direction.
In the present invention, rubber elastomer from forward and backward stop surface extend downwardly into the Lower Half surface of contact, the part that abuts against stopping element is mutually continuous with surface of contact, and do not produce the constriction (mode 5) of fore-and-aft direction in midpoint.
Then, mode 6 is a kind of engine stands, and wherein, vertically opposite part in the stopping element crimping section forms the part that raises up in the above-mentioned rigid member down.Thereby according to mode 6, the front-end and back-end that the crimping section by stopping element and the convex portion of following rigid member can more reliable fixedly rubber elastomer Lower Halves can effectively prevent the friction of rubber elastomer stopping element with respect to surface of contact.The part that raises up of following rigid member also can produce the harder elasticity coefficient of rubber elastomer, thereby the projecting height that changes convex portion has extra benefit, and the adjustment range of rubber elastomer elasticity coefficient has enlarged.
Then, mode 7 is a kind of engine stands, wherein, the upraised portion branch of following rigid member is included in the pressure side in the outside on its summit on the fore-and-aft direction, this pressure side extends towards the leg portion internal surface relative with it when it extends downwards, and the corresponding shaft shoulder of rubber elastomer 16 partly is arranged to extend beyond the summit towards the internal surface of respective strut part.Adopt this layout, when and equipment bridge shape stopping element the time, bear the part of elastic compression distortion in the rubber elastomer because the pressure side of the part that raises up and to the internal surface extruding of leg portion for downward extruding rubber elastomer (particularly Lower Half).This layout can increase the frictional force that produces between rubber elasticity contact level and the leg portion internal surface, and the result has increased combination force and firm power.
The part that compresses by the rubber effect in the rubber elastomer by precompression, makes that the distortion that causes by rotatablely moving of support can effectively be absorbed between the internal surface of leg portion and upraised portion are divided.Equally, the combination force of increase and retention force have further effectively prevented the surface of contact of rubber elastomer Lower Half and the friction between the leg portion internal surface, thereby can more effectively prevent the friction of rubber elastomer Lower Half and the noise that causes thus.
Under the situation of mode 8, the shaft shoulder of rubber elastomer part their most form peripheral edge portions on fore-and-aft direction part that raises up.Therefore, when the downward extrusion axis shoulder portion of crimping section, the downward elastic compression distortion of the convex portion of shaft shoulder part peripheral edge portion office is transformed on the fore-and-aft direction compressive force to stopping element leg portion internal surface rapidly.Therefore, the frictional force that produces between rubber elasticity contact level and the leg portion internal surface has increased, and is corresponding, can effectively produce combination force and precompression.Thereby, can effectively prevent the friction of rubber elastomer Lower Half and the noise that causes thus.
Under the situation of mode 9, the convex portion of following rigid member embeds the inside of rubber elastomer Lower Half, and suppresses the effect of rubber elastomer inside to the Lower Half that clamped by stopping element as possible.Like this, can more effectively prevent the friction of rubber elastomer Lower Half and the noise that causes thus.
In this case, the convex portion of following rigid member has the straight line type part that rises along bridge shape stopping element leg portion straight line, form the thin rubber layer between straight line type part and leg portion, these thin rubber layers constitute the part (mode 10) of rubber elastomer.In this case, the rubber elastomer Lower Half is between straight line type part and the leg portion in the part that straight line type partly forms, one section interior thickness of intended distance is even in vertical direction, thereby, when rubber elastomer being pressed into bridge shape stopping element, can be easy to determine required magnitude of interference.
Then, mode 11 is a kind of engine stands, and wherein, following rigid member is embedded into its inside to the whole standing part of rubber elastomer, is forming the rubber bottom under the rigid member down, and this rubber bottom constitutes the part of rubber elastomer.According to mode 11, instantly rigid member is made of metallic member, it is when whole sulfuration is attached to rubber elastomer in the process of sulfidization molding, not needing provides one to be used for the cutting geometry of rigid member down to forming model, thereby can simplify the design of forming model and the structure of engine stand 10, also solve set out the suddenly problem of flame of the terminal rubber of rigid member down; In addition, can avoid going up the independent required labour force who bears of corrosion-inhibiting coating in the bottom surface (lower surface that is embedded into the part in the rubber elastomer) of following rigid member.
Description of drawings
By the description below with reference to the preferred embodiment of accompanying drawing, above-mentioned and/or other feature and advantage of the present invention will become more apparent, and same element adopts same mark, wherein:
Fig. 1 is the front perspective view according to the engine stand of first embodiment of the invention structure;
Fig. 2 is the vertical or axial cross-sectional view of engine stand among Fig. 1;
Fig. 3 is the stopping element of engine stand among Fig. 1 and the perspective exploded view of rubber elastomer;
Fig. 4 is installed in schematic representation on the vehicle for engine stand among Fig. 1;
Fig. 5 A and 5B are the figure of the installation step of engine stand in the interpretation maps 1;
Fig. 6 A and 6B are the view of the reference examples I of explanation advantage of the present invention;
Fig. 7 A and 7B are the view of the reference examples II of explanation advantage of the present invention; And
Fig. 8 is for explaining the figure of the problem among the reference examples II.
Embodiment
Below with reference to accompanying drawing, describe inventive embodiment in detail.In Fig. 1,3 and 4,10 expressions are used for the engine stand of vehicle according to embodiment, it includes the last metallic member (going up rigid member) 12 that is fixed on motor one side, be fixed on the following metallic member (following rigid member) 14 of vehicle body one side, the rubber elastomer 16 that they are linked together, and the bridge shape stop metallic member (rigidity stopping element) 18 that separates of formation and said elements.Rubber elastomer 16 is attached to upper and lower metallic member 12,14 by vulcanizing integral body in the process of its sulfidization molding.
Bridge shape stop metallic member 18 has a pair of front and back leg portion 20 and be connected this bridge portion 22 to leg portion 20 on the vehicle fore-and-aft direction.As shown in figs. 1 and 3, stop metallic member 18 is provided with strengthening rib 24 at the two ends of left and right vehicle wheel direction (paper among vertical and Fig. 2).Standing part 26 is arranged in this each bottom to leg portion, and standing part 26 is designed to be fixed to down the respective fixation part 28 of metallic member 14.
The above-mentioned metallic member 12 of going up, its part that is fixed to rubber elastomer 16 is the hollow tubular of rectangular cross-section, it is fixed to rubber elastomer 16 by the sulfuration combination when integral body embeds rubber elastomer 16.
Shown in Fig. 1,3 and 4, the support 30 that is used for fixing motor (gearbox of definitely saying so) 96 1 sides is outstanding left from last metallic member 12 integral body in the drawings, and support 30 adopts cantilevered fashion to support on rubber elastomer 16.In Fig. 4, mark 90 expression vehicle bodies, 92 are illustrated in the support of motor 96 1 sides, and 94 are illustrated in the support of vehicle body one side, are used for engine stand 10 is fixed to vehicle body 90.Just, engine stand 10 is the Left Hand Engine framves that are positioned at the left side of motor 96, provides vibration damping to support for motor 96 (definitely saying so and the motor 96 whole gearboxes that constitute) left side edge.
As shown in Figure 1, support 30 integral body are flat tubulose, and top plate 32 is arranged, lower panel 34 and side plate 36.Three of plate 32 positions form through hole 38 in the above, and plate 34 forms concentric with it through hole 38 equally below.The upper surface of plate 34 below is fixed with nut 40 (see figure 2)s concentric with through hole 38 by welding manner.This nut 40 is used for fixing motor 96 1 sides.
On the other hand, the front and rear surfaces of Lower Half 42 constitutes the surface of contact 48 that contacts with stop metallic member 18, and these surface of contact 48 contact with the internal surface 49 elasticity extruding of leg portion 20.Just, rubber elastomer 16 is clamped in its Lower Half 42 elasticity on fore-and-aft direction front/rear leg portion 20 by this of bridge shape stop metallic member 18.
In the rubber elastomer 16 of present embodiment, be connected with stop metallic member 18, the part that extends downwardly into Lower Half 42 surface of contact 48 from rubber stopping part 46 front and back stop surface 46A is extended downwards on fore-and-aft direction, be the extendible portion of surface of contact 48, and do not produce the constriction of fore-and-aft direction in midpoint.
In rubber elastomer 16, form loss of weight part (groove) 50 that passes core.In the bottom of loss of weight part 50, be formed with the rubber stopping part 52 that in jump process, produces stopping function.At the upside of last metallic member 12, be formed with at springback process in abutting connection with stop metallic member 18 bridge portions 22 so that produce the rubber stopping part 54 of stopping function.
Shown in Fig. 3,5A and 5B,, be arranged in the front and back of rubber elastomer 16 Lower Halves 42 upper ends in a pair of shaft shoulder part 56 of the last ledge structure of giving prominence to of fore-and-aft direction (being left and right directions among the figure).The downward crimping section 58 of a pair of ledge structure is arranged on the bridge shape stop metallic member 18 on the corresponding front and back position.Stop metallic member 18 in the connection combines with the pressure elasticity distortion of Lower Half 42, and shaft shoulder part 56 is extruded part 58 and pushes downwards.By this extruding force, Lower Half 42, particularly front end and back end are fixed to down metallic member 14 and bridge shape stop metallic member 18 reliably.
As shown in Figure 3, crimping section 58 is arranged in the front and back, and further broad ways (left and right vehicle wheel direction) is arranged in each end of stop metallic member 18.Part between the crimping section 58 and 58 constitutes angular surface type strengthening rib 70 (as Fig. 1) on width direction.Shown in Fig. 5 A, before stop metallic member 18 connects, being shaped as of the part of above-mentioned shaft shoulder part 56 contact crimping sections 58, the outside on its fore-and-aft direction forms the convex portion 60 that projects upwards, and the inside that links to each other with this convex portion 60 forms the relative arc concave part 62 that is downwards.Upwards the convex portion 60 of projection is positioned on most of peripheral edge of shaft shoulder part 56 fore-and-aft directions.
Accordingly, upwarding pressure of crimping section 58 mainly imposes on convex portion 60.Convex portion 60 is owing to this pressure bears resiliently deformable, and the rubber of convex portion 60 is transferred to concave part 62 simultaneously.Convex portion 60 and concave part 62 are continuous on their whole width directions, and the consistent height and the degree of depth are arranged on the width direction of rubber elastomer 16.The shape of crimping section 58 is, in case fit on, just downward expression lobes part 60 is the nothing projection up to it.Crimping section 58 has the arcuate section (circular portion) 74 with convex portion 60 homotropous arcuate section (circular portions) 72 and back-flexing.
As shown in Figure 2, above-mentioned down metallic member 14 is provided with standing part 28, is used for fixing and is embedded into rubber elastomer 16, the part that its front end and back end, the particularly crimping section in Vertical direction and stop metallic member 18 58 are relative, the formation part 64 that raises up.The part that raises up 64 has the straight line type part 64A that rises along stop metallic member 18 leg portion 20 straight lines, at the reclinate curved section 64B of upper limb and descend shape from here continuously be the incline section 64C of inclination.
Form thin rubber layer 76 between straight line type part 64A and leg portion 20, thin rubber layer 76 constitutes the part of rubber elastomer 16.Above-mentioned convex portion 64, particularly its incline section 64C have harder elastic characteristic on the Vertical direction of rubber elastomer 16.
Form rubber bottom 66 in the bottom.Rubber bottom 66 constitutes the part of rubber elastomer 16, is connected with the top of following metallic member 14 is whole.The left and right sides end face of rubber elastomer 16 metallic member 14 under covering on the direction of the paper of vertical and Fig. 2.
Shown in Fig. 5 A, in the engine stand 10 of present embodiment, bridge shape stop metallic member 18 is positioned on the rubber elastomer 16, and in the drawings, it is pushed downwards to being connected to rubber elastomer 16 and following metallic member 14.More specifically, when downward promotion stop metallic member 18, rubber elastomer 16 is press-fit in the stop metallic member 18 by the opening of bottom, the standing part 26 of stop metallic member 18 a pair of bottoms is fixed to down metallic member 14 standing parts 28, and bridge shape stop metallic member 18 is connected to rubber elastomer 16 and following metallic member 14.
At this moment, the Lower Half 42 of rubber elastomer 16 is clamped leg portion 20 elasticity by this of stop metallic member 18 on fore-and-aft direction, and Lower Half 42 front and back surface of contact 48 adopt the elasticity extruding ways of contact, are resisted against the internal surface 49 of stop metallic member 18 leg portion 20.
In addition, 58 pairs of Lower Halves of stop metallic member 18 crimping sections, 42 shaft shoulder parts 56 are exerted pressure downwards, and by the pressure of crimping section 58, Lower Half 42 front end and back end are fixed to stop metallic member 18, are in the elastic compression deformation state in vertical direction.
At this moment, Lower Half 42 front end and back end are extruded part 58 in vertical direction and following metallic member 14 clamps, and strong firm power is provided.
In the above-described embodiments, shaft shoulder part 56 is arranged on rubber elastomer 16 Lower Halves 42, is subjected to being arranged on the extruding of the corresponding crimping section 58 on the bridge shape stop metallic member 18, reliably fixing Lower Half 42.Thus, employing suspends in the engine stand 10 of support motor 96 of mode vibration damping, wherein, because a left side/right side of motor 96 is shaken in the pitching swing, add owing on last rigid member 12, adopt the whole formation of cantilevered fashion support 30, support 30 has born significantly in vertical direction and has rotatablely moved, effect has very big power and produces rubber elastomer 16 Lower Halves 42 and 18 relative movement in vehicle L-R direction of bridge shape stopping element, still might limit between the surface of contact 48 of Lower Half 42 and the stop metallic member 18 and rub, thereby better prevent from the wearing and tearing of the rubber elastomer 16 that produces owing to this friction from equally effectively to prevent this fricative noise.
In the present embodiment, last rigid member 12 and following rigid member 14 are attached to rubber elastomer 16 by sulfuration, and the strong firm power of rigid member 14 to rubber elastomer 16 Lower Halves 42 is provided down.Thereby better prevent wearing and tearing and noise by this fricative rubber elastomer 16 surface of contact 48.
In the present embodiment, since the outside on shaft shoulder part 56 fore-and-aft directions constitutes convex portion 60 and inner formation concave part 62, therefore, even rely on the connection of stop metallic members 18 and be in the place of the state that is pressed down in the shaft shoulder part 56 of rubber elastomer 16, also can avoid the stress of fringe region to concentrate.Accordingly, can effectively solve the problem that cracks and reduce the engine stand durability from these fringe regions.
Especially, shown in the reference examples I of Fig. 6 A and 6B, shape at shaft shoulder part 56A is, adopt the shape of identical power contact stop metallic member 18 crimping sections 58 a little, the relative displacement of motor between 96 spreadable lifes will be attended by in crimping section contact and not have the stress in the fringe region between the part of contact concentrated, crackle can produce from these places, thereby produces the problem that reduces engine stand 10 durability.Yet, for present embodiment,, therefore can avoid the stress in the special area to concentrate better since the shape of shaft shoulder part 56 is as mentioned above, engine stand 10 obtains better durability.
In addition, integral width direction (left and right vehicle wheel direction) at rubber elastomer 16 goes up formation shaft shoulder part 56, and crimping section 58 partly is arranged in the two ends in stop metallic member 18 width directions, and the part on the width direction between the crimping section on the end 58 constitutes strengthening rib 70.Therefore, can prevent the reducing of intensity on stop metallic member 18 fore-and-aft directions that the moulding owing to crimping section 58 causes, simultaneously, the rigidity of stopping element and intensity can remain high rigidity and intensity on the fore-and-aft direction.
In the present embodiment, vertically opposite part in stop metallic member 18 crimping sections 58 forms the part 64 that raises up in the following metallic member 14.Thereby, the front-end and back-end that the crimping section 58 by stop metallic member 18 and the convex portion 64 of following metallic member 14 can more reliable fixedly rubber elastomer 16 Lower Halves 42.Can effectively prevent of the friction of rubber elastomer 16 stop metallic members 18 equally with respect to surface of contact 48.The part 64 that raises up of following metallic member 14 also can produce a hard elasticity coefficient of rubber elastomer 16, thereby the projecting height that changes convex portion 64 has extra benefit, and the adjustment range of rubber elastomer 16 elasticity coefficient has enlarged.
According to present embodiment, on the part 64 that raises up of following metallic member 14, form arc (or another kind is chosen as inclination shape) pressure side 78, and the shaft shoulder part 56 of rubber elastomer 16 is arranged to extend beyond towards the internal surface 49 of respective strut part 20 summit of curved section 64B.Adopt this layout, when equipment stop metallic member 18, and the shaft shoulder part 56 of rubber elastomer 16 bears elastic compression when distortion by crimping section 58 on downward direction, and the part of bearing the elastic compression distortion in the rubber elastomer 16 is by pressure side 78 and to internal surface 49 extruding of leg portion 20.Thereby, the internal surface 49 of leg portion 20,20 before and after rubber elastomer 16 can be press-fit to.Adopt this layout, rubber elastomer 16, particularly its Lower Half 42 is subjected to the restriction of the power of an increase, thereby is fixed to leg portion 20 with bigger firm power.
The part of outwards pushing by pressure side 78 in the rubber elastomer 16 is being in compressive state on the fore-and-aft direction between the internal surface 49 of leg portion 20.Therefore, if support 30 moves in vertical direction, this motion can effectively be absorbed by the precompression of rubber elastomer 16.This advantage with the increase of above-mentioned firm power, can more effectively prevent the surface of contact 48 of rubber elastomer 16 and the friction between corresponding leg portion 20 internal surfaces 49.Thereby more effective preventing because the wearing and tearing of the rubber elastomer 16 that this friction causes and because the noise that this friction causes.
In addition, the convex portion 60 that projects upwards is arranged in most of form peripheral edge portions of shaft shoulder part 56 on the fore-and-aft direction.Therefore, when crimping section 58 when extruding raises up part 60 downwards, the elastic compression deformation force of generation is transformed on the fore-and-aft direction compressive force to front and back leg portion 20,20 internal surfaces 49 rapidly.Adopt this layout, the frictional force that produces between surface of contact 48 and the internal surface 49 has increased, and can produce the firm power of increase.Equally, pre-compression force has also strengthened, thereby, can effectively prevent because the wearing and tearing of the rubber elastomer 16 that this friction causes and because the noise that this friction causes.
Because the convex portion of following metallic member 14 64 embeds the inside of rubber elastomer 16 Lower Halves 42, and suppress of the effect of rubber elastomer 16 inside as possible to the Lower Half 42 that clamps by stop metallic member 18, so can more effectively prevent the friction of rubber elastomer 16 Lower Halves 42 and the noise that causes thus.
In this case, the convex portion 64 of following metallic member 14 has the straight line type part 64A that rises along bridge shape stop metallic member 18 leg portion 20 straight lines.Thereby, between straight line type part 64A and leg portion 20, form thin rubber layer 76, thin rubber layer 76 constitutes the part of rubber elastomer 16, rubber elastomer 16 second 42 be between straight line type part 64A and the leg portion 20 and in vertical direction in one section intended distance thickness even, thereby, when when metallic member being pressed into bridge shape stop metallic member 18 and connecting rubber elastomer 16, can be easy to determine required magnitude of interference.
In addition, following metallic member 14 is embedded into rubber elastomer 16 inside to the overall fixed part 28 of rubber elastomer 16.Therefore, forming rubber bottom 66 under the rigid member 14 down, rubber bottom 66 constitutes the part of rubber elastomer 16.When metallic member 14 whole sulfurations are attached to rubber elastomer 16 down in the process at sulfidization molding, not needing provides one to be used for the cutting geometry of metallic member 14 down for forming model, can simplify the design of forming model and the structure of engine stand 10, metallic member 14 terminal rubber pass in and out the problem of flame suddenly under also solving simultaneously.In addition, can avoid carrying out the labour force that the anticorrosive coat working procedure of coating need be born separately in the bottom surface of following metallic member.
In embodiment's engine stand 10,, impose on modification and adjustment that the degree of the compressive strain of Lower Half 42 can be suitable by the position of suitable chosen axis shoulder portion 56 and crimping section 58.Thereby adjustment rubber elastomer 16 that can be different is the elasticity coefficient of engine stand 10 just.Table 1 has provided under the situation that is provided with above-mentioned shaft shoulder part 56 and crimping section 58 and under the situation that does not have to be provided with, the example of vertical and front and back elasticity coefficient; As can be known, by shaft shoulder part 56 and crimping section 58 are set, the elasticity coefficient on the Vertical direction is some increase slightly from table.
Table 1
| Be provided with shaft shoulder part and crimping section | There are not shaft shoulder part and crimping section | ||
| Vertically | Front and back | Vertically | Front and back |
| 155 | 125 | 145 | 125 |
(unit: N/mm)
By adjusting elasticity coefficient by this way, thus, the elasticity coefficient of rubber elastomer 16 can be increased to the best elasticity coefficient that is easy to adjust over.
The inventive embodiments of above-mentioned detailed description only is exemplary, and various modifications will can not break away from spiritual scope of the present invention.
Claims (11)
1. engine stand (10) that is used for vehicle comprising:
Last rigid member (12) can be fixed to motor one side;
Following rigid member (14) can be fixed to vehicle body one side;
Rubber elastomer (16), rigid member and following rigid member in the flexible connection; With
Rigidity stopping element (18), it is a full bridge structure, has a pair ofly to be positioned at the leg portion (20,20) of front and back and on rubber elastomer, connect this bridge portion (22) to leg portion at the vehicle fore-and-aft direction,
Wherein, the size of the fore-and-aft direction of the first half of rubber elastomer (44) is less than the size of the fore-and-aft direction of rubber elastomer Lower Half (42),
The first half constitutes fore-and-aft direction rubber stopping part (46), and this rubber stopping part is positioned on the position relative with the leg portion of bridge shape stopping element and on fore-and-aft direction and separates so that the stop gap is alternate with described leg portion;
The opening that bridge shape stopping element passes its bottom by assembling is pressed into cooperation and is connected to rubber elastomer and following rigid member, and Lower Half elasticity is resiliently clamped in this between the leg portion;
Be used for going up the rigid support (30) that rigid member is connected to motor one side and be integrally formed in rigid member, rubber elastomer supports this support with cantilevered fashion, makes motor be fixed to this support reliably in the mode of suspending;
The whole sulfuration of last rigid member and following rigid member is attached to rubber elastomer;
The a pair of shaft shoulder part (56,56) of the ledge structure that stretches out from the upper end of Lower Half at fore-and-aft direction is arranged in the front and back of rubber elastomer, and the downward crimping section of ledge structure (58,58) is arranged in the position of the corresponding front and back of bridge shape stopping element; And
Be coupled to the stopping element of rubber elastomer and following rigid member for extruding, the crimping section of this stopping element pushes the shaft shoulder part of rubber elastomer downwards, causes the compressive strain of its Lower Half, and the generation Lower Half is fixed to the state of stopping element.
2. according to the engine stand (10) of claim 1, wherein, each shaft shoulder part (56) had the shape of the following stated before stopping element (18) connects, the part of its contact crimping section is included in fore-and-aft direction convex portion (60) that is positioned at its outside, projects upwards and the relative downward concave part (62) that is positioned at its inside.
3. according to the engine stand (10) of claim 2, wherein, the shape of crimping section (58) is that the convex portion that its extruding projects upwards (60) presents not protruding up to this convex portion dependence connection.
4. according to the engine stand (10) of claim 1 or 2, wherein, each shaft shoulder part (56) is formed on the whole width direction of rubber elastomer, the width direction of rubber elastomer is the left and right directions at vehicle, and each crimping section (58) forms a pair of crimping section (58) that is positioned at opposite end on the stopping element width direction, at this of opposite end on the width direction part between crimping section is constituted strengthening rib (70).
5. according to the engine stand (10) of claim 1 or 2, wherein, in rubber elastomer (16), from forward and backward stop surface extend downwardly into Lower Half (42) forward and backward surface of contact, abut against stopping element (18) part mutually continuous with surface of contact, and do not produce the constriction of fore-and-aft direction in midpoint.
6. according to the engine stand (10) of claim 1 or 2, wherein, vertically opposite part in crimping section forms the part (64) that raises up in the following rigid member (14).
7. according to the engine stand (10) of claim 6, wherein, each of following rigid member (14) part (64) that raises up is included in the pressure side (78) in the outside on its summit on the fore-and-aft direction, this pressure side (78) extends towards the internal surface (49) of the leg portion relative with it (20) when it extends downwards, and the corresponding shaft shoulder part (56) of rubber elastomer (16) is configured to exceed the summit and extend towards the internal surface of respective strut part (20).
8. according to the engine stand (10) of claim 7, wherein, the shaft shoulder of rubber elastomer (16) part (56) their most of form peripheral edge portions on fore-and-aft direction part (60) that raises up.
9. according to the engine stand (10) of claim 6, wherein, the convex portion (64) of following rigid member (14) embeds the inside of the Lower Half (42) of rubber elastomer (16), and suppresses the effect of rubber elastomer inside to the part of the Lower Half that clamped by stopping element (18) as possible.
10. according to the engine stand (10) of claim 9, wherein, the convex portion (64) of following rigid member (14) has the straight line type part (64A) that rises along the leg portion straight line of bridge shape stopping element, form thin rubber layer (76) respectively between straight line type part and leg portion (20), these thin rubber layers (76) constitute the part of rubber elastomer.
11. engine stand according to claim 1 or 2, wherein, the whole standing part to rubber elastomer (16) of following rigid member (14) is embedded in the rubber elastomer, is forming rubber bottom (66) under the rigid member down, and this rubber bottom (66) constitutes the part of rubber elastomer.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004253081 | 2004-08-31 | ||
| JP2004253081 | 2004-08-31 | ||
| JP2004344570 | 2004-11-29 | ||
| JP2005054298 | 2005-02-28 |
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| Publication Number | Publication Date |
|---|---|
| CN1743696A true CN1743696A (en) | 2006-03-08 |
| CN100400923C CN100400923C (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100996352A Active CN100400923C (en) | 2004-08-31 | 2005-08-30 | Engine frame |
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| Country | Link |
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| CN (1) | CN100400923C (en) |
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