CN105438263A - Subframe fastening connection structure - Google Patents

Subframe fastening connection structure Download PDF

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Publication number
CN105438263A
CN105438263A CN201510616235.8A CN201510616235A CN105438263A CN 105438263 A CN105438263 A CN 105438263A CN 201510616235 A CN201510616235 A CN 201510616235A CN 105438263 A CN105438263 A CN 105438263A
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CN
China
Prior art keywords
subframe
fabricated section
fastening
anterior
inner cylinder
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Granted
Application number
CN201510616235.8A
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Chinese (zh)
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CN105438263B (en
Inventor
三上一视
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication of CN105438263A publication Critical patent/CN105438263A/en
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Publication of CN105438263B publication Critical patent/CN105438263B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/09Means for mounting load bearing surfaces

Abstract

The invention provides a subframe fastening connection structure with good control safety and simple structure at turning. A front installation part (4a) and a back installation part (4b) comprise: an inner cylinder part (6) fastened and connected to a frame (2); an outer cylinder part (5) installed at the subframe (3); and an elastomer (7) configured to connect the inner cylinder part (6) and the outer cylinder part (5); in the front installation part (4a) and the back installation part (4b), the distance between the fastening and connection point of the inner cylinder part (6) and the frame (2) and the elastomer center (C) of the elastomer (7) is different.

Description

Subframe fastening structure
Technical field
The present invention relates to a kind of subframe fastening structure of vehicle.
Background technology
In the past, be known to a kind of back suspension device, it is being installed on the auxiliary girders such as the suspension beam of vehicle frame, subframe via resilient bushing, carrys out supporting wheels (such as with reference to patent documentation 1) via upper arm, underarm equiarm.This back suspension device is structure as follows: when turning, Lateral Force is when trailing wheel, makes suspension beam produce the displacement of above-below direction, Geometrical change amount is increased, thus the flexibility encouraging prenex direction is partial to handling safety when improving turning.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Patent Publication 2-12906 publication
The summary of invention
The problem that invention will solve
But, such as have in the vehicle as the subframe of auxiliary girder, consider by make the installation portion height of subframe (subframe is relative to the height of the fastening connecting part of vehicle frame) reduce subframe close to the mode of the height of roll center, thus the angle of roll that can reduce when turning and improve handling safety.But, during handling safety when turning will be improved by the reduction of such angle of roll, need the gap of guaranteeing subframe and circumferential component (such as Fuel Tank etc.), therefore there is the problem that fully cannot reduce the height of subframe.
Therefore, consider make there is at the both ends of the fore-and-aft direction of vehicle fabricated section subframe, vehicle frame is with the bending structure of the mode protruded upward.Thus, the height of subframe relative to the fastening connecting part of vehicle frame can either be reduced, also can guarantee the gap with above-mentioned circumferential component.But, make in the structure that this subframe, vehicle frame are bending, need the rigidity guaranteeing (reinforcement) these components, thus the manufacturing cost creating car weight and vehicle is all increasing so new problem.
Therefore, expect to have a kind of frame structure, its structure simply can not increase the manufacturing cost etc. of vehicle, and handling safety when can improve turning.
Summary of the invention
Problem of the present invention is the excellent and simple subframe fastening structure of structure of handling safety when providing a kind of turning.
The present invention solving above-mentioned problem is subframe fastening structure, it is by fastening for the subframe vehicle frame being linked to vehicle, described subframe is by the suspension arm pivot joint of the trailing wheel of described vehicle, it is characterized in that, described subframe possesses the longeron of the left and right that the fore-and-aft direction along described vehicle extends, described longeron by the anterior fabricated section that configures at the leading section of this longeron and the rear portion fabricated section that configures in the rearward end of this longeron relative to described vehicle frame by floating support, described anterior fabricated section and described rear portion fabricated section possess respectively: inner cylinder portion, it is fastening is linked to described frame sides, outer cylindrical portion, it is installed on described subframe side, and elastic body, described inner cylinder portion and described outer cylindrical portion link by it, wherein, in described anterior fabricated section and described rear portion fabricated section, described inner cylinder portion to the fastening point of contact of the fastening link of described vehicle frame and the distance of described elastomeric elastic center different.
According to this subframe fastening structure, under the state of the height of the fastening point of contact relative to vehicle frame of the inner cylinder portion of maintenance fabricated section, can only make the elastic center displacement downwards independently of each other of anterior fabricated section and rear portion fabricated section.Namely, according to subframe fastening structure of the present invention, by only making the elastic center displacement downwards independently of each other of anterior fabricated section and rear portion fabricated section, thus the effect same with reducing effect that the fastening point of contact of subframe relative to vehicle frame obtain in prior art can be played.Thus, subframe fastening structure of the present invention can maintain under the state of fabricated section relative to the height of the fastening point of contact of vehicle frame, under the state that namely can be simple structure not implementing vehicle frame etc. to strengthen waiting, improves handling safety.
In such subframe fastening structure, can also be configured to, the longeron of the described left and right of described subframe bends in the mode that the described rearward end of this longeron is higher than described leading section, for described inner cylinder portion to for the described fastening point of contact of the fastening link of described vehicle frame and the distance of described elastomeric described elastic center, this distance of described rear portion fabricated section is larger than this distance of described anterior fabricated section.
According to this subframe fastening structure, the difference of the height of the elastic center in rear portion fabricated section and anterior fabricated section can be reduced.
Invention effect
According to the present invention, handling safety during a kind of turning can be provided excellent and the simple subframe fastening structure of structure.
Accompanying drawing explanation
Fig. 1 is the block diagram of the vehicle body rear part structure of the subframe fastening structure comprising embodiments of the present invention.
Fig. 2 is the upward view that the situation unload subframe from vehicle frame in the vehicle body rear part structure shown in Fig. 1 after is shown.
Fig. 3 is the lateral plan of the subframe fastening structure of embodiments of the present invention.
Fig. 4 (a) is the IVa-IVa cutaway view of Fig. 3, and Fig. 4 (b) is the IVb-IVb cutaway view of Fig. 3.
Fig. 5 is the action specification figure of the vehicle of the subframe fastening structure possessing embodiments of the present invention.
Nomenclature:
1 subframe fastening structure
2 vehicle frames
3 subframes
4 fabricated sections
The anterior fabricated section of 4a
4b rear portion fabricated section
5 outer cylindrical portion
6 inner cylinder portion
7 elastic bodys
10 vehicle body rear part structures
11 rear frames
14 front cross rails
15 after cross members
18 rear suspensions
18a upper arm (suspension arm)
18b underarm (suspension arm)
18c Control arm (suspension arm)
34 fastening connecting parts
35 fastening connecting parts
38 bolts
39 nuts
51 secondary curb girders (longeron)
52 secondary crossbeams
54 steering swivels
C elastic center
D1 distance
D2 distance
Ft transverse force
The fastening point of contact of P
R roll center
Detailed description of the invention
Below, the subframe fastening structure of embodiments of the present invention is described.
Fig. 1 is the block diagram of the vehicle body rear part structure 10 of the subframe fastening structure 1 comprising embodiments of the present invention.Fig. 2 illustrates the upward view unloading the situation after subframe 3 from vehicle frame 2.
As shown in Figure 1, the subframe fastening structure 1 of present embodiment has the so-called floating support structure via four fabricated sections 4 (with reference to Fig. 2) comprising elastic body 7 (with reference to Fig. 4 (a) and (b)) described in detail, subframe 3 being supported on vehicle frame 2 below.It should be noted that, the symbol 4a shown in Fig. 2 represents anterior fabricated section, and symbol 4b represents rear portion fabricated section, but when not distinguishing them especially, is only called fabricated section 4.
As described later, the principal character of the subframe fastening structure 1 of present embodiment is, in four fabricated sections 4 (with reference to Fig. 2), the upper-lower height of inner cylinder portion 6 (with reference to Fig. 4 (a) and (b)) is higher than the upper-lower height of the elastic body 7 (with reference to Fig. 4 (a) and (b)) of fabricated section 4.
Below, after the integral structure of the vehicle body rear part structure 10 comprising subframe fastening structure 1 is described, subframe fastening structure 1 is described.It should be noted that, the direction upper and lower all around in present embodiment with the direction upper and lower all around shown in the arrow of the consistent Fig. 1 in the direction observed with the chaufeur occupying vehicle for benchmark.
< vehicle body rear part structure >
As shown in Figures 1 and 2, the vehicle body rear part structure 10 of present embodiment possesses vehicle frame 2 and is configured in the subframe 3 of downside of this vehicle frame 2.
Vehicle frame 2 possesses the rear frame 11,11 of left and right and the crossbeam 14,15 of front and back, and the crossbeam 14,15 of described front and back is erected between above-mentioned rear frame 11,11, and is separated from each other at predetermined intervals in the direction from front to rear of a vehicle body.
As described later, the fore-and-aft direction of rear frame 11,11 respectively along vehicle above subframe 3 of left and right is maintained rectilinear form.
Front cross rail 14 is central portion positions on the front of the fore-and-aft direction at the rear frame 11,11 than left and right, and to be erected at above-mentioned rear frame 11,11 modes over each other configure at overall width direction (left and right directions) upper long component.Both ends 14a, 14a of this front cross rail 14 are connected with the rear frame 11,11 of left and right respectively.
In addition, as shown in Figure 1, front cross rail 14 is the components of the lower beam forming rear partition wall 24.In addition, this rear partition wall 24 is connected with the inner side of right wheel cowl 26, and is connected with the inner side eliminating graphic left wheel cover in order to map conveniently.
As shown in Figures 1 and 2, after cross member 15 is with the bow member protruded downwards being erected at the rear frame 11 of left and right, 11 modes over each other configure at the rear of front cross rail 14.
Both ends 15a, 15a (in FIG, omitting the diagram of the end 15a in left side) of this after cross member 15 are connected with the rear frame 11,11 of left and right respectively.
In fig. 2, symbol 34,35 be next illustrate by subframe 3 via fabricated section 4 the fastening connecting part of fastening link.Symbol 38 is for the bolt by subframe 3 and the fastening link of vehicle frame 2.
As shown in Figure 2, subframe 3 possesses the secondary crossbeam 52,53 of the secondary curb girder 51,51 overlooking down the left and right being formed as arc and secondary curb girder 51,51 front and back being each other erected at left and right.Above-mentioned secondary curb girder 51,51 is equivalent to " longeron " mentioned in claims.In addition, the secondary curb girder 51,51 of left and right be configured to respectively arc projection the inner side of overall width direction (left and right directions) mutually faced by.
As described later, the secondary curb girder 51,51 of left and right bends in the mode that rearward end under side-looking observation is higher than leading section.
Rear and front end portion in the secondary curb girder 51,51 of such left and right is configured with the fabricated section 4 (anterior fabricated section 4a, 4a and rear portion fabricated section 4b, 4b) described in detail below.
The rear suspension 18,18 of left and right forms the wishbone suspension with the multi link type of suspension arm respectively, and described suspension arm comprises upper arm 18a, two underarms 18b, 18b and Control arm 18c.One end of above-mentioned suspension arm 18a, 18b, 18c respectively with secondary curb girder 51,51 pivot joint of left and right, their other end respectively with steering swivel 54,54 pivot joint of left and right.
< subframe fastening structure >
Next, the subframe fastening structure 1 of present embodiment is described.
Fig. 3 is the lateral plan of the subframe fastening structure of present embodiment, is the lateral plan of the situation representing the subframe fastening structure observed on the direction of the arrow shown in the symbol III of Fig. 1.
As shown in Figure 3, in the subframe fastening structure 1 of present embodiment, as described above, subframe 3 via anterior fabricated section 4a and rear portion fabricated section 4b relative to the fastening link of vehicle frame 2.
As described above, the secondary curb girder 51 of subframe 3 bends in the mode that rearward end under side-looking observation is higher than leading section.Specifically, the secondary curb girder 51 under side-looking observation bends in the mode becoming the roughly S word shape of elongation.And the both ends of secondary curb girder 51 extend along general horizontal direction respectively.
The fabricated section support 51a of drum is respectively equipped with at the both ends of secondary curb girder 51.Fabricated section support 51a is individually fixed in the both ends of secondary curb girder 51 towards the mode of above-below direction with its center shaft.
As described below, at the fabricated section support 51a of leading section, anterior fabricated section 4a is installed, at the fabricated section support 51a of rearward end, rear portion fabricated section 4b is installed.
In addition, the rear frame 11 of the vehicle frame 2 of so fastening link of secondary curb girder 51 had line interval S in the mode of the fore-and-aft direction maintenance rectilinear form along vehicle above secondary curb girder 51.
Fig. 4 (a) of following reference is the IVa-IVa cutaway view of the Fig. 3 in the cross section representing rear portion fabricated section 4b, and Fig. 4 (b) is the IVb-IVb cutaway view of the Fig. 3 in the cross section representing anterior fabricated section 4a.
At this, after rear portion fabricated section 4b is described, anterior fabricated section 4a is described.
As shown in Fig. 4 (a), rear portion fabricated section 4b, in the substantially cylindrical shape of inserting hole 6a with bolt 38, is configured in the inner side of the fabricated section support 51a of above-mentioned drum.
Rear portion fabricated section 4b possesses: outer cylindrical portion 5; Inner cylinder portion 6, configures to its inner concentric in this outer cylindrical portion 5; And the elastic body 7 of drum, it is configured in the inner side of outer cylindrical portion 5 and this outer cylindrical portion 5 is linked with inner cylinder portion 6.
Flange 5a is formed with in the mode of extending to its outside diameter in the lower end of outer cylindrical portion 5.This flange 5a abuts with the lower end of fabricated section support 51a, thus outer cylindrical portion 5 is located in the mode configured by the below of fabricated section support 51a.As the material of this outer cylindrical portion 5, as long as have the mechanical strength of regulation, be not particularly limited, usually suitably can use metal etc.
Elastic body 7 in present embodiment is set as the height roughly the same with the upper-lower height of outer cylindrical portion 5 (length).This elastic body 7 such as can be formed by neoprene elastomeric material.
Inner cylinder portion 6 is set as the height high (length) of its upper-lower height (length) than outer cylindrical portion 5 and elastic body 7.Inner cylinder portion 6 has: the linking portion 61 linked with the inner side of outer cylindrical portion 5 via elastic body 7; From the extendible portion 62 that this linking portion 61 extends upward further.In addition, about the upper-lower height (length) of the inner cylinder portion 6 in the rear portion fabricated section 4b of present embodiment is set as the roughly twice of upper-lower height (length) of elastic body 7.In other words, the upper-lower height (length) of the linking portion 61 of inner cylinder portion 6 is set as roughly the same with the upper-lower height (length) of extendible portion 62.
As the material of inner cylinder portion 6, as long as have the mechanical strength of regulation, be not particularly limited, usually suitably can use metal etc.
It should be noted that, in Fig. 4 (a), symbol 8 is the stoppers be pressed into the upper opening of fabricated section support 51a, and symbol 9 is the plates abutted with the lower end of rear portion fabricated section 4b.In addition, the inserting hole of bolt 38 is formed at the central portion of plate 9.
As described above, above such rear portion fabricated section 4b by bolt 38 the fastening fastening connecting part 35 being linked to rear frame 11.
Specifically, as shown in Fig. 4 (a), be formed with the inserting hole 35a of bolt 38 at the lower surface of the fastening connecting part 35 of rear frame 11, be configured with the nut 39 screwed togather with bolt 38 at the hollow bulb of fastening connecting part 35.
Bolt 38 is the inserting hole 6a of break-through the inner cylinder portion 6 and inserting hole 35a of fastening connecting part 35 via the plate 9 configured in the lower end of rear portion fabricated section 4b, and the front end of bolt 38 and nut 39 screw togather.Thus, secondary curb girder 51 (subframe 3) is linked to this rear frame 11 (vehicle frame 2) via the rear portion fabricated section 4b abutted with the fastening connecting part 35 of rear frame 11 in the upper end of inner cylinder portion 6 by bolt 38 is fastening.
Next, main with reference to Fig. 4 (b), anterior fabricated section 4a (with reference to Fig. 3) is described.
As described above, anterior fabricated section 4a is installed on the fabricated section support 51a arranged at the leading section of secondary curb girder 51 (with reference to Fig. 3).
This anterior fabricated section 4a, except the inner cylinder portion 6 (with reference to Fig. 4 (b)) with the upper-lower height (length) low (short) of the inner cylinder portion 6 than rear portion fabricated section 4b (with reference to Fig. 4 (a)), is formed in the same manner as the fabricated section 4b of rear portion.As described above, this anterior fabricated section 4a is by the fastening fastening connecting part 34 being linked to rear frame 11 of bolt 38.In Fig. 4 (b), symbol 34a is the inserting hole of the bolt 38 being formed at fastening connecting part 34.
About the upper-lower height (length) of the extendible portion 62 of the inner cylinder portion 6 in the anterior fabricated section 4a of present embodiment is set as the roughly half of upper-lower height (length) of linking portion 61.
It should be noted that, in Fig. 4 (b), symbol 5a is the flange of outer cylindrical portion 5, and symbol 6a is the inserting hole of the bolt 38 of anterior fabricated section 4a, and symbol 7 is elastic bodys, and symbol 8 is stoppers, and symbol 9 is plates, and symbol 39 is nuts.
As shown in Fig. 4 (a) and (b), the elastic center C of the elastic body 7 in so anterior fabricated section 4a and rear portion fabricated section 4b is defined as the middle position of upper-lower height (length) on the axle center of elastic body 7.In addition, in the present embodiment, inner cylinder portion 6 is defined as fastening point of contact P relative to the intersection point in the contact surface 11a of rear frame 11 (vehicle frame 2) and the axle center of inner cylinder portion 6.Like this, for anterior fabricated section 4a and rear portion fabricated section 4b, the distance of the elastic center C of fastening point of contact P and elastic body 7 is different.
Specifically, the pass of the distance D2 (with reference to Fig. 4 (b)) of the fastening point of contact P and elastic center C in the distance D1 (with reference to Fig. 4 (a)) of the fastening point of contact P and elastic center C in rear portion fabricated section 4b and anterior fabricated section 4a is D1 > D2.
Next, the action effect of the subframe fastening structure 1 of present embodiment is described.
Fig. 5 is the action specification figure of the vehicle V of the subframe fastening structure 1 possessing present embodiment, is the schematic diagram of situation when observing left direction jiggering right-hand corner from the rear of vehicle V.
As shown in Figure 5, in the subframe fastening structure 1 of present embodiment, trailing wheel T, T are supported on subframe 3 via suspension arm (omit diagram), subframe 3 by fabricated section 4 relative to vehicle frame 2 by floating support.That is, fabricated section 4 plays the elasticity obtained based on elastic body 7 (with reference to Fig. 4 (a) and (b)) between vehicle frame 2 and subframe 3.
In the vehicle V of subframe fastening structure 1 possessing present embodiment, when making vehicle V right-hand corner bearing circle H being beaten wheel to the right, trailing wheel T, T produce towards transverse force Ft, the Ft of turning center (omitting diagram).Consequently, produce towards the moment M of turning center at roll center R place.Based on this moment M, produce downward component Fd at the elastic center place of the fabricated section 4 in left side, the fabricated section 4 on right side produces component Fu upwards.And above-mentioned component Fu, Fd more increase, the angle of roll of vehicle V more becomes large, thus handling safety when turning exists the tendency be deteriorated.
But by make subframe 3 reduce subframe 3 relative to the fastening link height H 1 of vehicle frame 2 close to the mode of the height H 2 of roll center R relative to fastening height, the i.e. fabricated section 4 of linking of vehicle frame 2, thus angle of roll can reduce.
On the other hand, in above-mentioned prior art (with reference to " inventing the problem that will a solve " hurdle), in order to ensure subframe with the gap of circumferential component (such as Fuel Tank etc.), need above-mentioned vehicle frame, subframe etc. to be bent into convex form, do not interfere with above-mentioned circumferential component to make vehicle frame, subframe.Therefore, in the prior art, need the rigidity guaranteeing (reinforcement) vehicle frame etc., thus the manufacturing cost of car weight and vehicle all increases.
On the other hand, in the subframe fastening structure 1 of present embodiment, because inner cylinder portion 6 is from outer cylindrical portion 5 and elastic body 7 outstanding towards vehicle frame 2 side (with reference to Fig. 4 (a) and (b)), therefore, it is possible under the state of the height of the fastening point of contact P relative to vehicle frame 2 of maintenance inner cylinder portion 6, only make elastic center C (with reference to Fig. 4 (a) and (the b)) displacement downwards of fabricated section 4 (the anterior fabricated section 4a at rear portion fabricated section 4b, Fig. 4 (b) of Fig. 4 (a)).
Thus, subframe fastening structure 1 can, under the linear state maintaining vehicle frame 2 (the line interval S with reference to Fig. 3), only make the elastic center C of fabricated section 4 close to roll center R.Therefore, subframe fastening structure 1 according to the present embodiment, not needing the reinforcement carrying out for guaranteeing rigidity to vehicle frame 2 etc., therefore it also avoid car weight, situation that manufacturing cost increases, thus handling safety when can improve turning with simple structure.
In addition, subframe fastening structure 1 according to the present embodiment, also can improve NV performance by using the little elastic body 7 of spring constant.In addition, when it has been generally acknowledged that pursuit handling safety, expect the elastic body that rigidity, spring constant are large, thus NV performance and handling safety are in the relation of antinomy.But, according to the present embodiment, be shifted downwards by making elastic center C and improve handling safety, thus eliminate this antinomy.
In addition, subframe fastening structure 1 according to the present embodiment, by changing the length of the extendible portion 62 of fabricated section 4, can change the position of the elastic center C of fabricated section 4.
In addition, in the subframe fastening structure 1 of present embodiment, can inner cylinder portion 6 be set as different to the distance (D1, D2) of the elastic center C of the fastening point of contact P of vehicle frame 2 and elastic body 7.According to such subframe fastening structure 1, the position vertically displacement individually of the elastic center C in the position of the elastic center C in anterior fabricated section 4a and rear portion fabricated section 4b can be made.Therefore, according to this subframe fastening structure 1, the degree of freedom of design when carrying out the improvement of angle of roll by geom increases.
In addition, in the subframe fastening structure 1 of present embodiment, the rearward end of the secondary curb girder 51 (longeron) of subframe 3 is higher than leading section (with reference to Fig. 3).On the other hand, the distance D1 (with reference to Fig. 4 (a)) of the fastening point of contact P and elastic center C in the fabricated section 4b of rear portion sets greatly (D1 > D2), therefore, it is possible to reduce the difference of the height of the elastic center C in rear portion fabricated section 4b and anterior fabricated section 4a than the distance D2 (with reference to Fig. 4 (b)) of the fastening point of contact P and elastic center C in anterior fabricated section 4a.
Above, embodiments of the present invention are illustrated, but the invention is not restricted to above-mentioned embodiment, can implement in every way.
In the above-described embodiment, the upper-lower height (length) of the extendible portion 62 of the inner cylinder portion 6 in the fabricated section 4b of rear portion is set as roughly the same with the upper-lower height (length) of linking portion 61, and about the upper-lower height (length) of the extendible portion 62 of inner cylinder portion 6 in anterior fabricated section 4a is set as the roughly half of upper-lower height (length) of linking portion 61.But the above-mentioned extendible portion 62 in the present invention can suitably set with the ratio of the upper-lower height (length) of linking portion 61.
In addition, in the above-described embodiment, assume that the inner cylinder portion 6 anterior fabricated section 4a and rear portion this two side of fabricated section 4b arranges the situation of extendible portion 62, but either party that also can be formed as only in anterior fabricated section 4a and rear portion fabricated section 4b of the present invention arranges the structure of extendible portion 62.
In addition, in the above-described embodiment, assume the situation using the elastic body 7 of same size, shape in anterior fabricated section 4a and this two side of rear portion fabricated section 4b, but also can be formed as the structure using the elastic body 7 of mutually different size, shape in anterior fabricated section 4a and rear portion fabricated section 4b in the present invention.

Claims (2)

1. a subframe fastening structure, it is by fastening for the subframe vehicle frame being linked to vehicle, and described subframe, by the suspension arm pivot joint of the trailing wheel of described vehicle, is characterized in that,
Described subframe possesses the longeron of the left and right that the fore-and-aft direction along described vehicle extends,
Described longeron by the anterior fabricated section that configures at the leading section of this longeron and the rear portion fabricated section that configures in the rearward end of this longeron relative to described vehicle frame by floating support,
Described anterior fabricated section and described rear portion fabricated section possess respectively:
Inner cylinder portion, it is fastening is linked to described frame sides;
Outer cylindrical portion, it is installed on described subframe side; And
Elastic body, described inner cylinder portion and described outer cylindrical portion link by it,
In described anterior fabricated section and described rear portion fabricated section,
Described inner cylinder portion to the fastening point of contact of the fastening link of described vehicle frame and the distance of described elastomeric elastic center different.
2. subframe fastening structure according to claim 1, is characterized in that,
The longeron of the described left and right of described subframe bends in the mode that the described rearward end of this longeron is higher than described leading section,
For described inner cylinder portion to for the described fastening point of contact of the fastening link of described vehicle frame and the distance of described elastomeric described elastic center, this distance of described rear portion fabricated section is larger than this distance of described anterior fabricated section.
CN201510616235.8A 2014-09-24 2015-09-24 Subframe fastening structure Active CN105438263B (en)

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