CN1842459A - Subframe for vehicle and bush attaching structure - Google Patents
Subframe for vehicle and bush attaching structure Download PDFInfo
- Publication number
- CN1842459A CN1842459A CNA2005800010360A CN200580001036A CN1842459A CN 1842459 A CN1842459 A CN 1842459A CN A2005800010360 A CNA2005800010360 A CN A2005800010360A CN 200580001036 A CN200580001036 A CN 200580001036A CN 1842459 A CN1842459 A CN 1842459A
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- China
- Prior art keywords
- carriage
- mentioned
- vehicle
- crossbeam
- recess
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/02—Attaching arms to sprung part of vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
- B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/60—Subframe construction
- B60G2206/601—Hanger bracket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
- B60G2206/8103—Shaping by folding or bending
Abstract
A front cross member 202 of a rear subframe 53 has a recessed portion 221 which is recessed continuously over a longitudinal direction thereof. The recessed portion 221 is formed at a lower portion of the cross member 202 and is recessed upwardly, and an elastic bush 240 is fitted in a resulting recess. The elastic bush 240 has an elastic element 243 which connects together an inner tube 241 and an outer tube 242 which surrounds the inner tube 231 and is mounted on the rear subframe 53 at the recessed portion 221 as a bracket. The bracket 221 has bracket plate portions 263a, 263b which each have a plane which is brought into contact with an end face of the inner tube and folded-back portions 235, 235. The bracket 221 is disposed in such a manner as to hold therein both ends of the inner tube 241 and is configured such that the elastic bush 240 is mounted thereon by passing a bolt 224 through the inner tube 241.
Description
Technical field
The present invention relates to a kind of subframe for vehicle, it is installed on the car body, and is used to install suspension gear and differential gear box.
In addition, the invention still further relates to the improving technology of the bush attaching structure of resilient sleeve is installed on vehicle frame.
Background technology
Subframe for vehicle is a kind of like this parts.That is, for example cylindrical member is done to connect in length and breadth, form the structure of " well " font, on this structure, form essential installation portion.For example be formed for installing the cylindrical member of usefulness to car body at the two ends of vertical and horizontal member as this subframe for vehicle, the subframe for vehicle of this form be well-known (for example, with reference to TOHKEMY 2003-146240 communique (below, be referred to as patent documentation 1) (with reference to the 4th page, Fig. 1)).
With reference to the accompanying drawings patent documentation 1 is described.
Figure 22 is the figure that the basic structure to prior art describes, existing automobile is with in the subframe, leading section joint in subframe main body 1301 has the sleeve member 1302 that subframe is connected to automobile chassis frame, under the not enough situation of the size of subframe main body 1301, shown in Figure 22 (c), under the state that is staggered in the par 1303 of sleeve member 1302, built-up welding (welding bead 1304) is carried out in par 1303 and subframe main body 1301.
In the automobile-use subframe of patent documentation 1, the sleeve member 1302 at the two ends of subframe main body 1301 is fixed in vehicle body, and on subframe main body 1301, for example differential gear box is installed.But subframe main body 1301 easy deformation can not put forward high strength structure so the hope acquisition does not damage the lighting of subframe main body 1301.
In addition, in the bush attaching structure that by resilient sleeve various members is installed on framework such as vehicle frame by carriage, resilient sleeve comprises inner core, surrounds the urceolus of inner core, and with bonded assembly elastic body between the inner core urceolus.Such bush attaching structure is existing multiple for (for example logining No. 2601866 communique (below be designated as patent documentation 2) (Fig. 1～4) with reference to Japanese Utility Model) known to the crowd.
According to Figure 21 the bush attaching structure that is shown in patent documentation 2 is described below.Figure 21 (a) and (b) are the synoptic map of existing bush attaching structure, and Figure 21 (a) illustrates the construction profile of bush attaching structure, and Figure 21 (b) illustrates the cross section structure that dissects along the b-b line of Figure 21 (a).
This existing bush attaching structure by carriage 302 with about transverse link 303,303 be installed in swingably on the subframe 301 that is installed on vehicle body.Install by resilient sleeve 304,304 such mounting portion.
Such shown in Figure 21 (b), subframe 301 is the drawing part, and this drawing part is the U shaped sections body down that is bonded together and forms by the back lower member 307 with first framework 305 on top, the preceding lower member 306 of front side that is engaged in first framework 305 bottoms and rear side.
, for carriage 302, require it can bear fully, and can expeditiously this loading transfer be arrived subframe 301 from the load of the axial and radial effect of resilient sleeve 304,304.For this reason, wish further to improve the installation strength and the supporting rigidity of the carriage 302 that resilient sleeve 304,304 is installed.And, require the simple in structure of carriage 302.
Yet above-mentioned existing bush attaching structure is in 306,307 structures that U shaped sections carriage 302 is set of front and back lower member shown in Figure 21 (b).For further raising the installation strength and the supporting rigidity of the carriage 302 of resilient sleeve 304,304 are installed, are also had the leeway of improvement.
Summary of the invention
The subframe for vehicle that the object of the present invention is to provide a kind of intensity to be improved.
In addition, the object of the present invention is to provide and a kind ofly can further improve the installation strength of the carriage that resilient sleeve is installed and the technology of supporting rigidity by simple structure.
About the invention of technical scheme 1, subframe for vehicle has: the longeron of pair of right and left, and the longeron of this pair of right and left extends upward in the car body front and back, and the installation portion that has the car body installation portion and be used to install suspension arm; Barrel-contoured crossbeam, this barrel-contoured crossbeam extends upward at the car body right and left, is connected with the longeron of above-mentioned pair of right and left respectively, wherein, is provided with on above-mentioned crossbeam at the continuous recessed recess of length direction.
About the invention of technical scheme 2, recess is formed at the below of main body of cross-beam, and recessed upward, embeds buffer component at this recess.
Invention about technical scheme 3, barrel-contoured crossbeam be by upper plate, the place ahead side plate, lower plate, and the cross section that forms of rear side plate be roughly osed top quadrangle member, this recess is formed, its cross sectional shape on the cross-sectional plane of crossbeam is inboard recessed to the cross section, and this recess has: the reflex part that the front rack board parallel with the place ahead side plate, the tail-bracket board parallel with the rear side plate and the past, tail-bracket board turn back.
In the invention of technical scheme 1, because crossbeam has along the recessed continuously recess of its length direction, so the recess of recess becomes the such state of member of additional U font in tubular, intensity (section modulus) height at load has the advantage that can improve intensity.
In the invention of technical scheme 2, because recess is formed at the below of main body of cross-beam, and recessed upward, cooperate buffer component at this recess, so load is delivered to recess by buffer component, can support by recess, thus, have the advantage that can improve beam strength.
In the invention of technical scheme 3, because recess has the front rack board that is parallel to the place ahead side plate and is parallel to the tail-bracket board of rear side plate, so, can improve intensity (section modulus) by forward and backward carriage board at load W, have the advantage that can improve intensity.
Invention about technical scheme 4, resilient sleeve has inner core, surround the urceolus of this inner core and the elastic body that this inner core and urceolus are coupled together, this resilient sleeve is installed on the vehicle frame by carriage, the two ends of the above-mentioned inner core of above-mentioned carriage clamping, by bolt being passed this inner core, and above-mentioned resilient sleeve is installed on the vehicle frame, in this bush attaching structure, carriage has: the carriage board, and it has the plane that contacts with the end face of above-mentioned inner core; Reflex part, it turns back from this carriage board.
About the invention of technical scheme 5, above-mentioned carriage board and above-mentioned reflex part separate certain space and face mutually.
Ask 6 invention about technical scheme, above-mentioned vehicle frame constitutes with cylindrical member, and the shape of cross section that makes this cylindrical member is the inboard recessed shape to the cross section, forms above-mentioned carriage board at the medial surface of this recess, in addition, above-mentioned reflex part forms on above-mentioned cylindrical member continuously.
In the invention of technical scheme 4, at the carriage board of carriage the plane that contacts with the end face of the inner core of resilient sleeve is set, in addition, the edge of Folding holder frame plate portion, thereby reflex part is set, though simple in structure, can further improve the rigidity of carriage board by reflex part.Therefore, can further improve the installation strength and the supporting rigidity of the carriage that resilient sleeve is installed.Therefore, can support the load that acts on the carriage board from resilient sleeve fully, and expeditiously this loading transfer be arrived framework by carriage.
In the invention of technical scheme 5, make carriage board and reflex part separate certain space and face mutually, so, can correspondingly improve the rigidity of the complex that constitutes by carriage board and reflex part.Like this, can further improve the rigidity of carriage board and reflex part.
In the invention of technical scheme 6, by making inboard recessed towards the cross section of the framework that constitutes by cylindrical member, thereby form the carriage board at the medial surface of this recess, so, can be by simple structure integrally formed carriage on the framework that constitutes by cylindrical member.Therefore, need the carriage that be made of other member be installed at framework.Owing to can reduce number of components, so, the lighting of the complex that constitutes by framework and carriage can be realized, and the cost of bush attaching structure can be reduced.In addition, owing to need on framework, not connect the carriage that constitutes by other member, so, can improve the making precision of the complex that constitutes by framework and carriage.And, the load that acts on the carriage board from resilient sleeve can be delivered to framework expeditiously.
On the other hand, owing on cylindrical member, form the reflex part that turns back from the carriage board continuously, so, can positively support the load that acts on the carriage board from resilient sleeve by cylindrical member integral body by reflex part.Can improve the supporting rigidity of the carriage of supporting resilient sleeve so more expeditiously.
Description of drawings
Fig. 1 is the block diagram of the front portion of vehicle of the present invention.
Fig. 2 is the block diagram on every side of front side frame of the present invention.
Fig. 3 is the block diagram at the rear portion of vehicle of the present invention.
Fig. 4 is the block diagram of fore sub frame of the present invention.
Fig. 5 is the material instruction diagram that constitutes each member of fore sub frame of the present invention.
Fig. 6 is the planar view of fore sub frame of the present invention.
Fig. 7 is the exploded perspective view of fore sub frame of the present invention.
Fig. 8 (a)～(b) is the constructional drawing of left-hand stringer of the present invention.
Fig. 9 (a)～(b) is the constructional drawing of left-hand stringer of the present invention.
Figure 10 is the block diagram that front suspension and steering box are housed on fore sub frame of the present invention.
Figure 11 be front suspension is housed on fore sub frame of the present invention want facial planes figure.
Figure 12 is the exploded drawings of fore sub frame of the present invention, front suspension and steering box.
Figure 13 is the block diagram of Rear secondary frame for vehicle of the present invention.
Figure 14 is the material instruction diagram that constitutes each member of Rear secondary frame for vehicle of the present invention.
Figure 15 is the planar view of Rear secondary frame for vehicle of the present invention.
Figure 16 (a)～(e) is the constructional drawing of anterior crossbeam of the present invention.
Figure 17 (a)～(b) is the constructional drawing of anterior crossbeam of the present invention.
Figure 18 is the block diagram that the structure of resilient sleeve is housed on anterior crossbeam of the present invention.
Figure 19 (a)～(c) is the distortion illustration of anterior crossbeam of the present invention.
Figure 20 is the block diagram that rear suspension is housed on Rear secondary frame for vehicle of the present invention.
Figure 21 (a)～(b) is the synoptic map of sleeve installation constitution in the past.
Figure 22 (a)～(c) is the figure that in the past subframe for vehicle basic structure is described.
The specific embodiment
Preferred forms of the present invention is described below with reference to the accompanying drawings." preceding ", " back ", " left side ", " right side ", " on ", the D score direction of watching for the driver, Fr represents the front side, Rr represents rear side, L represents the left side, R represents the right side, CL represents vehicle body center (overall width center).
The summary of vehicle at first, is described according to Fig. 1～Fig. 3.
Fig. 1 is the block diagram of the front portion of vehicle of the present invention.The vehicle frame of vehicle 10 (vehicle body) 20 is a body monocoque, and its front structure mainly comprises: be positioned at the both sides of body forward structure and the left and right front side frame 21,21 that extends before and after vehicle body; Be positioned at the overall width direction outside of these front side frames 21,21 and top and before and after vehicle body, extend left and rightly put 22,22 on the shelf; Be erected at the left and right front shock absorber shell 23,23 between front side frame 21,21 and the upper framework 22,22; And the cowl board 24 that combines with anterior and left and right 22,22 the front portion of putting on the shelf of left and right front side frame 21,21.
Fig. 2 is the block diagram on every side of front side frame of the present invention.Right-hand part at fore sub frame 42 is equipped with horizontal engine 43, and in the left side of fore sub frame 42 change speed gear box 44 is installed.Rearward extend axle drive shaft 45 from the outgoing side of change speed gear box 44, carry out transmission of power.
Fig. 3 is the block diagram at the rear portion of vehicle of the present invention.The rear portion of vehicle frame 20 mainly comprises the both sides that are positioned at body tail and the left and right rear side 51,51 of extending before and after vehicle body, Rear secondary frame for vehicle 53 (subframe for vehicle) is by 4 resilient sleeves 52 that are used for vibrationproof all around ... be suspended on these rear side frameworks 51,51.
On Rear secondary frame for vehicle 53, except back differential gear box 54 is installed with hang, rear suspension 260 (with reference to Figure 20) is housed also.Rear secondary frame for vehicle 53 has left-right longeron 201,201, is located at the anterior crossbeam 202 in the place ahead, and the rear portion crossbeam 203 of being located at the rear.For avoid and the back differential gear box 54 mutual interference mutually, in the Rear secondary frame for vehicle 53, the anterior crossbeam 202 that is positioned at the front side is both ends and is the shape of level central portion towards the bending of top projection, i.e. arch.Being elaborated to anterior crossbeam 202 more after a while.
The power that axle drive shaft 45 (with reference to Fig. 2) is transmitted can be by the back differential gear in the differential gear box 54 of back, by about axle drive shaft distribute and pass to about trailing wheel.From above explanation and Fig. 2, Fig. 3 as can be known, vehicle 10 is the four-wheel drive vehicles that drive with the 43 pairs of front and back wheels of driving engine that are equipped on body forward structure.
Below, the integral structure of fore sub frame 42 is described according to Fig. 4～Fig. 7.Fig. 4 is the block diagram of fore sub frame of the present invention.Fig. 5 is the material instruction diagram that constitutes each member of fore sub frame of the present invention.Fig. 6 is the planar view of fore sub frame related to the present invention.Fig. 7 is the exploded perspective view of fore sub frame of the present invention.
As shown in Figure 4 and Figure 5, fore sub frame 42 is metallic material products, for example is aluminum products or Al-alloy products (below be generically and collectively referred to as " Al-alloy products ").In each member shown in Figure 5, material is in vain represented extruded material (extrusion molding spare) or drawable material (drawing forming spare), and the material of pears skin shape decorative pattern is represented diecasting.
As Fig. 4, Fig. 6 and shown in Figure 7, fore sub frame 42 roughly is " well " word shape (# shape) or " mouth " word shape overlooking under the state, and it is made up of following structure: the left-right longeron 61 that extends to the fore-and-aft direction of car body; Anterior crossbeam 62 is erected at that it extends to the car body left and right directions between 61 the front end; Rear portion crossbearer 63 is erected at that it extends to the car body left and right directions between the rear end of left-right longeron 61; About the 1st coupling component 64,64, with the leading section of left-right longeron 61 and the end connection of anterior crossbeam 62; Left and right sides cover plate 65, the lower surface with the rearward end of left and right longeron 61,61 covers respectively; About the 2nd coupling component 66,66 (with reference to Fig. 7), about the rearward end of longeron 61,61 connect the end of rear portion crossbeam 63.
Left and right longeron 61,61 for example is that the cornue that barrel-contoured extruded material (extrusion molded article) is made is further expanded shaping etc., makes it form the bogie side frame of the formed products of part concaveconvex shape.The crossbeam of the pipe that the extruded material (extrusion molded article) that anterior crossbeam 62 for example is a wound packages is made.Left and right the 1st coupling component the 64, the 64th is overlooked the die cast product that roughly is L word shape under the state, with integrally formed the forming of car body installation portion 64b, has the through hole 64a of up/down perforation in the corner of described car body installation portion 64b.Longeron 61,61 and anterior crossbeam 62 can be inserted in left and right the 1st coupling component 64,64, make it be bonded into one.
As shown in Figure 7, about secondary longeron 71,71 be down コ word cross section body, the vehicle body installation portion 73,73 that has the through hole 72,72 of up/down perforation with the rear portion forms.On the other hand, the cover plate 65,65 about is " コ " word cross section body up.By with the first half at least on the overlapping lower surface that is bonded on secondary longeron 71,71 of cover plate 65,65, can make secondary longeron 71,71 form closed sections.
In addition, (1) leading section of the secondary longeron 71,71 about making with about the rearward end of longeron 61,61 engage, and (2) by about the lower surface of rearward end of longeron 61,61 and the lower surface of the leading section of cover plate 65,65 on overlapping the 2nd transom 66,66 and being engaged, (3) can be bonded on longeron 61,61 two ends of rear portion crossbeam 63 integratedly.
By above explanation as can be known, secondary longeron 71,71 and cover plate 65,65 play the effect of transom that longeron 61,61 is joined integratedly to the two ends of rear portion crossbeam 63, also have the effect of longeron 61,61 concurrently.
On such rear portion crossbearer 63, the edge that forms anterior edge and rear portion is by outstanding upward a plurality of (for example all around 4) the 1st lug boss 74 in two ends, the left and right sides ..., and the edge at anterior edge and rear portion is by outstanding upward a plurality of the 2nd lug bosses 75 of central portion ...
About form each 3 arm installation portion 76 of projection upward on the secondary longeron 71,71 ..., and the stabiliser that expands upward of top, rear portion place with housing mounting portion 77,77.
In addition, the longeron 61,61 about has towards the open carriage (recess) 81,81 (with reference to Fig. 8) in the outside of vehicle-body width direction.The longeron 61 in left side has obstruction and covers 83 towards the change-speed box supporting of top opening with the die casting system of peristome 82.
Forwardly the center upper portion of crossbeam 62 is equipped with engine installation support 84, and forwardly the lower central of crossbeam 62 is equipped with jacking portion 85.
Below, the carriage 81 on the longeron 61 in left side is located in explanation according to Fig. 4, Fig. 8 and Fig. 9.Because the carriage 81 that is located on the right-hand stringer 61 is same structure with the left side, the Therefore, omited illustrates it.
Fig. 8 (a) and (b) are constructionals drawing of left-hand stringer of the present invention, and Fig. 8 (a) illustrates the bilge construction of wanting of left-hand stringer 61, and Fig. 8 (b) illustrates the bilge construction of wanting of the longeron 61 that dissects along the b-b line of Fig. 8 (a).
Fig. 9 (a) and (b) are constructionals drawing of left-hand stringer of the present invention, and the cross section part that the cross section structure after Fig. 9 (a) illustrates and dissects along the b-b line of Fig. 8 (a), Fig. 9 (b) are illustrated in Fig. 9 (a) is installed the bush attaching structure of resilient sleeve 100.
Shown in Fig. 8 and Fig. 9 (a), the longeron 61 in left side is the framework that is made of cylindrical member, and this cylindrical member is the member that is roughly tetragonal closed section that is formed by upper plate 91, foreign side's side plate 92, lower plate 93 and interior side's side plate 94.Foreign side's side plate 92 is equivalent to the left surface of fore sub frame shown in Figure 4 42.
The longeron 61 in such left side in length direction way as Fig. 9 (a) shown in, its shape of cross section towards the cross section inboard recessedly, thereby can be with this recess 81 as carriage, and on the end 97 of recess 81, offer through hole 97a.
The concrete structure of recess 81 is following cross sectional shapes, promptly, from the edge of upper plate 91 and the edge of lower plate 93 foreign side's side plate 92 is turned back in closed section, inwardly extend and formation carriage board 96,96 up and down along upper plate lower plate 91,93 side via this reflex part 95 up and down, with between its front end that stretches out as the end 97, on this end 97, offer through hole 97a.
As shown in Figure 9, the end 97, be in the position that certain interval is arranged with interior side's side plate 94, is the flat board with interior side's side plate 94 almost parallels.Through hole 97a is near the macropore of driveing to the last lower edge at the end 97.Because the end 97 is subjected to the influence of external force less, can realize the lighting of longeron 61 by offering through hole 97a.
Shown in Fig. 9 (a), reflex part 95,95th is a little expansion up and down and is the part of the cross sectional shape of ring-type from edge to the carriage board 96,96 of upper plate lower plate 91,93.Therefore, there are certain spatial portion S1, S1 in reflex part 95,95 inside.Therefore we can say, reflex part the 95, the 95th, with the longeron 61 of cartridge continuously and the part that forms. Reflex part 95,95 and carriage board 96 are by certain spatial portion S1, S1 in opposite directions.
By above explanation as can be known, recess 81 is the reflex part 95,95 that carriage 81 has carriage board 96,96 and turns back from carriage board 96,96.Like this, carriage 81 is characterised in that, is located at integratedly in the length direction way of the longeron 61 that is formed by the tubular framework (with reference to Fig. 8 (a)).In addition, carriage 81 has the bolt through hole 98 of up/down perforation.This bolt connects upper plate 91, lower plate 93 and upper and lower supporter frame plate portion 96,96 with through hole 98.
Fig. 9 (b) is illustrated in the mounting structure that elasticity bearing shell 100 is installed by carriage 81 on the longeron 61.Elasticity bearing shell 100 is inner core 101 to be connected with elastic bodys such as rubber 103 with the urceolus 102 that surrounds this inner core 101 and the shock-resistant member that constitutes, has formed arm member on the urceolus 102, for example the underarm 112 of front suspension.
When carriage 81 is configured to clamp the two ends of inner core 101 with carriage board 96,96, it is characterized in that, by inner core 101 and pass bolt and install with the bolt 104 of through hole 98.Upper and lower supporter frame plate portion 96,96 has the contacted plane of each end face with inner core 101.
Because when upper plate 91 and bracket board 96 is superimposed, lower plate 93 and bottom bracket board 96 is superimposed, therefore improved rigidity, can bind and support elasticity bearing shell 100 by each plate of 2 pieces up and down.
By above explanation as can be known, according to as Fig. 8 and sleeve installation constitution shown in Figure 9, only need to pass through the plane that setting contacts with the end face of the inner core 101 of resilient sleeve 100 on carriage board 96,96, and further the edge of carriage board 96,96 is turned back and reflex part 95,95 is set, just can further improve the rigidity of carriage board 96,96 by reflex part 95,95 with this simple structure.Therefore, can further improve the installation strength and the supporting rigidity of the carriage 81 that is used to install resilient sleeve 100.Therefore, can support the load that acts on carriage board 96,96 from resilient sleeve 100 fully by carriage 81, and this load is delivered to longeron 61 with good efficiency.
In addition, face mutually owing to make carriage board 96,96 and reflex part 95,95 separate certain space S 1, S1, so, the rigidity of the complex that constitutes by carriage board 96,96 and reflex part 95,95 can correspondingly be improved.Like this, can further improve the rigidity of carriage board 96,96 and reflex part 95,95.
In addition,, thereby form carriage board 96,96 at the medial surface of its recess 81 because the cross section of the longeron (framework) 61 by cylindrical member is made is inwards recessed, so, the longeron 61 integrally formed carriages 81 that can constitute by cylindrical member by simple structure.For this reason, need the carriage that be made of other member be installed at longeron 61.Because can reduce number of components, so, can realize the lighting of the complex that longeron 61 and carriage 81 constitute, simultaneously, can reduce the cost of bush attaching structure.In addition, owing to need not engage the carriage that constitutes by other member at longeron 61, so, can improve the accuracy of manufacture of the complex that constitutes by longeron 61 and carriage 81.And, can be delivered to longeron 61 expeditiously from the load that resilient sleeve 100 will act on carriage board 96,96.
In addition, owing to form the reflex part 95,95 that folds from carriage board 96,96 continuously at the longeron 61 that constitutes by cylindrical member, so, can positively support the load that acts on carriage board 96,96 from resilient sleeve 100 by the integral body of reflex part 95,95 usefulness longerons 61.Can improve the supporting rigidity of the carriage 81 that resilient sleeve 100 is supported more expeditiously.
Below, according to Figure 10～Figure 12 fore sub frame 42 and front suspension 110 structure on every side are described.About front suspension 110,110 be identical structure, so the explanation on right side is omitted in explanation left side only.
Figure 10 is the block diagram that front suspension and steering box are housed on fore sub frame of the present invention.
Figure 11 be front suspension is housed on fore sub frame of the present invention want facial planes figure.
Figure 12 is the exploded drawings of fore sub frame of the present invention, front suspension and steering box.
As shown in figure 10, the front suspension 110 in left side is the preceding wheel suspension system that hangs front-wheel on vehicle frame 20, mainly comprises the upper arm 111 that can be installed on front side framework 21 with swinging up and down; Be installed on the longeron 61 in left side and the underarm 112 of secondary longeron 71 swingably; Be installed on the anterior bumper 113 between underarm 112 and the preceding damping shell 23 (with reference to Fig. 1); Be connected in the joint 114 of upper arm 111 and underarm 112.
As Figure 10～shown in Figure 12, underarm 112 is to stretch out the rear portion arm 123 of the anterior arm 122 of front side and rear side and roughly be the member of " Y " word shape plan view from the joint connecting portion 121 that connects joint 114.The leading section of anterior arm 122 can be installed on the carriage 81 (with reference to Fig. 9 (b)) of longeron 61 with swinging up and down by bolt 104 by resilient sleeve 100.On the other hand, the leading section of rear portion arm 123 can be installed on back carriage 124 by the resilient sleeve (not shown) by bolt 125 with swinging up and down.Back carriage 124 is by bolt 126 ... be installed on the arm installation portion 76 of secondary longeron 71 ...
On the secondary longeron 71, stabiliser is installed in stabiliser with on the housing mounting portion 77 with carriage 131 by bolt 132,132.Stabiliser is members of the shaft-like stabiliser 133 between the underarm 112 (left side only is shown) that supports about connecting with carriage 131.
The member that steering box that crossbeam 63 double as in rear portion will extend towards the vehicle body left and right directions 141 is fixing.Steering box 141 is for accommodating the member of gear mechanism (for example power steering formula gear mechanism), and this gear mechanism is used for the steering effort of not shown bearing circle is transformed into the steering effort of the left and right directions of vehicle body, and takes out from tierod 42.Tierod 142 is connected with the arm 114a in joint 114.
The lid of on rear portion crossbeam 63, making from beginning overlapping steering box 141 and aluminium pressure diecasting successively 143, with bolt 144 ... these members are fixed in the 1st boss portion 74 together ... in addition, with bolt 145 ... to cover 143 and be fixed in the 2nd boss portion 75, thereby steering box 141 can be installed on the fore sub frame 42.
Vibrationproof is with the four jiao bottoms that are installed on vehicle frame 20 (with reference to Fig. 1) of resilient sleeve 41 with fore sub frame 42, and this vibrationproof comprises up and down in two resilient sleeve member 151,152 and hold-down bolt 153 with resilient sleeve 41.
The change speed gear box supporting peristome 82 usefulness bolts 162 of the longeron 61 in left side ... vibrationproof is installed on resilient sleeve covers 83.This resilient sleeve 161 is for being installed on change speed gear box 44 (with reference to Fig. 2) installation component of fore sub frame 42.
Below, the integral structure of Rear secondary frame for vehicle 53 is described according to Figure 13～Figure 15.Figure 13 is the block diagram of Rear secondary frame for vehicle of the present invention.Figure 14 is the material instruction diagram that constitutes each member of Rear secondary frame for vehicle of the present invention.Figure 15 is the planar view of Rear secondary frame for vehicle of the present invention.
As Figure 13 and shown in Figure 14, Rear secondary frame for vehicle 53 is a metallic material product, for example aluminum products or Al-alloy products (following general name " Al-alloy products ").The material of the white in each member shown in Figure 14 is represented extruded material (extrusion molding spare) or drawable material (drawing forming spare), and the material of pears skin shape decorative pattern is represented diecasting.
As Figure 13 and shown in Figure 15, Rear secondary frame for vehicle 53 roughly is " well " word shape (# shape) or " mouth " word shape in birds-eye view, comprise towards the fore-and-aft direction of vehicle body extend about longeron 201,201; The anterior crossbeam 202 that is erected at 333,333 of the leading sections of these longerons 201,201 and extends towards the left and right directions of vehicle body; Between the rearward end 334,334 of the longeron 201,201 about being erected at and the rear portion crossbeam 203 that extends towards the left and right directions of vehicle body.The weld part (comprise welding bead) of symbol 205 for forming by built-up welding.
About longeron 201,201 be diecasting, it is the side member that cross-sectional plane is " Contraband " font, by the foreside bodywork installation portion 211 of integrally formed outside extension respectively and the rear portion vehicle body installation portion 212 that extends from rearward end 334 towards overall width direction side, thereby become global shape roughly is " Contraband " word shape outside the overall width direction in birds-eye view member from leading section 333 towards the overall width direction.Foreside bodywork installation portion 211 and rear portion vehicle body installation portion 212 have the through hole 213 of up/down perforation at front end.
The longeron 201 in left side is identical with the longeron 201 on right side, the Therefore, omited explanation.
Anterior posterior crossbeam 202,203 is a crossbeam, this crossbeam is for for example by expansion-molded etc., the drip molding that makes square tube further partly form concaveconvex shape (suitable with recess 221,221) and obtain, this square tube is made of barrel-contoured extruded material (extrusion molding spare) or drawable material (drawing forming spare).Anterior crossbeam 202 as shown in figure 16, for fear of its with back differential gear box 54 (with reference to Fig. 3) between interference, and be formed on the curve 248 of central authorities towards top projection ground bending.In addition, anterior crossbeam 202 from central authorities towards about conjointly form recess 221,221 as carriage, link to each other with recess 221,221, form leading section 249,249 with being mated by the size slightly littler than the inner face size of preceding connecting portion 344,344.Rear portion crossbeam 203 has the installation through hole 222,222 of pair of right and left.
Can about longeron 201,201 two ends of inserting anterior posterior crossbeams 202,203, they are engaged integratedly.
Below, be located at the carriage (recess) 221 of anterior crossbeam 202 according to Figure 16～Figure 18 explanation.
Figure 16 (a)～(e) is the constructional drawing of anterior crossbeam of the present invention, Figure 16 (a) illustrates the structure of the anterior crossbeam 202 when the front is watched, Figure 16 (b) illustrates the structure of the anterior crossbeam 202 when the front lower place is watched, Figure 16 (c) illustrates the structure of the anterior crossbeam 202 that dissects along the c-c line of Figure 16 (a), Figure 16 (d) illustrates the structure of the anterior crossbeam 202 that dissects along the d-d line of Figure 16 (a), and Figure 16 (e) illustrates the structure of the anterior crossbeam 202 that dissects along the e-e line of Figure 16 (a).
Figure 17 (a) and (b) are the constructional drawing of anterior crossbeam of the present invention, Figure 17 (a) illustrates the cross section structure of the anterior crossbeam 202 that dissects along the d-d line of Figure 16 (a), and the cross section part that Figure 17 (b) is illustrated in Figure 17 (a) is installed the bush attaching structure of resilient sleeve 240.
Figure 18 is the block diagram that the structure of resilient sleeve is housed on anterior crossbeam of the present invention.
Shown in Figure 16 and Figure 17 (a), the framework of anterior crossbeam 202 for constituting by cylindrical member, this cylindrical member is for to form the roughly member of the closed section of square shape by upper plate 231, the place ahead side plate 232, lower plate 233, rear side plate 234.The place ahead side plate 232 is suitable with the front of Rear secondary frame for vehicle 53 shown in Figure 13, and lower plate is parallel to upper plate 231, and rear side plate 234 is parallel to the place ahead side plate 232.
The concrete structure of recess 221 is, promptly, in closed section, fold lower plate 233 from the edge of the place ahead side plate 232 and the edge of rear side plate 234, extend along rear, the place ahead side plate 232,234 side inwardly by the reflex part 235,235 before and after it, carriage board 236a, 236b before and after forming, with between this front end that stretches out as the end 237, rectangular cross section.
Shown in Figure 17 (a), the carriage board 236a of front side is in apart from the position of the place ahead side plate 232 certain sizes, and the carriage board 236b of rear side is in apart from the position of rear side plate 234 certain sizes.Carriage board 236a, the 236b of rear, the place ahead sidepiece 232,234 and front and back are the flat board that is parallel to each other.For this reason, in reflex part 235,235, have certain spatial portion S2, S2.Therefore, reflex part 235,235 can be described as and the part that conjointly forms as the anterior crossbeam 202 of cylindrical member.Reflex part 235,235 and carriage board 236a, 236b separate certain spatial portion S2, S2 and face mutually.The end 237, be in the position that separates certain interval with upper plate 231.
Like this, can form carriage board 236a, the 236b of front and back at the medial surface of recess 221.
As described above, it has carriage board 236a, 236b and from the folding reflex parts 235,235 of this carriage board 236a, 236b as the recess 221 of carriage.Like this, carriage 221 is characterised in that, is wholely set in vertical way of the anterior crossbeam 202 that is made of barrel-contoured framework.
In addition, as shown in figure 16, carriage 221 has the pair of right and left bolt through hole 238,238 that level connects.These bolt through holes 238,238 connect carriage board 236a, the 236b of rear, the place ahead side plate 232,234 and front and back, forwardly on the crossbeam 202, are in about the symmetrical position of overall width centre line C L.
Shown in Figure 17 (a), in bolt through hole 238, the aperture of hole portion that is in rear, the place ahead side plate 232,234 is bigger than the aperture of the hole portion that is in carriage board 236a, 236b.
Hole portion from rear side plate 234 inserts barrel-contoured lining 239 to carriage 221 in the position of bolt through hole 238, is inserted into the plate face that front end is contacted with the carriage board 236b of rear side, waits by welding from the hole portion of rear side plate 234 to engage lining 239.On the other hand, because the hole portion of the place ahead side plate 232 sides is bigger, so, can make the head turnover of bolt, also can inject instrument.
Figure 17 (b) and Figure 18 are illustrated in the sleeve installation constitution that anterior crossbeam 202 usefulness carriages 221 are installed pair of right and left resilient sleeve (buffer component) 240.Resilient sleeve 240 is provided with arm member for the vibrationproof member of elastic bodys such as rubber 243 connection inner cores 241 with the structure of the urceolus 242 that surrounds inner core 241 integratedly at urceolus 242, for example hangs the suspension arm 247 of back differential gear box 54 (with reference to Fig. 3).
Figure 17 (b) is illustrated the sequence of erection of resilient sleeve 240.At first, from the below resilient sleeve 240 being inserted into recess 221 is carriage 221, then, from the place ahead side plate 232 sides bolt 244 is inserted into bolt through hole 238, passes inner core 241 and lining 239, is screwed into nut 245.
Like this, the two ends of clamping inner core 241 by carriage board 236a, 236b and lining 239 usefulness bolts 244 and nut 245, thus resilient sleeve 240 is installed on anterior crossbeam 202.Because the carriage board 236a from the place ahead side plate 232 to the front side leaves certain size, so the head 244a of bolt 244 can not be projected into foreign side from the place ahead side plate 232.
In addition, the lining 239 that is engaged in rear side plate 234 is contacted with the plate face of the carriage board 236b of rear side, reinstates bolt 244 with the two ends one of inner core 241 and tighten, so, the supporting rigidity of anterior crossbeam 202 can be improved.
As seen from the above description, according to Figure 16～subframe for vehicle shown in Figure 180 (Rear secondary frame for vehicle), the anterior crossbeam 202 of Rear secondary frame for vehicle 53 has along the vertical continuously recessed recess 221 of vibrationproof with resilient sleeve 52, so, can improve the intensity of crossbeam (anterior crossbeam) 202 by the recess of recess 221.
In addition, by adopting Figure 16～bush attaching structure shown in Figure 180, on the plane that carriage board 236a, 236b installation contacts with the end face of the inner core 241 of resilient sleeve 240, in addition, edge by the further Folding holder frame plate 236a of portion, 236b, thereby even reflex part 235,235 this simple structures are set, also can further improve the rigidity of carriage board 236a, 236b by reflex part 235,235.For this reason, can further improve the installation strength and the supporting rigidity of the carriage 221 that resilient sleeve 240 is installed.Therefore, can by carriage 221 fully supporting act on the load of carriage board 236a, 236b from resilient sleeve 240, and this load can be delivered to anterior crossbeam 202 as framework by good efficiency.
In addition, because carriage board 236a, 236b and reflex part 235,235 separates certain space S 2, S2 faces mutually, so, can correspondingly improve the rigidity of the complex that constitutes by carriage board 236a, 236b and reflex part 235,235.Like this, can further improve the rigidity of carriage board 236a, 236b and reflex part 235,235.
In addition, constitute by the cross section that makes the anterior crossbeam (framework) 202 that constitutes by cylindrical member inwards recessedly, thereby form carriage board 236a, 236b at the medial surface of its recess 221, so, the anterior crossbeam 202 integrally formed carriages 221 that can constitute by cylindrical member by simple structure.For this reason, the carriage that does not need crossbeam 202 installations forwardly to constitute by other member.Because can reduce number of components, so, the lighting of the complex that anterior crossbeam 202 and carriage 221 constitute can be realized, and the cost of bush attaching structure can be reduced.In addition, owing to do not need crossbeam forwardly 202 to engage the carriage that constitutes by other member, so, can improve the accuracy of manufacture of the complex that constitutes by anterior crossbeam 202 and carriage 221.And, the load that acts on carriage board 236a, 236b from resilient sleeve 240 can be delivered to anterior crossbeam 202 by good efficiency.
In addition, owing to form folding reflex part 235,235 continuously from carriage board 236a, 236b at the anterior crossbeam 202 that constitutes by cylindrical member, so, can the integral body with anterior crossbeam 202 positively support the load that acts on carriage board 236a, 236b from resilient sleeve 240 by reflex part 235,235.Can improve the supporting rigidity of the carriage 221 that resilient sleeve 240 is supported expeditiously.
Figure 19 (a)～(c) is the distortion illustration of anterior crossbeam of the present invention, represents corresponding to above-mentioned Figure 17 (a), and the variation of bolt through hole 238 parts that are formed at carriage 221 is shown.
Variation shown in Figure 19 (a) has at the edge of the bolt through hole 238 that is opened in the place ahead side plate 232 towards the flange part 251 of the outstanding ring-type of foreign side.Variation shown in Figure 19 (b) has the flange part 252 of square ring-type of giving prominence to inwardly at the edge of the bolt through hole 238 that is opened in the place ahead side plate 232.Variation shown in Figure 19 (c) has the ring-shaped edge portion 253 thicker than thickness of slab at the edge of the bolt through hole 238 that is opened in the place ahead side plate 232.
The edge of the place ahead side plate 232 before and after being opened in like this, the bolt through hole 238 of carriage board 236a, 236b, by plunging processing etc. flange part 251,252 and ring-shaped edge portion 253 are set, thereby can improve the intensity in hole week, relax concentrating of stress.
Below, according to Figure 20 Rear secondary frame for vehicle 53 and rear suspension 260 structure on every side are described.About rear suspension 260,260 be identical structure, so, explanation left side and omit explanation only to the right side.
Figure 20 is the block diagram that rear suspension is housed on Rear secondary frame for vehicle of the present invention.The rear suspension 260 in left side is the rear wheel suspension apparatus that hangs trailing wheel at Rear secondary frame for vehicle 53, mainly is included in the upper arm 261 that lateral bracket 214 can be installed with swinging up and down, at suspension bracket installation portion 215 ... with the anterior underarm 263 that descends front rack 262 to install with swinging up and down, in the rear portion underarm (not shown) of descending tail-bracket 216 (with reference to Figure 13) to install with swinging up and down, be connected in the joint 264 of upper arm 261 and anterior posterior underarm 263, be installed on the posterior bumper 265 between joint 264 and the not shown back damping shell, the front portion in joint 264 is connected in down the slave arm 267 of front rack 262, and the shaft-like stabiliser 269 between the rear portion underarm about connecting.
Stabiliser 269 is installed on the stabiliser of Rear secondary frame for vehicle 53 with on the housing mounting portion 217 with carriage 271 by stabiliser.
Among the figure, symbol 272 is the trailing wheel axle drive shaft.Symbol 275,275 is for installing the vibrationproof resilient sleeve of back differential gear box 54 (with reference to Fig. 3).
In form of implementation of the present invention, the framework that is used to install resilient sleeve 100,240 is not limited to fore sub frame 42 or Rear secondary frame for vehicle 53, applicable to various frameworks, for example also can be vehicle frame 20.
In addition, the cylindrical member that constitutes framework is not limited to the tube of square-section such as square roughly, also can be for example tube of round section.
In addition, the material of framework and carriage, shape, size can be set arbitrarily.
In addition, the member that is installed on framework by resilient sleeve 100,240 with carriage is not limited to the component parts or the back differential gear box 54 of suspension, can be arbitrarily.
In addition, subframe for vehicle of the present invention is applicable to four-wheeled in form of implementation, but also applicable to three-wheel vehicle, applicable to general vehicle.
Though understand the present invention in detail with reference to specific form of implementation, understanding can not break away from the spirit and scope of the present invention and carries out numerous variations and correction with those skilled in the art know that.
The Japanese patent application (patent application 2004-102133) that the application filed an application based on the Japanese patent application (patent application 2004-102969) of filing an application on March 31st, 2004, on March 31st, 2004, its content here as a reference.
Subframe for vehicle of the present invention is suitable for four-wheeled.
In addition, bush attaching structure of the present invention is suitable for the component parts of the component parts of suspension or torque transfer is installed on the vehicles such as self-propelled vehicle of framework.
Claims (6)
1. subframe for vehicle has: the longeron of pair of right and left, and the longeron of this pair of right and left extends upward in the car body front and back, and the installation portion that has the car body installation portion and be used to install suspension arm; Barrel-contoured crossbeam, this barrel-contoured crossbeam extends upward at the car body right and left, is connected with the longeron of above-mentioned pair of right and left respectively, it is characterized in that, is provided with on above-mentioned crossbeam at the continuous recessed recess of length direction.
2. subframe for vehicle as claimed in claim 1 is characterized in that above-mentioned recess is formed at the below of main body of cross-beam, and recessed upward, embeds buffer component at this recess.
3. subframe for vehicle as claimed in claim 2, it is characterized in that, above-mentioned barrel-contoured crossbeam be by upper plate, the place ahead side plate, lower plate, and the cross section that forms of rear side plate be roughly osed top quadrangle member, above-mentioned recess is formed, its cross sectional shape on the cross-sectional plane of crossbeam is inboard recessed to the cross section, and this recess has: the reflex part that the front rack board parallel with above-mentioned the place ahead side plate, the tail-bracket board parallel with above-mentioned rear side plate and the past, tail-bracket board turn back.
4. resilient sleeve has inner core, surrounds the urceolus of this inner core and the elastic body that this inner core and urceolus are coupled together, this resilient sleeve is installed on the vehicle frame by carriage, the two ends of the above-mentioned inner core of above-mentioned carriage clamping, by bolt being passed this inner core, and above-mentioned resilient sleeve is installed on the vehicle frame, above-mentioned bush attaching structure is characterised in that
Above-mentioned carriage has: the carriage board, and it has the plane that contacts with the end face of above-mentioned inner core; Reflex part, it turns back from this carriage board.
5. bush attaching structure as claimed in claim 4 is characterized in that, above-mentioned carriage board and above-mentioned reflex part separate certain space and face mutually.
6. as claim 4 or 5 described bush attaching structures, it is characterized in that, above-mentioned vehicle frame constitutes with cylindrical member, the shape of cross section that makes this cylindrical member is the inboard recessed shape to the cross section, medial surface at this recess forms above-mentioned carriage board, in addition, above-mentioned reflex part forms on above-mentioned cylindrical member continuously.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004102133A JP4247902B2 (en) | 2004-03-31 | 2004-03-31 | Bush mounting structure |
| JP102133/2004 | 2004-03-31 | ||
| JP102969/2004 | 2004-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1842459A true CN1842459A (en) | 2006-10-04 |
| CN100460263C CN100460263C (en) | 2009-02-11 |
Family
ID=35179491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800010360A Expired - Fee Related CN100460263C (en) | 2004-03-31 | 2005-03-29 | Subframe for vehicle and bush attaching structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4247902B2 (en) |
| CN (1) | CN100460263C (en) |
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| CN103221293A (en) * | 2010-11-24 | 2013-07-24 | 株式会社利富高 | Cover member |
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| JPH0867269A (en) * | 1994-08-31 | 1996-03-12 | Suzuki Motor Corp | Suspension frame for vehicle |
| DE19920051B4 (en) * | 1999-05-03 | 2006-02-02 | Dr.Ing.H.C. F. Porsche Ag | Subframe for a front axle of a motor vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4247902B2 (en) | 2009-04-02 |
| CN100460263C (en) | 2009-02-11 |
| JP2005280651A (en) | 2005-10-13 |
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Granted publication date: 20090211 Termination date: 20160329 |