CN101134429A - Mounting structure for screw spring of suspension device - Google Patents
Mounting structure for screw spring of suspension device Download PDFInfo
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- CN101134429A CN101134429A CNA2007101386979A CN200710138697A CN101134429A CN 101134429 A CN101134429 A CN 101134429A CN A2007101386979 A CNA2007101386979 A CN A2007101386979A CN 200710138697 A CN200710138697 A CN 200710138697A CN 101134429 A CN101134429 A CN 101134429A
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Abstract
The invention provides a helical spring mounting structure of a suspension gear, the prop connection part relative to the upper spring seat of the right and the left helical springs are in bilateral symmetry using the center position of the car width as reference, thereby the supporting rigidity of the right and the left upper spring seats is equal. The invention can improve rideability of the vehicle.
Description
Technical field
The present invention relates to a kind of mounting structure for screw spring of suspension device for vehicle, particularly a kind of coil spring is installed on the mounting structure for screw spring of body shell bottom.
Background technology
In the past, in order to support vehicle body and to absorb road shocks, in the draft hitch of vehicle, be provided with the coil spring that extends along above-below direction.
For example, the open communique spy of Japanese Patent opens to disclose in 2000-335219 number (below be called patent documentation 1) and a kind ofly divides the mounting structure for screw spring that is arranged with coil spring (coil spring) and shock absorber (shock absorber) in torsion beam (torsion arm) formula draft hitch.
If coil spring and shock absorber branch are arranged, then coil spring need not to be arranged on the top of shock absorber, can guarantee bigger body tail baggage room space etc. thus, with the parts that improve vehicle efficient is set.
When coil spring and shock absorber branch are arranged, need between suspension link such as suspension trailing arm and vehicle body, coil spring to be set, load from ground-surface to absorb.Thus, when coil spring is set, can apply bigger load to the installation position of vehicle body, therefore, the higher body shell of general using rigidity is as the vehicle body installation position.
But, the position of body shell and helical spring position may can't reach in full accord because of the relation of vehicle part setting, need to be provided with in the side of body shell the bracket component (spring perch) of local bias this moment, and by this bracket component coil spring is installed on the body shell.
So, when the spring perch by local bias is installed on body shell with coil spring, the helical spring installing and locating portion (the coil spring end from spring end to set-up positions) of bearing suspension load is connected to spring perch, and cross over from overlook direction see with body shell superposed part (not offset part) and with body shell superposed part (biasing part) not.
But, owing to be subjected to the influence of body shell, the rigidity of spring perch is different with not offset part in the biasing part, therefore, the deformation state of spring perch can be connected to biasing part because of installing and locating portion is more or more to be connected to not offset part different, so exist helical spring characteristic that the danger of bigger variation takes place.
So, when helical spring characteristic changed along with the abutment portion of installing and locating portion and spring perch, the suspension performance that is set at the identical draft hitch of left and right sides characteristic was destroyed, thereby the problem that rideability such as vehicle handling and stability worsens occurred.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of mounting structure for screw spring that improves the draft hitch of road holding.
The mounting structure for screw spring of draft hitch of the present invention comprises, is arranged at the bottom of a pair of body shell of the left and right sides that is positioned at the overall width direction respectively, from the pair of right and left spring perch of this each body shell at least one side extension of above-mentioned overall width direction; Be installed in respectively on this a pair of spring perch, along the pair of right and left coil spring of above-below direction extension; Above-mentioned each spring perch, with the middle position of overall width direction is that benchmark roughly is and is symmetrical set, and from overlook direction see have respectively with the body shell superposed part and with body shell superposed part not, the top installing and locating portion from spring end to set-up positions of above-mentioned helical spring upper end is connected to above-mentioned spring perch, and cross over above-mentioned and body shell superposed part and with body shell superposed part not, the abutment portion of above-mentioned each helical spring top installing and locating portion and each spring perch is that benchmark roughly is left-right symmetric with the middle position of above-mentioned vehicle condition direction.
Adopt the mounting structure for screw spring of above-mentioned draft hitch, each top installing and locating is that benchmark roughly is left-right symmetric with respect to the abutment portion of each spring perch with the middle position of overall width direction, thus top installing and locating portion approximate equality be connected in the spring perch with body shell superposed part (not offset part) and with body shell superposed part (biasing part) not.
Therefore, by the roughly the same spring perch support helix spring-load of left and right sides rigidity of support, can make the helical spring elastic behavior left and right sides roughly the same.
And, if it is roughly symmetrical about the abutment portion of each top installing and locating portion, then can set the scope (butt angle) of each top installing and locating portion abutment portion in a circumferential direction arbitrarily, for example the aperture position (position, space between spring end and the rising portions) that roughly is the installing and locating portion of C shape can be set in optional positions such as vehicle front, the outside, inboard and rear view of vehicle.
In addition, as above-mentioned draft hitch so long as at the helical spring device of body shell lower support, be not particularly limited, for example, also can adopt draft hitchs such as rigidity shaft type suspension, torsion beam type suspension, half trailing arm type suspension, wishbone suspension, many link-types suspension.
In the mounting structure for screw spring of above-mentioned draft hitch, comparatively it is desirable to, the scope of the abutment portion of above-mentioned top installing and locating portion and spring perch is a benchmark left and right sides approximate equality with above-mentioned helical spring vehicle fore-and-aft direction radial line.
Adopt the mounting structure for screw spring of above-mentioned draft hitch, because the scope of the abutment portion of top installing and locating portion and spring perch, with helical spring vehicle fore-and-aft direction radially is benchmark left and right sides approximate equality, so put on the coil spring load of 1 spring perch, impartial about being with respect to helical spring vehicle fore-and-aft direction radial line.
And left and right sides coil spring is that benchmark roughly is and is symmetrical set with the middle position of overall width direction, so the middle position that the abutment portion of each top installing and locating portion can be arranged to easily with the overall width direction is that benchmark roughly is left-right symmetric.Therefore, can more effectively suppress rigidity of support generation difference between the coil spring of the left and right sides, the helical spring characteristic in the left and right sides is reached unanimity.
In the mounting structure for screw spring of above-mentioned draft hitch, comparatively it is desirable to, above-mentioned each helical spring coiling direction is identical, be respectively arranged with the spring perch rubber that is used to relax from the impact of this top installing and locating portion between above-mentioned each spring perch and the above-mentioned top installing and locating portion, this spring perch rubber and above-mentioned each helical spring spring end card end, to limit above-mentioned abutment portion.
Adopt above-mentioned draft hitch mounting structure for screw spring, by being made as the helical spring coiling direction in the left and right sides identical, not only can realize the helical spring universalization in this left and right sides, and the installation site of above-mentioned helical spring spring end is also identical, therefore, can realize being limited to the universalization of the spring perch rubber of this spring end.
In the mounting structure for screw spring of above-mentioned draft hitch, comparatively it is desirable to, above-mentioned coil spring, the bottom installing and locating portion from spring end to set-up positions of its lower end is connected to the butt object position of appointment, and the scope of this abutment portion is a benchmark left and right sides approximate equality with above-mentioned helical spring vehicle fore-and-aft direction radial line.
Adopt above-mentioned draft hitch mounting structure for screw spring, top installing and locating portion and bottom installing and locating portion, be benchmark left and right sides approximate equality all with helical spring vehicle fore-and-aft direction radial line, therefore, put on the load at above-mentioned spring perch and butt object position from coil spring, impartial about this helical spring upper and lower is with respect to helical spring vehicle fore-and-aft direction radial line respectively.Therefore, can make the load that puts on spring perch and butt object position apply state and be tending towards impartial.Thus, can further suppress rigidity of support generation difference between the coil spring of the left and right sides, thereby the helical spring characteristic in the left and right sides is reached unanimity.
In the mounting structure for screw spring of above-mentioned draft hitch, comparatively it is desirable to, above-mentioned top installing and locating portion and spring perch and the abutment portion body shell superposed part, greater than this top installing and locating portion and spring perch with the body shell abutment portion of superposed part not.
Adopt the mounting structure for screw spring of above-mentioned draft hitch, can utilize the higher part of rigidity of spring perch to come the support helix spring in a big way.Therefore can improve helical spring rigidity of support.
In addition, by the abutment portion of the higher part of the rigidity that increases coil spring and spring perch, when bearing bigger load, can reduce the distortion of spring perch, further to stablize helical spring characteristic.Thus, can improve the rigidity of support of draft hitch, further to make the helical spring characteristic left and right sides, left and right sides approximate equality.
In the mounting structure for screw spring of above-mentioned draft hitch, comparatively it is desirable to, above-mentioned each body shell is inclined to set respectively with respect to the vehicle fore-and-aft direction, above-mentioned each spring perch comprises along covering the lining cap of body shell lower face with the overall width direction of above-mentioned fore-and-aft direction quadrature, and the extension that extends to the outside of overall width direction from this lining cap.
Adopt the mounting structure for screw spring of above-mentioned draft hitch, the structure that is parallel to the setting of vehicle fore-and-aft direction with body shell is different, can increase the area (area that overlaps with spring perch) of above-mentioned lining cap, thereby make that helical spring top installing and locating portion is connected to spring perch more with the body shell superposed part, therefore can come the support helix spring by the higher part of the rigidity of spring perch, thereby can improve the rigidity of support of draft hitch, so that the helical spring characteristic in the left and right sides is impartial more.
In the mounting structure for screw spring of above-mentioned draft hitch, comparatively it is desirable to, also comprise, can be with respect to shake the swing part that fulcrum shake of said frame main body around horizontal direction; Be positioned at this swing part above-mentioned shake the rear of fulcrum and respectively with the pair of right and left abutting part of the bottom installing and locating portion butt from spring end to set-up positions of above-mentioned each coil spring lower end; Upright respectively be located at above-mentioned abutting part and can insert the inboard of above-mentioned bottom installing and locating portion and with the upright portion that establishes of the medial surface butt of this bottom installing and locating portion; The spring end face of above-mentioned each bottom installing and locating portion points to rear view of vehicle.
Adopt the mounting structure for screw spring of above-mentioned draft hitch, is that fulcrum is when shaking upward when bearing swing part that road surface load makes draft hitch to shake fulcrum, even coil spring produces the distortion of similar " folded part of accordion " between spring perch and abutting part, it is the front side produces contraction to a greater degree than rear side shrinkage distortion, and to rear view of vehicle escape (moving), but because the part of helical spring bottom installing and locating portion is stuck in the upright front side of establishing portion of abutting part effectively, be but that bottom installing and locating portion still is stuck in to left and right sides approximate equality this upright establishing in the portion etc., therefore can suppress coil spring rearward produces escape.Thus, can effectively installing and locating portion be limited to abutting part, stably to realize the function of draft hitch.
Description of drawings
Fig. 1 is the overall perspective view that adopts the back suspension device of the 1st embodiment.
Fig. 2 is the whole birds-eye view of expression back suspension device with respect to the installing condition of vehicle body.
Fig. 3 is the unitary side view of expression back suspension device with respect to the installing condition of vehicle body.
Fig. 4 is the block diagram of mounting portion on coil spring top of the back suspension device in expression left side.
Fig. 5 is the upward view from the mounting portion on the coil spring top in observation left side, below.
Fig. 6 is the upward view of the mounting portion on expression coil spring top, the left and right sides, medelling ground.
Fig. 7 is the birds-eye view from the mounting portion of the coil spring bottom in observation left side, top.
Fig. 8 is the birds-eye view of the mounting portion of expression coil spring bottom, the left and right sides, medelling ground.
Fig. 9 is the upward view of the mounting portion on coil spring top, the left and right sides among other embodiment of medelling ground expression, (a) expression the 2nd embodiment, (b) expression the 3rd embodiment, (c) expression the 4th embodiment.
The specific embodiment
Below, in conjunction with the accompanying drawings embodiments of the invention are specifically described.
Fig. 1 is the overall perspective view that adopts the back suspension device 1 of the 1st embodiment.
The back suspension device 1 of present embodiment is a torsional beam type suspension device.
Particularly, draft hitch 1 comprises, along the pair of right and left suspension trailing arm (swing part) 2,2 of vehicle fore-and-aft direction extension; Extend and connect the bridge (axlebeam) 3 of suspension trailing arm 2,2 at the midway location of suspension trailing arm 2,2 along the overall width direction; Be arranged on the front portion of suspension trailing arm 2,2, and a pair of rocker arm bush (arm bush) 4,4 of axle bearing about vehicle body; Be installed in the pair of right and left coil spring 5,5 of the posterior medial of suspension trailing arm 2,2; Be installed in the pair of right and left shock absorber (shock absorber) 6,6 of the rear end of suspension trailing arm 2,2; Be installed in the pair of right and left wheel support component 7,7 of the rear outside of suspension trailing arm 2,2.
Torsional beam type suspension device, bear when impacting at wheel 8,8 (with reference to figure 2) from the ground-surface above-below direction, suspension trailing arm 2,2 fluctuates for shaking fulcrum with rocker arm bush 4,4, makes wheel 8,8 along above-below direction move back and forth (stroke) thus.When the vibration-direction of this wheel 8,8 makes the direction of left and right wheels opposite because of turning of vehicle etc., the bridge 3 that extends along the overall width direction twists, reverse by this and suspension trailing arm 2,2 also to be produced reverse, make wheel 8,8 produce how much (geometry) thus and change.
In the structural element of this draft hitch 1, pair of right and left coil spring 5,5 extends along above-below direction, dextrorotation (the spiralling spiral wound direction of anticlockwise direction) simultaneously.Like this, cause, realize the universalization of left and right sides coil spring 5,5, thereby can reduce the productive costs of back suspension device 1 by the coiling direction that makes left and right sides coil spring 5,5.
The below of coil spring 5,5 is provided with the lower springs seat 9,9 of accepting coil spring 5,5.Above-mentioned lower springs seat 9,9 is arranged on the rear-lateral corner portion between suspension trailing arm 2,2 and the bridge 3,3, and crosses over both.In addition, lower springs seat 9,9 can be effectively be passed to coil spring 5,5 with the above-below direction crank motion of suspension trailing arm 2,2.
The top of coil spring 5,5 be provided be used to slow down and car body component between the spring perch rubber 10,10 of impact.This spring perch rubber 10,10 is in the form of a ring rubber material parts roughly, and as described later, it also has the function that limits coil spring 5,5 installation sites.
Fig. 2 is the whole birds-eye view of expression back suspension device 1 with respect to the installing condition of vehicle body.Fig. 3 is the unitary side view of expression back suspension device 1 with respect to the installing condition of vehicle body.Structural element shown in dotted lines in Figure 2 is a car body component.
Shown in above-mentioned each figure, back suspension device 1 is installed on the pair of right and left floor side member 11,11 that body bottom section extends along the vehicle fore-and-aft direction.
As shown in Figure 2, floor side member 11,11 from overlooking direction, is along with extending to vehicle front to being obliquely installed that the outside of overall width direction is expanded.This is for floor side member 11,11 front ends are connected in down longeron (not shown) rear end, thus by floor side member 11,11 being connected in down the anti-impact property that knocks into the back that longeron can improve floor side member 11,11.Because this floor side member 11,11 is inclined to set, lateral wall 11a, the 11a of floor side member 11,11 is along with extending to vehicle front and tilting to the overall width direction outside gradually.
In addition, as shown in Figure 3, floor side member 11 from the side-looking direction, is the part that is positioned at vehicle front one side and is in leaning forward and being obliquely installed of below, and the Support Position that is positioned at the coil spring 5 of rear view of vehicle one side thus can be positioned at the top.Therefore, can on above-below direction, guarantee the space that is provided with of coil spring 5, to guarantee the crank motion length of coil spring 5 fully.
In addition, this floor side member 11 is provided with the upper springs seat 12 that is used to support above-mentioned coil spring 5.
As shown in Figure 2, support facial 12a, by laterally long and roughly be hexagonal flat board and constitute, the offset part that is positioned at the outside is divided through chamfered (chamfer).This central part that supports facial 12a is provided with circular opening shaft hub (boss) 12c (detailed structure is with reference to figure 5).
In addition, as shown in Figure 3, the 12b of foot, 12b comprise the longitudinal wall part 12d, the 12d that erect from the both sides of supporting facial 12a; Be connected in the 12e of flange connector portion, the 12e of the lateral wall 11a of floor side member 11.
And, on the facial 12a of the support of upper spring seat 12, the biasing part 12a1 (the hachure zone among Fig. 2) that extends laterally is set, as shown in Figure 2, this is the relation that is provided with for according to vehicle part, makes the coil spring 5,5 of back suspension device 1 be arranged on the overall width direction outside with respect to floor side member 11,11.
All loads that are applied to coil spring 5 are passed to floor side member 11 via upper springs seat 12.
But because this upper springs seat 12 is provided with biasing part 12a1, so (see and the floor side member superposed part from overlooking direction: the lining cap), both there are differences with respect to the rigidity of support of coil spring 5 the biasing part 12a1 of upper springs seat 12 (seeing and floor side member 11 superposed part not from overlooking direction) with not offset part 12a2.
That is, the not offset part 12a2 that overlaps with floor side member 11 is subjected to the effect of the higher floor side member of rigidity 11, so rigidity of support is higher, in contrast, the biasing part 12a1 that does not overlap with floor side member 11, owing to only be supported in floor side member 11, so rigidity of support is relatively low by the 12b of foot, 12b.
Therefore, as under the situation of the position of the biasing part 12a1 that does not consider upper springs seat 12 and not offset part 12a2 and coil spring 5 relation, coil spring 5 being installed, can be because the load that coil spring 5 is produced makes upper springs seat 12 produce distortion easily, perhaps do not deform, make the characteristic of left and right sides coil spring 5,5 difference occur thus, thereby make the suspension performance between the left and right wheels become unstable.
For addressing this problem, can consider to increase the thickness of upper springs seat 12, with raising upper springs seat 12 self rigidity, but adopt this structure, then be difficult to realize the lightweight of vehicle body, and can cause the deterioration of specific consumption of fuel.
To this, in the present embodiment, left and right sides coil spring 5,5 roughly is with respect to the abutment portion of upper springs seat 12,12 and is symmetrical arranged, and makes the rigidity of support of right and left upper spring perch 12,12 be tending towards impartial thus.
Below, by Fig. 4～Fig. 6, its concrete structure is described.Fig. 4 is the block diagram of mounting portion on coil spring 5 tops of the back suspension device 1 in expression left side.Fig. 5 is the upward view from the mounting portion on coil spring 5 tops in observation left side, below.Fig. 6 is the upward view of the mounting portion on expression coil spring 5,5 tops, the left and right sides, medelling ground.
As shown in Figure 5, above-mentioned spring perch rubber 10 comprises the main part 10a of ring-type; The annular flange portion 10b that extends downwards at the central part of main part 10a; Two 10c of hooking sheet portion, 10c and 1 10d of banking stop portion of extending laterally from annular flange portion 10b.In addition, as shown in Figure 4, be provided with the 10e of locating dowel pin portion of projection upward at the upper surface of main part 10a.
By spring end 5a and the 10d of the banking stop portion butt that makes coil spring 5, the 5A of top installing and locating portion (point-like shaded area) of the rising portions 5b that erects from this spring end 5a to coiling is forwards ended with two 10c of hooking sheet portion, 10c card, coil spring 5 can be installed on the spring perch rubber 10.In addition, this spring perch rubber 10, by being installed on the upper springs seat 12 among the knock hole 12f (with reference to figure 4) that it is limited the pin 10e of portion insertion upper springs seat 12, can limit the top 5A of installing and locating portion of coil spring 5 and the abutment portion of upper springs seat 12 thus.Therefore that is, utilize spring perch rubber 10 that coil spring 5 is installed, spring end 5a can be limited to a fixed position all the time, the abutment portion of the 5A of top installing and locating portion of coil spring 5 can be limited to a fixed position all the time.
In the present embodiment, spring end 5a is arranged on the oblique outside (side of taking back) of rear view of vehicle, the scope of the abutment portion of 5A of top installing and locating portion and upper spring seat 12 thus, the radial line of vehicle fore-and-aft direction that can coil spring 5 is respectively to coil equably about benchmark about 0.4 circle (to add up to (about 288 °) about 0.8 circle), perhaps makes the front portion of upper springs seat 12 be positioned at the center of abutment portion.
By as above setting the abutment portion of the 5A of top installing and locating portion, and the upper springs seat 12 in left side, the lateral wall 11a that follows floor side member 11 is along with extending and (left side) inclination gradually laterally to vehicle front, the butt area of its not offset part 12a2 and coil spring S can improve the rigidity of support of coil spring 5 thus greater than the butt area of biasing part 12a1 and coil spring 5.
As shown in Figure 6, the abutment portion of the 5A of top installing and locating portion (shaded area) of left and right sides coil spring 5,5 roughly is and is symmetrical set.And, the scope of the abutment portion of the 5A of top installing and locating portion, the 5A of left and right sides coil spring 5,5, the radial line that is set to the vehicle fore-and-aft direction of coil spring 5,5 is a benchmark, about respectively coil about 0.4 circle equably, add up to about 0.8 circle.
As mentioned above because left and right sides coil spring 5,5 constitutes by the coil spring of dextrorotation, therefore, the position (left side) of the position of spring end 5a (right side) and rising portions 5b about each coil spring 5,5 identical.
Herein, lateral wall 11a, the 11a of floor side member, left and right symmetrically tilts laterally along with extending roughly to vehicle front, thus the biasing part 12a1 of upper spring seat 12 and not offset part 12a2 left-right symmetric roughly.
Therefore, be connected to the top installing and locating portion 5A left and right sides approximate equality biasing part 12a1 and the not offset part 12a2 of upper spring seat 12.
Thus, the rigidity of support left and right sides of upper spring seat 12,12 is roughly the same, and when the load that bears from coil spring 5,5, the left and right sides deforms roughly the samely.
So, adopt present embodiment, the difference of coil spring characteristic can be suppressed to produce between the left and right sides coil spring 5,5, thereby the suspension performance between the left and right wheels can be stablized.
Below, by Fig. 7, Fig. 8, the structure of the mounting portion of coil spring 5 bottoms is described.Fig. 7 is the birds-eye view from the mounting portion of coil spring 5 bottoms in observation left side, top.Fig. 8 is the birds-eye view of the mounting portion of expression coil spring 5 bottoms, the left and right sides, medelling ground.
As shown in Figure 7, the bottom of coil spring 5 is installed on lower springs seat 9 by the spring seat ring 13 of synthetic resin material, can prevent that thus the bottom of coil spring 5 from sending allophone.
Spring seat ring 13 is by the circular cap shape component set-up of the set engaging shaft hub 9a of the central part that embeds lower springs seat 9.By this spring seat ring 13, can prevent lower springs seat 9 and the direct butt of the 5B of installing and locating portion (scope from spring end 5c to rising portions 5d, point-like shaded area below are called bottom installing and locating portion) of coil spring 5 lower ends.
The 5B of bottom installing and locating portion is different with the top installing and locating 5A of portion, does not clearly limit the position of spring end 5c, but in order to make spring end 5c be positioned at the rear view of vehicle outside (side of taking back) partially, the central portion 5e that limits the bottom 5B of installing and locating portion is positioned at vehicle front.
Thus, the part of the bottom installing and locating 5B of portion is easy to be stuck in the engaging shaft hub 9a front side of lower springs seat 9, thereby can prevent that at suspension trailing arm 2 coil spring 5 from rearward escaping when above-below direction shakes.
The abutment portion of bottom 5B of installing and locating portion and lower springs seat 9, be stuck on the engaging shaft hub 9a with considering left and right sides approximate equality, the 5A of portion is identical with the top installing and locating, the vehicle fore-and-aft direction radial line that is set at coil spring 5 is respectively to coil about 0.4 circle equably about benchmark, adds up to about 0.8 circle.
This abutment portion is limited according to the number of turn (for example 5 circles, 6 circles, 6.5 circles etc.) of coil spring 5 and the relation of above-mentioned spring perch rubber 10.
As shown in Figure 8, the abutment portion of the bottom installing and locating 5B of portion is a benchmark with the middle position of overall width direction, about symmetry roughly.In addition, as mentioned above, the scope of the abutment portion of each 5B of bottom installing and locating portion is respectively to coil 0.4 circle about benchmark equably with the vehicle fore-and-aft direction radial line of each coil spring 5, adds up to about 0.8 circle.
Thus, can prevent that any one coil spring 5,5 of the left and right sides from rearward escaping.In addition, be passed to lower springs seat 9,9 to the load left and right sides approximate equality of coil spring 5,5, therefore, it is impartial that the suspension performance between the left and right wheels also can keep.
Below, the action effect of the present embodiment that adopts said structure is elaborated.
Draft hitch mounting structure for screw spring for present embodiment, upper springs seat 12, comprise from overlooking the biasing part 12a1 that direction is seen the not offset part 12a2 that overlaps with floor side member 11 and do not overlapped, not offset part 12a2 that the 5A of top installing and locating portion of coil spring 5 crosses over this upper springs seat 12 and biasing part 12a1, and with both butts.The abutment portion of the 5A of top installing and locating portion of left and right sides coil spring 5,5, about roughly the symmetry.
Thus, the 5A of top installing and locating portion of left and right sides coil spring 5,5 is respectively with the not offset part 12a2 of roughly the same ratio and upper springs seat 12 and the part 12a1 butt of setovering.
Therefore, left and right sides upper springs seat 12, the 12 support helix springs 5,5 by having identical rigidity of support can make the characteristic of left and right sides coil spring 5,5 roughly the same.
So, by draft hitch 1, can suppress the difference of the rigidity of support of coil spring 5,5, improve the rideability of vehicle thus.
In addition, among this embodiment, the scope of the abutment portion of top 5A of installing and locating portion and upper springs seat 12, the vehicle fore-and-aft direction radial line that is set at above-mentioned coil spring 5 is a benchmark left and right sides approximate equality, so put on the load of the coil spring 5 of 1 upper springs seat 12, impartial about being with respect to the vehicle fore-and-aft direction radial line of coil spring 5.
And, left and right sides coil spring 5,5 is that benchmark roughly is and is symmetrical set with the middle position of overall width direction, so the 5A of top installing and locating portion of left and right sides coil spring 5,5, the abutment portion of 5A, the middle position that can be arranged to easily with the overall width direction is that benchmark roughly is left-right symmetric.Therefore, the rigidity of support that can more effectively suppress between the left and right sides coil spring 5,5 produces difference, and the characteristic of left and right sides coil spring 5,5 is reached unanimity.
In addition, among this embodiment, the coiling direction of left and right sides coil spring 5,5 is identical, and be provided with the spring perch rubber 10 that is used to relax from the impact of the 5A of this top installing and locating portion between spring perch 12 and the top installing and locating 5A of portion, end by the card of this spring perch rubber 10, to limit above-mentioned abutment portion with the spring end 5a of each coil spring 5,5.
Thus, be made as identical by coiling direction with left and right sides coil spring 5,5, not only can realize the universalization of this left and right sides coil spring 5,5, and the installation site of the spring end 5a of above-mentioned coil spring 5,5 is also identical, therefore, can realize being limited to the universalization of the spring perch rubber 10 of this spring end 5a.
In addition, in the present embodiment, the top 5A of installing and locating portion of coil spring 5 and the bottom installing and locating 5B of portion are connected to each spring perch 12,9, and the scope of this abutment portion is a benchmark left and right sides approximate equality with the vehicle fore-and-aft direction radial line of above-mentioned coil spring 5,5.
Adopt this embodiment, the 5A of installing and locating portion up and down, the abutment portion of 5B, vehicle fore-and-aft direction radial line with coil spring 5 is a benchmark left and right sides approximate equality respectively, therefore put on the load of upper springs seat 9 and lower springs seat 12 from coil spring 5, impartial about the top and the bottom of this coil spring 5 are with respect to the vehicle fore-and-aft direction radial line of coil spring 5 respectively.
Therefore, can further suppress rigidity of support generation difference between the left and right sides coil spring 5,5, thereby the characteristic of left and right sides coil spring 5,5 is reached unanimity.
In addition, in the present embodiment, the abutment portion of the not offset part 12a2 of top installing and locating 5A of portion and upper springs seat 12 greater than with the abutment portion of the biasing part 12a1 of upper springs seat 12.
Particularly, floor side member 11 is inclined to set respectively with respect to the vehicle fore-and-aft direction, and spring perch 12 comprises along covering the not offset part 12a2 of floor side member 11 lower faces with the overall width direction of above-mentioned fore-and-aft direction quadrature, and the extension 12a1 that extends to the outside of overall width direction from this not offset part 12a2.
Adopt this structure, can utilize the higher part of rigidity of spring perch 12 to come support helix spring 5 in a big way.Therefore can improve the rigidity of support of coil spring 5.
In addition,, when bearing bigger load, can reduce the distortion of spring perch 12, further to stablize the characteristic of coil spring 5 by the abutment portion of the higher part of the rigidity that increases coil spring 5 and spring perch 12.Thus, can improve the rigidity of support of draft hitch 1, further to make the characteristic left and right sides approximate equality of left and right sides coil spring 5.
In addition, present embodiment comprises, can be with respect to shake the suspension trailing arm 2 that fulcrum shake of floor side member 11 around horizontal direction; Be positioned at the rear of shaking fulcrum of this suspension trailing arm 2 and respectively with the 5B of bottom installing and locating portion of each coil spring 5,5, the pair of right and left lower springs seat 9,9 of 5B butt; Upright respectively be located at above-mentioned lower springs seat 9,9 and can with the medial surface butt of the bottom installing and locating 5B of portion, 5B engage shaft hub (the upright portion that establishes) 9a, 9a; The spring end face of each 5B of bottom installing and locating portion, 5B points to rear view of vehicle.
Adopt said structure, to make suspension trailing arm 2 be that fulcrum is when shaking upward to shake fulcrum when bearing road surface load, even coil spring 5,5, between lower springs seat 9,9 and spring perch 12,12, produce the distortion of similar " folded part of accordion ", it is the front side produces contraction to a greater degree than rear side shrinkage distortion, and escape to rear view of vehicle, but because the part of the 5B of bottom installing and locating portion is stuck in the front side of the engaging shaft hub 9a of lower springs seat 9 effectively, therefore can suppress coil spring 5 rearward produces escape.
Therefore, can effectively the installing and locating 5B of portion in bottom be limited to lower springs seat 9, stably to realize the function of draft hitch 1.
In addition, be that prerequisite describes with the torsional beam type suspension device in the foregoing description, but when only being conceived to the effect of the 5A of top installing and locating portion, the form of draft hitch is not particularly limited, for example, also can be forms such as rigidity shaft type suspension, half trailing arm type suspension, wishbone suspension, many link-types suspension.
Below, by Fig. 9 other embodiment are described.Fig. 9 is the upward view of the mounting portion on expression of medelling ground and coil spring 5,5 tops, the cooresponding left and right sides of Fig. 6, (a) expression the 2nd embodiment, (b) expression the 3rd embodiment, (c) expression the 4th embodiment.Structural element for identical is designated as same-sign, and omits its explanation.
Embodiment as shown in Figure 9 is the embodiment of the back formation of the circumferential locations of the abutment portion of the 15A of top installing and locating portion, 25A, 35A (butt angle) for a change all.
The 2nd embodiment (a) carries out to directed outside butt with the aperture position S (position, space between spring end 5a and the rising portions 5b) of the 15A of top installing and locating portion that roughly is the C shape, the 3rd embodiment (b) is with aperture position S sensing carrying out the medially butt of the top installing and locating 25A of portion, and the 4th embodiment (c) carries out butt in ground, the outside partially with the aperture position S directed forward of the top installing and locating 35A of portion.
Shown in the 2nd embodiment, during the aperture position S directed outside of the top installing and locating 15A of portion, compare with the 1st embodiment, can make the 15A of top installing and locating portion be connected to the not offset part 12a2 of upper spring seat 12 more.
Therefore, compare, can further improve the rigidity of support of coil spring 5 when adopting the 2nd embodiment with the 1st embodiment.Thereby, can further improve the rigidity of draft hitch.
Shown in the 3rd embodiment, when the aperture position S of the top installing and locating 25A of portion points to the inboard, compare with the 1st embodiment, can make the 25A of top installing and locating portion be connected to the biasing part 12a1 of upper spring seat 12 more.
Therefore, can utilize the distortion of upper springs seat 12 when adopting the 3rd embodiment energetically, upper springs seat 12 is used as an elastomeric part.So, can increase the adjusting range of the characteristic of draft hitch 1.
Shown in the 4th embodiment, in the time of outside the aperture position S directed forward of the top installing and locating 35A of portion is inclined to one side, compare with the 1st embodiment, aperture position S is partial to the place ahead.So, during aperture position S deflection the place ahead, do not act on the front portion of upper springs seat 12 from the load of coil spring 5, so can reduce the rigidity of support of upper springs seat 12 front portions.Therefore, when adopting the 4th embodiment, can simplify the mounting structure of upper springs seat 12.
For above each embodiment, other action effects are all identical with the 1st embodiment.
In addition, the present invention is not limited to the foregoing description, and it comprises the embodiment of the mounting structure for screw spring that is applicable to all draft hitchs.
Claims (7)
1. the mounting structure for screw spring of a draft hitch is characterized in that:
Comprise,
Be arranged at the bottom of a pair of body shell of the left and right sides that is positioned at the overall width direction respectively, from the pair of right and left spring perch of this each body shell at least one side extension of above-mentioned overall width direction;
Be installed in respectively on the above-mentioned a pair of spring perch, along the pair of right and left coil spring of above-below direction extension;
Above-mentioned each spring perch is a benchmark with the middle position of overall width direction, roughly be to be symmetrical set, and from overlook direction see have respectively with the body shell superposed part and with body shell superposed part not,
Above-mentioned coil spring, the top installing and locating portion from spring end to set-up positions of its upper end is connected to above-mentioned spring perch, and cross over above-mentioned and body shell superposed part and with body shell superposed part not,
The abutment portion of above-mentioned each helical spring top installing and locating portion and each spring perch is that benchmark roughly is left-right symmetric with the middle position of above-mentioned overall width direction.
2. the mounting structure for screw spring of draft hitch according to claim 1 is characterized in that:
The scope of the abutment portion of above-mentioned top installing and locating portion and spring perch is a benchmark left and right sides approximate equality with above-mentioned helical spring vehicle fore-and-aft direction radial line.
3. the mounting structure for screw spring of draft hitch according to claim 2 is characterized in that:
Above-mentioned each helical spring coiling direction is identical,
Between above-mentioned each spring perch and above-mentioned each top installing and locating portion, be respectively arranged with the spring perch rubber that is used to relax from the impact of this top installing and locating portion, this spring perch rubber and above-mentioned each helical spring spring end card end, to limit above-mentioned abutment portion.
4. the mounting structure for screw spring of draft hitch according to claim 2 is characterized in that:
Above-mentioned coil spring, the bottom installing and locating portion from spring end to set-up positions of its lower end is connected to the butt object position of appointment, and the scope of this abutment portion is a benchmark left and right sides approximate equality with above-mentioned helical spring vehicle fore-and-aft direction radial line.
5. according to the mounting structure for screw spring of each described draft hitch in the claim 1～4, it is characterized in that:
Above-mentioned top installing and locating portion and spring perch and the abutment portion body shell superposed part, greater than this top installing and locating portion and spring perch with the body shell abutment portion of superposed part not.
6. according to the mounting structure for screw spring of each described draft hitch in the claim 1～4, it is characterized in that:
Above-mentioned each body shell is inclined to set respectively with respect to the vehicle fore-and-aft direction,
Above-mentioned each spring perch comprises along covering the lining cap of body shell lower face with the overall width direction of above-mentioned fore-and-aft direction quadrature, and the extension that extends to the outside of overall width direction from this lining cap.
7. according to the mounting structure for screw spring of each described draft hitch in the claim 1～4, it is characterized in that:
Also comprise,
Can be with respect to shake the swing part that fulcrum shake of said frame main body around horizontal direction;
Be positioned at the rear of shaking fulcrum of above-mentioned swing part and respectively with the pair of right and left abutting part of the bottom installing and locating portion butt from spring end to set-up positions of above-mentioned each coil spring lower end;
Upright respectively be located at above-mentioned abutting part and can insert the inboard of above-mentioned bottom installing and locating portion and with the upright portion that establishes of the medial surface butt of this bottom installing and locating portion;
The spring end face of above-mentioned each bottom installing and locating portion points to rear view of vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-233512 | 2006-08-30 | ||
| JP2006233512A JP4862561B2 (en) | 2006-08-30 | 2006-08-30 | Coil spring mounting structure of suspension system |
| JP2006233512 | 2006-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101134429A true CN101134429A (en) | 2008-03-05 |
| CN101134429B CN101134429B (en) | 2011-04-13 |
Family
ID=39158823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101386979A Expired - Fee Related CN101134429B (en) | 2006-08-30 | 2007-08-02 | Mounting structure for screw spring of suspension device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4862561B2 (en) |
| CN (1) | CN101134429B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660825A (en) * | 2013-12-11 | 2014-03-26 | 重庆长安汽车股份有限公司 | Multipurpose spiral spring installation base |
| CN108909392A (en) * | 2018-09-28 | 2018-11-30 | 重庆长安汽车股份有限公司 | Spring fitting device is hung after a kind of vehicle |
| CN110255436A (en) * | 2019-05-29 | 2019-09-20 | 江铃控股有限公司 | Rear secondary frame for vehicle helical spring Lifting Equipment |
| CN114248591A (en) * | 2020-09-25 | 2022-03-29 | 丰田自动车株式会社 | Suspension and coil spring of suspension |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5981958B2 (en) * | 2014-05-28 | 2016-08-31 | 三菱製鋼株式会社 | Suspension coil spring and strut suspension system |
| US10583880B2 (en) | 2017-11-02 | 2020-03-10 | Toyota Motor Engineering & Manufacturing North America, Inc. | Skate truck assemblies and associated methods for rear suspension spring compression |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5022180A (en) * | 1973-06-30 | 1975-03-10 | ||
| JPS6340211A (en) * | 1986-08-05 | 1988-02-20 | 株式会社クラレ | Conducting high polymer material and manufacture thereof |
| CN2087142U (en) * | 1991-04-01 | 1991-10-23 | 崔永军 | Float type helical vibration damper |
| JP3864473B2 (en) * | 1996-12-10 | 2006-12-27 | マツダ株式会社 | Cross member structure of vehicle |
| JP3741301B2 (en) * | 1998-01-30 | 2006-02-01 | スズキ株式会社 | Lateral rod mounting structure |
| JP3716610B2 (en) * | 1998-03-30 | 2005-11-16 | マツダ株式会社 | Car rear wheel suspension system |
| JP4138074B2 (en) * | 1998-05-11 | 2008-08-20 | 本田技研工業株式会社 | Vehicle body structure |
| JP3656447B2 (en) * | 1999-03-09 | 2005-06-08 | 三菱ふそうトラック・バス株式会社 | Air suspension device |
| CN2492411Y (en) * | 2001-06-22 | 2002-05-22 | 柳州五菱汽车有限责任公司 | Screw linkage oscillating-arm rear suspension |
| CN2742229Y (en) * | 2004-09-24 | 2005-11-23 | 全东鹤 | Automobile buffer shock-proof device |
-
2006
- 2006-08-30 JP JP2006233512A patent/JP4862561B2/en not_active Expired - Fee Related
-
2007
- 2007-08-02 CN CN2007101386979A patent/CN101134429B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660825A (en) * | 2013-12-11 | 2014-03-26 | 重庆长安汽车股份有限公司 | Multipurpose spiral spring installation base |
| CN103660825B (en) * | 2013-12-11 | 2016-02-03 | 重庆长安汽车股份有限公司 | A kind of multi-angle screw spring mounting seat |
| CN108909392A (en) * | 2018-09-28 | 2018-11-30 | 重庆长安汽车股份有限公司 | Spring fitting device is hung after a kind of vehicle |
| CN108909392B (en) * | 2018-09-28 | 2020-04-07 | 重庆长安汽车股份有限公司 | Mounting device for rear suspension spring of vehicle |
| CN110255436A (en) * | 2019-05-29 | 2019-09-20 | 江铃控股有限公司 | Rear secondary frame for vehicle helical spring Lifting Equipment |
| CN114248591A (en) * | 2020-09-25 | 2022-03-29 | 丰田自动车株式会社 | Suspension and coil spring of suspension |
| CN114248591B (en) * | 2020-09-25 | 2024-03-15 | 丰田自动车株式会社 | Suspension and helical spring of suspension |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4862561B2 (en) | 2012-01-25 |
| JP2008056002A (en) | 2008-03-13 |
| CN101134429B (en) | 2011-04-13 |
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