JPH0712769B2 - Supporting device for the vehicle body of a spring leg or spring shock absorber of an automobile - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a support body that is applied to a vehicle body or a vehicle body component member from below and is screwed to the vehicle body or the vehicle body component member. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-side support device for a spring leg or a spring shock absorber of an automobile, in which a piston rod of the spring leg or the spring shock absorber is axially supported by interposing a rubber elastic member.

2. Description of the Related Art A bearing device of the above type is disclosed in German Patent Application Publication No. 1
It is known from 2435723 or 2613982 or 2745380.

Such a support device absorbs on one side the vibrations of the vehicle compartment caused by the support device by road impacts or the like, or at least reduces the transmission of the vibrations and on the other hand provides a precisely defined wheel guide. Must be configured to assure.

Further, it is increasingly desirable to mechanize or automate at least a portion of automobile assembly, especially final assembly. Therefore, a supporting device on the side of the vehicle body suitable for automated assembly of the spring leg is already known (German Patent Application No. 304 1985), in which case the vehicle body and the end of the spring leg are connected. In particular, a rubber which is vulcanized so as to be adhered between the inner thin plate cup-shaped body connected to the piston rod, the outer thin plate cup-shaped body connected to the vehicle body and the inner and outer thin plate-shaped cup-shaped bodies is subjected to a shear stress. And a rubber / metal bearing having a member. The outer lamella cop, which is preferably wedge-shaped or taper upwards, is adapted to the dimensions of the outer lamella cop from the bottom during assembly of this spring-leg bearing device and is adapted to the interior of the vehicle body. It is inserted into the bearing receiving part of the vehicle body molded into and is received in the bearing receiving part in a form-fitting manner in a contracting elastic direction and in a direction perpendicular to this direction.
In this case, the outer lamella cop is held in the bearing receiving part in the direction of extension and elasticity only by means of a frictional connection, and is not screwed to the vehicle body.

In this known arrangement, a spring leg or a shock absorber (usually as part of a pre-assembled axle unit) is assigned to the associated bearing of the vehicle body which is suspended from below during vehicle assembly either manually or automatically. It is inserted in the department. In this case, immediately after inserting the spring legs into the vehicle body, the upper rod-shaped body is screwed to the end of the piston rod which penetrates the bearing receiving portion in order to secure it in a known manner, whereby the guide rod is guided into the vehicle body. The spring legs or the pre-assembled shaft units are no longer dropped from the suspended body. On the other hand, in the lowered state or during normal driving, the above-mentioned cap is of little importance. This is because, in this case, the rubber-metal bearing of the spring leg is retained in the associated bearing receptacle only by a frictional connection. This known arrangement is only applicable when the coil spring is supported on the vehicle body side via the piston rod.

Another known vehicle-side bearing device (German Patent Publication No. 3302057) suitable for automatically assembling a spring leg or a shock absorber is also provided with an upper spring end rather than directly. It is only used when it is indirectly supported by the vehicle body via the piston rod. In the case of this known bearing device, a body cutout for receiving a rubber-elastic bearing at the end of the piston rod is provided with a first bulge extending downward from the central contraction for supporting the first rubber-elastic body. And a second trough for supporting the second rubber elastic body, the second trough expanding upward from the contraction portion. In this case, the rubber elastic bearing is such that the upper second rubber elastic body, which is pre-mounted on the piston rod, penetrates the piston rod together with the piston rod from below through the constricted part of the vehicle body notch during assembly. It is designed to be inserted into the trough and is thus supported on the piston rod in the region of the piston rod end. Conventionally, the washer located at the upper piston rod end must be installed only in this arrangement when the vehicle is dropped onto the road surface after the suspension assembly has been completed. That is, the pre-assembled shaft unit freely suspended on the vehicle body can be obtained by the upper second rubber elastic body without difficulty in this known arrangement.

The rubber elastic support must be designed and arranged so that the upper rubber elastics of both rubber elastics are designed so that they can be inserted from below into the doubly-conical vehicle body / bearing receiving part. There are some structural restrictions on the design.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention An object of the present invention is, in one aspect, to maintain elastic properties and cushioning properties, and to perform spring fastening or securing work without any screwing work or securing work during suspension assembly. A shock absorber or a spring leg or an axle with a spring shock absorber can be automatically assembled and can also be used in other cases especially in the case of a spring leg or a spring shock absorber having a spring member directly supported on the vehicle body. Thus, the object is to provide a vehicle-body-side support device of the type described at the beginning.

Means for Solving the Problems According to the present invention, the problems are as follows: a) The support is configured as a thin plate cup-shaped body opened on the vehicle body side that is at least substantially rotationally symmetric, and the thin plate cup-shaped body is The bottom part is attached to the piston rod with a rubber elastic member interposed, and the upper edge of the thin plate-cop body bent outward in a flange shape is screwed to the vehicle body, and b) the thin plate. The cup-shaped body has, at its end facing the vehicle body, holding protrusions which are evenly distributed and arranged in a circular shape, and c) is held by the vehicle body or a component fixedly connected to the vehicle body. Corresponding protrusions are arranged on the protrusions, and d) the holding protrusions and the corresponding protrusions are appropriately selected with respect to the spatial arrangement relationship and the dimensional relation to each other, and on one surface, during the assembly of the thin plate cup-shaped body, Half the retaining protrusion and the corresponding protrusion. The elastic force in the direction to move axially toward the car body until the edge of the thin plate-shaped body comes into contact with the car body, and the axial holding force of the projections engaged with each other is the spring leg or spring. The shock absorber and, optionally, the other components of the wheel suspension system, together with the other components of the wheel suspension mechanism, are sufficient to allow free suspension of the preassembled sheet metal cop on a vehicle body, and In terms of surface, it is solved by the fact that the thin cop body is configured to be removed from the vehicle body in the axial direction again by rotating relative to the vehicle body for removal.

Advantageous embodiments of the invention are described in the second and subsequent claims.

Advantageous Effects of the Invention In the present invention, the upper end of the preliminarily assembled spring leg or spring shock absorber and the fixed portion on the vehicle body side are such that the complete spring leg is inserted from below into the notch on the vehicle body side and the snap connection is made there. It is configured to be locked in form.

Embodiments FIGS. 1, 3 and 4 show the upper end of a conventional spring leg, which is pivotally mounted on a vehicle body 1 which is shown only diagrammatically in a motor vehicle. It is composed of a conventional shock absorber and a coil spring 3 concentrically surrounding the shock absorber and used as a vehicle shock mechanism. As for the telescopic shock absorber, only the upper end of the piston rod of the shock absorber is shown.

A support body 7 is fixed to the upper end of the piston rod 4 by interposing two rubber elastic members 5 and 6, and the support body 7 is applied to the vehicle body 1 or a vehicle body component from below to support the vehicle body or the vehicle body. Screw 8 shown schematically only in the component
Is releasably bound via.

The support body 7 is formed as a thin plate-shaped body which is rotationally symmetrical with respect to its main shape and which is opened on the vehicle body side. The bottom portion 10 of the thin plate cup-shaped body having the central through hole 9 for the piston rod 4 is screwed to the piston rod 4 by inserting two rubber elastic members 5 and 6, and in this case, one rubber elastic member is The rubber elastic member on the other side is in contact with the bottom portion 10 from below from above.

On the vehicle body side, the thin plate-shaped body has an upper edge portion 11 that is bent outward in the form of a flange, and this edge portion is directly applied to the vehicle body 1 and fixed to the vehicle body by screws.

Circular and evenly distributed holding protrusions 12 are arranged at the end of the thin plate-shaped body 7 facing the vehicle body 1, and are fixed to the vehicle body 1 or to the vehicle body so as to cooperate with the holding protrusions. Corresponding corresponding projections 13 are provided in a correspondingly circular and uniformly distributed manner on the components connected to the. In this case, the holding protrusion and the corresponding protrusion are pushed toward the vehicle body 1 from below until the edge portion 11 of the thin plate cup-shaped body contacts during the vehicle assembly of the thin plate cup-shaped body. The protrusion is spring-elastically pushed in the radial direction. That is to say that the pre-assembled spring leg or spring damper, in particular with the thin-plate cups 7, is pushed downwards towards the vehicle body and locked there.

In this case, the retaining projections 12 and the corresponding projections 13 are arranged in such a way that the axial holding forces of these projections which engage one another together with the spring leg or the spring damper 2 and possibly other components of the wheel suspension mechanism. It is designed to be sufficient to freely suspend the unitarily preassembled sheet metal cop body on the vehicle body 1.

According to the above-mentioned configuration of the support device for the vehicle body side of the spring leg 2, the vehicle body upper structure, that is, the vehicle body, can be automated by automatically assembling the spring leg together with the axle to be mounted together in the overhead conveyor type flow work. The pre-assembled component unit (as well as the other component unit) is inserted from below into the vehicle body and is locked there only for the first time. Final assembly of spring legs,
That is, the final fastening of the thin cop body to the vehicle body using the screws 8 means that the vehicle is lowered onto the floor (with its own wheels) after the assembly in the overhead conveyor type flow work is carried out. Occasionally done.

In the event of a defect occurring over time, it is sometimes necessary to remove the spring leg or spring bumper, i.e. to separate it from the vehicle body, so that the retaining projection 12 and the corresponding projection 13
The axial locking action of a kind of bayonet connection type generated by these projections is solved by disengaging the screw 8 for removing the spring leg and by rotating the thin plate cup body and the vehicle body relative to each other. And is arranged so that the spring leg 2 can be removed downwards.

In the embodiment shown in FIGS. 1 and 3, a rotationally symmetrical assembly sleeve 14 made of a thin plate is fixed to the vehicle body 1 by welding, for example, and this assembly sleeve 14 is arranged in the axial direction in the interior of the thin plate-shaped body 7. Has rushed into. In the lower edge area of the assembly sleeve 14, that is to say the edge area which projects into the sheet-copper, a number of corresponding projections 13 are distributed evenly along the outer circumference of the sleeve, for example by suitable extrusion of the assembly sleeve.
Are arranged. In a corresponding manner, in the upper region of the sheet-cop body 7, the same number of retaining projections 12 are likewise distributed evenly along the inner peripheral surface of the sheet-cop body. As is clear from FIG. 1 and FIG. 3, the holding projection 12 and the corresponding projection 13 are opposed to each other when the thin plate cup-shaped body 7 is pushed toward the vehicle body 1 from below until the edge portion 11 contacts. Be locked. As shown in FIG. 2, in the embodiment shown, there are provided four retaining projections 12 which are offset from each other by 90 degrees and corresponding projections 13 which are correspondingly offset from each other by 90 degrees. Of course, the number of protrusions can be different. Further, as shown by the chain line in FIG. 2, after the screw 8 is disengaged and the thin plate cup-shaped body 7 is rotated relative to the vehicle body 1 and then the assembly sleeve 14, the holding projection is at the predetermined position 12a. Then, at this position 12a, the locking action of the holding projection and the corresponding projection in the axial direction is released.

In the exemplary embodiment of FIG. 1, the edge 11 of the outwardly bent sheet-cop body is designed as an upper spring disc for the coil spring 3, whereby the coil spring 3 is normally independent of the piston rod 4. While the rubber elastic supporting member 15 is directly supported on the vehicle body 1, the coil spring 3 in the embodiment shown in FIG. 3 has an upper spring disc 16 attached to the piston rod 4. The spring disc 16 supports the lower rubber elastic member 6.
In the embodiment shown in FIG. 3, the bottom of the sheet-cop body 7 is formed only by the contracted portion 10a of the sheet-cop body. Of course, even in the case of such an arrangement type, the thin plate cup-shaped body can be configured as shown in FIG.
Moreover, in the embodiment of FIG. 1, it is also possible to use the thin plate-cop body of the type of thin plate-cop body shown in FIG.

In the embodiment according to FIG. 4, the holding projection 12 is a thin plate cup-shaped body 7.
The plastic cap is preferably not formed directly on the car body, but is preferably formed on a plastic cap made of fiber-reinforced plastic, the plastic cap 17 being the end of the sheet-cop body 7 facing the car body 1. Is attached to the section and covers the inside of the thin cup-shaped body. In particular, as shown in detail in FIG. 5, the plastic cap has a frusto-conical shape and is distributed evenly along the apex on the head of the plastic cap so that it is radially outward. The clip-shaped holding protrusion 12 having the holding protrusion 18 is formed. On the legs of the frustoconical plastic cap, clip-shaped fixing projections 19 are integrally formed by being evenly distributed over the circumferential direction along the bottom circle, and the fixing projections 19 project outward in the radial direction. The retaining projection of is engaged with the back of a radially inwardly projecting annular flange 20 of the thin cup-shaped body.

The plastic cap 17 is preferably snap-fitted into the sheet-copper body in the pre-assembled state of the spring leg or spring damper, ie after the sheet-copper body 7 has been screwed onto the upper end of the piston rod 4. The fixing projection 19, like the holding projection 12 and the corresponding projection 13 with respect to the axial holding force, is fixed to the spring leg and possibly to the spring leg at least during assembly in an overhead conveyor assembly. It must be designed so that it can be freely suspended with another shaft part.

In FIGS. 1 and 3, the holding projection 12 of the thin plate cup-shaped body 7 is shown.
The corresponding projection 13 cooperating with is formed on the assembly sleeve 14 which projects into the interior of the thin cup body, whereas in the embodiment of FIG. 4 the corresponding projection 13 is arranged concentrically with respect to the piston rod 4. It is designed as a spring tongue which projects radially in the formed car body cutout 21, of which only one is shown in FIG. In this case, as is clear from FIG. 4, the vehicle body notch 21 conforms to the contour of the plastic cap 17 and is likewise formed into a substantially truncated cone shape.

In the case of this embodiment as well, the corresponding projection on the vehicle body side and the projection 12 for holding the thin plate-shaped body or plastic cap 12
The holding projection 12 is rotated to the position 12a shown by the alternate long and short dash line in FIG. 6 by disengaging the screw 8 and rotating the thin plate cup-shaped body 7 relative to the vehicle body. In this position, the retaining projection 12 occupies the outside of the working range of the corresponding projection 13 and the spring leg 2 can be removed downwards without problems.

Particularly, the advantage of the embodiment shown in FIGS. 4 to 6 is that the vehicle body is inconvenient in the range of the vehicle body notch 21 when the holding projection 12 and the corresponding projection 13 are pressed against each other when fixing the spring leg to the vehicle body 1. It is possible to avoid the surface damage that exerts various effects. On the other hand, in the case of a structure made only of metal, it is not always possible to completely avoid such surface damage.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of a first embodiment of a vehicle-body-side support device according to the present invention.
2 is a plan view of a spring leg end portion provided with a support, FIG. 3 is a longitudinal sectional view of a second embodiment of a vehicle body side bearing device according to the present invention, and FIG. 4 is a vehicle body side bearing device according to the present invention. FIG. 5 is a longitudinal sectional view of another embodiment of FIG. 5, FIG. 5 is an enlarged view of a part of the embodiment of FIG. 4, and FIG. 6 is a plan view of a notch on the vehicle body side of the bearing device according to FIG. 1 ... Car body, 2 ... Spring leg, 3 ... Coil spring, 4 ...
Piston rod, 5,6 ... Rubber elastic member, 7 ... Support, 8 ... Screw, 9 ... Through hole, 10 ... Bottom, 10a ...
Shrinkable part, 11 …… Edge, 12 …… Holding protrusion, 12a …… Position, 1
3 ... Corresponding protrusion, 14 ... Assembly sleeve, 15 ... Support member, 16 ... Spring disc, 17 ... Plastic cap, 18 ...
… Holding projection, 19 …… Fixed protrusion, 20 …… Flange, 21…
… Body cutouts

Claims (5)

[Claims] 1. A support body which is applied to a vehicle body or a vehicle body component member from below and is screwed to the vehicle body or the vehicle body component member, and a spring rod or a piston rod of a spring shock absorber is provided with a rubber elastic member. In a vehicle-body-side support device of an automobile spring leg or spring shock absorber, which is axially supported by interposing members, a) a thin plate in which a support body (7) is opened at least on substantially vehicle-symmetrical body-side A thin plate-shaped body (7), the bottom part (10, 10a) of which is attached to the piston rod (4) with a rubber elastic member (5, 6) interposed; and The upper edge (11) of the thin plate cup-shaped body bent outward in a circular shape is screwed to the vehicle body (1), and b) the thin plate cup-shaped body is evenly attached to the end facing the vehicle body. The holding protrusions (12) distributed in a circle and arranged in And c) a corresponding projection (13) adapted to the holding projection (12) is arranged on the vehicle body (1) or on a component fixedly connected to the vehicle body, and d) a holding projection. (12) and the corresponding projection (13) are appropriately selected in terms of spatial arrangement and dimensional relationship so that the holding projection and the corresponding projection are elastic in the radial direction during assembly of the thin plate cup-shaped body on one surface. The axial holding forces of the projections that are pressed against each other so as to be moved in the axial direction toward the vehicle body until the edge portion (11) of the thin plate-shaped body comes into contact with the vehicle body and engage with each other are spring legs or springs. A thin plate cop body (7) preassembled to form a structural unit together with a shock absorber (2).
To be freely suspended on the vehicle body (1), and on the other side is again removed axially from the vehicle body by pivoting relatively to the vehicle body for removal. A support device for a vehicle body of a spring leg or a spring shock absorber of an automobile, which is configured as described above. 2. The edge (11) of the thin plate-shaped body, which is bent outward, has a spring leg or a spring (3) of a spring shock absorber (2) directly on the vehicle body side, independently of the piston rod (4). 2. A bearing device according to claim 1, which is configured as an upper spring disc for supporting. 3. An at least substantially rotationally symmetrical assembly sleeve (14) which axially projects into the inside of the thin cup-shaped body (7) is fixed to the vehicle body (1), and a corresponding projection (13). Claim 1 is characterized in that is arranged along the outer peripheral surface of the lower end of the assembling sleeve and the holding projections (12) are arranged along the inner peripheral surface of the thin plate cup-shaped body in the upper region of the thin plate cup-shaped body (7). The bearing device according to item 2 or item 2. 4. A plastic cap (17) for covering the inside of the thin cup-shaped body facing the vehicle body (1) is attached, and a holding projection (12) is provided for the plastic cap (17). ) And the corresponding projection (13) is configured as a spring tongue projecting radially in a car body notch (21) arranged concentrically to the piston rod (4). Range 1st or 2nd
Support device described in paragraph. 5. The plastic cap (17) is frustoconical in shape, the legs of the plastic cap are attached to the thin plate cup-like body (7), and the plastic cap has a clip-like holding projection. The bearing according to claim 3, wherein (12) is molded, and the vehicle body (1) has a frustoconical shaped part adapted to the shape of a frustoconical plastic cap. apparatus.