JPH0248293Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a mounting device for fixing a rear wheel steering actuator to a vehicle body on the lower rear surface of an automobile in which both front and rear wheels can be steered.

(Conventional Device) Generally, parts as shown in FIG. 2 are arranged on the lower rear surface of an automobile.

In the figure, 1 is a vehicle body, 2 is a rear bumper provided at the rear end of the vehicle body 1, and 3 is a rear wheel.

Reference numeral 4 denotes a spare wheel house provided by projecting downward from the rear floor plate of the vehicle body 1, and a gasoline tank 5 is attached to the lower surface of the vehicle body 1 in front of the spare wheel house 4.

Furthermore, a suspension member 6 is fixed between the spare wheel house 4 and the gasoline tank 5, across reinforcing members 1a provided on the left and right sides of the vehicle body 1.

Between both ends of the suspension member 6 and the left and right rear wheels 3, there is a parallel link 7 formed of two links 7a and 7b extending in the left-right direction of the vehicle body 1.
One end of the parallel link 7 is connected to a shaft 6a protruding from both end sides of the suspension member 6, and the other end is connected to a bearing member (not shown). The bearing member rotatably supports the rear wheel 3.

A radius slot 8 is also provided on the lower surface of the vehicle body 1 between the bearing member and the vehicle body 1 in front thereof, and the front end of the radius rod 8 is connected to the lower surface of the vehicle body 1, and the rear end is connected to the bearing. ing.

Reference numeral 9 denotes a stabilizer whose both ends are connected to the left and right bearing members, and whose intermediate portion is supported by the left and right reinforcing members 1a.

A muffler 10 is further provided on the lower surface of the vehicle body 1 in line with the spare wheel house 4. An exhaust tube 11 is piped from the front of the vehicle body 1 to the muffler 10, and a tail tube is piped from the muffler 10 to the rear end of the vehicle body 1. 12 are piped.

Each of the above-mentioned parts must be able to fully perform its functions and not interfere with each other, and at the same time must satisfy constraints on the external dimensions of the vehicle body, so the spacing between them must be kept to the minimum necessary. It is located as.

On the other hand, as recently disclosed in Utility Model Application Publication No. 58-192773, a rear wheel steering actuator is newly provided in order to reduce the turning radius of the vehicle and improve driving stability by steering the rear wheels as well. is becoming necessary.

(Problem to be solved by the invention) For this reason, when attempting to install a rear wheel steering actuator on the rear lower surface of the above-mentioned conventional automobile, there is sufficient space on the rear lower surface of the vehicle body to install the rear wheel steering actuator. Furthermore, it is difficult to change the arrangement of the parts because it may cause problems in the functions of the respective parts.

(Means for Solving the Problems) The present invention was made to solve the above-mentioned problems, and includes housing the rear wheel steering actuator in a suspension member that supports the rear wheel suspension. It is designed to be installed.

(Function) The mounting device for the rear wheel steering actuator of the present invention as described above allows the rear wheel steering actuator to be installed without changing the arrangement of the parts provided on the lower rear surface of the conventional automobile. It has the effect of being able to.

(Example) Fig. 1 is a partially cutaway perspective view of an embodiment of the rear wheel steering actuator mounting device of the present invention, and the same parts as in Fig. 2 are designated by the same reference numerals. show.

Reference numeral 13 indicates a suspension member in the shape of a substantially channel that opens downward; 14 indicates a rear wheel steering actuator; an elastic body 15 is inserted into the rear wheel steering actuator 14;
Hold this bracket 16 with the bolt 17.
By fixing the rear wheel steering actuator 14 in the groove of the suspension member 13 via the nut 18, the rear wheel steering actuator 14 is accommodated within the suspension member 13 and attached thereto.

Further, both ends of the suspension member 13 are connected to the vehicle body 1 through bolts 17 and nuts 18.
Hydraulic hoses 14a and 14b are fixed to the reinforcing member 1a and connected to the rear wheel steering actuator 14.
is connected to a hydraulic circuit of a power steering device (not shown).

A link 7a on the vehicle rear side of the parallel link 7 is connected to the ends of the steering rods 14c on both sides of the rear wheel steering actuator 14 via a ball joint 19, and a link 7b on the vehicle front side is connected to the suspension. It is pivotally connected to a bracket 13a provided on the front side of the member 13 via a shaft 13b.

Incidentally, the shielding plate 20 may be placed on the lower surface of the suspension member 13 and fixed via the bolts 17 and nuts 8.

(Effect of the invention) The mounting device for the rear wheel steering actuator of the present invention as described above utilizes the space inside the suspension member that was not used conventionally.
Space efficiency can be improved, and since there is no need to change the arrangement of conventional components, there is no risk of impairing the functions of the components.

In addition, if a shielding plate is fixed to the lower surface of the suspension member so as to cover the lower opening of the suspension member as in the above embodiment, the rear wheel steering actuator can be protected from stones, mud, and exhaust tubes while driving. It can protect the suspension member from radiant heat, etc., and can also reinforce the suspension member. Furthermore, if one of the links is attached to the side of the suspension member as in the above embodiment and only the rear wheel steering actuator is housed within the suspension member, the suspension member can be kept to the minimum necessary size. It's over.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the rear wheel steering actuator of the present invention, and FIG. 2 is a bottom view showing the rear lower surface of a conventional automobile. 1... Vehicle body, 2... Rear bumper, 3... Rear wheel, 4... Spare wheel house, 5... Gas tank, 6... Suspension member, 7...
...Parallel link, 8...Radius slot, 9...
...Stabilizer, 10...Muffler, 11...
Exhaust tube, 12...Tail tube, 13...Suspension member, 14...
Rear wheel steering actuator, 15... elastic body, 1
6... Bracket, 17... Bolt, 18... Nut, 19... Ball joint, 20... Shielding plate.

Claims (1)

[Scope of utility model registration request] A mounting device for a rear wheel steering actuator, characterized in that the rear wheel steering actuator is housed and mounted within a suspension member that supports a rear wheel suspension.