JPH084343Y2 - Separated vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention has a structure in which a drive system and a driving / living system in a passenger car form spatially independent blocks, and these blocks are detachably connected. The present invention relates to a vehicle body separation type passenger car.

(Prior Art) Passenger cars are roughly divided functionally and spatially into a drive system equipped with an engine and a power transmission mechanism and a driving / living system for passengers to board. The passenger car is usually manufactured as an integrated structure in which the above two systems are included in the same vehicle body.

(Issues to be solved by the invention) With the increase in the number of passenger cars owned, customer needs are beginning to diversify, including fashionability, for the second and subsequent models.

Responding to such a wide variety of customer needs means that the manufacturer must establish a system for high-mix low-volume production. However, if it is attempted to meet the above-mentioned needs on the premise that the passenger car is manufactured as a conventional one-piece structure, the cost of the passenger car manufactured will increase significantly, so it cannot be said to be industrial at all. It is in.

For this reason, the present invention does not include the drive system and the driver's living system in a passenger car in an integrated structure as in the conventional case, but forms both the systems as independent blocks and attaches and detaches them. An object of the present invention is to provide a vehicle body separation type passenger vehicle that is freely connected and configured.

(Means for Solving the Problems) In order to achieve the above object, the vehicle body separation passenger vehicle of the present invention has a structure in which a spring end portion of a torsion spring is fixed to a drive unit, and a spring center of the torsion spring is provided at the center of the torsion spring. Is characterized in that one end of a connecting shaft is fixed, and the vehicle body unit is detachably connected to the other end of the connecting shaft.

(Operation) As described above, the drive unit and the vehicle body unit are connected via the torsion spring and the connecting shaft. And
Since the torsion spring exerts a suspension effect and at the same time has a free spring effect in the vertical and horizontal directions, the torsion spring can absorb various mechanical strains generated in the connecting portion between the drive unit and the vehicle body unit. it can.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a passenger car of the present invention, FIG. 2 is a perspective view of a drive unit from a connecting portion side, and FIG. 3 is a side sectional view of the connecting portion.

In the figure, the drive unit 1 includes a pair of wheels, and an engine, a power transmission mechanism, and the like (not shown) are mounted inside the drive unit 1. A torsion spring 2 formed by spirally winding a spring steel plate is provided in a recess 1a formed on the coupling side of the drive unit 1. In this case, the spring end 2a of the torsion spring 2 is fixed by welding, for example, to the wall surface 1b of the recess 1a of the drive unit. And, the spring center 2b of the torsion spring 2
One end 3a of the connecting shaft 3 having a predetermined diameter, length and strength is fixed to the.

A flat plate 4 having a plurality of holes 4a formed around it is fixed to the other end 3b of the connecting shaft 3 by welding, for example.

The connecting portion of the vehicle body unit 5 is formed as a flat surface 5a, and a hole 5b communicating with the hole 4a of the flat plate 4 is formed therein, and a bolt 5c is passed through these holes 4a and 5b and tightened with a nut 5d. As a result, the flat plate 4 and the vehicle body unit 5 are connected.

A flat plate 6 is brought into contact with the end surface of the connecting shaft 3 on the drive unit 1 side, and a plurality of dampers 7 are arranged between the flat plate 6 and the flat surface 5a of the vehicle body unit 5. There is.

 Next, the operation will be described.

The torsion spring 2 is fixed to the drive unit 1 at its spring end 2a. A connecting shaft 3 is fixed to the center of the torsion spring 2, and a flat plate 4 fixed to the connecting shaft 3 is fixed to a flat surface 5a of a vehicle body unit 5. Therefore, the drive unit 1 and the vehicle body unit 5 are indirectly connected via the torsion spring 2 and the connecting shaft 3.

The torsion spring 2 exerts a spring effect having freedom in up and down and left and right, and also exerts a suspension effect between the drive unit 1 and the vehicle body unit 5, so that the plan view of FIG. As shown by each phantom line in the side view of FIG.
Even if the left and right swings (or the body unit 5) swings up and down, these swings are absorbed by the torsion spring 2 and the function of the connecting portion is normally maintained. Further, as shown in FIG. 4, the vehicle body unit 5 and the drive unit 1 can be swung left and right by the torsion spring 2, so that the drive unit 1 tilts with respect to the vehicle body unit 5 during cornering, and the conventional differential mechanism is Since it can be turned smoothly even without it, it has the same effect (differential effect) as the differential mechanism.

It is preferable to cover the outer periphery of the connecting portion between the drive unit 1 and the vehicle body unit 5 with, for example, a bellows because not only a good appearance is obtained but also each member of the connecting portion can be protected from rainwater and the like.

When exchanging the vehicle body unit, the bolts and nuts fixed to the flat surface 5a of the vehicle body unit are removed to separate the drive unit 1 from the vehicle body unit 5, and then another type of vehicle body unit is driven. It may be fixed to the flat plate 4 of 1.

(Effects of the Invention) As is apparent from the above description, the vehicle body separation type passenger vehicle of the present invention has a structure in which the spring end portion of the torsion spring is fixedly mounted to the drive unit and is connected to the spring center of the torsion spring. Since one end of the shaft is fixed and the other end of the connecting shaft is detachably connected to the vehicle body unit, by utilizing the free spring effect of the torsion spring to the left, right, up and down, The suspension of the drive unit is unnecessary, and the differential effect is exhibited.

Furthermore, since the vehicle body unit is detachably connected to the drive unit, it is relatively easy to meet customer needs by making various types of vehicle body units and connecting them to the drive unit as desired. Can correspond to.

[Brief description of drawings]

FIG. 1 is a perspective view of a passenger car according to an embodiment of the present invention, FIG. 2 is a perspective view of a drive unit, FIG. 3 is a side sectional view of a connecting portion between a drive unit and a vehicle body unit, and FIG. FIG. 5 is a state diagram showing swinging in the vertical direction, and FIG. 5 is a state diagram showing swinging in the vertical direction. 1 ... Drive unit, 2 ... Torsion spring, 2a ... Spring end, 2b ... Spring center, 3 ... Coupling shaft, 4 ... Plate, 5 ... Body unit, 7 ... Damper

Claims (1)

[Scope of utility model registration request] 1. A drive unit has a spring end portion of a torsion spring fixedly mounted, one end of a connecting shaft is fixed to the spring center of the torsion spring, and a vehicle body unit is detachably connected to the other end of the connecting shaft. Separated body passenger car characterized by being used.