JPH02164675A - Frame for vehicle - Google Patents

Abstract

PURPOSE:To aim at reducing the number of molds and a manufacturing cost by forming respective front and rear frame elements, which are mutually separate bodies, in plane symmetry with a plane orthogonal to an axis in the longitudinal direction of a vehicle as a symmetry plane so as to make it possible to form the respective front and rear frame elements using identical molds. CONSTITUTION:A frame 1 is formed by connecting bilateral side frames 10, 20 with many cross members 30-37. In this case, the bilateral side frames are respectively formed by mutually connecting front and rear frame elements 10a, 10b; 20a, 20b which are separate bodies. The bilateral front and rear frame elements 10a, 10b; 20a, 20b are respectively formed in mutually plane symmetry with a plane S-S orthogonal to an axis O-O in the longitudinal direction of a vehicle as a symmetry plane. In other words, both front and rear frame units 100a, 100b are formed in plane symmetry interposing the above mentioned plane S-S. Accordingly, molds used for both front and rear frame units 100a, 100b are made mutually identical.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a vehicle frame.

(Prior Art) A frame for mounting an engine, a transmission, etc., and supporting a leg area, etc. is usually manufactured by joining a large number of frame elements (members) to each other by means such as welding. Further, each of the frame elements is formed into a predetermined shape using a mold.

[Problem to be solved by the invention]

Incidentally, in many of the above-mentioned frames, the shapes of the front part and the rear part are significantly different due to the layout of the engine and the like. In cases where the front and rear parts have different frame shapes, each frame element from the 171st part of the frame to the rear part of the frame is made using a dedicated mold. Because it has to be formed into a predetermined shape,
Requires a large number of types, which requires reframing '4U B
The cost was extremely high.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, an object of the present invention is to provide a small-shaft frame that can reduce manufacturing costs.

[Means for Solving the Problems] Accordingly, in the present invention, the frame is composed of a front frame element and a rear frame element that are separate from each other, and these front frame elements and rear frame elements are connected to a vehicle. The above object has been achieved by forming a plane symmetrical shape with a plane perpendicular to the front-rear axis as the plane of symmetry, and by connecting these front and rear frame elements to each other to construct a frame.

[Effect]

According to the above configuration, it is possible to manufacture the front frame element and the rear frame element using the same mold.

[Example] Hereinafter, a specific configuration of the present invention will be described in detail based on drawings showing examples.

FIG. 1 shows an example in which the present invention is applied to a frame of a four-wheel drive vehicle for traveling on rough terrain, and the figure shows the state of the chassis.

An engine 2 is mounted on the frame 1, and a transmission 3 is provided in front of the engine (to the right in the figure). Furthermore, a transfer 4 is provided in front of the transmission 3, and this first transfer 4 is linked to the front wheels FL, FR via a front propeller shirt [5 and a front differential 6], and is connected to the front wheels FL, FR through a front propeller shirt [5 and a front differential 6]. It is linked to the rear wheels RL and RR via a propeller shaft 7 and a rear differential 8. A tri-bird seat 9 is provided in an area directly above the transmission 3, and a steering handle 10 is provided in an area in front of the tri-bird seat 9. An operation box 11 equipped with a shift lever, etc. is provided on the right side (lower side in the figure) of the tribe's seat 1-9, while an operation box 11 equipped with a shift lever, etc. is provided on the right side of the tribe's seat 1-9. , a fuel tank 12 is provided. Further, reference numeral 13 is an air cleaner, 14 is a muffler, 15 is a battery, 16 is a radiator, and 17 is a roll bar.

The frame 1 includes a left side frame 10 and a right side frame 20 that extend along the front and back direction of the niyu,
These both side frames 10.20 are connected to the cross member 3
0, 31.32, 33, 34°35.36, and 37
It is constructed by connecting each other.

As clearly shown in Figures 1 and 2, the left side frame 1
0 is made by welding together a front frame element 1Qa and a rear frame element 10b, which are separate pieces, and the right side t-nide frame 20 is similarly made from a front frame element 1Qa and a rear frame element 10b, which are separate pieces. The rear frame element 20a and the rear frame element 20b are welded and connected to each other.

In addition, as clearly shown in FIG. 1, the left side frame 10
a front frame element 10a and a rear frame element 10b,
The five front frame elements 20a and the rear frame element 20b of the right side frame 20 are symmetrical to each other with respect to a plane S-8 orthogonal to the longitudinal axis 0-0 of the vehicle. In other words, a front frame unit 1 including the above-mentioned front frame elements 10a, 20a.
00a and the rear frame unit I-100b including the rear frame elements 10b and 20b are located on the plane S-8.
The type used for the front frame unit h100a can also be used for the rear frame unit l-100b. Specifically, the front frame element Xt510a of the K side frame 10 and the rear frame element 20b of the right side frame 20 can be formed by the same mold, and the hook part of the H side frame 10 can be formed by the same mold. The frame element 10b and the front frame element X20a of the right side frame 20 can be formed by the same mold.

FIG. 3 shows another embodiment, and this frame 1
'4, above) Similar to the frame 1 shown above, the left side frame 10' is made by welding the front frame element 10a' and the rear frame element 10b', which have a completely symmetrical shape. In addition, the right side frame 20' is connected to the front frame element 20 having a symmetrical shape L7.
a' and the rear frame element 20b' are welded together.

Note that numerals 30' and 37' in the figure are cross members.

Each of the above frame elements 10a', 10b', 20a'
2ob' each exhibits a symmetrical shape in the upper and lower sides with the horizontal plane as the plane of symmetry. That is, for example, the front frame element 1Q a / of the left side frame 10' is directly connected to the rear frame element 20b of the right side frame 20'.
', and by turning it over, the rear frame element iob' of the left side frame 10',
and the curved frame element 2 of the right side frame 20'.
It can be used as 0a'. That is, 1
4 frames using 4 molds f410a', 10
It is possible to form all b20a' and 20b'.

It goes without saying that the present invention is not only applicable to four-wheel drive off-road vehicles, but can be effectively applied to frames of various types of vehicles.

(Effect between lights) As detailed above, according to the vehicle frame according to the present invention, the front frame element and the rear frame element, which are separate from each other, are symmetrical about a plane perpendicular to the longitudinal axis of the vehicle. Since the planes and edges are symmetrical, it is possible to form the front frame element and the rear frame element using the same mold.This allows the mold used to manufacture the frame to be The total number of parts is small, which makes it possible to reduce the manufacturing cost of the frame.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view showing the chassis of an axle for rough terrain to which a vehicle frame according to the present invention is applied, FIG. 2 is an exploded perspective view of the main parts of the frame, and FIG. 3 is an exploded perspective view of another embodiment. FIG. 2 is an exploded perspective view of a main part of the frame. 1...Frame, 10.10'...Left side frame, 10a, 1
0a' 20a, 20a' -- Front frame element, 10b, 10b', 20b, 20b' -- Rear frame element, 20.20' -- Right side frame, 30.30
' , 31.32, 33, 34, 35° 36.37.3
7'...Cross member, 100a...Front frame unit, 100b...Rear frame unit 1-0
Figure 2

Claims (1)

[Claims] A front frame element and a rear frame element are formed separately from each other and are formed in a plane symmetrical shape with respect to a plane orthogonal to the longitudinal axis of the vehicle, and the front frame element and the rear frame element are A vehicle frame characterized in that it is constructed by joining together.