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joint structure

A technology of structure and joint, applied in the direction of superstructure, subassembly of superstructure, transportation and packaging, etc., can solve problems such as poor mechanical properties, achieve the effect of improving rigidity, reducing deformation and relieving stress concentration

Inactive Publication Date: 2018-02-23
SUZUKI MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resin materials have a smaller specific gravity than metal materials such as iron and aluminum, but have poorer mechanical properties

Method used

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Effect test

no. 1 Embodiment approach

[0037] use Figure 1 ~ Figure 4 The first embodiment will be described. Such as figure 1 As shown, the side members 10 of the present embodiment are members that constitute the frame of the vehicle body, and are members that extend in the vehicle front and rear direction and are arranged in pairs on both sides in the vehicle width direction. The side member 10 of this example is formed of a fiber-reinforced resin material. The cross member 20 is a member constituting the frame of the vehicle body, like the side member 10. The cross member 20 is a member extending in the vehicle width direction, and is joined to the side of the side member 10.

[0038] As mentioned above, resin materials have a lower specific gravity than metal materials such as iron and aluminum, but have poor mechanical properties. Fiber-reinforced resin materials are materials that use carbon fiber and glass fiber to supplement poor mechanical properties. In this example, it is formed of, for example, a gla...

no. 2 Embodiment approach

[0067] use Figure 5 The second embodiment will be described. This embodiment is the first embodiment ( Figure 1 ~ Figure 4 In the modified example of ), the same or similar parts as in the first embodiment are given the same reference numerals, and repeated descriptions are omitted.

[0068] In this embodiment, as Figure 5 As shown, a Japanese katakana U-shaped rib 29 is provided on the inner side of the beam 20. The Japanese katakana U-shaped rib 29 is composed of a rectangular plate that is attached to the back of three surfaces, the second upper surface 21a, the front vertical wall surface 22a, and the rear vertical wall surface 23a, respectively.

[0069] The Japanese katakana U-shaped rib 29 may be arranged in the vicinity of the junction in the same manner as the letter X-shaped rib 26.

[0070] According to this embodiment, by providing Japanese katakana U-shaped ribs 29 and the like on the beam 20 in the same way as the letter X-shaped ribs 26, the rigidity near the junct...

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Abstract

The present invention provides a joint configuration. This joint structure can increase the rigidity against the bending load acting on the T-shaped joint. The joining structure has a second member (20) joined to the side of the first member (10) in the shape of a letter T, and the first upper surface (11a) and the flange (25) are joined through the joining portion (30). Long ribs (15a) are provided on the back side of the first upper surface (11a). The full length of the long rib (15a) is set to a length more than twice the distance from the contact portion between the first member (10) and the second member (20) to the joint portion (30a), and the long rib (15a ), among the angles formed by the direction in which ) extends and the longitudinal direction of the second member (20), the angle formed on the opposite side to the second member (20) is an acute angle.

Description

Technical field [0001] The present invention relates to a joint structure in which two members formed of a fiber reinforced resin material are joined in a letter T shape. Background technique [0002] In the structure joined in the letter T shape, for example, there is a structure for joining a member for forming an automobile frame. For example, the joint between the longitudinal beam and the cross beam has a T-shaped joint structure. [0003] The side member is a member extending in the front-rear direction of the vehicle, and the cross member is a member extending in the width direction of the vehicle. Regarding the connection between these members, for example, the technique disclosed in Patent Document 1 is known. [0004] Patent Document 1 discloses that a beam is provided on a member in a direction resisting deformation, thereby improving rigidity and strength. This technology is a technology that strengthens the side sill in the case where the input from the outside to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D29/04B62D25/20
CPCB62D29/048B62D25/2036B62D29/041
Inventor 村瀬祐大
Owner SUZUKI MOTOR CORP
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