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torsion bar

A technology of torsion bar and annular part is applied in the field of torsion bar to achieve the effect of light weight and strength

Active Publication Date: 2016-05-04
NISSAN MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in the conventional torsion bar, there is room for both weight reduction and strength improvement of the torsion bar.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ）

[0020] (structure)

[0021] Figures 1 to 3 is a diagram showing the structure of the torsion bar 10 according to the first embodiment, figure 1 is an oblique view, figure 2 (a) is the front view, figure 2 (b) is a top view, image 3 is the right side view.

[0022] The torsion bar 10 is a type of fixing member, and constitutes a vibration-proof support mechanism for a power unit including an engine in a vehicle relative to a vehicle body. For example, it is installed between the rear end of the power unit and the vehicle body to suppress the displacement of the power unit in the roll direction and the front and rear directions of the vehicle body due to the torque reaction force and inertial force of the power unit.

[0023] exist Figures 1 to 3 Among them, the torsion bar 10 has a resin-made bar main body 12 formed elongated in one direction as a whole. On the rod main body 12, at one end side along its length direction ( figure 1 and figure 2 The right side in ...

no. 2 Embodiment approach ）

[0071] Next, a second embodiment of the present invention will be described.

[0072] (structure)

[0073] The torsion bar 10 according to this embodiment is different from the structure of the first embodiment in the structure of the rib 200 .

[0074] Therefore, the rib 200 which is a different part will be described.

[0075] Figures 5 to 7 It is a figure which shows the structure of the torsion bar 10 which concerns on 2nd Embodiment, Figure 5 is an oblique view, Figure 6 (a) is the front view, Figure 6 (b) is a top view, Figure 7 is the right side view.

[0076] exist Figures 5 to 7 Among them, a rib 200 is formed along the longitudinal direction of the rod main body 12 from the outer peripheral surface of the second annular portion 16 to the center of the connecting pillar portion 18 . The rib 200 is formed by three rib forming grooves formed on the outer peripheral surface of the second annular portion 16 along the circumferential direction of the second a...

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PUM

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Abstract

A torsion bar comprising: a resin-made first annular portion connected to a power unit side; a resin-made second annular portion connected to a vehicle body side; a resin-made connecting portion connecting the first The annular portion and the second annular portion are connected in a state where their axes intersect each other, and have a concave portion on the surface including the outer peripheral surface of the first annular portion; the first elastic member is formed in the inner portion of the first annular portion on the circumference; the first metal cylindrical ring member, whose outer periphery is supported by the first elastic member; the second elastic member, which is formed on the inner periphery of the second annular portion; the second metal cylindrical ring member, whose outer periphery is supported by the first elastic member 2 elastic member support; a first rib formed on the surface including the outer peripheral surface of the first ring part, having an end in the concave part of the connecting part; and a second rib formed on the surface including the second ring On the surface of the outer peripheral surface of the part, there is an end between the second annular part and the first annular part, and at a position closer to the first annular part than the end of the first rib .

Description

technical field [0001] The present invention relates to a torsion bar for suppressing vibration of a power unit including an engine and the like. Background technique [0002] Currently, there is known a torsion bar that supports a torque reaction force applied to a vehicle body by a power unit such as an engine. [0003] For example, in the technique described in Patent Document 1, the torsion bar main body is made of resin for the purpose of reducing the weight of the torsion bar. In addition, ribs are formed from the outer periphery of one of the two annular portions located at both ends to the opening of the other (portion where the rubber bush is exposed), and the axes of the two annular portions intersect each other. [0004] However, in the technique described in Patent Document 1, the reduction in strength due to the resinization of the torsion bar is reinforced by ribs of the same structure formed on the outer periphery of the torsion bar main body. Therefore, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/08B60K5/12F16F1/38
CPCF16F1/3849B60K5/1241B60K5/1208F16F1/38F16F15/08
Inventor 余川学龟井直行
Owner NISSAN MOTOR CO LTD