JPH0591949U - Propeller shaft support device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to easily share a center bearing bracket without forcibly bending the rubber cushion. [Structure] A cylindrical collar 9 is interposed in a portion of the rubber cushion 7 surrounding the bearing case 6. The rubber cushion 7 is a cylindrical inner rubber cushion 7A interposed between the bearing case 6 and the collar 9, and a substantially cylindrical outer rubber cushion interposed between the outer peripheral side of the collar 9 and the retainer 8 side. 7B, and the contact surfaces of the inner rubber cushion 7A and the collar 9 with each other are formed into a spherical shape, so that the inner rubber cushion 7A can be attached to the collar 9 while being tilted freely and comfortably. I chose

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a propeller shaft support device, and more particularly to a technique for sharing support parts.

[0002]

[Prior Art]

 Conventionally, as shown in FIG. 3, the middle of a propeller shaft 1 in a vehicle such as a truck is rotatably supported by a vehicle body frame, for example, a cross member via a center bearing bracket 2. That is, specifically, as shown in FIG. 4, a bearing case having a center bearing bracket 4 having a substantially L-shaped cross section and fixed to a cross member in a vertical portion 4A, and a bearing 5 pivotally supporting the propeller shaft 1. 6, a rubber cushion 7 attached to the periphery of the bearing case 6, and a flange portion 8A formed in a substantially U shape at both ends and fixed to the horizontal portion 4B of the bracket 4 so that the distance between the horizontal portion 4B and the horizontal portion 4B is fixed. And a retainer 8 which holds the bearing case 6 via the rubber cushion 7, and a propeller shaft support device for supporting the intermediate portion of the propeller shaft 1 is provided (Japanese Utility Model Laid-Open No. 1-123934 and Japanese Utility Model Laid-Open No. 123934). No. 62-137125).

[0003]

[Problems to be solved by the device]

 By the way, in the above support structure, since the propeller shaft 1 that extends obliquely from the front to the rear in a different manner has a different inclination angle, the center bearing bracket 4 is set according to the inclination angle of the propeller shaft 1. There is a need. However, in the prior art, in order to share the center bearing bracket 4 as much as possible, the slight difference θ in inclination angle of the propeller shaft 1 is absorbed by bending the rubber cushion 7 forcibly. There is.

As a result, there is a problem in that the rubber cushion 7 is subjected to an unreasonable deformation stress and its life is shortened. Therefore, the present invention has been made in view of the above, and an object thereof is to easily share a center bearing bracket without forcibly bending the rubber cushion.

[0005]

[Means for Solving the Problems]

 The propeller shaft support device of the present invention comprises a bracket member fixed to the vehicle body frame side in a vertical portion having a substantially L-shaped cross section, a bearing case having a bearing for axially supporting the propeller shaft, and a periphery of the bearing case. A retainer for holding the bearing case between the rubber cushion and the horizontal portion of the bracket member, which is formed in a substantially U shape and is fixed to the horizontal portion of the bracket member. In the propeller shaft support device that supports the middle portion of the propeller shaft, a cylindrical collar is interposed in a portion surrounding the bearing case of the rubber cushion, and a contact surface between the rubber cushion and the collar is formed. Was formed into a spherical shape.

[0006]

[Action]

 By making the contact surface between the rubber cushion and the collar a spherical shape, it is possible to attach the rubber cushion freely and freely with respect to the collar, and simply change the inclination of the rubber cushion according to the inclination angle of the propeller shaft. This makes it possible to mount propeller shafts with different inclinations. Therefore, the same shape center bearing bracket can support propeller shafts with different inclinations without forcibly bending the rubber cushion, and the bracket can be shared and the life of the rubber cushion can be improved.

[0007]

【Example】

 1, the same elements as those in FIG. 4 are designated by the same reference numerals. That is, in the figure, the support device for the propeller shaft 1 is composed of a center bearing bracket 4, a rubber cushion 7, and a retainer 8, and the structure for supporting the intermediate portion of the propeller shaft 1 is the same as the conventional structure.

Here, what is different from the conventional one is that a cylindrical collar 9 is interposed in a portion surrounding the bearing case 6 of the rubber cushion 7. In this case, the rubber cushion 7 has a cylindrical inner rubber cushion 7A interposed between the bearing case 6 and the collar 9, and a substantially cylindrical shape interposed between the outer peripheral side of the collar 9 and the retainer 8 side. Outer rubber cushion 7B.

The contact surfaces of the inner rubber cushion 7A and the collar 9 are formed into a spherical shape. According to this structure, by making the contact surface between the inner rubber cushion 7A and the collar 9 spherical, it becomes possible to attach the inner rubber cushion 7A to the collar 9 freely and freely, as shown in FIG. As described above, by simply changing the inclination of the inner rubber cushion 7A according to the inclination angle of the propeller shaft 1, it is possible to absorb a slight inclination difference θ ° of the propeller shaft 1 and to attach the propeller shaft 1 having different inclination angles. ..

Therefore, unlike the conventional case, the propeller shafts 1 having different inclination angles can be supported by the center bearing bracket 4 having the same shape without forcibly bending the rubber cushion, and the bracket 4 can be commonly used. The life of can be improved. The present invention is not limited to the configuration of the embodiment, and various modifications can be made based on the scope of the utility model registration request.

[0011]

[Effect of the device]

 As described above, the present invention includes a bracket member fixed to the vehicle body frame side, a bearing case having a bearing for pivotally supporting a propeller shaft, a rubber cushion mounted around the bearing case, and a rubber cushion. In a propeller shaft support device that consists of a retainer that holds the bearing case through it, a cylindrical collar is interposed around the bearing case of the rubber cushion, and the contact surfaces of the rubber cushion and the collar are made spherical. Since it is formed, it is possible to attach the rubber cushion to the collar freely and freely, which allows the bracket to be shared and the life of the rubber cushion to be extended.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a propeller shaft support device according to the present invention.

FIG. 2 is a sectional view for explaining the operation of the above embodiment.

FIG. 3 is a side view showing a propeller shaft support structure in a vehicle.

FIG. 4 is a view showing an example of a conventional propeller shaft support device.

[Explanation of symbols]

 1 Propeller shaft 4 Center bearing bracket 6 Bearing case 7 Rubber cushion 7A Inner rubber cushion 7B Outer rubber cushion 8 Retainer 9 Color

Claims (1)

[Scope of utility model registration request] 1. A bracket member having a substantially L-shaped cross section and fixed to a vehicle body frame side in a vertical portion, and a bearing case having a bearing for supporting a propeller shaft.
By fixing the rubber cushion mounted around the bearing case and the substantially U-shaped flange portions at both ends to the horizontal portion of the bracket member, the bearing case is fixed between the horizontal portion and the horizontal portion via the rubber cushion. In a propeller shaft supporting device that supports a middle portion of a propeller shaft, which includes a retainer that is sandwiched, a cylindrical collar is interposed in a portion surrounding the bearing case of the rubber cushion, and a contact surface between the rubber cushion and the collar is provided. A propeller shaft support device having a spherical shape.