JPS59153664A - Cabin mount for vehicle - Google Patents

Abstract

PURPOSE:To improve the feeling of ride, by providing the front and rear portions of an elastic member with holes having a slender cross section and extending in the direction of the width of a vehicle, to reduce the shock in the longitudinal and vertical directions of the vehicle and the swing in its transverse direction. CONSTITUTION:A pair of holes 24, which have a slender cross section and extend in the transverse direction of a vehicle, are provided in the front and rear portions of an elastic member 16 so that the holes are located at both the sides of the cylindrical part 12b of an inner cylindrical member 12. The tops of the front and rear portions of the elastic member 16 are made stepwise lower than that of its central part. When a longitudinal force is received by a cabin on a cabin mount fitted with the elastic member 16, the member is hardly compressed but undergoes a shearing deformation in the main in the side portions, because of the holes 24. When a vertical force is received by the cabin, the inner cylindrical member 12 and an outer cylindrical member 14 are vertically translated relative to each other so that the elastic member 16 undergoes a shearing deformation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cabin mount that elastically supports a cabin on a vehicle body frame to alleviate shocks received by the vehicle.

BACKGROUND TECHNOLOGY Conventionally, in the body structure of trucks and other vehicles, in order to alleviate the impact that the vehicle receives due to various causes such as road surface irregularities,
It is known to attach a cabin to a vehicle body frame via a resilient member or cabin mount. but,
Since this conventional structure simply interposes an elastic member between the cabin and the vehicle body frame, forces in the longitudinal and lateral directions of the vehicle are handled by external forces with a small elastic modulus, and in the vertical direction. As for force, the support has compressive elasticity with a large elastic modulus. Therefore, there is a problem in that the lateral vibration is large, the riding comfort is poor, and the running stability is lacking.

In Japanese Utility Model Publication No. 32-27-67, a member is provided to restrain the elastic member, so that the receiver is compressed and elastic against any force in the front-rear direction, left-right direction, and vertical direction of the vehicle width. Furthermore, a cabin mount has been disclosed in which the elastic characteristics are made non-linear by changing the contact area with the restraining member in response to the vertical force. The product described in this publication has elastic properties that are relatively hard in all of the above directions, so it is possible to reduce vibrations in the left-right direction of the vehicle width, but it is also uniformly hard in the front-rear direction. Therefore, a problem arises in that the effect of mitigating the impact in this direction is weakened and the riding comfort worsens. There is also the problem that the structure becomes a number of items.

OBJECTS OF THE INVENTION An object of the present invention is to provide a cabin mount capable of sufficiently alleviating all impacts in the longitudinal and vertical directions of a vehicle, as well as improving riding comfort by reducing lateral shaking.

Structure of the Invention An uninvented structure is a cabin mount that digitally supports a cabin on a vehicle body frame, and the cabin mount is disposed between a cylindrical member, an outer cylinder member, and the inner cylinder member and the outer cylinder member. an elastic member, the elastic member having an inner wall surface of the outer cylindrical member and an outer side f11 of the cylindrical member. The vehicle is characterized in that long parts connected to the wall surface and extending in the width direction of the vehicle are provided at the front and rear sides, sandwiching a cylindrical member.

Effects of the Invention In the cabin mount of the present invention, the elastic member is provided with an elongated portion extending in the width direction of the vehicle at the front and rear portions, so when the vehicle receives a force in the longitudinal direction, the elastic member receives no compressive force. The force in the longitudinal direction is received mainly by shear force or other stress generated in the elastic members on both sides of the inner cylinder that sandwich the inner cylinder member. Therefore, the elasticity in the front-rear direction is soft, and the impact in this direction can be alleviated. Regarding the force in the vertical direction, since the outer cylinder member and the P'3 cylinder member move parallel to each other, the elastic member inserted therebetween receives shearing force from the outer cylinder member and the cylindrical member and forms a diamond shape. Therefore, in this case too,
The elastic properties are soft and can sufficiently cushion all vertical impacts.

fc-) When receiving a force in the width direction of the vehicle, that is, in the left-right direction, the outer cylindrical member and the cylindrical member move in the left-right radial direction, but since the elastic member is not extended in the left-right direction, , the elastic member is subjected to a compressive force. Therefore,
The elastic properties in the left and right direction become stiffer, and it is possible to reduce the left and right shaking of the vehicle. As described above, by controlling the elasticity % 'kW' in each direction, riding comfort can be improved and running stability can be increased. In addition, the structure of the cabin mount of the present invention is based on actual construction! f; It is simpler than the one described in 2-277 Otsu/No.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

- Referring to FIG. 1, a vehicle cabin mount 10 according to the invention is shown in plan view. The eye cabin mount 10 includes an inner cylinder member 12 and an outer cylinder member 14 disposed coaxially with the inner cylinder member 12, and a rubber or the like between the inner cylinder member 12 and the outer cylinder member 14. Elastic members 16 are inserted and adhered to the inner cylinder member 12 and the outer cylinder member 14, respectively. Referring also to FIG. 2, the cylindrical member 12 includes an upper flange 12a extending outward from the upper end of the cylindrical portion 12b to which the elastic member 16 is bonded, and a bottom 112c continuous with the lower end of the cylindrical portion 12b. dish-shaped with a bottom 1°2
A bolt hole 18 is provided in the center of C. As shown in FIG. 1, the upper flange 12a extends in the left-right direction of the vehicle body (in the direction of the Y-Y cross section in FIG. 1), and forms a stopper 4-f against deformation of the mount 10 in the vertical direction. As shown in FIG. 3, the outer cylinder member 14 has a cylindrical part 14a to which the elastic member 16 is attached, and a bottom part 14b extending inward from the lower end of the cylindrical part 14a at a position in the longitudinal direction of the vehicle body. bottom 1
4b is fixed to the vehicle body frame by a port 22. The elastic member 16 is provided with a pair of elongated holes 24 which are sharpened in the left-right direction at the front and rear sides of the elastic member 16, sandwiching the cylindrical portion 12b' of the inner cylinder member 12. On the outside of the elongated holes 24 in the longitudinal direction of the vehicle body, 16, the top surface is nine steps lower than the inner part.

Seven examples of cases where the cabin mount having the above structure is attached to an axle will be described.

Referring to FIG. 9, a dish-shaped platen 30 with a bolt hole 28 in the center is attached to the lower surface of the floor part 26 of the cabin. A hole 36 is drilled in a bracket 34 attached to 32. When installing the cabin mount 10, the bottom of the inner cylinder member 12 is aligned with the bottom of the bracket 34 and overlapped.

Furthermore, a stopper member 40 with a protruding center and a bolt hole 38 at the center and a '1iIP note member 39 arranged on the upper surface of the periphery is attached to the vehicle body side bracket 340'.
6 from below, overlap the bottom of the inner cylinder member 12, and align the bolt holes 18, 28, and 38. in this case,
The bolt holes are positioned and aligned so that the protrusion 41 of the stopper member 40 fits into the hole 20 (the hole 20 also serves as a drain hole) provided in the left-right direction of the inner cylinder member 12. Pass the bolt 42 all the way through, place a washer 44 on the underside of the strut arm part 40, and tighten the nuts 46, 48, and 50 to completely fix the cabin mount 10. Further, the outer cylinder member 14 is fixed to the bracket 34 by bolts 22.

When the cabin mount 10 attached in this manner is subjected to a force in the longitudinal direction, the elastic member 16 is hardly compressed because of the elongated hole 24, and is mainly sheared and deformed on both sides. Also, when subjected to vertical force,
Since the inner circumferential member 12 and the outer cylindrical member 14 move parallel to each other (in the vertical direction, the elastic member 16 is sheared in the same way.If the inner circumferential member 12 and the outer cylindrical member 14 are subjected to a horizontal force of 7'C%, the inner cylindrical member 12 and the outer cylindrical member 14 When the outer cylinder member 14 moves in the radial direction, the rainbow elastic member is compressively deformed on both sides.

Therefore, the cabin mount 10 of this example has a custom-made characteristic that is soft against forces in the longitudinal and up-down directions, and hard and elastic against forces in the left-right directions.

As a result, it is possible to reduce the impact force in the longitudinal and vertical directions, as well as reduce the shaking in the horizontal direction.
Riding comfort can be improved, and running stability can also be increased.

Note that when the shaking in the vertical separation direction is large, the stopper member 40 can elastically support and suppress the shaking.

[Brief explanation of the drawing]

1 is a plan view of a cabin mount according to an embodiment of the present invention; FIG. 2 is a cross-sectional view taken along Y-Y in FIG. 1;
FIG. 9 is a cross-sectional view taken along the line xx in the figure, and FIG. 9 is a cross-sectional view showing the state in which the cabin mount of FIG. 1 is attached. Explanation of symbols 10...Vehicle cabin mount, 12...Cylindrical member, 14...Outer cylinder member, 16...Elastic member, 24...
...Long hole, 40...Stotsuno 4 part lol. Patent applicant: Toyo Koka Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] Cabin\il - A cabin mount elastically supported on a vehicle body frame, the cabin mount having an inner cylinder member,
an outer cylindrical member; and an elastic member disposed between the cylindrical member and the outer cylindrical member; 1. A cabin mount for an axle, characterized in that elongated portions extending in the width direction of a vehicle are provided at the front and rear portions, sandwiching the cylindrical member.