JPH0534403Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a structure for attaching a torsion bar anchor at a portion where one end of the torsion bar is attached to a suspension component and the other end of the torsion bar engages with a vehicle body.

(Prior art) Automobile suspensions have various configurations, one of which is the 61st Utility Model.
As shown in Japanese Patent No. 24207, there is a device using a torsion bar as a spring member. This torsion bar utilizes the torsional elasticity of a rod-shaped member made of steel. One end of the torsion bar is fixed to an arm member, etc. that makes up the suspension that is swingably attached to the vehicle body, and the other end is attached to an anchor. It is used by being attached to a vehicle body member via an arm, and its torsional elasticity provides a spring action in the suspension.

The anchor arm is rotatably attached to the vehicle body, and an anchor swivel rotatably engages in a notch recess provided at the pivot end of the anchor arm, and a hole provided in the anchor swivel An anchor bolt supported at one end on the side is engaged;
This anchor bolt prevents the anchor arm from rotating. Since this anchor swivel can be rotated by the anchor arm, when passing the anchor bolt through a hole in the anchor arm, it is necessary to make the direction of the hole so that the anchor bolt can be inserted. Therefore, the attachment position of the anchor arm needs to be set at a position where the anchor swivel can be held by the attachment worker, resulting in a problem that the degree of freedom in terms of layout is small.

(Purpose of the invention) The present invention was devised in view of these conventional problems, and its purpose is to increase the degree of freedom in setting by making it possible to insert the anchor bolt into the anchor swivel regardless of the installation position of the anchor arm. do.

(Structure of the invention) In order to achieve the above object, the present invention includes a torsion bar to which one end of a suspension arm that rotates around a rotation axis extending in the longitudinal direction of the vehicle body is fixed, and a torsion bar fixed to the other end of the torsion bar, An anchor arm that is rotatable about the axis of the torsion bar as a rotation axis, an anchor swivel that is rotatably supported in a notch recess provided in the anchor arm, and rotation of the anchor arm from the vehicle body side. an anchor bolt extending in the direction and screwed into a screw hole provided in the anchor swivel to restrict rotation of the anchor arm, and the anchor bolt is inserted into the anchor arm when the anchor bolt is screwed. A leaf spring having a notch is attached to the anchor swivel in a position that covers the notch, and the anchor swivel is provided with a plate spring so as to keep the screw hole in a direction corresponding to the insertion direction of the anchor bolt when the anchor bolt is not screwed into the anchor swivel. A flat surface portion is formed at the position where it comes into contact with the leaf spring.

(Effects of the invention) The torsion bar anchor of this invention has a plate spring attached to the anchor arm, and the anchor swivel has a flat surface part formed at the position where it comes into contact with the plate spring. is always oriented in a predetermined direction, and there is no need for the operator to hold it by hand, improving work efficiency. Furthermore, since there is no need to grasp the anchor arm by hand, it becomes possible to arrange the anchor arm in a narrow space, and the degree of freedom in terms of layout can be increased.

(Example) Examples of the present invention will be described below.

FIG. 2 is an overall schematic diagram of an automobile suspension according to the present invention. In FIG. 2, a double wishbone type suspension is used, and this suspension connects a lower arm 1 and an upper arm 2, which are swingably supported by a vehicle body component (not shown), and a lower arm 1 and an upper arm 2. The torsion bar 4 includes a knuckle 3 and a torsion bar 4. One end of the torsion bar 4 is fixed to the lower arm 1 and extends in the longitudinal direction of the vehicle body, and the other end is located below the cross member 6 with an anchor arm 5 fixed thereto.

The anchor arm 5 has a rotation shaft 5a as shown in FIG. 1, and the rotation shaft 5a is rotated into an arcuate recess 7a of an anchor holding bracket 7 attached to a cross member 6 shown in FIG. are movably fitted. On the other hand, a notch recess 5b is formed in the pivoting end of the anchor arm 5, and the anchor swivel 8 is rotatably engaged therein. A screw hole 8a is formed in the anchor swivel 8 and is engaged with an anchor bolt 9 extending from the vehicle body side. The other end of the anchor bolt 9 is engaged with a holder 10 attached to the anchor holding bracket 7 via a swivel 11. A plate spring 13 is arranged on the anchor arm 5 near the center of rotation with a screw 12 and extends toward the rotation end, and the plate spring 13 has a cutout hole (notch) 1 through which the anchor bolt 9 is inserted.
3a is formed, and a flat surface portion 8b is formed at a predetermined position of the anchor swivel 8. This leaf spring 13 comes into contact with the flat surface portion 8b of the anchor swivel, and as shown in FIG.
is designed to be held in a predetermined direction.

Next, the actual installation state will be explained. FIG. 3 shows a state in which the anchor bolt 9 has started to be screwed into the anchor swivel 8, and the leaf spring 12 presses the flat surface portion 8b of the anchor swivel 8, and the screw hole 8a faces in a certain direction with respect to the anchor arm 5. . Therefore, as in the present embodiment shown in FIG. 5, the anchor arm 5 is disposed inside the cross member 6 which is closed on the top surface, and the anchor bolt can be easily screwed in even when screwing in the anchor bolt by hand. .
FIG. 4 shows a state in which screwing is completed, and as the screw is screwed in, the anchor arm 5 rotates, and accordingly, the anchor swivel 8 rotates while being pressed by the leaf spring 13 within the notched recess of the anchor arm. , prevents rattling when screwed in.

In the embodiments described above, the anchor arm is placed inside the cross member, but by adopting the configuration of the present invention, the anchor swivel can be placed in a place where it is impossible for a worker to grab it, such as inside another vehicle body frame. It is also possible to place

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of the present invention, Fig. 2 is a schematic perspective view of an automobile suspension in which the present invention is adopted, Fig. 3 is a sectional view taken along line A-A in Fig. 2, Figure 4 is a sectional view taken along line A-A in Figure 2, showing the state before tightening of the anchor bolt;
The figure is a sectional view taken along the line B-C-D-E in FIG. 3. 1, 2... Suspension arm, 4... Torsion bar, 5... Anchor arm, 8... Anchor swivel, 8a... Flat surface portion, 9... Anchor bolt, 13... Leaf spring, 13a... Notch part ( cutout hole).

Claims (1)

[Scope of utility model registration request] A torsion bar has one end fixed to a suspension arm that rotates around a rotation axis extending in the longitudinal direction of the vehicle body, and a torsion bar that is fixed to the other end of the torsion bar and can rotate around the axis of the torsion bar as the rotation axis. an anchor arm, an anchor swivel rotatably supported in a cutout recess provided in the anchor arm, and a screw hole extending from the vehicle body side in the rotational direction of the anchor arm and provided in the anchor swivel. and an anchor bolt that is screwed together to restrict rotation of the anchor arm, and when the anchor bolt is screwed into the anchor arm,
A leaf spring having a notch through which the anchor bolt is inserted is installed in a position covering the notch recess, and the anchor swivel has a screw hole in a direction corresponding to the direction in which the anchor bolt is inserted when the anchor bolt is not screwed. A torsion bar anchor for an automobile, characterized in that a flat surface portion is formed at a position where it comes into contact with a leaf spring so as to keep the torsion bar anchor in place.