JP6512808B2 - Knuckle bracket for suspension device and suspension device - Google Patents

Description

  The present invention relates to a suspension device of a vehicle and a component (knuckle bracket) used for the suspension device.

  A widely used independent suspension type suspension system for vehicles uses a shock absorber with an upper mount mounted on the vehicle body with a coil spring outside and a knuckle bracket (strut shell case) connected with the wheel side (knuckle) at the lower end It is provided.

  The suspension device described above has a different length so that the suspension device mounted on the existing vehicle can be removed to obtain a vehicle having a desired height in order to make the vehicle height the height desired by the user. Parts are sold.

  Further, as a means for adjusting the vehicle height, there is also known a means for adjusting the vehicle height by screwing a screw on the outer periphery of the lower end of the shock absorber and screwing and mounting a knuckle bracket (Patent Document 1).

  Furthermore, as a means for adjusting the camber angle, a suspension apparatus is known that incorporates the knuckle bracket pivotably attached to the lower end of the shock absorber and incorporates an adjusting screw for adjusting the knuckle bracket to a desired angle (Patent Literature 2).

JP, 2011-143886, A. Unexamined-Japanese-Patent No. 2001-39137.

  By the way, when the vehicle height is adjusted by employing the suspension device described in Patent Document 1 mentioned above, the camber angle slightly changes accordingly. Therefore, use of the vehicle affects the running performance and causes uneven wear of the tire.

  Further, even when a suspension device capable of obtaining a desired vehicle height is incorporated, so-called spallation occurs and the vehicle height changes due to the secular change due to the use of the vehicle, and the camber angle changes accordingly.

  For this reason, it is desirable to provide the suspension device with a camber angle adjustment function, but in the means for rotatably attaching the knuckle bracket described in Patent Document 2, it is necessary to largely change the entire knuckle bracket structure compared to the previous device. It is unfamiliar to the traders (vehicle users, parts manufacturers, maintenance workers), and there are also problems in terms of the complexity of the structure and the cost.

  Therefore, the present invention proposes a knuckle bracket having a camber angle adjusting function with a simple structure and an suspension device using the above-mentioned parts, while having the same appearance as the conventional device.

A knuckle bracket for a suspension device according to claim 1 of the present invention comprises a main body mounted on the lower end of a shock absorber, and an opposing plate-like bracket protruding from the side of the main body, and the upper and lower of the bracket mounting holes for hub connection is provided above and below the Rutotomoni, upper lower one of the mounting holes are formed in an arc-shaped long hole around the other mounting hole, at least opposite plate surfaces of the bracket portion A washer fitting portion is provided in a range including one long hole, and the circular eccentric washer through which the mounting bolt is mounted through an eccentric position can be moved in the radial direction centering on the other mounting hole. fitted to the fitting portion, Ri Na wearing the mounting bolt at a desired position within the elongated hole, the washer fitting portion, washer outer periphery when allowed to move up and down within a range corresponding to the eccentric position of the eccentric washer Provided in the shape of the trajectory Is obtained is characterized by the. Also, the knuckle bracket is in particular that the elongated hole has an upper attachment hole.

  A suspension apparatus according to the present invention is a shock absorber having an upper mount at its top and a coil spring externally, and a knuckle bracket connected to a wheel side at its lower end adopts the above-described components.

  The above suspension apparatus is connected to the vehicle body by the upper mount, and the knuckles (also referred to as "hubs") on the wheel side to which the upper and lower mounting holes pass through are connected to the bracket portion of the knuckle bracket. It is. Since the camber angle is determined by determining the mounting bolt position in any of the upper and lower mounting holes when connecting the wheel side hub, the knuckle can be fixed by mounting the mounting bolt at the desired position. It can be connected at an appropriate camber angle. However, since the relevant portion is subjected to vibration when the vehicle travels, even if the bolt shaft is positioned in the long hole simply by tightening the bolt and nut, the bolt shaft may be deviated from the position and the camber angle may be changed. is there.

  However, according to the present invention, the eccentric washer is mounted on the washer fitting portion in which the mounting bolt (upper bolt) is movable only in the radial direction (that is, the vertical direction) centering on the other mounting hole (lower mounting hole). Since it is mounted, the washer prevents movement in the long hole of the mounting bolt (upper bolt). Therefore, even if the vehicle travels vibration, the mounting bolt (upper bolt) position does not change and the camber angle does not change, so that the vehicle can travel safely.

  The configuration of the present invention is as described above, and the knuckle bracket for the suspension device has a simple structure and can adjust the name camber angle, against the change of the vehicle height due to the adjustment of the vehicle height and the secular change, The camber angle is easily adjusted to improve the running performance and to prevent the uneven wear of the tire and the deterioration of the running performance (eco running function).

BRIEF DESCRIPTION OF THE DRAWINGS The whole perspective view which shows embodiment (suspension apparatus) of this invention. The expansion perspective view of the principal part (knuckle bracket). Explanatory drawing of the use condition. The perspective view of the upper bolt and eccentric washer member. Explanatory drawing of the same camber angle adjustment function.

  Next, an embodiment of the present invention will be described. The suspension system of the independent suspension type has the coil absorber 2 outside the shock absorber 1, and the upper portion of the shock absorber 1 is provided with an upper mount 3 for attachment to the vehicle body. The knuckle bracket 4 to connect is provided.

  The knuckle bracket 4 includes a cylindrical main body 41 attached to the lower end of the shock absorber 1 and a bracket 42 serving as a connection portion with the knuckle 5.

  The main body portion 41 is provided with a screw portion 411 engaged with a screw portion formed on the outer periphery of the lower end of the shock absorber 1 on the inner peripheral surface, and the bracket portion 42 has two opposing plate shapes on the outer peripheral side surface of the main body portion 41 It is provided in the

The bracket portion 42 is provided with mounting holes 421a and 421b through which the mounting bolts 43a and 43b are mounted through at the top and bottom, the lower mounting hole 421b is a normal circular hole, and the upper mounting hole 421a is a lower mounting hole 421b. It is formed in the long hole of the circular arc shape (horizontal direction) centering on.
Although the upper mounting hole 421a is formed as a long hole in this embodiment, it is theoretically possible to use the lower mounting hole 421b as a long hole, but in consideration of the assembling property, the upper mounting hole 421a is long. Holes are preferred.

  Furthermore, a washer fitting portion 423 is provided around the lower attachment hole 421a, which is an elongated hole, so that the eccentric washer 422 can move only in the radial direction (vertical direction) centering on the lower attachment hole 421b. That is, the washer fitting portion 423 has a shape of a washer outer peripheral locus when moving the eccentric washer 422 up and down in a range corresponding to an eccentric position described later. The illustrated example is an example in which the eccentric washer 422 is circular, and it is not necessarily limited to a perfect circular shape.

  Although the upper bolt 43a is inserted at the eccentric position of the eccentric washer 422, the insertion means is optional, but both may be integrally formed as shown in FIG. Further, as a means for forming the washer fitting portion 423, a method may be adopted in which a part of the bracket portion 42 is cut out and a member provided with a separately formed recess 423 is welded to the cutout portion. If the joint portion 423 is formed by a shallow recess provided on the opposite plate surface of the bracket portion 42 and a peripheral wall 424 surrounding the recess provided by the welding, the eccentric washer 422 is not reduced in strength of the bracket portion 42. Can be reliably positioned within the washer fitting 423.

  The suspension device incorporating the knuckle bracket 4 is connected to the vehicle body by the upper mount 3 and the knuckles 5 on the wheel side are vertically bolted to the upper and lower mounting holes 421a and 421b of the bracket portion 42 of the knuckle bracket 4. 43a, 43b and tightening nuts 44a, 44b are used for connection.

  The camber angle of the wheel is determined by the fixed position of the upper bolt 43a in the upper mounting hole 421a which is a long hole when the knuckle 5 is connected. Therefore, the optimum camber angle is obtained by fixing the upper bolt 43a at the predetermined position with the tightening nut 44a.

  Particularly in consideration of the case where the upper bolt 43a moves in the long hole (in the upper attachment hole 421a) due to the vibration caused by the traveling of the vehicle, the present invention relates to the bolt shaft (upper bolt 43a) in the fitting of the eccentric washer 422 and the recess 423. And the vertical movement of the bolt shaft, that is, the vertical movement of the eccentric washer 422, is prevented at the upper and lower sides of the upper mounting hole 421a. As a result, the elongated upper mounting hole 421a It functions as a mounting hole for the hole and does not suffer from any hindrance.

  Therefore, when the suspension apparatus is incorporated as the apparatus during vehicle manufacture, and the suspension apparatus itself is affected by aging, it is possible to correct the camber angle, for example, when the tire is worn unevenly. Further, for the existing vehicle, the suspension apparatus of the present invention can be provided as a vehicle height adjustment product, or the knuckle bracket of the present invention can be provided as a component of the suspension apparatus.

Reference Signs List 1 shock absorber 2 coil spring 3 upper mount 4 knuckle bracket 41 main body 411 screw portion 42 bracket portion 421 a upper mounting hole 421 b lower mounting hole 422 eccentric washer 423 washer fitting portion 424 peripheral wall 43 a upper bolt (mounting bolt)
43b Lower bolt (mounting bolt)
44a, 44b Tightening nut 5 knuckle

Claims (10)

A body attached to the lower end of the shock absorber;
Facing plate-like bracket part which projects from the side surface of the main body portion,
Equipped with
Rutotomoni mounting holes for hub connection is provided above and below the top and bottom of the bracket portion, the upper lower one of the mounting holes are formed in an arc-shaped long hole around the other mounting hole,
A washer fitting portion is provided in a range including at least one long hole of the opposite plate surface of the bracket portion ,
A circular eccentric washer with a mounting bolt penetrated at the eccentric position is mounted in the washer fitting so as to be movable in the radial direction centering on the other mounting hole , and mounted at a desired position in the elongated hole A knuckle bracket for a suspension device to which a bolt is attached ,
The knuckle bracket for a suspension device , wherein the washer fitting portion is provided in a shape of a washer outer peripheral locus when moving the eccentric washer up and down in a range corresponding to an eccentric position . In the washer fitting portion, when the mounting bolt is positioned at an end in the long hole, the eccentric washer is positioned at one end of the washer fitting portion, and the mounting bolt is in the center of the long hole. The knuckle bracket for a suspension device according to claim 1, wherein the eccentric washer is provided so as to be located at the other end of the washer fitting portion when it is located at a portion. The knuckle bracket for a suspension device according to claim 1 or 2, wherein the upper mounting hole is a long hole. The knuckle bracket for a suspension device according to any one of claims 1 to 3 , wherein the washer fitting portion is formed by a shallow recessed portion provided on a plate surface facing the bracket portion and a peripheral wall surrounding the recessed portion. The knuckle bracket for a suspension device according to any one of claims 1 to 4, wherein a screw portion screwed to a screw portion formed on an outer periphery of a lower end of the shock absorber is provided on an inner peripheral surface of the main body portion. The knuckle bracket for a suspension device according to any one of claims 1 to 5, wherein the eccentric washer is integrally formed with the upper bolt. In a suspension apparatus in which a shock absorber provided with an upper mount at the top is provided with a coil spring and a knuckle bracket provided at the lower end and connected to the wheel side is:
The knuckle bracket is
A body attached to the lower end of the shock absorber;
Facing plate-like bracket part which projects from the side surface of the main body portion,
Equipped with
Upper and lower mounting holes for hub connection are provided at the upper and lower sides of the bracket portion, and any upper and lower mounting holes are formed in an arc-shaped elongated hole centered on the other mounting hole,
A washer fitting portion is provided in a range including at least one long hole of the opposite plate surface of the bracket portion ,
A circular eccentric washer with a mounting bolt penetrated at the eccentric position is mounted in the washer fitting so as to be movable in the radial direction centering on the other mounting hole, and at a desired position in the elongated hole A suspension device to which mounting bolts are attached,
The said washer fitting part was provided in the shape of the washer outer periphery locus | trajectory when moving the said eccentric washer up and down in the range corresponding to an eccentric position, The suspension apparatus characterized by the above-mentioned. In the washer fitting portion, when the mounting bolt is positioned at an end in the long hole, the eccentric washer is positioned at one end of the washer fitting portion, and the mounting bolt is in the center of the long hole. The suspension device according to claim 7, characterized in that the eccentric washer is provided so as to be located at the other end of the washer fitting portion when it is located at a part. The suspension device according to claim 7 or 8, wherein the upper mounting hole is a long hole. The suspension device according to any one of claims 7 to 9 , wherein the washer fitting portion is formed by a shallow recess provided on a plate surface facing the bracket portion and a peripheral wall surrounding the recess.

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