KR101711372B1

KR101711372B1 - Knucle assembly structure

Info

Publication number: KR101711372B1
Application number: KR1020150092865A
Authority: KR
Inventors: 김현수
Original assignee: 주식회사 센트랄
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2017-03-02
Also published as: KR20170002923A

Abstract

The knuckle assembly includes a knuckle (10), a coupling hole (20) formed in the knuckle (10), and an insert (20) penetrating between the coupling hole (20) and a bottom surface portion of the knuckle A coupling hole 30 formed at a position facing the insertion hole 40 with the coupling hole 20 interposed therebetween and a knuckle 30 inserted into the coupling hole 20 to connect the arm, A bolt 60 inserted through the insertion hole 40 and fastened to the coupling hole 30 and rotatably fixing the knuckle joint 50 to the knuckle 10; The knuckle joint 50 may be provided on the knuckle 10 on one side of the side of the coupling hole 20 in a direction perpendicular to the direction in which the bolt 60 is inserted. And a slit portion 70 for adjusting the torque of the motor.

Description

[0001] Knuckle assembly structure [

The present invention relates to a knuckle assembly structure, and more particularly, to a knuckle assembly structure that facilitates assembly and disassembly.

Generally, knuckles used in automobiles are used for steering devices and suspension devices, and they are manufactured in various shapes depending on the type of vehicle, the suspension system, and the steering system.

An example of a knuckle used in a steering apparatus is disclosed in Patent Document 10-0748762 (registered on Aug. 6, 2007, a ball joint structure between an automotive lower arm and a steering knuckle), which knuckle is connected to a lower arm by a ball joint.

Another example of a knuckle used in such a steering apparatus is a structure having a knuckle joint so that it can be coupled to an opponent arm. Such a conventional knuckle assembly structure will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of a conventional knuckle, FIG. 2 is a perspective view showing a state where a knuckle joint is coupled to a conventional knuckle, FIG. 3 is a perspective view showing a state in which a king pin is engaged, .

1 to 4, the conventional knuckle assembly structure includes a coupling hole 2 formed on the lower side of the knuckle 1, and an insertion hole 2 which penetrates between the coupling hole 2 and the bottom portion of the knuckle 1, (3) formed at a position facing the insertion hole (4) with the coupling hole (2) interposed therebetween, and an arm (not shown) inserted into the coupling hole (2) A knuckle joint 6 inserted through the insertion hole 4 and press-fitted into the coupling hole 3 to fix the knuckle joint 6 rotatably with respect to the knuckle 1; (7).

Hereinafter, the structure and operation of the conventional knuckle coupling structure constructed as described above, and the problems caused by the structure and operation thereof will be described in detail.

First, the structure of the knuckle 1 has various shapes according to the design as described above, and a coupling hole 2 penetrating the front side and the back side is formed on the lower side based on the installation state of the knuckle 1 .

A knuckle joint (6) capable of connecting the knuckle (1) and the arm is inserted into the coupling hole (2).

The coupling member 2 provides a space in which the knuckle joint 6 can rotate within a predetermined range around a king pin 7 to be described later, The ball 4 and the coupling hole 3 are provided.

The insertion hole 4 is connected to the coupling hole 2 on the outside of the knuckle 1 and the coupling hole 3 is formed on the knuckle 1 opposite to the coupling hole 2.

The insertion hole 4 and the coupling hole 3 are not threaded, and the king pin 7 is press-fitted and fixed.

The shape of the kingpin 7 is largely divided into a head portion 14 and shaft portions 11, 12 and 13. The shaft portion is provided with a nulling portion 11 at a central portion thereof and an end thereof is press- The first polishing portion 12 is located and the second polishing portion 13 located in the insertion hole 4 is located.

The head portion 14 is in contact with a part of the bottom surface of the knuckle 1 positioned in the outer direction of the coupling hole 2 to prevent the push-in from proceeding further. And the bolts 15 are fastened and fixed to the fastening holes 9 and 5 in a state in which the shaft portions 11, 12 and 13 of the king pin 7 are press-fitted into the fastening holes 9 and 5, respectively, do.

And a tab stop 8 provided at a predetermined depth inward from a part of the outer surface of the head 14 corresponding to the center of rotation of the shaft portions 11, 12 and 13.

The knuckle joint 6 can be firmly fixed to the knuckle 1 by means of the king pin 7. However, when it is necessary to remove the king pin 7 for replacement of parts or maintenance of the vehicle, (7) is press-fitted, the separation is not very easy.

The first grinding portion 12 and the second grinding portion 13 are engaged with the engaging hole 3 and the inserting hole 13 in order to separate the king pin 7 by rotating the tool while the tool is engaged. (4), it is difficult to separate them by rotating them.

Since the knuckle 1 and the kingpin 7 themselves have a relatively complicated structure as well as the difficulty of such a disassembly and the bolts 15 must be used to fix the knuckle 1 and the kingpin 7 themselves, There was a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a knuckle assembly structure which can be easily disassembled for service.

It is also an object of the present invention to provide a knuckle assembly structure that can simplify the structure and reduce the number of parts.

In order to achieve the above object, the present invention provides a knuckle assembly structure including a knuckle, a coupling hole formed in the knuckle, and a coupling hole formed between the coupling hole and the bottom of the knuckle, (30) formed at a position facing the insertion hole (40) with the coupling hole (20) interposed therebetween; an insertion hole (40) inserted into the coupling hole (20) A knuckle joint 50 inserted through the insertion hole 40 and fastened to the coupling hole 30 so that the knuckle joint 50 is rotatably fixed to the knuckle 10, And the knuckle 10 is provided at one side of the side of the coupling opening 20 in a direction perpendicular to the direction in which the bolt 60 is inserted, And a slit portion 70 for adjusting the torque of the joint 50.

The slit portion 10 may be formed on a lower side than a side center of the coupling hole 20.

And an interval adjusting bolt 80 for adjusting the interval of the slit portions 70.

The bolt 60 is composed of a head portion 61 and a shaft portion 62. The shaft portion 62 may be formed with a threaded portion 63 only at a portion to be inserted into the coupling hole 30. [

The knuckle assembly structure of the present invention has the effect of facilitating assembly and disassembly by changing the state of the king pin from the press-fit type to the fastening type.

Further, the present invention has the effect of reducing the manufacturing cost and the work time by reducing the number of parts and simplifying the structure.

1 is a front view of a conventional knuckle.
2 is a partial perspective view of a conventional knuckle with a knuckle joint coupled thereto;
FIG. 3 is a partial perspective view of a state in which a king pin is coupled.
Fig. 4 is a configuration diagram of the king pin 7. Fig.
5 is a front view of a knuckle applied to a preferred embodiment of the present invention.
6 is a schematic diagram for explaining a preferred embodiment of the present invention.
7 is a schematic diagram for explaining another embodiment of the present invention.

Hereinafter, a knuckle assembly structure according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a front view of a knuckle according to the present invention, and FIG. 6 is a schematic view for explaining a knuckle assembly structure according to a preferred embodiment of the present invention.

Referring to FIGS. 5 and 6, the knuckle assembly structure according to the preferred embodiment of the present invention includes a knuckle 10, a coupling 20 formed in the knuckle 10, An insertion hole 40 penetrating between the bottom portions of the knuckle 10 and a coupling hole 30 formed at a position facing the insertion hole 40 with the coupling hole 20 interposed therebetween, A knuckle joint 50 inserted into the insertion hole 20 and capable of connecting an arm (not shown), and a knuckle joint 50 inserted through the insertion hole 40 and fastened to the coupling hole 30, A bolt 60 which is rotatably fixed to the knuckle 10 and a knuckle 10 provided on one side of the side of the coupling hole 20 in a direction perpendicular to the direction in which the bolt 60 is inserted And a slit part 70 for adjusting the torque of the knuckle joint 50 according to the degree of tightening of the bolt 60.

Hereinafter, the structure and operation of the knuckle assembly structure according to the preferred embodiment of the present invention will be described in detail.

First, the overall shape of the knuckle 10 can be variously determined according to the purpose and design of use, and a coupling hole 20 is formed through the front side and the back side of the lower side of the knuckle 10.

The coupling member 20 is provided with a space in which a knuckle joint 50 for coupling an arm, which is an object to be coupled, is inserted and fixed by the bolt 60.

An insertion hole 40 and a coupling hole 30 are formed so that the bolt 60 can pass through the coupling hole 20 and can be fastened.

The insertion hole 40 extends from the bottom surface of the knuckle 10 to the coupling hole 20 and the coupling hole 30 is formed in the knuckle 10 opposite to the coupling hole 20.

The insertion hole 40 is not formed with a thread, and the coupling hole 30 is formed with a thread.

The bolt 60 includes a head portion 61 and a shaft portion 62. A screw portion 63 is formed only at a portion of the shaft portion 62 that is inserted into the coupling hole 30 .

The bolt 60 has a head 61 having a plurality of angles and the head 61 is rotated using a general tool so that the screw 63 is fastened to the coupling hole 30, The joint 50 can be fixed.

The knuckle 10 is formed with a slit portion 70 extending from the side portion to the outside of the coupling hole 20. The width of the slit portion 70 is reduced by the fastening of the bolt 60, The resistance of the knuckle joint 50 can be adjusted by rotating the knuckle joint 50 according to the width of the knuckle joint 50.

That is, the torque of the knuckle joint 50 increases as the gap between the slit portions 70 becomes narrower. As the gap between the slit portions 70 becomes wider, the knuckle joint 50 can be easily rotated do.

Particularly, the position of the slit part 70 is not located in the center of the side surface of the coupling hole 20 but is located biased toward the lower side, The distance to the lower portion is shorter than the distance from the slit portion 70 to the upper portion of the coupling hole 20 where the coupling hole 30 is formed. The position of the slit portion 70 makes it easier to fasten the bolt 60.

The head portion 61 of the bolt 60 protrudes from the bottom portion of the knuckle 10 in which the insertion hole 40 is formed and thus the bolt 60 can be easily rotated by using a general tool, have.

That is, when the maintenance service such as repair or replacement of parts is required, the operator can easily separate the bolt 60, and the convenience of the work can be improved.

Further, the bolt 60 of the present invention replaces the conventional kingpin, which is simpler in structure than the conventional kingpin, and can be manufactured easily, and the manufacturing cost can be reduced.

7 is a schematic view illustrating a knuckle assembly structure according to another embodiment of the present invention.

Referring to FIG. 7, in the knuckle assembly structure according to another embodiment of the present invention, in the technical construction described with reference to FIGS. 5 and 6, a gap adjusting bolt 80 for adjusting the gap between the slit portions 70 .

The gap adjusting bolt 80 is inserted from the bottom of the knuckle 10 and passes through the slit portion 70 and is further fastened to the knuckle 10 opposite the slit portion 70. The gap adjusting bolt 80 is inserted into the slit portion 70 ) Can be adjusted.

This allows the bolt portion 60 and the gap adjusting bolt 80 to be rotated sequentially by a certain degree to be fastened.

In the present invention, the torque of the knuckle joint 50 can be adjusted by adjusting the interval between the slit portions 70. In the present invention, the knuckle joint 50 is provided with a knurling portion for imparting a constant frictional force (torque at the time of rotating the knuckle joint) .

As described above, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. And such modifications are within the scope of the present invention.

10: Knuckle 20:
30: engaging hole 40: inserting hole
50: Knuckle joint 60: Bolt
70: slit portion 80: interval adjusting bolt

Claims

A knuckle 10, a coupling 20 formed in the knuckle 10, an insertion hole 40 passing through between the coupling hole 20 and the bottom of the knuckle 10, A knuckle joint 50 formed at a position facing the insertion hole 40 with a through hole 20 therebetween and having an inner circumferential surface formed with a thread and a knuckle joint 50 inserted into the coupling hole 20 to connect the arm, A bolt 60 inserted through the insertion hole 40 and screwed to the coupling hole 30 and rotatably fixing the knuckle joint 50 to the knuckle 10, The knuckle 10 is provided at one side of the side of the coupling 20 in a direction perpendicular to the direction in which the bolt 60 is inserted. And a slit portion (70) for adjusting a torque of the knuckle joint (50) by adjusting a resistance value at a contact surface between the knuckle joint Back,
The bolt (60)
A head portion 61 and a shaft portion 62,
The head portion 61 protrudes from the bottom surface of the knuckle 10 in which the insertion hole 40 is formed,
Wherein the shaft portion (62) is formed with a threaded portion (63) corresponding to a thread formed on an inner surface of the coupling hole (30) only in a portion inserted into the coupling hole (30).

The method according to claim 1,
The slit portion (70)
Is formed on a lower side than the side center of the coupling hole (20).

The method according to claim 1,
And a gap adjusting bolt (80) for adjusting the gap of the slit part (70).

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