KR101654297B1 - Cowl cross member for anit-sway of gear housing, bracket unit of cowl cross member, mdps system assembly module - Google Patents

Cowl cross member for anit-sway of gear housing, bracket unit of cowl cross member, mdps system assembly module Download PDF

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Publication number
KR101654297B1
KR101654297B1 KR1020150046242A KR20150046242A KR101654297B1 KR 101654297 B1 KR101654297 B1 KR 101654297B1 KR 1020150046242 A KR1020150046242 A KR 1020150046242A KR 20150046242 A KR20150046242 A KR 20150046242A KR 101654297 B1 KR101654297 B1 KR 101654297B1
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KR
South Korea
Prior art keywords
gear housing
cross member
female
fastening bolt
screw portion
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KR1020150046242A
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Korean (ko)
Inventor
편해훈
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덕양산업 주식회사
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Priority to KR1020150046242A priority Critical patent/KR101654297B1/en
Application granted granted Critical
Publication of KR101654297B1 publication Critical patent/KR101654297B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/081—Cowls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/12—Production or manufacturing of vehicle parts
    • B60Y2410/125—Bounded parts

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

A bracket unit for a cow cross member having a gear housing anti-shake structure is disclosed. A bracket unit for a cowl cross member having a gear housing anti-shake structure according to the present invention includes: a coupling portion coupled to a cow cross member of a gear housing of an electric power steering and coupled to a cowl cross member; A first extension portion extending from the coupling portion such that the gear housing is interposed therebetween, the first extension portion being formed with a first female threaded portion; A second extension part formed with a second female threaded part whose threading direction is opposite to that of the first female threaded part; A pressing member having a male screw portion screwed with the first female screw portion on an outer circumferential surface thereof and a third female screw portion having a first female screw portion and a thread winding direction reverse to each other; And a fastening bolt which is threadably engaged with the second female threaded portion and the third female threaded portion and passes through the through hole formed in the gear housing between the first extended portion and the second extended portion, And the rotation and movement of the fastening bolt are restrained by the fastening bolt and the first female thread portion whose directions are opposite to each other in the state where the thread is wound in the state of being pressed toward the extension portion.

Description

TECHNICAL FIELD [0001] The present invention relates to a bracket unit for a cowl cross member having a gear housing swing prevention structure, a cowl cross member and an assembling module for an electric power steering system including a bracket unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bracket unit for a cowl cross member having a gear housing swing prevention structure, a cowl cross member and an electric power steering system assembly module, and more particularly, A bracket unit for a cowl cross member having a gear housing anti-swing structure capable of easily coupling a gear housing to a cowl cross member and using an existing cowl cross member as it is, a cow cross member and an electric power steering system assembling module .

Generally, a power steering system is divided into a method of using the hydraulic pressure of the oil and a method of using the power of the electric motor. Here, the hydraulic power steering system means that the hydraulic pump pumps the fluid by the force of the engine to form the hydraulic pressure, and the hydraulic pressure is transmitted to the driver in the steering direction when the driver turns the steering wheel so that the handling becomes light. The electric power steering system DRIVEN POWER STEERING SYSTEM (hereinafter referred to as "MDPS system") refers to a system that improves the steering performance by using an electric motor.

In the MDPS system, the electric motor is automatically controlled according to the driving conditions, and thus the steering performance and steering feeling can be improved as compared with the hydraulic power steering system.

The MDPS system is fixedly attached to one side of a COWL CROSS MEMBER mounted on a gear housing and fixed to both ends of the body, wherein the cowl cross member is provided between the engine room and the dash panel, And the dash panels forming the vehicle body are prevented from flowing into the passenger compartment, thereby improving the safety of the passenger.

In this regard, an electric power steering system assembly module is disclosed in Korean Patent Registration No. 1067944 filed by the applicant of the present invention, and Korean Patent Publication No. 1067944 discloses a cowl crossbar provided to mount a steering column, The cowl crossbar including a steering column support bracket provided to be able to mount the steering column, and a steering column support bracket coupled to the cowl crossbar in such a manner that when the gear housing is engaged, And a balance holding unit provided adjacent to the gear housing so as to prevent rotation of the gear housing.

The balance maintaining unit includes an insertion portion into which the engagement portion of the gear housing is inserted and a pair of support portions provided at both ends of the insertion portion. The support portion includes a support plate extending downward from one end of the insertion portion and a retaining protrusion bent so as to extend along one side of the support plate to support the lower end of the support surface.

The support plate has a plate-like configuration extending in the downward direction from both ends of the insertion portion, and a bolt hole is formed through the support plate so that bolts penetrating through the gear housing are inserted through the support plate.

However, since the conventional balance holding unit including the registered patent No. 1067944 is manufactured as a 'C' shaped bracket by press molding, it is difficult to press the 'C' shaped bracket at a press molding minus (1 degree) There is a problem that it is difficult to maintain straightness and flatness between the pair of support plates.

Therefore, after the press forming of the bracket, a restriking process is performed or the straightness and planarity between the pair of support plates are adjusted by using a pneumatic or hydraulic jig to ensure the inner dimension, And a plan view.

In the conventional balance holding unit including the No. 1067944, the gear housing is inserted into the space between the pair of support plates so that the gear housing can be easily fitted between the pair of support plates after the rectilinear work or straight adjustment using the jig, The tolerance is larger than the design dimension of the protrusion. If the clearance is not formed, the assembling can not proceed smoothly due to the manufacturing tolerances of the gear housing and the balancing unit, so formation of the clearance tolerance is essential.

However, the formation of the allowance tolerance causes a vibration of the gear housing when the steering wheel rotates during vehicle operation, thereby generating operating noise due to friction between the gear housing and the pair of support plates.

(0001) Korean Patent Publication No. 1067944 (Registered on September 20, 2011)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gear housing vibration preventing structure which can prevent vibration of a gear housing due to rotation of a steering wheel during vehicle operation and can easily engage a gear housing with a cowl cross member, A cow cross member, and an electric power steering system assembly module.

This object is achieved according to the present invention by providing a gear housing for an electric power steering which is coupled to a cowl cross member and coupled to the cowl cross member; A first extension portion extending from the coupling portion such that the gear housing is interposed therebetween and having a first female threaded portion; A second extension portion having a second female threaded portion that is opposite in thread winding direction to the first female threaded portion; A pressing member having an outer circumferential surface formed with a male screw portion to be screwed with the first female screw portion and having a third female screw portion on an inner circumferential surface thereof, the third female screw portion being opposite to the first female screw portion; And a fastening bolt threadedly engaged with the second female threaded portion and the third female threaded portion and passing through a through hole formed in the gear housing between the first extended portion and the second extended portion, And the rotation and movement of the gear housing are restrained by the first female screw and the fastening bolts whose directions are opposite to each other when the gear housing is pressed toward the second extension portion. Is achieved by the bracket unit for a cow cross member.

Wherein the fastening bolt is screwed to the third female threaded portion and then is screwed to the second female threaded portion and the urging member is urged by the head of the fastening bolt when the fastening bolt is screwed to the second internal threaded portion And is rotated and moved together with the fastening bolt.

And at least one of the male screw portion and the first female screw portion is elastically deformed when the pressing member is rotated and moved together with the fastening bolt.

The third female threaded portion is formed to be spaced apart from the male threaded portion in a direction in which the fastening bolt is threaded, and the male threaded portion is elastically deformed when the pressing member is rotated and moved together with the fastening bolt.

The pressing member may further include a pressing end portion formed at an end portion of the third female screw portion in a radial direction extending from the through hole.

The male screw portion is formed to be radially spaced from the third female screw portion, and the male screw portion is elastically bent and deformed toward the third female screw portion when the pressing member is rotated and moved together with the fastening bolt.

The pressing member may further include a pressure end portion formed in a shape extending radially from the through hole and the third female screw portion and the male screw portion being respectively engaged.

The male thread portion includes a first male thread portion and a second male thread portion spaced from each other in a circumferential direction.

The above object is achieved according to the present invention by a bracket for a cowl cross member unit; And a cowl cross member to which the bracket unit for the cowl crossmember is coupled, is achieved by the cowl cross member having the gear housing anti-shake structure.

The above object is achieved according to the present invention by a bracket for a cowl cross member unit; A cowl cross member to which the bracket unit for the cowl crossmember is coupled; And a gear housing coupled to the bracket unit for the cow cross member by a bolt. The present invention relates to an electric power steering system assembly module having a gear housing anti-shake structure.

According to the present invention, since the pressing member is constrained to rotate and move by the first female screw portion and the fastening bolt whose thread winding directions are opposite to each other while the gear housing is pressed toward the second extension portion, A cowl cross member bracket unit having a gear housing anti-shake structure that can be used as it is, which can prevent vibration of the gear housing due to rotation, easily couple the gear housing to the cowl cross member, Member and an electric power steering system assembly module.

1 is a partial perspective view of a bracket unit for a cowl cross member, a cowl cross member and an electric power steering system assembly module having a gear housing anti-swing structure according to an embodiment of the present invention;
Fig. 2 is a cross-sectional view showing a bracket unit for a cow cross member having the gear housing swing prevention structure of Fig. 1 and a gear housing fastened with bolts. Fig.
Fig. 3 is a partial cross-sectional view showing a bracket unit for a cowl cross member having a gear housing swing prevention structure of Fig. 1 and a state in which a gear housing is fastened with a bolt; Fig.
Fig. 4 is a perspective view showing a pressing member of a bracket unit for a cow cross member having the gear housing swing prevention structure of Fig. 1; Fig.
5 is a partial cross-sectional view showing a bracket unit for a cowl cross member having a gear housing anti-swing structure according to another embodiment of the present invention and a state in which the gear housing is fastened with a bolt.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

The bracket unit, the cowl cross member and the electric power steering system assembly module having the gear housing anti-vibration structure of the present invention can prevent the gear housing from being shaken by rotation of the steering wheel during vehicle operation, The housing can be easily combined and the existing cowl crossmember can be used as it is.

1 is a partial perspective view of a bracket unit, a cowl cross member, and an electric power steering system assembling module for a cowl cross member having a gear housing anti-shake structure according to an embodiment of the present invention, FIG. 2 is a perspective view of the gear housing anti- FIG. 3 is a cross-sectional view showing a bracket unit for a cow cross member having a gear housing swing prevention structure of FIG. 1 and a state in which the gear housing is fastened with a bolt Fig. 4 is a perspective view showing a pressing member of a bracket unit for a cow cross member having the gear housing anti-shake structure of Fig. 1, Fig. 5 is a perspective view of a cow cross member having a gear housing anti- Sectional view showing a state where the bracket unit for members and the gear housing are fastened with bolts.

1 and 2, a bracket unit 100 for a cowl cross member having a gear housing anti-shake structure according to an embodiment of the present invention includes a gear housing GH by rotation of a steering wheel during vehicle operation, The gear housing GH can be easily coupled to the cowl cross member 200 and the existing cowl cross member can be used as it is and the first extension portion 10 and the second extension portion 20, a coupling portion 30, a pressing member 40, and a fastening bolt 50.

1 and 2, the coupling portion 30, the first extension portion 10, and the second extension portion 20 surround the upper portion of the gear housing GH. The coupling portion 30, the first extension portion 10, And the first extension portion 10 and the second extension portion 20 extend from the coupling portion 30 such that the gear housing GH is interposed therebetween.

2, the first extending portion 10 and the second extending portion 20 extend in parallel in the same direction from both ends of the engaging portion 30, and the engaging portions 30, The first extension portion 10 and the second extension portion 20 form a bent shape in a 'C' shape.

As shown in Fig. 1, the engaging portion 30 is engaged with the steering column support bracket 200A. The steering column support bracket 200A is configured to engage the steering column with the cowl cross member 200 and is coupled to a cowl crossbar (not shown). A detailed description of the steering column support bracket 200A is described in detail in Japanese Patent Application No. 1067944 filed by the applicant of the present invention, and thus a detailed description thereof will be omitted.

The 'C' shape of the coupling portion 30, the coupling portion 30, the first extension portion 10 and the second extension portion 20 shown in FIG. 2 is formed by bending the plate material by press molding The insertion portion 60 having the insertion hole into which the insertion protrusion P is inserted is joined to the coupling portion 30, the first extension portion 10 and the second extension portion 20 by press-molding by welding or the like. A detailed description of the inserting portion 60 is described in detail in JP-A-1067944, and therefore a detailed description thereof will be omitted.

As described in the patent application No. 1067944 filed by the applicant of the present invention, the coupling structure of the conventional cowl cross member bracket unit and the gear housing is such that the bracket unit is 'c' so that a part of the gear housing is interposed therebetween, And the bolts and nuts are coupled through the first and second extensions and the holes formed in the gear housing.

However, when manufacturing the bracket unit, a clearance greater than the design dimension of the gear housing must be formed in the interval between the first extended portion and the second extended portion. Therefore, when the steering wheel rotates during vehicle operation, the gear housing shakes in the clearance tolerance interval, There has been a problem that operating noise is generated due to friction between the housing and the first and second extending portions. If the clearance is not formed, the assembly of the gear housing and the bracket unit is not smoothly carried out due to manufacturing tolerances.

2, the bracket unit 100 for a cow cross member having a gear housing anti-shake structure according to the present invention is configured such that the pressing member 40 is engaged with the first extending portion 10 and the second extending portion 20, The gear housing GH is pressed toward the second extension portion 20 to solve the above-described problem.

As shown in FIGS. 2 and 3, a first female threaded portion F1 is formed in the first extended portion 10 instead of a hole in which a conventional bolt is inserted. The first female screw portion F1 is formed in such a manner that the female screw member having the first female screw portion F1 formed on the hole is further coupled after expanding the hole formed in the conventional first extension portion. Of course, the first female screw portion F1 may be formed by forming a screw tab in the hole formed in the first extended portion 10 of the related art. The first female threaded portion F1 is formed in the left-handed direction.

As shown in FIG. 2, the second extended portion 20 is formed with a second female threaded portion F2. The second female screw portion F2 is formed by fixing a nut to the outer surface of the second extension portion 20. [ A hole is formed in the second extension portion 20 so that the fastening bolt 50 can be inserted into the second female screw portion F2. The second female screw portion F2 is formed in the right-hand screw direction.

The reinforcing member 20A, which is not shown in the figure, is a reinforcing member 20A coupled to the second extending portion 20 for securing the rigidity of the second extending portion 20. Therefore, the detailed description is omitted .

A bracket unit 100 for a cowl cross member having a gear housing anti-shake structure according to an embodiment of the present invention is configured such that a first female threaded portion F1 is formed in a first extended portion 10 instead of a conventional hole, The conventional cowl cross member can be used as it is, and thus the conventional problem of the gear housing GH due to rotation of the steering wheel during vehicle operation can be prevented.

2 and 3, the pressing member 40 is configured to press the gear housing GH in the direction of the second extending portion 20, and includes a male thread portion M, a third female threaded portion F3, And a pressing end 40A.

More specifically, as shown in FIG. 4, the pressing member 40 is formed in a cylindrical shape as a whole, and has a male screw portion M formed on its outer circumferential surface and a third female screw portion F3 formed on its inner circumferential surface.

As shown in Figs. 2 and 3, the male threaded portion M is configured to be screwed to the first female threaded portion F1, and is formed in the left-handed direction like the first female threaded portion F1.

The third female threaded portion F3 is configured to be screwed to the fastening bolt 50 and is formed in the right screw direction as the second female threaded portion F2.

The pressing end 40A is a portion forming a contact surface with the gear housing GH and is formed at the end of the third female threaded portion F3. More specifically, the pressing end 40A is formed at the end of the third female threaded portion F3 opposite to the male threaded portion M, that is, opposite to the gear housing GH.

2 and 3, the pressurizing end 40A is formed to extend radially beyond the through-hole H of the gear housing GH, so that the urging member 40 is engaged with the gear housing GH, the pressing end 40A forms a wide contact surface with the outer surface of the through hole H and presses the gear housing GH.

The pressing end 40A is formed to be larger than the diameter of the first female threaded portion F1 and the pressing member 40 is provided between the first extending portion 10 and the second extending portion 20 by a first female threaded portion F1 ).

3 (a), before the fastening bolt 50 is screwed to the third female threaded portion F3, the pressing member 40 is brought into close contact with the first extended portion 10 side .

2 and 3, the fastening bolt 50 is configured to form a coupling force between the bracket unit 100 and the gear housing GH, and has a second female threaded portion F2 and a third female threaded portion F3 ).

More specifically, as shown in Fig. 3A, the fastening bolt 50 is fastened to the first extension portion 10 and the second extension portion 20 in a state where the gear housing GH is interposed between the first extension portion 10 and the second extension portion 20, Is screwed to the third female threaded portion F3 in the direction of the second extended portion 20 from the extended portion 10 and passes through the through hole of the gear housing GH in a state of being threadedly engaged with the third female threaded portion F3 And screwed to the second female threaded portion F2.

As shown in FIG. 2, the fastening bolt 50 is formed with threads as a whole along the longitudinal direction so as to be screwed together with the second female threaded portion F2 and the third female threaded portion F3. That is, the shaft portion is minimized and the screw portion occupies most of the length of the fastening bolt 50.

Although not shown in detail, the fastening bolt 50 may be formed with threads only at portions that are screwed with the second female threaded portion F2 and the third female threaded portion F3. That is, the screw portion may be formed at both ends of the length of the bolt, and the shaft portion may be formed between the both screw portions.

2 and 3, the fastening bolt 50 is fitted with a washer W. As shown in Fig. The washer W is interposed between the head 50A and the first extending portion 10 and the urging member 40 so that the pressure applied from the head 50A by the fastening force of the fastening bolt 50 is transmitted to the first extending portion 10 and the urging member 40. [0050] Hereinafter, for the sake of a better understanding, the description of the transmission structure of the pressure dispersion by the washer W will be omitted.

The principle of coupling the bracket unit 100 for a cowl cross member having a gear housing anti-shake structure according to an embodiment of the present invention with the gear housing GH by the fastening bolt 50 will be described below.

3 (a), the fastening bolt 50 is formed such that the urging member 40 is screwed to the first female threaded portion F1 and the gear housing GH is screwed into the first extended portion 10 and the 2 extended portion 20 in a state where the first female screw portion F3 is interposed between the first female screw portion F3 and the second female screw portion F3. As described above, the male threaded portion M of the pressing member 40 and the first female threaded portion F1 are screwed in the left-handed direction.

The fastening bolt 50 and the third female threaded portion F3 are screwed in the right screw direction so that the fastening bolt 50 is screwed to the third female threaded portion F3, The male screw portion M integrally formed with the third female screw portion F3 is coupled with the first female screw portion F1 in the left screw direction, The pressing member 40 moves and rotates until the head 50A of the fastening bolt 50 comes into contact with the pressing member 40 while the fastening bolt 50 is threadedly engaged with the third female threaded portion F3 And remains in a stopped state.

3 (a), when the head 50A of the fastening bolt 50 contacts the once-pressing member 40, the pressing member 40 is moved by the head 50A of the fastening bolt 50 The torque that rotates the fastening bolt 50 is transmitted to the pressing member 40 through the third female threaded portion F3 by being pressed in the moving direction of the fastening bolt 50. [

The fastening bolt 50 is already screwed into the second female threaded portion F2 before the head 50A comes into contact with the pressing member 40 and moves and rotates along the thread of the second female threaded portion F2 .

At least one of the male screw portion M and the first female screw portion F1 is elastically deformed by the torque transmitted through the third female threaded portion F3.

3 (a), in an embodiment of the present invention, the third female threaded portion F3 is formed so as to be spaced apart from the male threaded portion M in the direction in which the fastening bolt 50 is threaded, (M) is subjected to elastic bending deformation in the radial direction.

As shown in FIGS. 2 and 3, when the male threaded portion M is formed thinner than the third female threaded portion F3 in the radial direction, the third female threaded portion F3 is screwed with the fastening bolt 50 The elastic bending deformation of the male thread portion M can be induced.

Although not shown, the third female threaded portion F3 is formed of a metal material and the male threaded portion M is formed of a synthetic resin material elastically and elastically deformed so that the third female threaded portion F3 is fastened to the fastening bolt 50, The elastic bending deformation of the male thread portion M can be induced.

3 (a), rotation and movement of the pressing member 40 are restrained by the first female threaded portion F1 and the fastening bolt 50 whose thread winding directions are opposite to each other, Is elastically deformed in the radial direction by the torque transmitted through the third female threaded portion F3, the thread of the male threaded portion M is engaged with the first female threaded portion F1 The screw thread M is elastically bent and deformed in a direction away from the first threaded portion F1 so that the restraint by the threaded engagement between the threaded portion M and the first threaded portion F1 is temporarily The pressing member 40 is rotated together with the fastening bolt 50 and moves in the direction of the second female threaded portion F2.

As shown in Fig. 4, the male screw portions M are preferably divided into a plurality of portions spaced apart in the circumferential direction. When the male threaded portions M are divided into a plurality of portions spaced apart from one another in the circumferential direction, the divided male threaded portions M do not constrain each other in the circumferential direction, so that an advantage of facilitating the radial elastic flexure deformation of the male threaded portions M have.

4, the male thread M is divided into a first male thread M1, a second male thread M2, a third female thread M3 and a fourth female thread M4, M) may be two, three or more.

2 and 3 (c), when the pressing end 40A is brought into close contact with the gear housing GH, when the bracket unit 100 and the gear housing GH are rotated and moved by the rotation and movement of the fastening bolt 50, The process of forming the bond strength is completed.

The male threaded portion M is manufactured as a manufacturing tolerance at least corresponding to the outer surface of the first extended portion 10 when the pressing end 40A is brought into close contact with the gear housing GH. When the male screw portion M is manufactured as a manufacturing tolerance at least coinciding with the outer surface of the first extension portion 10 when the pressing end portion 40A is pressed against the gear housing GH, the pressing end portion 40A is engaged with the gear housing The male threaded portion M can be elastically deformed even if the male threaded portion M is slightly protruded toward the head 50A beyond the outer surface of the first extended portion 10 when the male threaded portion M is in close contact with the pressing end 40A. The head 50A of the fastening bolt 50 can form a contact surface at the same time as the first extending portion 10 and the urging member 40 when the fastening bolt 50 is brought into close contact with the gear housing GH.

As shown in FIGS. 2 and 3 (c), when the pressing end portion 40A is brought into close contact with the gear housing GH, the vibration of the gear housing due to the clearance tolerance in the conventional steering wheel rotation is prevented, 40 are constrained to rotate and move by the first female threaded portion F1 and the fastening bolt 50 which are opposite in thread winding direction while the gear housing GH is pressed toward the second extended portion 20 , The state in which the gear housing GH is prevented from being shaken is firmly maintained.

5A to 5C, in the bracket unit 100 for a cow cross member having a gear housing swing prevention structure, the male screw portion M extends from the third female screw portion F3 to a radius As shown in FIG.

5 (a), when the male screw portion M is formed so as to be radially spaced from the third female screw portion F3, as shown in Fig. 5 (b), the pressing member 40 The male threaded portion M is elastically deformed to the third female threaded portion F3 in the spaced space and the threaded portion M is screwed to the first female threaded portion F1 while being rotated and moved together with the fastening bolt 50. [ The pressing member 40 is rotated together with the fastening bolt 50 and moves in the direction of the second female threaded portion F2.

Although not shown in detail, it is preferable that the male screw portions M are partitioned into a plurality of portions spaced apart in the circumferential direction. When the male threaded portions M are divided into a plurality of portions spaced apart from one another in the circumferential direction, the divided male threaded portions M do not constrain each other in the circumferential direction, so that an advantage of facilitating the radial elastic flexure deformation of the male threaded portions M have.

5 (a) to 5 (c), when the male screw portion M is formed so as to be radially spaced from the third female screw portion F3, the third female screw portion F3 and the male screw portion M are respectively coupled to the pressurizing end portions 40A and the third female threaded portions F3 are formed to extend from the male threaded portion M in the threaded direction of the fastening bolt 50, So that the elastic deformation of the male screw portion M can be advantageously facilitated.

As shown in FIG. 1, the cowl cross member 200 to which the bracket unit 100 for the cowl cross member is coupled forms a cowl cross member 200 having a gear housing swing prevention structure.

1, the cowl cross member 200 to which the bracket unit 100 for a cowl cross member is coupled and the gear housing GH to which the cow cross member 200 is coupled include an electric power steering device having a gear housing anti- Thereby forming the system assembly module 300.

According to the present invention, the urging member 40 includes a first internally threaded portion F1 and a fastening bolt 50 which are threadedly wound in opposite directions with the gear housing GH pressed toward the second extended portion 20, The gear housing GH can be prevented from being shaken by rotation of the steering wheel during vehicle operation and the gear housing GH can be easily coupled to the cowl cross member 200, It is possible to provide the cow cross member bracket unit 100, the cow cross member 200, and the electric power steering system assembling module 300 having the gear housing anti-shake structure that allows the cross member to be used as it is.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

100: Bracket unit 300: System assembly module
200: Cow cross member GH: Gear housing
200A: Support bracket H: Through hole
10: first extension part 40: pressure member
F1: first female thread part M: male thread part
20: second extension part F3: third female thread part
F2: Second female thread portion 40A: Pressing end
30:
50: fastening bolt
50A: Head

Claims (10)

The gear housing of the electric power steering is coupled to the cowl cross member,
A coupling portion coupled to the cowl cross member;
A first extension portion extending from the coupling portion such that the gear housing is interposed therebetween and having a first female threaded portion; A second extension portion having a second female threaded portion that is opposite in thread winding direction to the first female threaded portion;
A pressing member having an outer circumferential surface formed with a male screw portion to be screwed with the first female screw portion and having a third female screw portion on an inner circumferential surface thereof, the third female screw portion being opposite to the first female screw portion; And
And a fastening bolt threadedly engaged with the second female threaded portion and the third female threaded portion and passing through a through hole formed in the gear housing between the first extended portion and the second extended portion,
Wherein the pressing member is restricted in rotation and movement by the first internal thread portion and the fastening bolt whose thread winding directions are opposite to each other in a state where the gear housing is pressed toward the second extending portion,
Wherein the fastening bolt is threadedly engaged with the third female threaded portion and then screwed with the second female threaded portion,
Wherein the pressing member is pushed by the head of the fastening bolt and rotated and moved together with the fastening bolt when the fastening bolt is screwed to the second internal thread,
Wherein at least one of the male screw portion and the first female screw portion is elastically deformed when the pressing member is rotated and moved together with the fastening bolt. delete delete The method according to claim 1,
Wherein the third female threaded portion is spaced apart from the male threaded portion in a direction in which the fastening bolt is screwed,
Wherein the male screw portion is elastically deformed when the pressing member is rotated and moved together with the fastening bolt. 5. The method of claim 4,
Wherein the pressing member further includes a pressing end portion formed at an end portion of the third female screw portion in a shape radially extending from the through hole. The method according to claim 1,
Wherein the male screw portion is formed radially spaced apart from the third female screw portion,
Wherein when the pressing member is rotated and moved together with the fastening bolt, the male screw portion is resiliently deformed toward the third female screw portion. The bracket unit for a cow cross member according to claim 1, The method according to claim 6,
Wherein the pressing member further includes a pressing end portion formed in a shape radially extended from the through hole and the third female thread portion and the male thread portion being respectively engaged with the cowl cross member having the gear housing anti- Bracket unit. The method according to claim 4 or 6,
Wherein the male screw portion includes a first male screw portion and a second female screw portion which are circumferentially spaced apart from each other. A bracket unit for a cow cross member according to claim 1; And
And a cowl cross member to which the bracket unit for the cowl crossmember is coupled, the cowl cross member having a gear housing anti-shake structure. A bracket unit for a cow cross member according to claim 1;
A cowl cross member to which the bracket unit for the cowl crossmember is coupled; And
And a gear housing that is bolted to the bracket unit for the cow cross member.
KR1020150046242A 2015-04-01 2015-04-01 Cowl cross member for anit-sway of gear housing, bracket unit of cowl cross member, mdps system assembly module KR101654297B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010003228A (en) * 1999-06-22 2001-01-15 정몽규 A unificated mounting structure of steering gearbox and power train
KR20050061518A (en) * 2002-10-07 2005-06-22 더 게이츠 코포레이션 Tolerance compensating mounting device
KR101067944B1 (en) 2010-04-27 2011-09-26 덕양산업 주식회사 Assembly module for motor driven power steering system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010003228A (en) * 1999-06-22 2001-01-15 정몽규 A unificated mounting structure of steering gearbox and power train
KR20050061518A (en) * 2002-10-07 2005-06-22 더 게이츠 코포레이션 Tolerance compensating mounting device
KR101067944B1 (en) 2010-04-27 2011-09-26 덕양산업 주식회사 Assembly module for motor driven power steering system

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