KR101024626B1 - Stabilizer bar bushing implement - Google Patents

Abstract

Disclosed is an integrated stabilizer bar bushing implement for controlling roll motion of a driving vehicle. The stabilizer bar bushing mechanism is formed along an inner surface of an annular band-shaped core material having an incision cut at one side to form an opening, and formed to form a through hole for accommodating one side of the stabilizer bar. The inner side of the stabilizer bar that is in contact with the stabilizer bar to prevent slipping, the inner rubber is formed, the outer rubber and the core installed along the outer surface of the core, the inner rubber and the outer rubber to support the structure of the vehicle It has a configuration including a support for giving, to prevent the slip of the stabilizer to prevent the generation of noise, the opening is arranged downwards, which is advantageous in the automation of assembly, and provides the effect of reducing the material cost according to the manufacturing.

Stabilizer, Bar, Bushing, Bushing Fixture, Slip

Description

Stabilizer bar bushing implement

The present invention relates to an integrated stabilizer bar bushing implement for controlling roll motion of a driving vehicle.

In general, the integrated stabilizer bar bushing mechanism refers to a bushing mechanism in which the inner rubber of the inner steel rotates like a stabilizer bar without slips according to the roll motion of the vehicle, thereby preventing noise from friction. Means .

Conventional integrated stabilizer bar bushing mechanism is difficult to automate when assembling because the cutting direction is formed in the direction of 45 degrees upward from the horizontal center line to assemble the stabilizer bar , and the bushing due to excessive compression on the rubber between the inner steel and the assembly bracket Deviation from this assembly bracket occurred .

In order to prevent this, a locking jaw is made in the plastic supporting the inner steel and the rubber so as to be caught in the hole of the assembly bracket so that the bushing does not escape from the assembly bracket. This conventional integrated stabilizer bar bushing mechanism will be described with reference to FIGS. 1 and 2.

1 is a perspective view showing an example of a conventional stabilizer bar bushing mechanism, Figure 2 is a perspective view of a plastic block used in the manufacture of the stabilizer bar bushing mechanism of Figure 1, Figure 3 is a state in which the stabilizer bar is inserted into the bushing of Figure 1 Is a perspective view showing a state in which the assembly bracket is coupled to the outer rubber outside.

As shown in FIGS. 1 to 3, the conventional stabilizer bar bushing mechanism 100 includes a core material 110. The core member 110 has an annular band shape in which an incision 112 is formed at one side, and is usually made of steel. The cutout 112 is formed in a 45 degree direction upward with respect to the horizontal plane. The stabilizer bar 10 is inserted inwardly through this incision 112.

As shown, the inner rubber 120 is attached along the inner surface of the core 110, and the outer rubber 130 is attached along the outer surface of the core. Accordingly, the inner rubber 120 and the inner rubber 130 also have an annular band shape with one side open naturally.

The lower side of the outer rubber 130, the plastic block 140 is installed. As shown in FIG. 2, the plastic block 140 has a groove 142 formed at the same depth so that the lower portion of the outer rubber 130 is inserted into the upper surface thereof so that the outer rubber 130 is not separated from the front and rear. Engaging jaw 144 is formed on both sides of the plastic block 140, respectively. This locking step 144 is a part caught in the hole 152 formed in the assembly bracket 150 as shown in FIG.

In the bushing mechanism 100 as shown in FIG. 1, the stabilizer bar 10 is inserted inward through an opening 102 formed 45 degrees upward. The stabilizer bar bushing mechanism 100 of FIG. 1 is fixed to the structure of the vehicle such as a frame through the assembly bracket 150 while the stabilizer bar 10 is mounted to the inner through hole 104 through the opening 102. do.

Referring to FIG. 3, the assembly bracket 150 has an arc shape and includes a portion surrounding the three surfaces of the outer rubber 130 and a portion extending horizontally from both ends thereof and fixed to the structure of the vehicle. Fastening grooves 154 are formed at both ends thereof so as to be fixed to the structure of the vehicle through bolts and nuts. Both side surfaces of the assembly bracket 150 are provided with holes 152 into which the locking jaw 144 is inserted.

Conventional stabilizer bar bushing mechanism 100 as described with reference to Figures 1 to 3 has a big problem that a noise is generated by a slip between the inner rubber 120 and the stabilizer bar 10. When slip occurs between the inner rubber 120 and the stabilizer bar 10, the inner rubber 120 wears down, which shortens the life of the bushing, decreases the performance of supporting the stabilizer bar 10, and decreases the axial support force. There is a problem.

And when assembling has a disadvantage that the locking jaw 144 formed on the side of the plastic block 140 by the force applied to the assembly bracket 150 is broken well .

As a result, the product cost of the plastic block 140 is increased and the strength of the bracket 150 is weakened due to the hole 152 of the bracket 150 for hanging on the locking jaw 144. There is a problem that the thickness of to be large.

In addition, when the stabilizer bar 10 is inserted into the bushing mechanism 100 and mounted on the vehicle, the pressing force of the assembly bracket 150 to close the opening 102 is determined by the left outer rubber 130 of the opening 102. It is relatively large at the top.

When the load is applied in the axial direction of the stabilizer bar 10 in the state in which excessive compressive force is applied to the core member 110 and the assembly bracket 150, the bushing inside the assembly bracket 150 is the length of the stabilizer bar 10. Another problem is that there is a risk of deviation .

SUMMARY OF THE INVENTION An object of the present invention is to provide a stabilizer bar bushing mechanism that can prevent the supported stabilizer bar from slipping, thereby preventing the occurrence of disadvantages such as noise generation, rubber wear on the contact portion and consequent deterioration of support performance. .

Another object of the present invention is to provide a stabilizer bar bushing mechanism that is easy to automate the assembly of the stabilizer bar.

Another object of the present invention is a stabilizer bar bushing mechanism that can prevent the bushing of the lower portion of the assembly bracket from being detached as the rubber between the core material and the assembly bracket is excessively compressed, and does not have to make a catching jaw for preventing the separation. To provide.

The remaining object of the present invention is to provide a stabilizer bar bushing mechanism that can improve the productivity and lower the cost by supplementing the disadvantages of the conventional stabilizer bar bushing mechanism as described above.

The stabilizer bar bushing mechanism according to the present invention is a stabilizer bar bushing mechanism used to support the stabilizer bar in a structure of a vehicle by inserting a stabilizer bar through an opening through the opening, wherein one side is formed for forming the opening. An annular band-shaped core having an incision cut out, which is installed along the inner surface of the core to form a through hole for receiving one side of the stabilizer bar, and on the inner surface in contact with the received stabilizer bar. An inner rubber having a slip preventing portion for preventing the riser bar is slipped, an outer rubber installed along the outer surface of the core material and a support for supporting the core material, the inner rubber and the outer rubber to the vehicle structure. Has

The support is made of a plastic material and at least one pair is disposed left and right with a gap, and the cutout is disposed to face the gap of the support so that the side opening for inserting the stabilizer bar has the stabilizer bar bushing mechanism installed therein. Have a configuration arranged to face the structure.

Preferably, the slip preventing part is formed by arranging a part of the inner rubber to be radially inward of the through hole.

The slip preventing portion is any one of a flat portion, a concave curved portion having a radius of curvature larger than the radius of the through hole, and a convex curved portion convex toward the center, and the circumferential surface length of the slip preventing portion is corresponding to the outside of the through hole. It is better to form shorter than the circumferential length of.

The slip prevention part is preferably installed in a position facing each other at intervals.

The stabilizer bar bushing mechanism according to the present invention is installed at both ends of the main body portion and the main body portion having an annular band shape so as to surround the outer circumferential surface of the outer rubber except for the lower side surface and fixed to the structure of the vehicle. It may further include a bracket having a fixing portion.

A detachment stopper is formed to be convex or concave in an arc direction along an outer circumferential surface of the outer rubber, and is formed in an arc direction along an inner circumferential surface of the bracket and is coupled to the release preventing latch so that the outer rubber is in the arc direction. It may have a configuration provided with a departure preventing engaging portion formed concave or convex to prevent the departure in the direction perpendicular to the.

Stabilizer bar bushing mechanism according to the present invention is formed on the inner rubber inner circumferential surface of the inner core material to prevent slipping is most important in the integrated stabilizer bar bushing mechanism, so that the slip of the bushing when rotating the stabilizer bar This prevents noise and wear of rubber due to slip of stabilizer bar.

And the stabilizer bar bushing mechanism according to the present invention is easy to assemble automation because the cutting direction is formed downward.

In addition, since excessive compression does not occur in the rubber between the core material and the assembly bracket, the separation of the bushing body does not occur in the assembly bracket, so it is not necessary to form a locking step in the plastic block, thereby helping to reduce cost and improve productivity.

In addition, since the assembly bracket does not have to form a hole for catching the locking step, the strength of the assembly bracket can be prevented from being weakened, and thus, the assembly bracket may be made thinner than the conventional one.

The anti-separation jaw formed on the outer rubber outer surface of the bushing prevents the bushing under the assembly bracket from detaching from the assembly bracket when it is loaded in the axial direction of the stabilizer bar, but is not easily broken or broken .

The present invention as described above to compensate the disadvantages of the conventional integrated stabilizer bar bushing mechanism of the vehicle to provide the effect of productivity and cost reduction.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a perspective view of the stabilizer bar bushing mechanism according to the present invention, Figure 5 is a perspective view of the core material used to make the stabilizer bar bushing mechanism of Figure 4, Figure 6 makes the stabilizer bar bushing mechanism of Figure 4 7 is a front view of the stabilizer bar bushing mechanism of FIG. 4.

The stabilizer bar bushing mechanism 200 according to the present invention as shown in FIGS. 4 to 7 inserts the stabilizer bar 10 into the through-hole 204 through the opening 202 as shown in FIG. It is used to support the stabilizer bar 10 in the structure of a back vehicle, and has a core 210 as shown in FIG. The core member 210 is made of a metal having elasticity, and steel is preferable. The core member 210 has an annular band shape having an incision 212 cut at one side thereof, and the incision 212 is formed downward. And the surface protruding back and forth is covered with a rubber layer 214, the core material 210 is exposed to the outside only one portion of the left and right cut portions.

4 and 7, the inner rubber 220 is attached to the inner surface of the core member 210. The inner rubber 220 is in direct contact with the stabilizer bar 10 as shown in FIG. 4 inserted therein to directly support the stabilizer bar 10, and the inner surface of the core member 210 therein. It is installed along to form a through-hole 204 for accommodating one side 10 of the stabilizer bar. The inner surface of the inner rubber 220 in contact with the stabilizer bar 10 accommodated in the through hole 204 is formed with a slip prevention portion 222 for preventing the stabilizer bar 10 from slipping. The slip prevention part 222 is formed by arranging a part of the inner rubber 220 in the radially inner side of the through hole 204, and an inner circumferential surface thereof forms a flat part 223. The circumferential length of the planar portion 223 is naturally shorter than the circumferential length of the corresponding through hole on the outside thereof. In some cases, the slip prevention portion 222 is concave or convex, having a radius of curvature greater than the radius of the through hole, concave slightly outwardly or convexly toward the center of the planar portion 223 of FIG. Can be taken. Of course, even in this case, the circumferential length of the surface is preferably shorter than the circumferential length of the corresponding portion of the through hole 204. Only when the inner surface of the inner rubber 220 is pressed against the stabilizer bar, the surface of the inner rubber 220 is slightly stretched so as to be in close contact with the surface of the stabilizer bar, and the surface of the stretched inner rubber 220 is in close contact with the surface of the stabilizer bar. In this state, the surface is able to hold the stabilizer bar with great force while exerting a force to contract. Accordingly, the inner rubber 220 does not allow the stabilizer bar to slip or lowers the likelihood of slipping. Such slip prevention part 222 is preferably installed in pairs at positions facing each other as shown in FIG. In some cases, at least one side may be provided in three sections or two or more pairs.

The outer rubber 230 is provided along the outer surface of the core member 210. The outer rubber 230 is disposed between the assembly bracket 250 and the core 210, which will be described later when mounted on the vehicle, so that the outer rubber 230 is not subjected to excessive pressure to the longitudinal direction of the stabilizer bar. It is desirable to make the width of the furnace relatively large. On the outer surface of the outer rubber 230, a separation preventing stopper 232 is formed convex to the outside in the circumferential direction or the arc direction is formed. As shown in FIG. 4, it is preferable to install a pair of the separation preventing locking step 232 at intervals. However, in some cases, one pair may be formed slightly larger or three or more may be provided. The anti-separation stopper 232 is to prevent the lower portion of the assembly bracket 250 when the stabilizer bar is subjected to axial force in the longitudinal direction thereof.

On the lower side of the outer rubber 230, a pair of supports 240 as shown in Figure 6 is provided with a gap 242. The outer support circumference of the support 240 is provided with a support support rubber 242 for holding the support 240. This support body support rubber 242 is not necessary. The supporter 240 serves to support the core member 210, the inner rubber 220 and the outer rubber 230 described above to the structure of the vehicle to resist the pressing force of the assembly bracket 250 when installed in the vehicle. , The inner upper surface has a circular curved surface, such as the outer peripheral surface of the core material (210).

The support 240 is preferably made of a plastic material. The cutout 212 of the core 210 is disposed to face the gap 244.

In the stabilizer bar bushing mechanism 200 according to the present invention configured as described above, an opening 202 for inserting a stabilizer bar is formed downward. Thereby, the stabilizer bar bushing mechanism 200 as shown in FIG. 4 can be mounted while moving below from the stabilizer bar. This is advantageous in automating the mounting of the stabilizer bar bushing mechanism 200 to the stabilizer bar.

In the state of being mounted on the structure of the vehicle, the opening 202 for inserting the stabilizer bar faces the vehicle structure in which the stabilizer bar bushing mechanism is installed.

That is, the stabilizer bar bushing mechanism 200 according to the present invention is advantageous in automating the assembly work.

And since the opening 202 is formed downward, the outer surface of the rubber 230, the entire surface of the assembly bracket 250 is evenly received, thus unlike the conventional bushing core material 210 and the assembly bracket 250 of the upper portion Excessive compression of the outer rubber 230 between) compared with the other portion does not occur.

FIG. 8 is a perspective view of an assembly bracket for fixing the stabilizer bar bushing mechanism of FIG. 4 to a structure of a vehicle, and FIG. 9 is a perspective view illustrating a state in which the assembly bracket of FIG. 8 is assembled to the stabilizer bar bushing mechanism of FIG. 4. to be.

The stabilizer bar bushing mechanism 200 according to the present invention has an assembly bracket 250 as shown in FIG. 8. The assembly bracket 250 is composed of an arc-shaped body portion 255a and a fixing portion 250b which is arranged horizontally by bending from the body portion 250a. The fixing part 250b may have its bending angle vary depending on the shape of the structure to be mounted, and in some cases, the fixing part 250b may extend downward under the main body without being bent.

The main body portion 250a has an annular band shape so as to surround the outer circumferential surface of the outer rubber 230 except for the lower side. On the inner surface of the main body portion 250a, the anti-separation locking portion 252 is formed in the circumferential direction along the inner circumferential surface thereof so as to be coupled to the anti-separation locking projection 232 formed on the outer rubber 230. The pair is also formed at intervals, such as the separation prevention stopper 232. The departure preventing locking part 252 may be concave or convex depending on the shape of the stopping preventing stopping jaw 232 and the quantity may be adjusted according to the number of the stopping preventing stopping jaw 232.

The fixing part 250b is installed at both ends of the main body part 250a and may vary depending on the shape of the structure of the vehicle.

That is, the stabilizer bar bushing mechanism 200 of FIG. 4 is mounted to the stabilizer bar 10 through the opening 202 formed at the lower side thereof, and in this state, the assembly bracket 250 of FIG. 8 is mounted on the outer rubber 230. The coupling part 250b of the assembly bracket 250 may be fixed to the structure of the vehicle by using a bolt or a nut. The stabilizer bar bushing mechanism 200 is pressurized on both sides in the state of being mounted on the structure of the vehicle, and the opening 202 is closed and the inner hole 204 of the inner rubber 220 is reduced in diameter to prevent slipping on the inner surface. The inner rubber 220 in which the portion 222 is formed firmly grips the stabilizer bar 10.

10 is a front view showing another embodiment of the stabilizer bar bushing mechanism according to the present invention.

The stabilizer bar bushing mechanism 200a shown in FIG. 10 is formed such that the opening 202 for inserting the stabilizer bar faces upward 45 degrees or the like as in the prior art, and the inside of the inner rubber 220 is shown in FIG. As described above, the slip prevention part 222 is formed.

That is, the stabilizer bar bushing mechanism 200a shown in FIG. 10 faces the cutout portion 212 of the core member 210 to about 45 degrees upward, the inner rubber 220 inside the outer rubber 220, and the outer rubber (outside) the outer rubber ( 230) is installed. The lower supporter 240 is the same as a conventional plastic block in which a locking step 245 is formed at a side thereof, and a support support rubber 242 is installed around the supporter 240.

In this case, the same assembly bracket 250 as that described in Figure 3 should be used.

The stabilizer bar bushing mechanism 200a according to the present invention as shown in FIG. 10 has some disadvantages as described in the prior art, but is stabilized due to the slip prevention portion 222 formed on the inner circumferential surface of the inner rubber 220. The bar can be prevented from slipping or the likelihood of slipping can be reduced. Accordingly, the stabilizer bar bushing mechanism 200a according to the present invention as shown in FIG. 10 may solve various problems caused by slipping of the stabilizer bar.

The stabilizer bar bushing mechanism according to the present invention can be usefully used for manufacturing a low noise vehicle.

In addition, it can be usefully used to reduce the manufacturing cost of the stabilizer bar bushing mechanism and to make the product with a long service life.

In addition, it is possible to use to prevent the bushing supported in the lower portion of the assembly bracket to be detached.

1 is a perspective view showing an example of a conventional stabilizer bar bushing mechanism,

FIG. 2 is a perspective view of a plastic block used in the manufacture of the stabilizer bar bushing mechanism of FIG. 1, FIG.

Figure 3 is a perspective view showing a state in which the assembly bracket is coupled to the outer rubber outside in the state where the stabilizer bar is inserted into the bushing of Figure 1,

4 is a perspective view of a stabilizer bar bushing mechanism according to the present invention;

5 is a perspective view of a core material used to make the stabilizer bar bushing mechanism of FIG. 4;

6 is a perspective view of a support used to make the stabilizer bar bushing mechanism of FIG. 4, FIG.

7 is a front view of the stabilizer bar bushing mechanism of FIG. 4;

8 is a perspective view of an assembly bracket for fixing the stabilizer bar bushing mechanism of FIG. 4 to a structure of a vehicle;

9 is a perspective view illustrating a state in which the assembly bracket of FIG. 8 is assembled to the stabilizer bar bushing mechanism of FIG. 4;

10 is a front view showing another embodiment of the stabilizer bar bushing mechanism according to the present invention.

Explanation of symbols on the main parts of the drawings

10: stabilizer bar 200, 200a: stabilizer bar bushing mechanism

202: opening 204: through hole

210: core 212: incision

214: rubber layer 220: inner rubber

222: slip prevention portion 223: flat portion

230: outer rubber 232: separation prevention jaw

240: support 250: assembly bracket

252: separation prevention stop

Claims (7)

A stabilizer bar bushing mechanism used to support a stabilizer bar to a structure of a vehicle by inserting a stabilizer bar through an opening through an opening. A core having an annular band shape having an incision cut at one side to form the opening; The inner side of the core is formed along the inner surface to form a through-hole for accommodating one side of the stabilizer bar and the inner surface in contact with the received stabilizer bar is formed with a slip prevention portion for preventing the stabilizer bar from slipping Rubber; Outer rubber installed along the outer surface of the core material; And It includes a support for supporting the core, the inner rubber and the outer rubber to the structure of the vehicle, The slip preventing portion is formed by a portion of the inner rubber disposed inside the radius of the through hole and the surface length in the circumferential direction thereof is shorter than the circumferential length of the corresponding through hole outside thereof, when the surface is pressed against the stabilizer bar. The stretcher is in close contact with the surface of the stabilizer bar, and in a state of being in close contact with the surface of the stabilizer bar, the extended surface is able to hold the stabilizer bar while exerting a force to contract. Stabilizer bar bushing mechanism, characterized in that to prevent. The stabilizer bar bushing according to claim 1, wherein the support is made of plastic and at least one pair is disposed left and right with a gap, and the cutout is disposed to face a gap of the support so that a side opening for inserting the stabilizer bar is provided in the stabilizer bar bushing. Stabilizer bar bushing mechanism, characterized in that the mechanism is disposed facing the vehicle structure, the surface of the support is surrounded by a rubber integrally connected with the outer rubber. delete The stabilizer according to claim 1 or 2, wherein the slip preventing part comprises any one of a flat part, a concave curved part having a radius of curvature larger than the radius of the through hole, and a convex curved part convex toward the center. Bar bushing mechanism. delete delete The method according to claim 1 or 2, wherein the body portion is formed in an annular band shape so as to surround the outer circumferential surface of the outer rubber except for the lower side, and is fixed to the structure of the vehicle. Further comprising a bracket having a fixing portion, A detachment preventing jaw formed in a convex or concave direction is provided along the outer circumferential surface of the outer rubber, is formed in an arc direction along the inner circumferential surface of the body portion of the bracket and is coupled to the detachment stopping jaw and the outer rubber is the circular arc. A concave or convex separation preventing portion is provided to prevent the separation in a direction perpendicular to the direction. Stabilizer bar bushing mechanism, characterized in that the separation preventing locking step and the separation preventing locking portion are respectively installed at intervals in the direction perpendicular to the arc direction.

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