JP2013112333A - Roll rod for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll rod for automobile, in which a surface damage is prevented and anti-rust performance can be improved by mounting and assembling the front and rear insulator configured at both sides of a bracket, respectively, according to a vulcanization joint system and an insert system.SOLUTION: The roll rod for automobile includes: a bracket; and a front insulator and a rear insulator which are configured at both sides of a bracket. One of the front and rear insulator is mounted in an opening of the bracket by a vulcanization joint system and the other one thereof is mounted in the opening of the bracket by the insert system.

Description

  The present invention relates to a roll rod for an automobile, and more specifically, the front and rear insulators configured on both sides of the bracket are assembled by mounting them by a vulcanization joining method and an insert method, respectively, thereby preventing surface damage. The present invention relates to an automotive roll rod capable of improving rust prevention performance.

  Recently, in order to reduce the weight of a vehicle and improve fuel efficiency, a powertrain is mounted using an inertia three-point support system. (See Patent Document 1)

  Referring to FIG. 1, roll rods 1 and 2 are used to control the roll direction by an inertia three-point support system. In a vehicle with a large torque, an upper roll rod 2 is further mounted on the upper side of the engine mount. The excessive displacement is controlled.

  Usually, steel or aluminum is applied to the roll rod of the power train according to the material of the bracket, and the steel roll 3 is used for the upper roll rod 2 as shown in FIG.

  Specifically, the upper roll rod 2 is mounted at the upper end of the engine mount so as to be fixed to the vehicle body, and uses a bushing to control the excessive displacement of the power train, thereby causing the vehicle to move in the longitudinal direction. Control (vibration / noise insulation).

  FIG. 3 is a perspective view schematically showing a manufacturing process of a conventional automobile upper roll rod.

  As shown in FIG. 3, the general upper roll rod includes a bracket 3 and front and rear insulators 4 and 5 that are attached to both sides of the bracket 3.

  The bracket 3 is made of a steel material as described above, and each insulator 4, 5 is composed of outer pipes 6, 9, inner pipes 7, 10 and rubber bushes 8, 11.

  A method of manufacturing such a conventional upper roll rod will be described. Each component part of the insulators 4 and 5 configured as described above is separately manufactured, and the insulators 4 and 5 integrally assembled as shown in FIG. A process of forced press-fitting into the steel bracket 3 is performed.

  However, the conventional upper roll rod manufactured in this way has a structure in which when the insulators 4 and 5 are forcibly press-fitted into the steel bracket 3, the outer pipes 6 and 9 of the insulators 4 and 5 and the steel bracket 3 are brought into contact with each other. There is a problem that the coating of the bracket is peeled off, and the rubber bushes 8 and 11 are injection-molded between the outer pipes 6 and 9 and the inner pipes 7 and 10, so that there is a problem that it is difficult to paint the outer pipe separately.

  Therefore, the conventional upper roll rod as described above has a high risk of deteriorating the painting quality of the finished vehicle and thereby causing customer dissatisfaction.

  Usually, the upper roll rod is disposed on the upper end of the engine mount so that the customer can easily recognize it with the naked eye in the engine room.

JP 2004-155325 A

  The present invention has been made in view of the above points, and an object of the present invention is to vulcanize and bond the front and rear insulators formed on both sides of the bracket, respectively, to the vulcanization adhesion method and the insert method or the insert method and the vulcanization. An object of the present invention is to provide a roll rod for automobiles which is prevented from being damaged by the conventional forced press-fitting type mounting and improved in rust prevention performance by mounting by an adhesive method.

  In order to achieve the above object, the present invention includes a front insulator and a rear insulator configured on both sides of the bracket and the bracket, and one of the front and rear insulators is open to the bracket by a vulcanization joining method. The other one is configured to be mounted on the opening of the bracket by an insert method.

  Preferably, the opening of the bracket is formed in a tapered shape, and the insulator attached by the insert method is formed in a tapered shape corresponding to the tapered opening of the bracket.

In addition, the insulator mounted by the insert method is characterized in that a locking protrusion that is locked to the groove of the bracket is formed on the outer peripheral surface.
That is, the insulator mounted by the insert method has a locking protrusion formed on the outer peripheral surface, and this locking protrusion is engaged with the groove of the bracket when the insulator is inserted into the opening of the bracket. Stopped to prevent the insulator from leaving.

  The insulator mounted by the insert method is characterized in that a guide pin mounted on the mounting groove of the bracket is formed on the upper end edge.

  In addition, the insulator mounted by the insert method is configured by an inner pipe, an outer pipe, and an elastic body inserted between the inner and outer pipes.

  The insulator mounted by the vulcanization joining method includes an elastic body and an inner pipe inserted into the elastic body in the axial direction, and the elastic body into which the inner pipe is inserted is integrated with the opening of the bracket. It is characterized by being vulcanized and joined.

  Preferably, the outer pipe of the insulator mounted by the bracket and insert method is made of a plastic material.

  The roll rod for automobiles according to the present invention is constituted by conventional forced press-fit mounting by assembling the bracket and the insulator by vulcanization joining and insert method that can prevent the surface coating damage between them. Compared with the roll rod, it is possible to fundamentally improve the deterioration of the rust prevention performance due to the surface damage of the bracket and the insulator.

  Moreover, since the outer pipe which comprised the conventional insulator can be excluded, the roll roll for motor vehicles of this invention can obtain the effect of weight and cost reduction by applying a vulcanization joining system.

It is the schematic which shows the mounting position of the conventional upper roll rod for motor vehicles. It is a perspective view which shows the conventional upper roll rod for motor vehicles. It is a flowchart which shows the manufacturing process of the conventional upper roll rod for motor vehicles roughly. It is a perspective view which shows the roll rod for motor vehicles by the Example of this invention. It is a perspective view which shows the roll rod for motor vehicles by the Example of this invention. 1 is a diagram illustrating a configuration of a front insulator according to an embodiment of the present invention. 1 is a view illustrating a mounting structure of a rear insulator according to an embodiment of the present invention. It is a principal part enlarged view which shows the mounting structure of the rear insulator by the Example of this invention.

  In order to improve the conventional roll rod for automobiles assembled in the forced press-fitting type, the present invention provides a rust preventive performance by attaching a front insulator and a rear insulator configured on both sides of a bracket to a vulcanized integrated type and an insert type. It is characterized by radical improvement.

  The roll rod for automobiles according to the present invention prevents the surface damage due to the press-fitting structure of the conventional roll rod, improves the rust prevention performance of the bracket and the insulator, and not only obtains the effect of weight and cost reduction by omitting parts, The strength and rigidity of the conventional roll rod can be maintained equally.

  Conventional steel press roll rods are low in price, but heavy and heavy, and there is a limit to improving rust prevention performance. Conventional aluminum squeeze casting roll rods have improved rust prevention performance. Although possible, an increase in weight and an increase in cost are inevitable.

  Therefore, the present invention fundamentally improves the rust prevention performance, and is configured in a lightweight type and a low price type as compared with the conventional roll rod, and further, performance such as strength and rigidity is compared with the conventional roll rod. Presents an automotive roll rod that can maintain the same level or better.

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

  As shown in FIGS. 4 and 5, the roll rod for an automobile according to the present invention includes a plastic bracket 100, and a front insulator 110 and a rear insulator 120 mounted on both sides of the bracket 100.

  One of the front and rear insulators 110 and 120 is attached to the bracket 100 by a vulcanization joining method, and the other is attached to the bracket 100 by an insert method.

  In the embodiment of the present invention, the front insulator 110 is mounted by a vulcanization adhesion method, and the rear insulator 120 is mounted by an insert method.

  Referring to FIG. 6, the front insulator 110 is configured by a rubber-made elastic body 112 and an inner pipe 111 inserted in the elastic body 112 in the axial direction. The elastic body 112 in which is inserted is fixed by being vulcanized and joined integrally to the opening 101 on one side of the bracket 100.

  That is, the front insulator 110 is formed by opening the bracket 100 in a state in which the inner pipe 111 and the elastic body 112 are integrally assembled as described above after the bracket 100 molded in a predetermined shape is integrally assembled with the mold. It is directly vulcanized and bonded to the part 101.

  The front insulator 110 is installed in the opening 101 of the bracket 100 by a vulcanization adhesion method, thereby eliminating the conventional outer pipe, simplifying the manufacturing process, and reducing the weight and material cost.

  Referring to FIG. 4, the rear insulator 120 includes a cylindrical inner pipe 122 and an outer pipe 123, and a rubber-made elastic body 121 inserted between the inner and outer pipes 122 and 123. And is attached to the opening 102 on the other side of the bracket 100 by an insert method.

  When the rear insulator 120 is inserted into the opening 102 of the bracket 100, the rear insulator 120 is naturally inserted and fitted by a conventional forced press-fitting method without artificially fitting and fitting.

  In other words, when the rear insulator 120 is inserted into the opening 102 of the bracket 100, the force is not forcedly applied, and the rear insulator 120 is disposed inside the opening 102 only by an insertion operation.

  For such an insert-type mounting structure, the outer peripheral surface of the rear insulator 120 and the opening 102 of the bracket 100 are preferably formed in a tapered shape as shown in FIG.

  As shown in FIG. 7, the rear insulator 120 is configured such that an outer pipe 123 disposed on the outer surface, that is, the outer side of the elastic body 121 is tapered, and the opening 102 of the bracket 100 is also formed in the form of the outer pipe 123. Correspondingly, a taper is formed.

  The outer pipe 123 of the rear insulator 120 and the opening 102 of the bracket 100 each have a diameter difference in the axial direction due to the tapered structure, and the rear insulator 120 can be easily formed in the opening 102 of the bracket 100 by the diameter difference. Can be inserted.

  In order to prevent the rear insulator 120 mounted by the insert method from being detached as described above, a plurality of locking protrusions 125 are formed on the outer peripheral surface of the outer pipe 123 in the circumferential direction, correspondingly. A groove 105 is formed in the opening 102 of the bracket 100 in a concave shape.

  The outer pipe 123 is formed of a plastic material like the bracket 100, so that when the outer pipe 123 is inserted into the opening 102 of the bracket 100, the locking protrusion 125 comes into sliding contact with the opening 102, As shown in FIG. 8, the rear insulator 120 inserted into the opening 102 of the bracket 100 is prevented from being detached after being assembled by the locking protrusion 125 being locked to the groove 105 of the bracket 100. Is done.

  It is preferable that the lower end of the locking protrusion 125 is tapered.

  Further, the outer pipe 123 has a guide pin 124 mounted on the mounting groove 104 of the bracket 100 at the upper end edge.

  Referring to FIGS. 4 and 7, the opening 102 of the bracket 100 has a mounting groove 104 formed in a concave shape on one side, and a guide pin 124 protrudes from the outer pipe 123 at a predetermined position. .

  When the rear insulator 120 is inserted into the opening 102 of the bracket 100, the guide pin 124 is mounted in the mounting groove 104 to prevent an erroneous assembly by guiding the assembly direction. To maintain.

  Due to the characteristics of the roll rod that controls the torque in the longitudinal direction of the vehicle, maintaining the directionality of the insulator maintains the NVH performance.

  The roll rod according to the present invention eliminates the conventional press-fitting structure by applying such an insert type assembly structure, and uses a plastic outer pipe 123 and a bracket 100 to prevent rust compared to the conventional roll rod. It improves performance, is effective for weight reduction and cost reduction, and can achieve the same level as conventional in terms of not only strength but also rigidity.

  The present invention can be applied to the field of automobile roll rods.

DESCRIPTION OF SYMBOLS 100 Bracket 101,102 Opening part 104 Mounting groove 105 Groove 110 Front insulator 111 Inner pipe 112 Elastic body 120 Rear insulator 121 Elastic body 122 Inner pipe 123 Outer pipe 124 Guide pin 125 Locking protrusion

Claims (7)

  It includes a front insulator and a rear insulator configured on both sides of the bracket and the bracket. One of the front and rear insulators is attached to the opening of the bracket by a vulcanization joining method, and the other is a bracket by an insert method. A roll rod for automobiles, characterized in that the roll rod is mounted on the opening of the vehicle.   The automobile according to claim 1, wherein the opening of the bracket is formed in a tapered shape, and the insulator mounted by the insert method is formed in a tapered shape corresponding to the tapered opening of the bracket. Roll rod for use.   The roll rod for automobiles according to claim 1, wherein the insulator mounted by the insert method is formed with a locking ridge locked on the groove of the bracket on the outer peripheral surface.   The roll rod for automobiles according to claim 1, wherein the insulator mounted by the insert method is formed with a guide pin mounted on the mounting groove of the bracket at an upper end edge.   2. The automobile roll rod according to claim 1, wherein the insulator mounted by an insert method includes an inner pipe, an outer pipe, and an elastic body inserted between the inner and outer pipes. .   The insulator mounted by the vulcanization joining method is composed of an elastic body and an inner pipe inserted into the elastic body in the axial direction, and the elastic body into which the inner pipe is inserted is integrally added to the opening of the bracket. The roll rod for automobiles according to claim 1, wherein the roll rod is subjected to sulfur bonding. The roll rod for an automobile according to claim 1, wherein an outer pipe of an insulator mounted by the bracket and the insert method is made of a plastic material.

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