Over slam bumper assembly

An over slam bumper assembly includes a reinforcement member mounted on a door panel, and an over slam bumper including a first portion disposed between the door panel and the reinforcement member and a second portion disposed between the door panel and a vehicle body to contact the vehicle body when a door is closed.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to Korean Patent Application No. 10-2017-0044744, filed on Apr. 6, 2017, the entire contents of which is incorporated herein for all purposes by this reference.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to an over slam bumper assembly.

Description of Related Art

In general, a door of a vehicle includes a reinforcement member for reinforcing the strength of a door panel, and an over slam bumper for alleviating an impact and noise that are generated when the door is closed.

The reinforcement member has a beam structure, and is mounted in the internal of the door panel in a lengthwise direction of the vehicle. The over slam bumper is formed of an elastic material that may be elastically deformed, and is mounted on the door panel to face the vehicle body. Further, a recessed contact part is formed in the vehicle body such that the over slam bumper elastically contacts the contact part when the door is closed.

However, when a quality defect or other defects occur in the reinforcement member, an intrusion degree by which the door intrudes into the internal of the vehicle (hereinafter, referred to as effects occur in the reinforcement member, an intrusion degree by which the door intrudes into the internal of bumper is formed of an elastic material that may be elastically deformed, and is mounted to passengers.

To solve this, a method for installing a hook provided to be stopped by a stopping recess formed in the vehicle body in the door panel to reduce an intrusion degree of the door has been used

However, the hook increases the manufacturing costs and weight of the vehicle and badly influences an external design of the vehicle due to the stopping recess.

Further, the over slam bumper badly influences the external design of the vehicle as the contact part is exposed to the outside when the door is opened.

BRIEF SUMMARY

Various aspects of the present invention are directed to providing an over slam bumper assembly that has an improved structure to reduce the manufacturing costs and weight of a vehicle.

Various aspects of the present invention are directed to providing an over slam bumper assembly that has an improved structure to reduce an intrusion degree of a door when a lateral collision occurs.

Various aspects of the present invention are directed to providing an over slam bumper assembly that improves an external design of a vehicle.

The technical objects of the present invention are not limited to the above-mentioned one, and the other unmentioned technical objects will become apparent to those skilled in the art from the following description.

In accordance with an aspect of the present invention, there is provided an over slam bumper assembly including a reinforcement member mounted on a door panel, and an over slam bumper including a first portion disposed between the door panel and the reinforcement member and a second portion disposed between the door panel and a vehicle body to contact the vehicle body when a door is closed.

The over slam bumper may further include a third portion connecting the first portion and the second portion and inserted into a first insertion hole formed in the door panel.

The third portion may have a first insertion groove formed on an external peripheral surface thereof such that an internal peripheral surface of the first insertion hole is fitted with and coupled to the external peripheral surface of the third part.

The over slam bumper assembly may further include a coupling member coupling the over slam bumper and the door panel.

The coupling member may include a bolt screw-coupling the over slam bumper and the door panel.

The reinforcement may include a first bolt hole punched such that a screw part of the coupling member is coupled to the first bolt hole, and the over slam bumper may include a second bolt hole punched such that the screw part of the coupling member is coupled to the second bolt hole.

The over slam bumper may be formed of an elastic material that is elastically deformed.

The over slam bumper assembly may further include a support member mounted on the vehicle body to contact the second portion when the door is closed.

The support member may be mounted in a second insertion hole formed in the vehicle body to be separable from the second insertion hole.

The support member may include at least one stopping hook formed on one surface thereof to be coupled to an internal peripheral surface of the second insertion hole to be stopped.

The second portion may have a second insertion groove formed on an external peripheral surface thereof such that an internal peripheral surface of the second insertion hole is fitted with and coupled to the external peripheral surface of the support member.

The second portion may have an external diameter that is the same as or smaller than an internal diameter of the second insertion hole.

DETAILED DESCRIPTION

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Throughout the specification, it is noted that the same or like reference numerals denote the same or like components even though they are provided in different drawings. Further, in the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, terms, such as first, second, A, B, (a), (b) or the like may be used herein when describing components of the present invention. The terms are provided only to distinguish the elements from other elements, and the essences, sequences, orders, and numbers of the elements are not limited by the terms. In addition, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meanings as those generally understood by those skilled in the art to which the present invention pertains. The terms defined in the generally used dictionaries should be construed as having the meanings that coincide with the meanings of the contexts of the related technologies, and should not be construed as ideal or excessively formal meanings unless clearly defined in the specification of the present invention.

FIG. 1is a view illustrating a state in which an over slap bumper assembly according to an exemplary embodiment of the present invention is mounted to a vehicle.FIG. 2is a sectional view taken along line X-X ofFIG. 1, which illustrates a state in which a door of the vehicle ofFIG. 1is closed.

As illustrated inFIG. 1andFIG. 2, the over slam bumper assembly1of the present invention may include a reinforcement member110mounted on a door panel10, an over slap bumper120disposed between the reinforcement member110and a vehicle body, a coupling member130configured to couple the reinforcement member110and the over slap bumper120, and a support member140configured to support the over slap bumper120.

First, the reinforcement member110is a member for reinforcing a strength of a door of the vehicle (hereinafter, a door).

The reinforcement member110has an impact beam structure having a circular or polygonal pipe shape, and is mounted in the internal of the door panel10along a lengthwise direction of the vehicle body20. However, the shape and mounting locations of the reinforcement member110are not limited thereto.

Here, the door panel10is a member including an internal panel10aand an external panel to form an external appearance of the door, and is mounted to the door to face a side external member22of the vehicle body20when the door is closed. The door panel10includes a first insertion hole11that is punched such that the over slam bumper120, which will be described below, is inserted into the first insertion hole11.

The vehicle body20is a member forming an external appearance of the vehicle, and the side external member22forms a side surface of the vehicle body200. Further, the side external door22has a second insertion hole21that is punched such that the support member140, which will be described below, is inserted into the second insertion hole21.

The reinforcement member110includes a first bolt hole111that is punched such that a screw part131of the coupling member130, which will be described below, is inserted into the first bolt hole111. A screw thread that may be coupled to a screw thread of the screw part131is formed on an internal peripheral surface of the first bolt hole111.

When a collision target object including another travelling vehicle or a collision test target object, collides a side surface of the vehicle, on which the over slap bumper assembly1is mounted, the reinforcement member110enhances a safety of a passenger by absorbing impact energy applied by the collision target object.

FIG. 3is a front view of the over slap bumper ofFIG. 2.FIG. 4is a sectional view taken along line X-X ofFIG. 1, which illustrates a state in which a door of the vehicle ofFIG. 1is opened.FIG. 5is a sectional view taken along line X-X ofFIG. 1, which illustrates a state in which a lateral collision occurs on a side surface of the door of the vehicle ofFIG. 1.

Next, the over slam bumper120is a member for reducing an intrusion degree of the reinforcement member110when a lateral collision occurs.

The structure of the over slap bumper120is not specifically limited. For example, the over slap bumper120may include a first portion121disposed between the door panel10and the reinforcement member110, a second portion122disposed between the door panel10and the vehicle body20to contact the vehicle body20when the door is closed, a third portion123connecting the first portion121and the second portion122, and a second bolt hole124, to which the coupling member130, which will be described below, is coupled. The over slam bumper120may be formed of an elastic material to alleviate an impact and noise when the door is closed.

The first portion121is located between the reinforcement member110and the door panel10. The first portion121is fixed to the reinforcement member110by the coupling member130, which will be described below.

The second portion122is located between the door panel10and the side external member22. As illustrated inFIGS. 2 and 4, the second portion122has a specific size to elastically contact the support member140, which will be described below, only when the door is closed, and not to contact the support member140when the door is opened. As illustrated inFIG. 5, the second portion122has an external diameter that is the same as or smaller than the internal diameter of the second insertion hole21such that the second portion122may be inserted into the second hole21when the support member140is separated from the second insertion hole21of the side external member22.

The third portion123is formed between the first portion121and the second portion122to connect the first portion121and the second portion122, and is inserted into the first insertion hole11of the door panel10. The third portion123has a first insertion groove123such that the internal peripheral surface of the first insertion hole11may be fitted with and coupled to the external peripheral surface of the third portion123. The over slam bumper120is mounted on the door panel10through the insertion coupling.

The second bolt hole124is punched at a lower portion of the over slam bumper120to couple the screw part132of the coupling member130, which will be described below. As illustrated inFIG. 2, the second bolt hole124extend from a bottom surface of the first portion121to an intermediate part of the second portion122, but the present invention is not limited thereto.

A screw thread that may be coupled to a screw thread of the screw part132is formed on an internal peripheral surface of the second bolt hole124. As such, as illustrated inFIG. 2, the reinforcement member110and the over slam bumper120may be screw-coupled to each other by coupling the screw part132of the coupling member130, which passed through the first bolt hole111, to the second bolt hole124.

Next, the coupling member130is a member for coupling the reinforcement member110and the over slam bumper120.

As illustrated inFIGS. 2 and 4, the coupling member130may include a bolt that may screw-couple the reinforcement member110and the over slam bumper120. However, the present invention is not limited thereto, but the coupling member130may include any one of various members that may couple the reinforcement member110and the over slam bumper120. Hereinafter, a case in which the coupling member130includes a bolt will be described below as an example of the present invention.

The coupling member130may include a head part131and a screw part132.

The head part131has a shape of a flange, and has a diameter that is greater than those of the first bolt hole111and the second bolt hole124. The screw part132extends from the head part131, and has a screw thread formed on an external peripheral surface thereof.

As illustrated inFIG. 2, the head part131of the coupling member130is located in the internal of the reinforcement member110and the screw part132of the coupling member130passes through the first bolt hole111and protrudes towards the vehicle body20wherein the head part131is fixed to an internal surface of the reinforcement member110through welding, but the present invention is not limited thereto. The second bolt hole124of the over slam bumper120may be coupled to the screw part132protruding towards the vehicle body20, and through this, the coupling member130may screw-couple the reinforcement member110and the over slam bumper120.

Next, the support member140is a member for supporting the over slam bumper120from the vehicle body20when the door is closed.

The support member140may include a grommet that is detachably provided in the second insertion hole21of the vehicle body20. However, the present invention is not limited thereto, but the support member140may include any one of various members that may be coupled to the second insertion hole21. Hereinafter, a case in which the support member140includes a grommet will be described below as an example of the present invention.

The support member140has a flat plate shape that is provided to contact the second portion122of the over slam bumper120when the door is closed. The support member140may include at least one stopping hook141formed on one surface thereof to be coupled to the internal peripheral surface of the second insertion hole21to be stopped by the second insertion hole21. Accordingly, as illustrated inFIGS. 2 and 4, the support member140is mounted in the second insertion hole21by the stopping hook141to be separable from the second insertion hole21. As such, the support member140supports the second portion122of the over slam bumper120from the vehicle body20when the door is closed, and the second insertion hole21is closed by the support member140. The support member140may efficiently prevent curving of the vehicle body as compared with the case in which a contact part supporting the over slam bumper120is directly formed in the vehicle body20.

Hereinafter, operational aspects of the over slam bumper assembly1will be described according to states of the vehicle.

First, as illustrated inFIG. 4, when the door is opened, the door panel10is rotated in a direction in which the door panel10becomes farther from the side external member22. Accordingly, the over slam bumper120does not contact the support member140.

Next, as illustrated inFIG. 2, when the door is closed, the door panel10is rotated in a direction in which the door panel10becomes closer to the side external member22. Accordingly, the over slam bumper120elastically contacts the support member140, and the support member140supports the over slam bumper120from the vehicle body20.

Next, when a lateral collision occurs while the door is closed, the reinforcement member110is deformed towards the side external member22as illustrated inFIG. 5. Accordingly, the over slam bumper120presses the support member140with a force that is strong as compared with the case in which the door is closed, and the support member140is separated from the second insertion hole21while being deformed by the over slam bumper120. As such, as the door panel10is stopped by the vehicle body20while the second portion122of the over slam bumper120is inserted into the second insertion hole21, an intrusion degree by which the door panel10and the reinforcement member110intrude towards the internal of the vehicle may be reduced. Accordingly, because the over slam bumper assembly1may reduce the intrusion degree of the door even though the hook structure mounted on the door panel, which has been described in the related art, to reduce the intrusion degree of the door, the manufacturing costs and weight of the vehicle may be reduced as compared with the case in which the hook structure is provided.

FIG. 6is a sectional view illustrating a state in which a door of a vehicle, in which an over slam bumper assembly according to another exemplary embodiment of the present invention is disposed.FIG. 7is a sectional view illustrating a state in which an external impact is applied to the door of the vehicle ofFIG. 6.

The over slam bumper assembly2according to the various exemplary embodiments of the present invention is different form the over slam bumper assembly1, which has been already described in the shape of the support member150, and the other contents thereof are the same as those of the above-described over slam bumper assembly1.

The support member150may include a second insertion groove151that is recessed on an external peripheral surface thereof to be inserted into and coupled to the internal peripheral surface of the second insertion hole21. Accordingly, as illustrated inFIG. 6, the support member150is mounted in the second insertion hole21through the second insertion groove151to be separable from the second insertion hole21to support the second portion122of the over slam bumper120from the vehicle body20when the door is closed, and the second insertion hole21is closed by the support member150. Further, as illustrated inFIG. 7, when a lateral collision occurs, the support member may be pressed by the second portion122of the over slam bumper120to be separated from the second insertion hole21, and the second portion122of the over slam bumper120may be inserted into the second insertion hole21.

The detailed operational aspects of the over slam bumper assembly according to the various exemplary embodiments of the present invention are the same as those of the above-described over slam bumper assembly, and accordingly, a detailed description thereof will be omitted.

The over slam bumper assembly according to an exemplary embodiment of the present invention has the following effects.

First, the present invention may alleviate an impact and noise when a door is closed through an over slam bumper and reduce an intrusion degree of the door when a lateral collision occurs, by mounting the over slam bumper between the reinforcement member of the door and the vehicle body.

Second, the present invention may improve an external design of the vehicle as compared with a case in which a contact part supporting an over slam bumper is directly formed, by separately mounting a support member supporting an over slam bumper on the vehicle body.

The above description is a simple exemplification of the technical spirit of the present invention, and the present invention may be variously corrected and modified by those skilled in the art to which the present invention pertains without departing from the essential features of the present invention.