Adjustable and flexible damper structure for instrument clusters

Abstract

Damping structure provides damping between a first component and a second component of an instrument cluster of a vehicle. The damping structure includes a resilient and flexible damper having a body with first and second opposing ends. The first end is closed and the second end is open to communicate with a generally cylindrical recess in the body. A holding member is coupled to and extends from the first component. The holding member includes a body having a recess therein. At least a portion of the body of the holding member is received in the recess of the damper, with the closed end of the damper covering the recess in the body of the holding member so as to trap air therein. When the first component is coupled to the second component, the closed end of the damper engages the second component so that the damper is under compression loading.

Description

FIELD

The invention relates to instrument clusters for vehicles and, more particularly, to damper structure for reducing noise when two or more parts of the instrument cluster are coupled together.

BACKGROUND

Conventional instrument clusters for vehicles typically include a mask coupled to a light housing by a latching connection. Such a connection may generate noticeable noise in the instrument cluster upon experiencing heat or vibration energy as a consequence of external energy or forces applied to the instrument cluster.

Thus, there is a need to provide adjustable, flexible damper structure between two components of an instrument cluster that are latched together to reduce noise.

SUMMARY

An objective of the invention is to fulfill the need referred to above. In accordance with the principles of the present invention, this objective is obtained by providing damping structure that provides damping between a first component and a second component of an instrument cluster of a vehicle. The damping structure includes a resilient and flexible damper having a body with first and second opposing ends. The first end is closed and the second end is open to communicate with a generally cylindrical recess in the body. A holding member is coupled to and extends from the first component. The holding member includes a body having a recess therein. At least a portion of the body of the holding member is received in the recess of the damper, with the closed end of the damper covering the recess in the body of the holding member so as to trap air therein. When the first component is coupled to the second component, the closed end of the damper engages the second component so that the damper is under compression loading.

In accordance with another aspect of an embodiment, an instrument cluster for a vehicle includes a mask and a housing coupled to the mask via a plurality of latch connections. Damping structure includes a resilient and flexible damper having a body with first and second opposing ends, the first end being closed and the second end being open to communicate with a generally cylindrical recess in the body, and a holding member coupled to and extending from the mask. The holding member includes a body having a recess therein. At least a portion of the body of the holding member is received in the recess of the damper, with the closed end of the damper covering the recess in the body of the holding member so as to trap air therein. The closed end of the damper engages the housing so that the damper is under compression loading.

In accordance with another aspect of an embodiment, a method of providing damping between first and second components of an instrument cluster of a vehicle provides a plurality of holding members coupled to and extending from the first component, each holding member including a body having a recess therein. A plurality of resilient and flexible dampers are provided with each damper having a body with first and second opposing ends, the first end being closed and the second end being open to communicate with a generally cylindrical recess in the body of the damper. Each damper is coupled to an associated holding member, with at least a portion of the body of the holding member being received in the recess of the associated damper and with the closed end of the damper covering the recess in the body of the holding member so as to trap air therein. The first component is coupled to the second component with the dampers sandwiched there-between under compression loading.

Other objects, features and characteristics of the present invention, as well as the methods of operation and the functions of the related elements of the structure, the combination of parts and economics of manufacture will become more apparent upon consideration of the following detailed description and appended claims with reference to the accompanying drawings, all of which form a part of this specification.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be better understood from the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings, wherein like reference numerals refer to like parts, in which:

FIG. 1 is a front view of an instrument cluster for a vehicle in accordance with an embodiment.

FIG. 2 is a front perspective view of a mask of the instrument cluster of FIG. 1.

FIG. 3 is a front perspective view of a light housing of the instrument cluster of FIG. 1.

FIG. 4A is a side perspective view of a damper of damper structure employed in the instrument cluster of FIG. 1.

FIG. 4B is a bottom perspective view of a damper of FIG. 4A.

FIG. 5 is a view of a post of the damper structure employed in the instrument cluster of FIG. 1.

FIG. 6 is a rear perspective view of the mask of the instrument cluster of FIG. 2, shown with the dampers ready to be installed to posts.

FIG. 7 is a sectional view of a portion of the mask of FIG. 6 shown with the damper structure installed.

FIG. 8 is a top sectional view of the instrument cluster of FIG. 1 showing the damper structure between the mask and the light housing.

FIG. 9 is an enlarged view of the portion encircled at 9 in FIG. 8.

FIG. 10A is a view of a damper provided in accordance with another embodiment.

FIG. 10B is a view of a damper provided in accordance with yet another embodiment.

FIG. 10C is a view of a damper provided in accordance with a further embodiment.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

With reference to FIGS. 1-3, an instrument cluster for a vehicle is shown, generally indicated at 10. The instrument cluster 10 includes a first component, such as a mask 12 and a second component 14, such as a light housing, coupled to the mask 12. In the embodiment, the mask 12 is coupled to the housing 14 by latch connections, with resilient tabs 16 on the housing 14 engaged in openings 18 in the mask 12 in the conventional manner. It can be appreciated that the tabs 16 can be on the mask 12 with the openings 18 provided in the housing 14 if desired.

With reference to FIGS. 4A and 4B, a resilient and flexible damper is shown generally indicated at 20. The damper 20 is preferably made from silicone rubber or any viscoelastic material. The damper 20 includes a generally cylindrical body 22 having opposing ends 24 and 26. End 26 is closed and end 24 is open to communicate with a generally cylindrical recess 28 in the body 22. The recess 28 is received by a holding member in the form of a post 30 that extends from the mask 12 (FIG. 5). Thus, the post 30 has a generally cylindrical body 31 with outer diameter that is less than the internal diameter of the recess 28. The post 30 also includes a generally cylindrical recess 33 therein, the function of which will be explained below.

As shown in FIG. 6, a plurality of posts 30 extend from bottom surface 32 of the mask 12, preferably adjacent to the openings 18 that receive the tabs 16 of the housing 14. The dampers 20 are also shown in FIG. 6, ready to be coupled to the posts 30. FIG. 7 shows a damper 20 engaged with a generally cylindrical body 31 of a post 30 defining damper structure, generally indicated at 34, in accordance with and embodiment. In particular, the open end 24 of the damper 20 is slid over the body 31 of the post 30 with the outer periphery of the body 31 being received in the recess 28 of the damper 20. The closed end 26 of the damper 20 covers a recess 33 defined in the body 31 of the post 30. Thus, a plurality of damper structures 34 may be provided at desired locations, preferably near the latch connections 16, 18, in the illumination cluster 10 to provide a damping function between the mask 12 and housing 14.

FIGS. 8 and 9 show the damper structure 34 engaged between the masks 12 and the housing 14 of the instrument cluster 10. As best shown in FIG. 9, the housing 14 has a surface 36 engaging the closed end 26 of the damper 20. When the damper 20 is sandwiched between the mask 12 and the housing 14, it is under compression loading. Thus, sidewall 38 of the damper 20 is permitted to buckle providing adjustment of the damper 20. Air is trapped in the recess 33 of the body 31 of post 30 and the viscoelastic material of the end 26 of the damper 20 provides a damping function. Under loading conditions, the damping structure 34 will decrease loading reaction and noise.

FIGS. 10A-10C show various alternative embodiments of the damper 20. For example the damper 20′ of FIG. 10, has an end 26 of generally rectangular shape, the damper 20″ of FIG. 10B has an end 26 of generally circular shape, and the damper 20′″ of FIG. 10C has an end 26 of generally conical shape. The shape of the dampers depends on specific performance, latching geometry, latching location in the cluster 10 and cluster mass distribution. It can be appreciated that the shape of the post 30 would be modified to correspond with the shape of the recess 28 in the damper so that the post can be received in the recess 28.

The foregoing preferred embodiments have been shown and described for the purposes of illustrating the structural and functional principles of the present invention, as well as illustrating the methods of employing the preferred embodiments and are subject to change without departing from such principles. Therefore, this invention includes all modifications encompassed within the spirit of the following claims.

Claims

1. An instrument cluster comprising:

a mask,

a housing coupled to the mask via a plurality of latch connections, and

damping structure comprising:

a resilient and flexible damper having a body with first and second opposing ends, the first end being closed and the second end being open to communicate with a generally cylindrical recess in the body, and

a holding member coupled to and extending from the mask, the holding member including a body having a recess therein, at least a portion of the body of the holding member being received in the recess of the damper, with the closed end of the damper covering the recess in the body of the holding member so as to trap air therein,

wherein, the closed end of the damper engages the housing so that the damper is under compression loading.

2. The instrument cluster of claim 1, wherein the damper is made from viscoelastic material.

3. The instrument cluster of claim 2, wherein the material is silicone rubber.

4. The instrument cluster of claim 1, wherein each of the body and recess of the damper is generally cylindrical and the body of the housing member is generally cylindrical.

5. The instrument cluster of claim 1, wherein each latch connection includes a tab on the housing that is received in an opening in the mask.

6. The instrument cluster of claim 5, wherein a plurality of damping structures are provided with at least one damping structure being located generally adjacent to a latch connection.

7. The instrument cluster of claim 1, wherein the housing includes a surface engaged by the closed end of the damper causing compression of the damper.