| Angle-adjusting apparatus for a housing of headrest display -> Monitor Keywords |
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Angle-adjusting apparatus for a housing of headrest displayAngle-adjusting apparatus for a housing of headrest display description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070057541, Angle-adjusting apparatus for a housing of headrest display. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to an angle-adjusting apparatus for a housing of a headrest display, and more particularly to a housing that is adapted to the headrest in an automobile to allow for a fine adjustment of the view angle. [0003] 2. Description of the Related Art [0004] For the recent years, miniaturization features the developments of the display. The LCD displays have been widely installed in the automobiles. If the display is mounted at the front side of the automobile, it usually mounted on the top of the front panel of the car or embedded therein. The display is pulled out when used. If the display is installed in the area of the rear seat, it will be usually installed at the center handrail of the front seat or under the roof, and the display can be pulled out of the roof when used. [0005] If the display is installed under the roof for the rear seat passengers, the rearview mirror can't provide the driver with a complete view of the area behind the vehicle when driving. If the display is installed at the center handrail of the front seat, it will make the limited space of the rear seat even smaller. [0006] As shown in FIG. 1, TW 520723 discloses a headrest display 11 that is fixed on a headrest 13 of the front seat by a positioning apparatus 12. Meanwhile, the view angle of the headrest display 11 can be adjusted by an adjusting apparatus 14. However, the headrest display 11 protrudes from the rear surface of the headrest 13, thereby occupying much space and affecting the whole appearance inside the car. [0007] As shown in FIGS. 2 and 3, U.S. Pat. No. 5,507,556 discloses a display 21 that is embedded in the back rest 22. A shift plate 23 is provided within the back rest 22 for fixing the display 21 in place. Both sides of the top of the shift plate 23 are pivotally coupled to two projecting ears 24 within the back rest 22. Thus, an angle adjustment of the shift plate 23 can be ensured by use of the projecting ears 24 at the top side thereof. However, the adjustment requires a built-in cable wire 25 and other components. Meanwhile, the back rest 22 has to be tilted backward for angle adjustment of the display 21. Therefore, the rear seat passengers can't directly adjust the view angle of the display 21. So, this conventional apparatus is more suitable for the application to the seats of airplanes, but not for the seat of automobiles. Moreover, the display 21 can't be removed for use elsewhere, thereby limiting the range of its use. [0008] The applicant of the invention discloses a similar apparatus titled "VIEW ANGLE ADJUSTABLE DETACHABLE DISPLAY ASSEMBLY" in US 20050140845. It teaches a display installed at the rear side of the headrest of the front seat. When the display is used by the rear seat passenger, it doesn't occupy much space and won't affect the view of the area behind the vehicle via the rear-view mirror. This prior art comprises mainly an external housing, an internal housing and a display. Meanwhile, it is characterized in that the internal housing can be turned at an angle within the external housing. Moreover, the display can be removed out of the internal housing. However, the assembly and the space arrangement of the internal and external housings leave still much to be desired. Accordingly, the dimensions of the external housing can't be reduced for the installation of the display on a smaller headrest in a European automobile. In addition, means for adjusting the view angle by turning the internal housing is too simple. After use for a certain period, the mechanism is easily loosened, thereby affecting the angle-adjusting precision and lowering the service life of this apparatus. [0009] In view of the foregoing shortcomings of the prior art, the inventor of the present invention conducted extensive experiments and tests to overcome the shortcomings and to achieve the installation of the housing on the rear side of a small type headrest. SUMMARY OF THE INVENTION [0010] A primary object of the invention to provide an angle-adjusting apparatus for a housing of a headrest display that can be embedded in a rear side of a headrest and allow for a convenient adjustment of the display upward or downward for achieving an optimal view angle. [0011] Another object of the present invention to provide an angle-adjusting apparatus for a housing of a headrest display that includes a plurality of positioning mechanisms to allow for an accurate adjustment of the view angle. In addition, the apparatus won't be loosened after used for a certain period or when driving on an uneven road, thereby prolonging the service life of the apparatus. [0012] In order to achieve the above-mentioned objects, an angle-adjusting apparatus for a housing of a headrest display comprises: [0013] a) an external housing having an opening at the outer side thereof, a cavity being formed and two sleeves being symmetrically arranged at both sides thereof, a spring element being provided at a top and a bottom side of the cavities, the spring element having a first projecting rib longitudinally extending at an internal side thereof; [0014] b) an internal housing having a front and a rear portion with an internal room for installing a display, a groove and two positioning sleeves corresponding to the cavities of the external housing being disposed at both sides of the internal housing, the internal housing further having a plurality of second projecting ribs at a position corresponding to the spring element; and [0015] c) a left link element and a right link element formed in a symmetric manner and received within the cavities of the external housing, respectively. Each of the left and right link elements includes an external and an internal link portion both of which are locked on the external and internal housings, respectively, for a pivotal connection. And the joining end is limited to the lowest point so that a room is reserved to install the display in the small headrest. BRIEF DESCRIPTION OF THE FIGS [0016] FIG. 1 is a perspective view of a prior art in accordance with TW 520723; [0017] FIG. 2 is a perspective view of another prior art in accordance with U.S. Pat. No. 5,507,556; [0018] FIG. 3 is a perspective view of the internal structure of the prior art in accordance with U.S. Pat. No. 5,507,556; [0019] FIG. 4 is a perspective view of the invention that is embedded in a headrest of an automobile; [0020] FIG. 5 is a perspective view of an angle-adjusting apparatus for a housing of a headrest display in accordance with the invention; [0021] FIG. 6 is an exploded perspective view of an external and an internal housing in accordance with the invention; Continue reading about Angle-adjusting apparatus for a housing of headrest display... Full patent description for Angle-adjusting apparatus for a housing of headrest display Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Angle-adjusting apparatus for a housing of headrest display patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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