This invention generally relates to hinge devices. Specifically, it pertains to a dual stage hinge of a vehicle door that allows the door to open at least one hundred and eighty (180) degrees.
Vehicle door hinges are typically heavy-duty utilitarian hinges that allow the vehicle driver and passengers to enter and exit the vehicle in a routine manner. Vehicle doors are usually attached to the vehicle at the front edge of the vehicle door, and they swing outward from vehicle within a very limited horizontal range. Additionally, many vehicle doors are attached to the vehicle frame at two hinge connection points, which severely limits the doors range of motion.
Although vehicle door hinges are not always limited to less than ninety (90) degrees of opening range, currently very few hinges offer the ability to open a vehicle door over one hundred and sixty-eight (168) degrees.
When the rear doors of a vehicle with more than two (2) doors, such as a sedan, open by swinging out towards the back of the vehicle, such doors are called “suicide doors.” Currently no hinge offers the ability to open a suicide door over one hundred and sixty-eight (168) degrees. Moreover, the hinges that are available to be installed in rear doors to convert them into suicide doors are, typically, only compatible with four (4) door trucks, and are not compatible with four (4) door sedans. This incompatibility arises because the currently available hinges are too bulky to work with the arch cut shape of a typical sedan's rear doors.
In the area of dual stage vehicle door hinges, one type that is available is disclosed by U.S. Pat. No. 6,942,277, issued to Rangnekar, et al. (Rangnekar). However, Rangnekar discloses a pair of lightweight hinges that are connected with a rod. Additionally, the Rangnekar hinge is bulky and not designed to fit virtually every production model vehicle. The Rangnekar hinge also has a door stop mechanism that is external to the hinge housing. Finally, the Rangnekar hinge does not feature an adjustable maximum opening stop.
Thus, there remains a long felt need in the art for a dual stage vehicle door hinge that: allows a vehicle door to be opened at least one hundred and eighty (180) degrees; is compact; fits most production model vehicles, is inexpensive; is easy to install; is adjustable; and is off-the-shelf available.
To minimize the limitations in the prior art, and to minimize other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a dual stage vehicle door hinge that: allows a vehicle door to be opened at least one hundred and eighty (180) degrees; is compact; fits most production model vehicles, is inexpensive; is easy to install; is adjustable; and is off-the-shelf available.
One embodiment of this invention is a dual stage vehicle door hinge, comprising: a chassis housing; a door housing; a first stage hinge housing; a second stage hinge housing; a first stage hinge pin; a second stage hinge pin; a swing arm; a maximum opening stop wing; a maximum opening stop unit; a sequential hinge control device; a maximum opening stop adjuster; a hinge friction device; and a closing stop adjuster. The swing arm has a chassis end and a door end. The first stage hinge pin, the first stage hinge housing, and the swing arm chassis end comprise a first stage hinge axis. The second stage hinge pin, the second stage hinge housing, and the swing arm door end comprise a second stage hinge axis. The swing arm chassis end is connected to the first stage hinge pin and the swing arm door end is connected to the second stage hinge pin. The chassis housing and the door housing are open on a front side. The chassis housing is attached to a vehicle chassis and the door housing is attached to a vehicle door. The maximum opening stop wing is attached to the swing arm door end. The maximum opening stop unit is attached to the second stage hinge housing. A second stage opening movement is stopped when the maximum opening stop wing swings into contact with the maximum opening stop unit. The maximum opening stop adjuster is attached to the maximum opening stop wing and the second stage opening movement is stopped when the maximum opening stop adjuster contacts the maximum opening stop unit. The sequential hinge control device comprises a sequential hinge control arm, a sequential hinge control door end lever, a sequential hinge control chassis end lever, and a sequential hinge control pin. The sequential hinge control device has a right angle hook finger that controls a beginning of said second stage opening movement. The sequential hinge control device requires that a completely closed vehicle door have an opening sequence that comprises a first stage opening movement and the second stage opening movement. The first stage opening movement is on the first stage hinge axis and the second stage opening movement is on the second stage hinge axis. The sequential hinge control device requires that a completely open vehicle door have a closing sequence that comprises a first stage closing movement and a second stage closing movement. The first stage closing movement is on the second stage hinge axis. The second stage closing movement is on the first stage hinge axis. The first stage opening movement opens the vehicle door approximately ninety (90) degrees from a closed position and the second stage opening movement does not begin until the first stage opening movement is complete. The second stage opening movement begins after the first stage opening movement is complete and opens the vehicle door at least one hundred eighty (180) degrees from the closed position. The chassis housing and door housing nest in a front side to front side manner, when the vehicle door is completely closed and the dual stage vehicle door hinge is completely enclosed within the chassis housing and the door housing. The closing stop adjuster is connected to the swing arm. The closing stop adjuster stops the first closing movement and allows the second closing movement to begin. The hinge friction device comprises a hinge friction roller and a hinge friction resistance unit. The hinge friction roller is attached to the swing arm and the hinge friction resistance unit is attached to the first stage hinge housing. The hinge friction device provides resistance to the first stage opening movement and resistance to the second stage closing movement. The dual stage vehicle door hinge is attached to a rear vehicle door. The dual stage vehicle door hinge is attached to a rear side of a vehicle door.
An object of the present invention is to provide a vehicle door that will overcome the deficiencies of the prior art.
Another object of the present invention is to provide a dual stage vehicle door hinge that allows a vehicle door to open at least one hundred and eighty degrees.
Another object of the present invention is to provide a vehicle door hinge that is compact and compatible with a four (4) door sedan's rear doors.
Another object of the present invention is to provide a vehicle door hinge that is safe and easy to use, and allows for safe and easy entrance and exit from the vehicle.
Another object of the present invention is to provide a durable vehicle door hinge that may be used by a wide variety of people regardless of their body size or strength. Indeed, the invention is well suited to allow people with physical disabilities to have easier access to the interior of their vehicle.
Another object of the present invention is to provide a compact inexpensive, easy to install, and off-the-shelf vehicle door hinge that can be installed on a vehicle door to convert the door into a suicide door.
Other features and advantages are inherent in the vehicle door hinge claimed and disclosed will become apparent to those skilled in the art from the following detailed description and its accompanying drawings.
In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings that form a part hereof, and in which is shown, by way of illustration, a specific embodiment in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention.
In the following detailed description of various embodiments of the invention, numerous specific details are set forth in order to provide a thorough understanding of various aspects of one or more embodiments of the invention. However, one or more embodiments of the invention may be practiced without these specific details. In other instances, well-known methods, procedures, and/or components have not been described in detail so as not to unnecessarily obscure aspects of embodiments of the invention.
In the following description, certain terminology is used to describe certain features of one or more embodiments of the invention. For instance “adjuster” refers to any adjustment device, such as a pin or screw, that once adjusted remain in place until purposefully readjusted.
The parts of dual stage hinge 30 are preferably made of metal alloy, but they can be made from any natural or synthetic material, including, but not limited to: metal; metal alloy; wood or other fibrous plant products; glass; composite materials such as graphite, fiberglass, boron, or Kevlar; admixtures of plastic resins combined with metal, metal alloy, wood or other fibrous plant products, glass, or composite materials; plastic; animal materials; or any combination of these materials, without departing from the scope of the present invention. Preferably the materials that the parts of dual stage hinge 30 are made of will support the weight of a vehicle door that is open at least one hundred and eighty (180) degrees.
As shown in
To provide compact and internal friction to the opening and closing movements of the dual stage hinge, hinge friction roller 320 slides along friction resistance unit 330 during the first stage opening movements and the second stage closing movements.
Finally,
Dual stage hinge 30, as shown in the preferred embodiment in
Second stage hinge axis 415 comprises second stage hinge pin 417, the door end of swing arm 300, and an edge of second stage hinge housing 400.
As shown in
Preferably the closing movements of dual stage hinge 30 are a mirror image of the opening movements. That is, the second stage hinge of the opening movement is the first to close and the first stage hinge of the opening movement is the second to close. The first stage closing movement, which involves second stage hinge axis 415, is accomplished by second stage hinge housing 400 (along with door housing 200) swinging back toward chassis housing 210. The first stage closing movement is stopped when second stage hinge housing 400 contacts closing stop adjuster 420. Once the first stage closing movement is stopped, the second stage closing movement, which involves the first stage hinge axis, begins. The second stage closing movement is complete when the door is completely closed.
Sequential hinge control device 310 is very similar to sequential hinge control devices known in the art, however, sequential hinge control device 310 is improved over the prior art because of the unique finger shape at the chassis end of sequential hinge control device 310. The very tip of the chassis end of sequential hinge control device 310, as shown in
Preferably the closing movements of dual stage hinge 30 are a mirror image of the opening movements. That is, the second stage hinge of the opening movement is the first to close and the first stage hinge of the opening movement is the second to close. The first stage closing movement starting from the fully open position, which involves second stage hinge axis 415, is accomplished by the second stage housing 400 (along with door housing 200) swings back toward chassis housing 210 pivoting on axis 415 until contacting the closing stop adjuster 420. Once the first stage closing movement is stopped, the sequential hinge control device 310 pivoting on sequential hinge control pin 350 motivated by sequential hinge control tension spring 435 to bring sequential hinge control door end lever 311 into the profile opening provided by the closing of the second stage which moves the chassis end of sequential hinge control device 310 out and away from sequential hinge control chassis pin 445 so that the second stage closing movement, which involves the first stage hinge axis 216 begins. The second stage closing movement is complete when the door is completely closed. This sequential control of first stage hinge axis 216, and second stage hinge axis 415 by interaction of the sequential hinge control device 310 with all of the elements described ensure that the opening and closing movements of dual stage hinge 30 are done smoothly and in the appropriate order.
In summary, the present invention is a dual stage hinge that: allows a vehicle door to be opened at least one hundred and eighty (180) degrees; is compact; fits most production model vehicles, is inexpensive; is easy to install; is adjustable; and is off-the-shelf available.
The foregoing description of the preferred embodiment of the invention has been presented for the purposes of illustration and description. While multiple embodiments are disclosed, still other embodiments of the present invention will become apparent to those skilled in the art from the above detailed description, which shows and describes illustrative embodiments of the invention. As will be realized, the invention is capable of modifications in various obvious aspects, all without departing from the spirit and scope of the present invention. Accordingly, the detailed description is to be regarded as illustrative in nature and not restrictive. Also, although not explicitly recited, one or more embodiments of the invention may be practiced in combination or conjunction with one another. Furthermore, the reference or non-reference to a particular embodiment of the invention shall not be interpreted to limit the scope the invention. It is intended that the scope of the invention not be limited by this detailed description, but by the claims and the equivalents to the claims that are appended hereto.
Priority is claimed to U.S. Provisional Patent Application Ser. No. 60/983,922, filed on Oct. 30, 2007, and titled “Improvements on a Dual Stage Hidden Hinge.” This priority application is incorporated by reference herein as though set forth herein in full.
Number | Date | Country | |
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60983922 | Oct 2007 | US |