1. Field of the Invention
The present invention generally relates to a vehicle door check link mechanism that limits a door opening amount of a vehicle door to a prescribed door opening angle or amount. More specifically, the present invention relates to a vehicle door check link mechanism that includes a releasable link member so that the vehicle door can be selectively opened past the prescribed door opening angle as needed and/or desired.
2. Background Information
Check link mechanisms are typically used in cooperation with hinges to allow a vehicle door, such as a rear cargo door of a van, to be retained at a predetermined position along a path of door opening movement permitted by the hinge. A typical check link mechanism generally includes a door side mounting portion having a check assembly that slidably engages an arm, and a body side mounting portion containing a release lever that selectively attaches to the distal end of the arm. This type of check assembly can further include a pair of cam followers that are biased together to slide along a channel formed on the upper and lower surfaces of the arm. Thus, the check assembly limits the opening of the vehicle door to an intermediate position. When further opening of the vehicle door is desired, the release lever can be operated to detach the distal end of the arm from the body side mounting portion. When the arm is detached, the hinge allows the vehicle door to rotate to the fully open position.
Although a typical check assembly can limit opening of a vehicle door, the release lever of this type of check assembly can be released at any degree of opening of the vehicle door. Accordingly, if the release lever is released before the vehicle door is open to the intermediate position, the check assembly will not limit opening of the vehicle door to the intermediate position. Rather, the vehicle door may inadvertently swing open beyond the intermediate position. This can result in, for example, damage to the vehicle door hinges if the vehicle door swings open too quickly and overextends the hinges. Also, the vehicle door itself can become damaged by striking an object, such as a wall, pole or other vehicle, that may be located in the path of the vehicle door between the intermediate and fully open positions.
In view of the state of the known technology, one aspect of the present disclosure is to provide a vehicle door check link mechanism that basically comprises a vehicle mounting member, a vehicle door mounting member, a link member and a latch member. The vehicle mounting member is configured to be mounted to a vehicle. The vehicle door mounting member configured to be mounted to a vehicle door. The link member is pivotally coupled to one of the vehicle mounting member and the vehicle door mounting member to pivot through a pivotal movement range about a pivot axis, and the link member is slidably coupled to the other one of the vehicle mounting member and the vehicle door mounting member. The latch member is operatively coupled between the link member and the one of the vehicle mounting member and the vehicle door mounting member that is pivotally coupled to the link member, and the latch member is movably configured and arranged to move between a latched position that retains the link member and a released position that releases the link member. Also, the latch member and the link member are configured and arranged with respect to each other to prevent the latch member from moving from the latched position to the released position while the link member is disposed within a first prescribed angle of the pivotal movement range and to permit the latch member to move from the latched position to the released position while the link member is disposed within a second prescribed angle of the pivotal movement range. The first and second prescribed angles are non-overlapping angles of the pivotal movement range.
Referring now to the attached drawings which form a part of this original disclosure:
Selected embodiments will now be explained with reference to the drawings. It will be apparent to those skilled in the art from this disclosure that the following descriptions of the embodiments are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.
Referring initially to
As seen in
As explained below in further detail, the vehicle door check link mechanism 22 is configured to limit movement of the rear door 16 to an intermediate position that corresponds to a prescribed door opening angle. When further movement of the rear door 16 is desired, the vehicle door check link mechanism 22 can be set to a released position such that the hinges 18 and 20 allows the rear door 16 to rotate to a fully open position.
As seen in
The lower hinge 20 further includes a door mounting bracket 52 that is coupled to the rear door 16 by fastening members 54. The fastening members 54 can include a plurality of bolting arrangements that each include, for example, a bolt 56, a nut 58 and at least one washer 60. Each bolt 56 passes through a corresponding opening (not shown) in the vertical edge 36 of the rear door 16, and the nut 58 secures the bolt 56, and thus the door mounting bracket 52, to the vertical edge 36. Naturally, the door mounting bracket 52 can be secured to the vertical edge 36, or at any other suitable location on the rear door 16, by rivets, screws, welds or any other suitable fastener.
The lower hinge 20 also includes a first hinge member 62 and a second hinge member 64. The first hinge member 62 is pivotally coupled to the vehicle mounting bracket 42 at a first pivot point A by a first pivot pin 66. The first hinge member 62 is pivotally coupled to the door mounting bracket 52 at a second pivot point B by a second pivot pin 68. The second hinge member 64 is pivotally coupled to the vehicle mounting bracket 42 at a third pivot point C by a third pivot pin 70. The second hinge member 64 is pivotally coupled to the door mounting bracket 52 at a fourth pivot point D by a fourth pivot pin 72.
As indicated in
As shown in
Further details of the vehicle door check link mechanism 22 will now be described with regard to
As seen in FIGS. 5 and 9-25, the vehicle door check link mechanism 22 basically includes a vehicle mounting member 80, a vehicle door mounting member 82, a link arm or member 84, a pivot pin 86 which can also be referred to as a link projection, a latch member 88 and a torsion spring or biasing element 90. The vehicle mounting member 80 is configured to be mounted to the vehicle 10 by fastening members 92. The fastening members 92 can include a plurality of bolting arrangements that each include, for example, a bolt 94 and a nut 96. Each bolt 94 passes through a corresponding opening (not shown) in the vehicle body 38, and the nut 96 secures the bolt 94, and thus the vehicle mounting member 80, to the vehicle body. Naturally, the vehicle mounting member 80 can be secured to the vehicle body 38 by rivets, screws, welds or any other suitable fastener.
The vehicle door mounting member 82 is configured to be mounted to the rear door 16. The vehicle door mounting member 82 can be secured to the rear door 16 by, for example, fastening members 98. In this example, fastening members 98 included threaded posts which are received in corresponding openings (not shown) in the rear door 16. A respective nut (not shown) can be threaded to each of the fastening members 98 to secure the vehicle door mounting member 82 to the rear door 16.
It should also be noted that the structure shown as vehicle mounting member 80 can instead be mounted to the rear door 16 and thus be referred to as a vehicle door mounting member. Likewise, the structure shown as vehicle door mounting member 82 can instead be mounted to the vehicle body 38 and thus be referred to as a vehicle mounting member.
As further illustrated, the link member 84 is pivotally coupled by pivot pin 86 to the vehicle mounting member 80 to pivot through a pivotal movement range about a pivot axis E, and the link member 84 is slidably coupled to the vehicle door mounting member 82. That is, as shown in more detail in
The latch member 88 is operatively coupled between the link member 84 and the vehicle mounting member 80 that is pivotally coupled to the link member 84. The latch member 88 is movably configured and arranged to move between a latched position that retains the link member 84 and a released position that releases the link member 84. That is, the latch member 88 includes a first retaining portion 110 having an upper retaining portion 110A and a lower retaining portion 110B that are substantially identical to each other and define recesses 112A and 112B, respectively. The vehicle mounting member 80 includes a second retaining portion 114 having an upper retaining portion 114A and a lower retaining portion 114B that are substantially identical to each other and define recesses 116A and 116B, respectively. The second retaining portion 114 is cooperatively configured with respect to the first retaining portion 110 to pivotally retain the pivot pin 86 (link projection) to pivotally couple the link member 84 to the vehicle mounting member 80. The latch member 88 is coupled in this manner even if the vehicle mounting member 80 is instead mounted to the rear door 16.
As will now be described in more detail, the latch member 88 and the link member 84 are configured and arranged with respect to each other to prevent the latch member 88 from moving from the latched position to the released position while the link member 84 is disposed within a first prescribed angle of the pivotal movement range, such as below 90°. The latch member 88 and the link member 84 are further configured and arranged with respect to each other to permit the latch member 88 to move from the latched position to the released position while the link member 84 is disposed within a second prescribed angle of the pivotal movement range, such as equal to or greater than 90°. Specifically, in this example, the first and second prescribed angles are non-overlapping angles of the pivotal movement range.
As shown in more detail in
When the rear door 16 is in the fully closed position as shown in
As shown in
Accordingly, the latch member 88 cannot be rotated in an unlatching direction U that is opposite to the latching direction L to a degree sufficient to enable pivot pin 86 to exit the recesses 116A and 116B in the second retaining portion 114 of the vehicle mounting member 80. Hence, the latch member 84 and the link member 88 are configured and arranged with respect to each other to prevent the first retaining portion 110 from moving away from the second retaining portion 114 to retain the pivot pin 86 (link projection) while the link member 88 is disposed within a first prescribed angle (e.g., less than 90° or any other suitable angle) of the pivotal movement range and to permit the first retaining portion 110 to move away from the second retaining portion 114 to release the pivot pin 86 while the link member 88 is disposed within a second prescribed angle (e.g., equal to or greater than 90° or any other suitable angle that is greater than the first prescribed angle) of the pivotal movement range.
However, when the rear door 16 is rotated to an open position as shown in
As can be appreciated from the above, the vehicle door check link mechanism 22 allows for opening of a vehicle door beyond an intermediate position such as 90° to a fully open position such as 270°. Although the vehicle door check link mechanism 22 is particularly useful for rear cargo doors, the vehicle door check link mechanism 22 can be employed in any type of door that pivotally opens.
In understanding the scope of the present invention, the term “comprising” and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated features, elements, components, groups, integers, and/or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and/or steps. The foregoing also applies to words having similar meanings such as the terms, “including”, “having” and their derivatives. Also, the terms “part,” “section,” “portion,” “member” or “element” when used in the singular can have the dual meaning of a single part or a plurality of parts. Also as used herein to describe the above embodiment(s), the following directional terms “forward”, “rearward”, “above”, “downward”, “vertical”, “horizontal”, “below” and “transverse” as well as any other similar directional terms refer to those directions of a vehicle equipped with the above discussed vehicle door arrangement. Accordingly, these terms, as utilized to describe the present invention should be interpreted relative to a vehicle equipped with the above discussed vehicle door arrangement. The terms of degree such as “substantially”, “about” and “approximately” as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed.
While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the scope of the invention as defined in the appended claims. For example, the size, shape, location or orientation of the various components can be changed as needed and/or desired. Components that are shown directly connected or contacting each other can have intermediate structures disposed between them. The functions of one element can be performed by two, and vice versa. The structures and functions of one embodiment can be adopted in another embodiment. It is not necessary for all advantages to be present in a particular embodiment at the same time. Every feature which is unique from the prior art, alone or in combination with other features, also should be considered a separate description of further inventions by the applicant, including the structural and/or functional concepts embodied by such feature(s). Thus, the foregoing descriptions of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.