Quick release pedestal seat

A removably attachable vehicle seat mechanism is provided, having a seat support connected to the vehicle seat, a base connected to the floorboard, and a base plate connected to the floorboard and base. The support is removably attachable to the base, providing for easy installation and removal of the vehicle seat from the vehicle. The vehicle seat rests substantially upright on the seat support prior to installation. The seat and seat support need be tilted at an angle of less than 20.degree. to removably attach the support to the base. A cantilever mechanism located on the support exerts a cantilever force upon the base. A rod located on the support engages slots adjacent to rear portion of the base. Hooks located on the support engage a bar on the based, further positively locking the support to the base.

BACKGROUND AND SUMMARY OF THE INVENTION 
The present invention is related to vehicle seat assemblies. More 
particularly, the present invention is related to seat assemblies which 
allow a vehicle seat to be removably attachable to a vehicle floorboard. 
The present invention is for a vehicle seat assembly which allows a vehicle 
seat to be removably attachable to the vehicle floorboard. When designing 
a vehicle seat assembly, several features are desired. For example, it is 
desirable to reduce the weight of the seat assembly as much as possible. 
Typically, the seat assembly will be made of a heavy-duty material, such 
as metal. This type of material may be preferred because of its strength 
and rigidity. However, seat assemblies made of metal often are undesirably 
heavy. A vehicle seat assembly which is heavy not only makes it more 
difficult to manipulate the seat during attachment and removal, but also 
adds to the overall weight of the vehicle. 
Other features which are desirable in a seat assembly are strength and 
stability. A vehicle seat which is not stable, and which does not provide 
a secure seating area for the vehicle driver or passengers is not 
desirable. Furthermore, the seat assembly should be strong enough to 
support the weight of the vehicle seat as well as the passenger. 
Also desirable in a seat assembly is a means for locking the seat to the 
floorboard. A seat assembly which allows the seat to easily become 
dislodged from the vehicle floorboard is undesirable. 
Therefore, it is an object of the present invention to provide a seat 
assembly which is relatively lightweight. 
Another object of the present invention is to provide a seat assembly which 
is easy to manipulate. 
A further object of the present invention is to provide a seat assembly 
which is easy to attach to a vehicle floorboard, and easy to remove from 
the vehicle. 
Yet another object of the present invention is to provide a seat assembly 
which is strong and stable. 
A still further object of the present invention is to provide a seat 
assembly with a secure locking mechanism. 
These and other objects of the present invention are attained by a seat 
assembly which allows a seat to be removably attached to a vehicle 
floorboard. Generally, the seat assembly of the present invention includes 
a seat, a support which is connected to the seat, a base which is 
connected to the floorboard, and a base plate which secures the base to 
the floorboard. The seat assembly also includes a mechanism for removably 
attaching the support to the base. 
The base includes a generally planar top surface having a front portion, a 
rear portion and opposing sides, and flanges connected to the opposing 
sides. The flanges are substantially L-shaped, and form a channel 
substantially between the flange and the top surface. Included in the base 
are sets of vertically aligned holes. A hole located in the planar surface 
is substantially vertically aligned with a hole in the flange. A set of 
vertically aligned holes is located at each of the four corners of the 
base. The hole in the top surface of the base is slightly larger in 
diameter than its corresponding hole in the flange. This allows the base 
to accommodate a shoulder bolt therethrough. The head of the bolt rests 
against the top portion of the base and the shoulder rests against the 
flange, within the channel. 
The base also includes a slot located in each flange, adjacent the back 
portion of the base. The slots allow the base to receive a portion of the 
support therein. The base also includes a bar positioned between the 
opposing flanges, adjacent the front portion of the base. The top surface 
has cut-outs therein, which expose a portion of the bar from above. 
The support includes opposing ribs which are spaced apart and connected by 
a generally cylindrical rod. The rod is positioned near the rear portion 
of the support, and is receivable within the slots in the flanges of the 
base. Opposite the rod, the support includes a spring-mounted handle 
having hooks thereon. The handle is pivotally mounted so that it may 
rotate with respect to the opposing ribs. The hooks on the handle are 
engageable about the bar located on the base, and thus acts as a 
spring-loaded positive lock between the support and the base. 
The support further includes at least one cantilever member thereon. The 
cantilever member extends generally transverse from the ribs, and is 
positioned so as to contact a portion of the base. The cantilever member 
includes a spacer, which may be a rubber cushion, to take up slack between 
the cantilever member and the base. 
The base plate is a generally oval disk, having a peripheral flange 
thereabout. The base plate includes a hole therein to accept the shoulder 
bolt therethrough. The base plate is positioned such that its hole is 
vertically aligned with a set of holes in the base. The base plate is 
positioned substantially beneath the vehicle floorboard, such that the 
base plate and the base sandwich the floorboard. The shoulder bolt is 
inserted through the base, floorboard and base plate, and is tightened 
with a nut. 
The seat assembly of the present invention provides for easy attachment and 
removal of a vehicle seat from a vehicle. The vehicle seat and support 
attached thereto need not be completely lifted from the vehicle floorboard 
to be attached to the base. The front portion of the seat and support need 
only be tilted at an angle of approximately 5.degree. from the horizontal, 
in order to clear the base. The vehicle seat and support can then be 
pushed forward until the rod in the support is received within the slots 
in the flanges of the base. The handle on the support is then actuated, 
allowing the hooks to engage the bar on the base. The spring mechanism 
connected to the handle positively locks the support in position. In this 
position, the spacer on the cantilever member is pressed firmly against 
the top portion of the base, and exerts a cantilever force downward onto 
the base. This force acts as a further positive lock to prevent the hooks 
from disengaging the base.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
FIG. 1 shows a seat assembly which can be used to removably attach a 
vehicle seat to the floorboard of a vehicle. The seat assembly of the 
present invention is referred to generally by the reference numeral 10, 
and includes 3 basic components: support 20, base 60, and at least one 
base plate 100. As can be seen in FIG. 2 base 60 is mounted to floorboard 
12 of the vehicle, and support 20 is mounted to the underside of seat 14. 
Typically, floorboard 12 extends in a single plane. Base plate 100 is 
positioned beneath floorboard 12, and secures base 60 to the floorboard. 
Support 20 and base 60 are removably connectable to one another, providing 
for easy insertion and removal of seat 14 to and from the vehicle. 
As shown in FIG. 2, support 20 comprises a pair of spaced apart, oppositely 
disposed ribs 22. Each rib 22 is a generally rigid, heavy-duty plate, and 
may be made of metal. Each rib 22 includes top rail 24. Top rail 24 
extends substantially transverse from rib 22. Top rail 24 provides a 
substantially flat surface for mounting support 20 to the underside of 
seat 14. Top rail 24 includes a plurality of holes 26 therein, allowing 
each rib 22 to be bolted to seat 14. Support 20 may also be connected to 
seat 14 by other similar connectors, such as studs, screws or nails. It is 
also possible to connect support 20 to seat 14 by welding or other similar 
bonding. In one illustrative embodiment of the present invention, a slide 
track is positioned between top rail 24 and seat 14. The use of slide 
track 27 allows seat 14 to be slidably adjustable with respect to seat 
assembly 10. 
Support 20 generally includes a front portion 28 and a rear or back portion 
30. Front portion 28 of support 20 references that portion of the support 
which is nearest the front of the vehicle and rear portion 30 of support 
20 references that portion which is nearest the rear of the vehicle. 
Support 20 also contains rod 32. Rod 32 is a substantially cylindrical 
member constructed of a heavy-duty material, such as metal. Rod 32 is 
connected at opposite ends to opposing ribs 22, by a method such as 
welding. In the embodiments shown, rod 32 is positioned adjacent rear 
portion 30 of support 20, and is connected to ribs 22 substantially 
opposite top rail 24. Rod 32 extends substantially transverse to ribs 22. 
Support 20 further includes handle 34. Handle 34 is shown as a generally 
cylindrical member, extending between opposite ribs 22. Handle 34 includes 
grip 36 thereon, which allows a user to manipulate the handle. Handle 34 
is pivotally mounted to ribs 22 such that it may rotate with respect to 
the opposing ribs. 
Attached to handle 34 is engagement means 38. Engagement means 38 provides 
a mechanism whereby support 20 may engage a portion of base 60. Engagement 
means 38 includes at least one hook 40. In the embodiments shown, two 
hooks 40 are used. Hooks 40 are spaced apart along handle 34, such that 
one hook 40 is positioned substantially adjacent opposite ends of handle 
34. Hooks 40 are fixedly attached to handle 34, such that turning handle 
34 causes hooks 40 to rotate. Each hook 40 includes groove 42 therein for 
receiving a portion of base 60. 
Attached to each hook 40 is spring mechanism 44. Spring mechanism 44 biases 
hook 40 in a predetermined direction. Spring mechanism 44 includes 
standard 46 attached to rib 22, and spring 48. Spring 48 is connected at 
one end to standard 46, and at its opposite end to hook 40. Spring 
mechanism 44 biases hook 40 such that hook 40 tends to rotate in a 
direction substantially towards rear portion 30. Spring mechanism 44 
further includes stop 50. Stop 50 is a mechanical stop member which 
extends substantially transverse from rib 22 and which contacts a portion 
of hook 40. Stop 50 prevents hook 40 from rotating towards rear portion 
30, despite the bias of spring mechanism 44. 
Support 20 further includes cantilever member 52. Cantilever member 52 
extends from rib 22, substantially transverse to the rib. In the 
illustrative embodiments shown, cantilever member 52 is positioned 
substantially between rod 32 and handle 34. Cantilever member 52 contacts 
a portion of base 60 and exerts a cantilever force onto the base. 
Cantilever member 52 includes a substantially flat surface 54 thereon, for 
contacting base 60. Cantilever member 52 further includes spacer 56. 
Spacer 56 provides a means for taking up slack between flat surface 54 and 
base 60. Spacer 56 can be seen in FIG. 5. In the illustrative embodiments 
shown, spacer 56 is a pliable, resilient member. One such illustrative 
embodiment of spacer 56 is a rubber cushion. However, spacer 56 may be 
made of another material displaying similar qualities. 
Base 60 is mounted directly to floorboard 12. In certain embodiments, 
carpet or other flooring may be disposed substantially between floorboard 
12 and base 60. In the illustrative embodiments shown, base 60 is made of 
a rigid, sturdy material, such as metal. In the illustrative embodiment 
shown in FIG. 2, base 60 include top 62. Top 62 is a generally planar 
surface. As shown, top 62 is substantially rectangular in shape; however, 
top 62 may be made of most any geometric design. Base 60 generally 
includes front portion 64, rear or back portion 66, and opposite sides 68. 
As with support 20, front portion 64 and rear portion 66 generally 
reference the positioning of base 60 within the vehicle. Thus, front 
portion 64 is positioned nearest the front of the vehicle and rear portion 
66 is positioned nearest the back of the vehicle. In this position, front 
portion 28 of support 20 corresponds to front portion 64 of base 60 and 
rear portion 30 of support 20 corresponds to rear portion 66 of base 60. 
Base 60 includes opposing flanges 70. Each flanges 70 extends substantially 
transverse from top 62 from side 68. Flanges 70 extend substantially the 
entire length of top 62. Each flange 70 is substantially L-shaped in 
cross-section, having first leg 72 extending substantially transverse from 
top 62, and second leg 74 extending substantially transverse from first 
leg 72. The positioning of flanges 70 adjacent top surface 62 creates a 
channel 76 substantially between each flange 70 and top 62. Each flange 70 
also includes slot 78 therein. Slot 78 is positioned adjacent rear portion 
66 of base 60. Slot 78 provides a means for receivably engaging a portion 
of support 20. 
Base 60 also includes bar 80. Bar 80 is a substantially cylindrical member 
made of a heavy-duty material, such as metal. Bar 80 is connected at 
opposite ends to opposing flanges 70. In the embodiments shown, bar 80 is 
welded to each flange 70. As can be seen in FIG. 2, bar 80 is connected to 
opposing first legs 72 of flanges 70. 
Bar 80 is positioned adjacent front portion 64 of base 60. Bar 80 provides 
a means for receivably engaging a portion of support 20 thereabout. 
Adjacent bar 80, base 60 includes cut-outs 82 in top 62. Cut-outs 82 are 
positioned adjacent front portion 64, and are spaced apart such that each 
cut-out 82 is also adjacent a side 68. Cut-out 82 exposes a portion of bar 
80 from above. 
Base 60 includes a plurality of holes 84 therein. In the illustrative 
embodiments shown, base 60 includes a plurality of holes 84 in top 62, and 
a plurality of holes 84 formed in flange 70. As shown, holes 84 in flange 
70 are located in second leg 74 of the flange. Each hole 84 in top 62 is 
substantially vertically aligned with a hole 84 formed in second leg 74 of 
flange 70, thereby forming a set or pair of substantially vertically 
aligned holes. Base 60 include four sets of holes 84, positioned generally 
adjacent the four corners of base 60. In the embodiments shown, each hole 
84 in top 62 is slightly larger than its corresponding vertical hole 84 in 
flange 70. 
Base 60 is mounted to floorboard 12 using bolt 86. Other forms of 
attachment, such as screws, nails or the like, or other means of bonding, 
such as welding, may be used to secure base 60 to floorboard 12. In the 
illustrative embodiments shown, bolt 86 is a shoulder bolt. Shoulder bolt 
86 includes head 88, shoulder 90 and threaded portion 92. The diameter of 
shoulder 90 is slightly larger than the diameter of threaded portion 92. 
Bolt 86 is positionable through a set of holes 84 to secure base 60 to 
floorboard 12. In practice, bolt 86 is inserted through a set of holes 84 
in a direction towards the floorboard. In position, head 88 of bolt 86 
rests against top 62 of base 60, and shoulder 90 extends the approximate 
entire width of channel 76. Thus, the edge of shoulder 90 rests 
substantially against second leg 74. This is shown in FIGS. 3-5. 
To provide additional support, or to decrease the width of channel 76, a 
plate or similar member (not shown) may be attached to the underside of 
top 62, adjacent hole a 84. Such a member provides additional rigidity and 
strength, and takes up space between top 62 and second leg 74 of flange 
70. 
Seat assembly 10 also includes base plate 100. Base plate 100 is a 
generally rigid member, made of a heavy-duty material, such as metal. 
Although base plate 100 may be of most any geometric shape, in the 
embodiments shown base plate 100 is shaped generally as an oval. Base 
plate 100 includes top 102, and peripheral flange 104. Peripheral flange 
extends from top 102 about the entire periphery of base plate 100. Flange 
104 extends from top 102 at an angle of approximately 45 degrees from the 
vertical. 
Base plate 100 also includes hole 106 therein. Base plate 100 is 
positionable beneath floorboard 12, such that hole 106 is vertically 
aligned with a set of holes 84. Bolt 86 may be positioned through base 60, 
floorboard 12 and hole 106 in base plate 100, and secured with a nut or 
similar device. 
Having described the structure of seat assembly 10 of the present 
invention, its functions and features can be readily appreciated. Seat 
assembly 10 allows seat 14 to be removably attached to floorboard 12 to 
provide for easy installation and removal. Base 60 is secured to 
floorboard 12 of the vehicle. A base plate 100 is positioned beneath 
floorboard 12, such that hole 106 in base plate 100 is substantially 
vertically aligned with each set of holes 84 in base 60. A bolt 86 is then 
inserted through holes 84, floorboard 12 and hole 106, and secured with a 
nut. Each bolt 86 passes through two holes 84 in base 60. Head 88 contacts 
top 62, and shoulder 90 contact second leg 74 of flange 70. Thus, there is 
a two-point contact between each bolt 86 and base 60. 
While various bolt and hole patterns may be used, the illustrative 
embodiments of the present invention includes a bolt hole pattern whereby 
holes 84 are spaced apart in a generally rectangular fashion. This 
provides a wide base of contact between base 60 and floorboard 12, thus 
providing additional strength and rigidity. 
Support 20 is attached to the underside of vehicle seat 14, using bolts or 
a similar connector. As described earlier, a slide track or spacer may be 
positioned between support 20 and seat 14. Seat 14 equipped with support 
20 rests evenly upright, supported by opposing ribs 22 of support 20. 
Thus, seat 14 remain stable and upright even prior to installation. 
Support 20 is removably connected to base 60 by sliding the support 20 over 
the base 60, beginning at the rear and sliding towards the front of the 
vehicle. Seat 14 is positioned such that front portion 28 of support 20 is 
positioned directly behind rear portion 66 of base 60. Seat 14 and support 
20 are then tilted, utilizing rear 30 of support 20 as a pivot point. 
Thus, only front portion 28 of support 20 need be raised from floorboard 
12. Front portion 28 of support 20 need be tilted only far enough to allow 
hooks 40 to clear top 62 of base 60. In the illustrative embodiments 
shown, this angle is approximately 5 degrees from the horizontal. 
After front portion 28 has been tilted, seat 14 and support 20 are pushed 
towards the front of the vehicle, until rod 32 of support 20 is fully 
received within slots 78 of flanges 70. In this position, hooks 40 rest 
substantially vertically above bar 80. 
Support 20 is secured to base 60 by securing hooks 40 about bar 80. A user 
may hold grip 36 and pivot handle 34 until hooks 40 clear bar 80. Seat 14 
and support 20 can then be lowered, and grip 36 released. The tension in 
hooks 40 provided by spring mechanism 44 causes handle 34 and hooks 40 to 
pivot, such that bar 80 is received within grooves 42 of hooks 40. This 
locks support 20 to base 60, and prevents support 20 from shifting with 
respect to the base. 
Once handle 34 is released, and hooks 40 engage bar 80, support 20 is 
positively locked to base 60. Support 20 and seat 14 are prevented from 
advancing further forward, as rod 32 is firmly secured within slots 78 in 
flange 70. Seat 14 and support 20 are prevented from sliding rearwardly, 
because of the engagement of hooks 40 about bar 80. Additionally, 
cantilever member 52 also adds to the stability and locking action of seat 
assembly 10. In position, spacer 56 of cantilever 52 contacts top portion 
62 of base 60, and exerts a downward force thereon. With rod 32 secured 
within slots 78 acting as an anchor point, the force supplied by 
cantilever member 52 onto top 62 acts as a cantilever force, and prevents 
support 20 from being raised or from disengaging base 60. 
To remove seat 14 from the vehicle, grip 36 is used to turn handle 34. 
Handle 34 is turned until hooks 40 clear bar 80. Front portion 28 of 
support 20 can then be raised a small distance, until hooks 40 clear top 
62 of base 60. When lifting front portion 28 of support 20 to disengage 
the support from base 60, support 20 need be tilted only approximately 5 
degrees from the horizontal. Seat 14 and support 20 can then be slid 
rearwardly until rod 32 disengages slots 78 and flange 70. Vehicle seat 14 
can then be removed from the vehicle. 
Although the invention has been described in detail, the scope of the 
invention is to be limited only by the terms of the appended claims. For 
example, the relative dimensions of the various components may be modified 
to enable seat assembly 10 to be aligned in conjunction with seats 14 of 
varying dimensions, as well as different vehicles.