CA1292936C - Method and apparatus of a conventional fore and aft vehicle seat adjuster convertible into an easy entry seat adjuster slide - Google Patents

Method and apparatus of a conventional fore and aft vehicle seat adjuster convertible into an easy entry seat adjuster slide

Info

Publication number
CA1292936C
CA1292936C CA000572998A CA572998A CA1292936C CA 1292936 C CA1292936 C CA 1292936C CA 000572998 A CA000572998 A CA 000572998A CA 572998 A CA572998 A CA 572998A CA 1292936 C CA1292936 C CA 1292936C
Authority
CA
Canada
Prior art keywords
seat
lower channel
latch
handle
easy entry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA000572998A
Other languages
French (fr)
Inventor
Mark D. Weier
Regis V. Pilarski
Antonio P. Centi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to CA000572998A priority Critical patent/CA1292936C/en
Application granted granted Critical
Publication of CA1292936C publication Critical patent/CA1292936C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

METHOD AND APPARATUS OF A CONVENTIONAL FORE AND AFT VEHICLE SEAT
ADJUSTER CONVERTIBLE INTO AN EASY ENTRY SEAT ADJUSTER SLIDE

Abstract of the Disclosure The present invention provides a conventional fore and aft vehicle seat adjuster which can be quickly converted to an easy entry seat adjuster with a memory. The present invention is highly useful when utilized for the front seat in two door vehicles wherein the bending of the front seat back forward allows the front seat to move to its most forward position.
After utilization of the easy entry feature, pushing back on the front seat will automatically return the front seat in its prior preselected position without further adjustment by the front seat occupant.

Description

l~Z~3ti PATENT

METHOD AND APPARATUS OF A CONVENTIONAL FORE AND AFT VEHICLE SEAT
ADJUSTER CONVERTIBLE INTO AN EASY ENTRY SEAT ADJUSTER SLIDE
_ Field of the Present Invention The present invention relates to vehicle seat adjuster (slides). Additionally, the present invention relates to vehicle seat adjuster (slides) having an easy entry feature wherein by a signal the seat is automatically positioned to an extreme forward or rearward position to facilitate entry or exit of the vehicle.
More particularly the present invention relates to easy entry seat adjuster (slides) as hereintofore described wherein the slide also has a memory to return the seat to its preselected adju~ted position without further adju~tment by the qeat occupant. Still more particularly the present invention relates to a conventional aeat adjuster (slide) that the above noted feature~ and adjuster slides which are ideally suited for such applications.
Disclosure Statement Typically automotive vehicles have a front and rear row of seating. It is common to provide automotive vehicles with just one door per side (two door vehicle) wherein the front and rear seat occupants utilize the same door to enter or exit the vehicle. To allow the rear seat occupant to enter the vehicle~
the front seat back pivots forward to provide a greater opening.
3k To increase the room for entry into the vehicle further, the tllting of the front seat back also activates a bia~ing force to move the front seat to an extreme forward position. After the rear seat occupant is seated, the front seat back is returned to it8 upright position. It is then desirable for the front seat to return to the prior preselected position by being pushed back by the front seat occupant without requiring the front seat occupant to readjust the seat.
Examples of easy entry vehicle seat adjuster slides may be found in commonly assigned ~.S. patents Corbett 3,853,373, Carella et al 4,065,178, and Kopich 4,422,690.
The present invention provide~ an ea~y entry vehicle ~eat ad~u~ter ~l~de which provides an alternative to the ad~uster ~lide~ noted above and further ~how~ a simple conversion of a conventional ~eat ad~uster (slide~ to an ad~u~ter (slide) including the above noted features.
It is an ob~ect of the present invention to provide a manual easy entry vehicle ~eat ad~uster with memory for selectively ad~usting a vehicle seat to a plurality of positions with respect to the vehicle and for returning the seat to the prior selected position upon utilization of the ea~y entry feature, the ad~u~ter in combination including, a lower channel for connection with the vehicle, the lower channel mean~ having engagement means along a portion of the length of 293~

the lower channel, an upper channel means connected with the seat and slidably mounted on the lower channel, a first latch means connected with the upper channel for selectively contacting with the lower channel engagement means for affixing the upper channel on the lower channel and, a manually activated handle means to operate the first }atch, an easy entry activator means to move the first latch independently of the handle, and a quick connect plate for mounting on the lower channel for covering and preventing contact of the first latch means with a portion of the engagement mean~, and the plate having a second latch means whereby the second latch mean~ being bia~ed to connect the plate wlth the lower channel and the second latch means being moved by the handle and the plate having contact with the upper channel when the handle mean~ moves the second latch means so that the plate moves with the upper channel when the position of the seat i~ being selectively ad~usted with re~pect to the vehicle and the second latch retaining the plate in a fixed po~ition with respect to the lower channel when the easy entry activator moves the first latch thereby preventing the first latch from contacting the lower channel engagement means except at the prior selected position.
Other ob~ects, desires and advantages of the present invention will become more apparent to those ~killed in the art A

lZ~ 36 as the nature of the invention is better understood from the accompanying drawings in a detailed description.
Brief Description of the Drawings Figure 1 is a top plan view of the present invention;
Figure~ 2, 3 and 4 are views taken along lines 2-2, 3-3 and 4-4, respectively.
Detailed Description to the Drawing~
Referring to Figures 1, 2, 3 and 4, the easy entry memory seat adjuster 7 and seat adjuster slide 9 of the present invention i~ fixably connected to the vehicle via a plate or rail commonly referred to as the floor or lower channel ~eans 10. The lower channel 10 ha~ what is commonly referred to as a lock plate 12 ~ntegrally formed or boltably attached thereto. ~he lock plate along a significant portion of its length has engagement mean~ provided by a ~eries of notche~ 14.
Slidably mounted on top of the lower channel 10 is a seat channel 20 referred to as the upper channel or upper channel mean~. The upper channel 20 provide~ means of connection to the vehiclé seat, the upper channel is slidably mounted to the lower channel by a series of upper left and right and lower left and right bearing balls 25. The lower channel on both sides has a flange which separates the upper and lower ball~ from one another. The upper channel has a hook portion which allows the upper and lower channel~ to be interlocked.

;~

12~Z936 The outboard ad~uster slide i~ provided with a manually activated handle means 30 which is connected with the upper channel 20. Handle means 30 has a rod 32 rotatively mounted in lock bar mounting bracket 31 which is in turn fixably connected to upper seat channel 20. The handle means has a D shaped section on the rod 32 onto which the lock bar actuator 34 is keyed to having a D shaped hole. In like manner the handle means 30 has a 8COOp 36 attached on a D shaped section. A first latch means or lock bar 40 is provided for affixing the position of the upper channel with the lower channel.
Lock bar 40 i8 connected with upper channel 20 via a free pivotal connection on rod 32 and ~electively contact~
aperatures 42 ~ith notches 14 to set the position of the upper channel 20 or ~eat with re3pect to the lower channel 10 or vehiale.
Crank 60 is freely pivotally connected on rod 32.
Crank 60 1~ also connected with cable 62. Cable 62 is in turn connected with the seat back on easy entry latch (not shown).
Crank 60 i~ al~o connected with a cable 64 which operates the lock bar on the inboard or slave ad~uster ~lide 15.
A ~oined two piece quick connect plate 70 with a ~lot 72 i8 slidably mounted on ~aid lock plate 12 and cover~ a portion of notches 14. The outer piece 71 i usually made of a hardened heat treated steel. Bia~ed by spring 78 and pivotally mounted on A~

12~2936 the plate is a second latch means of memory marker 76. The memory marker has a tab 75 which engages with notches 14 to retain the plate 70 with the lower channel 10.
In operation spring 80 biases lock bar 40 to an engaged position. Handle means 30 is biased by spring 80 via lock bar 40 and lock bar actuator 34 to its non actuated position. In similar fashion, a spring biases a lock bar on the inboard ad~uster slide 15 to a similar engaged position. To adjust the seat in normal operation, the seat occupant operates handle 30.
The turn$ng of handle 30 causes the lock bar actuator 34 along portion 37 to contact lock bar 40 and move it from the solid line po~tion to the phantom po~ition of F~gure 3 to relea8e the ~perture~ from enagement with notche~ 14. Movement of lock bar 40 (counter clockwi~e a~ seen in Figures 3 and 4) causes the cran~ 60 to move counterclockwise after the lock bar 40 contacts crank 60 thereby pulling cable 64. The pull of cable 64 releases the lock bar of the inboard slider 15 from it~ respective lock plate. The scoop 36 moves the memory marker 76 to a position shown in phantom in Figure 1 releasing tab 75 from notches 14.
Lock bar actuator tab 33 is also in~erted within the slot 72 and becomes a means of contact between the upper channel 20 and the plate 70. The upper channel 20 and plate 70 are now free to move together to the next selected ad~usted position.

~'4.'~

lZ~2~36 To use the easy entry feature, the cable 62 is pulled to the left (as shown in Figure 4) by a seat latch or by the bending of a pivotal back seat (not shown~. Crank 60 will rotate counterclockwise causing the lock bar 40 to release from engagement and pulling on the cable 64 to release the lock bar of the inboard slider 15.
Since the crank 60 is freely pivotal on rod 32 the handle means 30 will not be turned. Therefore the lock bar actuator tab 33 will not be inserted into slot 72 and memory marker tab 75 will not be disengaged from notches 14. Therefore plate 70 (added to Figure 4 for clarity of illustration) is now f~xed with re~pect to lower channel 10. A ~pr$ng (not ~hown) w~ll urge the ~eat towards the front or bend end of handle means 30. The lock bar 40 will continue to be hend out of engagement by a blank portion 73 of plate 70. Also cable 64 will still be tensioned and the lock bar of the inboard ad~uster 15 will still be held out of engagement.
To return the seat to the prior selected position, the seat is pushed back until the lock bar 40 slides off the blank portion 73. Spring 80 will then urge the lock bar 40 back into engagement at the prior ~elected position and cau~e the crank 60 to be pulled back clockwi~e. The above al~o cau~es cable 64 to be pulled back to lock the lock bar of the inboard ad~u~ter 15.

~.,~,...

12~Z~3f~

The above design provides a great advantage in that to convert a conventional seat ad~uster to an easy entry ad~uster the only additional parts required are cable 62, 8COOp 36, plate 70 with its spring biased memory marker 76. If desired to provide uniformity in large production, handle means 30 will be the same for all vehicles. If a four-door model car i8 produced plate 70, cable 62 and its memory marker 7~ will be deleted. If production plans call for a two-door vehicle, cable 62 will be added and the plate 70 with it memory marker 76 will be added to convert the ad~u~ter to an easy entry seat ad~uster. ~herefore, a custom design for the easy entry seat adjuster is no longer required.
Due to orming requirements to achieve the ~urface hardness desired it is u~ually preferable to make the quick connect plate out of a two piece member allowing a harder heat treated ~teel to be formed over the portion which slides onto the lock plate.
While an embodiment of the present invention has been explained, it will be readily apparent to those skilled in the art of the various modification~ which can be made to the present invention without departing from the spirit and scope of this application as it is encompas~ed by the followinq claims.

~'

Claims (2)

1. A manual easy entry vehicle seat adjuster with memory for selectively adjusting a vehicle seat to a plurality of positions with respect to said vehicle and for returning said seat to a prior selected position upon utilization of said easy entry feature, said adjuster and combination in comprising;
a lower channel means for connection with said vehicle, said lower channel means having engagement means along a portion of the length of said lower channel;
an upper channel means connected with said seat and slidably mounted on said lower channel;
first latch means connected with said upper channel for selectively contacting with said floor channel engagement means for affixing said upper channel on said lower channel therein;
and a manually activated handle means to operate said first latch means and said handle means having a tab;
an easy entry activator means to move said first latch independently of said handle; and a quick connect plate for mounting on said lower channel for covering and preventing contact of said first latch means with a portion of said engagement means, and said plate having a second latch means whereby said second latch means being biased to connect said plate with said lower channel and said memory marker being moved contemporaneously with said first latch means by said handle means and said plate having a slot for reception of said tab for contact with said tab when said handle means moves said first latch means so that said plate moves with said upper channel when the position of said seat is being selectively adjusted with respect to said vehicle and said second latch means retaining said plate in a fixed position with respect to said lower channel when said easy entry activator moves said first latch means thereby preventing said first latch means from contacting said lower channel engagement means except at said prior selected position.
2. A seat adjuster slide as described in claim 1 wherein said handle pivots in an axis generally parallel with said lower channel and said handle at one end has a scoop, said second latch has a memory marker pivotal in an axis generally perpendicular to said lower channel with a tab for engagement with said engagement means, and rotation of said handle causes said scoop to move said memory marker to remove said tab from engagement with said engagement means.
CA000572998A 1988-07-26 1988-07-26 Method and apparatus of a conventional fore and aft vehicle seat adjuster convertible into an easy entry seat adjuster slide Expired - Fee Related CA1292936C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000572998A CA1292936C (en) 1988-07-26 1988-07-26 Method and apparatus of a conventional fore and aft vehicle seat adjuster convertible into an easy entry seat adjuster slide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000572998A CA1292936C (en) 1988-07-26 1988-07-26 Method and apparatus of a conventional fore and aft vehicle seat adjuster convertible into an easy entry seat adjuster slide

Publications (1)

Publication Number Publication Date
CA1292936C true CA1292936C (en) 1991-12-10

Family

ID=4138444

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000572998A Expired - Fee Related CA1292936C (en) 1988-07-26 1988-07-26 Method and apparatus of a conventional fore and aft vehicle seat adjuster convertible into an easy entry seat adjuster slide

Country Status (1)

Country Link
CA (1) CA1292936C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011063521A1 (en) * 2009-11-26 2011-06-03 Magna Seating Inc. Seat track easy-entry actuation mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011063521A1 (en) * 2009-11-26 2011-06-03 Magna Seating Inc. Seat track easy-entry actuation mechanism
US8757720B2 (en) 2009-11-26 2014-06-24 Magna Seating Inc. Seat track easy-entry actuation mechanism

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