WO1993004890A1 - Vertical seat position adjuster - Google Patents
Vertical seat position adjuster Download PDFInfo
- Publication number
- WO1993004890A1 WO1993004890A1 PCT/US1992/007476 US9207476W WO9304890A1 WO 1993004890 A1 WO1993004890 A1 WO 1993004890A1 US 9207476 W US9207476 W US 9207476W WO 9304890 A1 WO9304890 A1 WO 9304890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bore
- seat
- housing
- helical gear
- gear
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/067—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable by linear actuators, e.g. linear screw mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
- B60N2/161—Rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
- B60N2/164—Linear actuator, e.g. screw mechanism
Definitions
- the present invention relates generally to seat adjusters of the type commonly used in motor vehicles and, more particularly, to a low profile seat adjuster providing vertical as well as fore-aft adjustment.
- a low roof line is essential to achieving an aerodynamic profile.
- a vehicle having a low roof line must also provide adequate head room for a vehicle occupant. Therefore, a low vertical profile seat must be utilized.
- the vertical profile of a seat is dictated by the height of the mechanism which provides vertical as well as fore-aft positional adjustment.
- Conventional technology such as described in U.S. patents Tanaka 3,182,947 and Colautti, et al. 4,509,382 feature telescoping devices which include telescoping segments, which present an objectionably tall profile when adjusted to minimum vertical height position.
- the present invention incorporates a mechanism used to control the vertical height as well as fore-aft position of a vehicle seat while presenting a minimum height profile when adjusted to minimum vertical elevation.
- the seat is connected to a pair of rails, one stationary and one reciprocable.
- a seat is affixed to an attachment bracket which is connected to the reciprocable rail by a vertical height adjuster comprising a vertically oriented screw jack which may be positioned to selectable heights by a motor.
- the fore-aft relationship of the rails may also be selectively adjusted by a motor driving a horizontally oriented screw jack.
- Both screw jacks incorporate a screw connected to a helical gear engaged to a worm gear.
- the worm gear is driven by a remote motor through a flexible drive cable.
- Both screw jacks present a structure which offers a minimum height profile when the seat is positioned at minimum vertical height. In this manner, an aerodynamically efficient roof line may be utilized while providing maximum head room for the vehicle occupants.
- the preferred embodiment of the present invention includes a low vertical profile seat height adjustment mechanism to be used to provide selectable vertical height adjustment of a vehicle seat with respect to a base comprising a first housing defining a first bore and a portion of a second bore.
- a second housing having a structural interfitting relationship with the first housing defines a cavity therebetween.
- the second housing further defines a bore axially displaced from and coaxial to the first bore and a portion of a bore alignable with the portion of the second bore of the first housing so as to define a second bore.
- the first and second bore define axes which are radially displaced and orthogonally oriented with respect to one another.
- the second housing further includes a radially extending portion disposed about the bore axially displaced from and coaxial to the first bore thereby forming a first annular face.
- a helical gear is located within the cavity defined between the first and second housing.
- the gear includes a first diameter axially extending circumferential portion including teeth formed therein.
- the gear includes opposed second smaller diameter axially extending circumferential portions defining respective bearing surfaces. The second smaller diameter bearing surfaces of the helical gear are located in the first bore and the bore axially displaced from and coaxial to the first bore to provide radial bearing support for the helical gear.
- the gear includes a radially extending surface defining a second annular face which is located between respective first and second diameter portions of the helical gear which act in conjunction with the first annular face to provide an axial bearing support for the helical gear.
- a worm gear having first and second opposed end portions forming cylindrical coaxial bearing surfaces and an intermediate portion having a worm thread formed therein is bearingly supported in the second bore so as to provide alignment of the worm thread with the teeth of the helical gear.
- the first and second housing are maintained in the structurally interfitting relationship therebetween and secured to a base by fasteners.
- a vertically extending screw drivingly engaged with the helical gear and threadably engaged to a nut affixed to the seat and threadably engaged to the screw completes the present invention.
- the preferred embodiment of the present invention further includes a nut affixed to the seat by structural interference with a channel member affixed to the seat.
- the nut is maintained in constant contact with the channel member by use of structurally opposed fulcrums equidistantly located from a central axis of rotation extending through the nut and orthogonal to the screw.
- the helical gear of the present invention preferably includes a centrally disposed blind ended bore having a pair of structurally discrete objects maintaining a point contact between each discrete object as well as a point contact with the base and the blind ended bore.
- the discrete object may be spherical members.
- Figure 1 is a cross-sectional view of the entire seat position adjuster;
- Figure 2 is a cross-sectional view taken at line 2-2 of Figure 1 ;
- Figure 3 is a cross-section of the vertical seat position adjuster;
- Figure 4 is an exploded view of the vertical seat position adjuster;
- Figure 5 is a cross-section of the horizontal seat position adjuster
- Figure 6 is an exploded view of the horizontal seal position adjuster
- Figure 7 is a side-view of the vertical seat position adjuster nut
- Figure 8 is a top view of the vertical seat position adjuster nut
- Figure 9 is a cross-section of the modular vertical and horizontal seat position adjuster.
- the preferred embodiment of the present invention is utilized in conjunction with an adjustably mounted automotive vehicle passenger seat 10 located within the passenger compartment of a vehicle upon floor pan 12.
- the seat adjuster mechanism 14 includes slidably interfitted, elongated channels; an upper one being designated as 16, and a lower one designated as 18.
- Lower seat channel 18 is maintained stationary by mounting brackets 20, 20 connected to floor pan 12.
- Seat adjuster mechanism 1 further includes seat attachment bracket 22 and lateral interconnecting link 24.
- Vertical height adjusters 28, 28 are located at each of the four corners of seat 10. Vertical height adjusters 28 are utilized to control the elevation of seat 10.
- Vertical height adjusters 28, as shown in Figure 3 and 4 include a housing 30 which may be affixed to upper seat channel 16 by fasteners 32, 32.
- a worm gear 34 carried by spherical bearings 66, 66 is utilized to drive helical gear 36 to accomplish rotation of screw 38.
- nut 40 is retained in seat attachment bracket 22 and prevented from rotation about axis 56 of screw 38 by the structural interrelationship between side portions 52, 52 and seat attachment bracket 22.
- Housing base plate 42 structurally fits within housing 30 to define a cavity therebetween. Bores 58 and 62 interact with respective surfaces contiguous with helical gear 36 to facilitate proper radial alignment of screw 38 upon rotation thereof.
- Axial loading transmitted into screw 38 is imparted through helical gear 36 into annular surface 60 of housing base plate 42.
- Beveled washer 48 provides an axial compliance to the assembly to maintain a compliantly rigid assembly.
- Nut 40 is contained within seat attachment bracket 22 and maintains contact therewith at four locations; fulcrum points 50, 50 as well as sides 52, 52.
- the structural interrelationship of seat attachment bracket 22 and nut 40 is such that nut 40 will be retained in seat attachment bracket 22 in such a manner that it may rotate about axis 54 while maintaining continuous contact at points 50, 50 with seat attachment bracket 22.
- nut 40 will be restrained from rotation about axis 56 by structural interference between portions 52, 52 and seat attachment bracket 22. In this manner any rotation of screw 38 will result in a change in vertical height of seat 10.
- the horizontal position of seat 10 is controlled by translating upper seat channel 16 with respect to lower seat channel 18 by rotating screw 100 while maintaining drive nut 102 stationary.
- Retention tabs 104, 104 define a fore-aft stationary position for nut 102 whereas the structural interrelationship between lower seat channel 18 and nut 102 prevent rotation of nut 102 about the axis of screw 100.
- motor 106 drives a first flexible cable 108 which causes worm gear 1 10 engaged with helical gear 1 12 to rotate.
- Worm gear 1 10 is carried by two spherical bearings 120 in housing 122.
- Housing 122 defines recesses 124, 124 and half-bore 126 which cooperate with respective recesses defined in housing closure cap 128 to facilitate bearing support and engagement between helical gear 1 12 and worm gear 1 10.
- Flexible cable 1 14 transmits rotary motion to screw 100 causing same to rotate about stationary nut 102 producing a translation of screw 100.
- Upper seat channel 16 is connected to screw 100 at opposing ends through bearings 1 16, 1 16 which engage brackets 1 18, 1 18 connected thereto. In this manner, remotely located motor 106 may produce fore-aft translation of seat 10 to provide selectively adjustable position thereof.
- Jack housing 30 and housing 122 may be structurally interconnected, as shown in Figure 9, to provide a modular assembly that presents a consolidation of mounting tabs and associated fasteners requiring minimal package space and substantial weight savings.
- One skilled in the art will readily recognize that certain specific details shown in the foregoing specification and drawings are exemplary in nature and subject to modification without departing from the teachings of the disclosure. Various modifications of the invention discussed in the foregoing description will become apparent to those skilled in the art. All such variations that basically rely on the teachings through which the invention has advanced the art are properly considered within the spirit and scope of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
A mechanism used to control the vertical height as well as fore-aft position of a vehicle seat while presenting a minimum height profile when adjusted to minimum vertical elevation. The seat is connected to a pair of rails, one stationary and one reciprocable. A seat is affixed to an attachment bracket which is connected to the reciprocable rail by a vertical height adjuster comprising a vertically oriented screw jack which may be positioned to selectable heights by a motor. The fore-aft relationship of the rails may also be selectively adjusted by a motor driving a horizontally oriented screw jack. Both screw jacks incorporate a screw connected to a helical gear engaged to a worm gear. The worm gear is driven by a remote motor through a flexible drive cable. Both screw jacks present a structure which offers a minimum height profile when the seat is positioned at minimum vertical height. In this manner, an aerodynamically efficient roof line may be utilized while providing maximum head room for the vehicle occupants.
Description
VERTICAL SEAT POSITION ADJUSTER
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION The present invention relates generally to seat adjusters of the type commonly used in motor vehicles and, more particularly, to a low profile seat adjuster providing vertical as well as fore-aft adjustment.
DESCRIPTION OF RELATED ART The automotive vehicle designer seeks to achieve an aerodynamic profile to satisfy fuel consumption goals as well as to provide an aesthetically appealing appearance. A low roof line is essential to achieving an aerodynamic profile. A vehicle having a low roof line must also provide adequate head room for a vehicle occupant. Therefore, a low vertical profile seat must be utilized. The vertical profile of a seat is dictated by the height of the mechanism which provides vertical as well as fore-aft positional adjustment. Conventional technology such as described in U.S. patents Tanaka 3,182,947 and Colautti, et al. 4,509,382 feature telescoping devices which include telescoping segments, which present an objectionably tall profile when adjusted to minimum vertical height position.
An additional problem encountered in seeking a seat design offering a minimum vertical profile is presented by mechanisms seeking to achieve fore- aft positioning of a vehicle seat. Such mechanisms present an overall height which is an accumulation of the individual heights of the transmission and the tracks. For example, in Aihara, et al. 4,805,866, the transmission is located above and coaxial with the tracks. Therefore, the minimum profile defined by a seat adjusted to minimum vertical elevation is restricted by the height of the transmission protruding above the tracks themselves. Alternatively, the transmission may be located within the track. Such an implementation, however, requires an enlarged track cross section which significantly adds to the height thereof. The minimum profile defined by a seat adjusted to
minimum vertical elevation is restricted by the height of the enlarged track. Therefore, there is a need to provide vertical height adjustment as well as fore-aft seat positioning mechanisms which will provide a minimum profile to permit use of a low profile seat.
SUMMARY OF THE PRESENT INVENTION The present invention incorporates a mechanism used to control the vertical height as well as fore-aft position of a vehicle seat while presenting a minimum height profile when adjusted to minimum vertical elevation. The seat is connected to a pair of rails, one stationary and one reciprocable. A seat is affixed to an attachment bracket which is connected to the reciprocable rail by a vertical height adjuster comprising a vertically oriented screw jack which may be positioned to selectable heights by a motor. The fore-aft relationship of the rails may also be selectively adjusted by a motor driving a horizontally oriented screw jack. Both screw jacks incorporate a screw connected to a helical gear engaged to a worm gear. The worm gear is driven by a remote motor through a flexible drive cable. Both screw jacks present a structure which offers a minimum height profile when the seat is positioned at minimum vertical height. In this manner, an aerodynamically efficient roof line may be utilized while providing maximum head room for the vehicle occupants.
The preferred embodiment of the present invention includes a low vertical profile seat height adjustment mechanism to be used to provide selectable vertical height adjustment of a vehicle seat with respect to a base comprising a first housing defining a first bore and a portion of a second bore. A second housing having a structural interfitting relationship with the first housing defines a cavity therebetween. The second housing further defines a bore axially displaced from and coaxial to the first bore and a portion of a bore alignable with the portion of the second bore of the first housing so as to define a second bore. The first and second bore define axes which are radially displaced and orthogonally oriented with respect to one another. The second housing further includes a radially extending portion disposed about the bore axially displaced from and coaxial to the first bore thereby forming
a first annular face. A helical gear is located within the cavity defined between the first and second housing. The gear includes a first diameter axially extending circumferential portion including teeth formed therein. The gear includes opposed second smaller diameter axially extending circumferential portions defining respective bearing surfaces. The second smaller diameter bearing surfaces of the helical gear are located in the first bore and the bore axially displaced from and coaxial to the first bore to provide radial bearing support for the helical gear. The gear includes a radially extending surface defining a second annular face which is located between respective first and second diameter portions of the helical gear which act in conjunction with the first annular face to provide an axial bearing support for the helical gear. A worm gear having first and second opposed end portions forming cylindrical coaxial bearing surfaces and an intermediate portion having a worm thread formed therein is bearingly supported in the second bore so as to provide alignment of the worm thread with the teeth of the helical gear. The first and second housing are maintained in the structurally interfitting relationship therebetween and secured to a base by fasteners. A vertically extending screw drivingly engaged with the helical gear and threadably engaged to a nut affixed to the seat and threadably engaged to the screw completes the present invention.
The preferred embodiment of the present invention further includes a nut affixed to the seat by structural interference with a channel member affixed to the seat. The nut is maintained in constant contact with the channel member by use of structurally opposed fulcrums equidistantly located from a central axis of rotation extending through the nut and orthogonal to the screw. Further, the helical gear of the present invention preferably includes a centrally disposed blind ended bore having a pair of structurally discrete objects maintaining a point contact between each discrete object as well as a point contact with the base and the blind ended bore. The discrete object may be spherical members.
These and other aspects of the present invention will become more readily apparent by reference to the following detailed description of the embodiments as shown in the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of the entire seat position adjuster; Figure 2 is a cross-sectional view taken at line 2-2 of Figure 1 ; Figure 3 is a cross-section of the vertical seat position adjuster; Figure 4 is an exploded view of the vertical seat position adjuster;
Figure 5 is a cross-section of the horizontal seat position adjuster; Figure 6 is an exploded view of the horizontal seal position adjuster; Figure 7 is a side-view of the vertical seat position adjuster nut; Figure 8 is a top view of the vertical seat position adjuster nut; and Figure 9 is a cross-section of the modular vertical and horizontal seat position adjuster.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The preferred embodiment of the present invention, as shown in Figures 1 through 9 is utilized in conjunction with an adjustably mounted automotive vehicle passenger seat 10 located within the passenger compartment of a vehicle upon floor pan 12. The seat adjuster mechanism 14 includes slidably interfitted, elongated channels; an upper one being designated as 16, and a lower one designated as 18. Lower seat channel 18 is maintained stationary by mounting brackets 20, 20 connected to floor pan 12. Seat adjuster mechanism 1 further includes seat attachment bracket 22 and lateral interconnecting link 24. Vertical height adjusters 28, 28 are located at each of the four corners of seat 10. Vertical height adjusters 28 are utilized to control the elevation of seat 10. Vertical height adjusters 28, as shown in Figure 3 and 4, include a housing 30 which may be affixed to upper seat channel 16 by fasteners 32, 32. A worm gear 34 carried by spherical bearings 66, 66 is utilized to drive helical gear 36 to accomplish rotation of screw 38. As may be seen in Figure 8, nut 40 is retained in seat attachment bracket 22 and prevented from rotation about axis 56 of screw 38 by the structural interrelationship between side portions 52, 52 and seat attachment bracket 22. Housing base plate 42 structurally fits within housing 30 to define a cavity therebetween. Bores 58 and 62 interact with respective surfaces contiguous with helical gear 36 to facilitate proper radial alignment
of screw 38 upon rotation thereof. Axial loading transmitted into screw 38 is imparted through helical gear 36 into annular surface 60 of housing base plate 42. Hardened steel balls 46, 46, positioned within bore 64 defined in helical gear 36, facilitate a low resistance rotational bearing for vertical height adjuster 28. Beveled washer 48 provides an axial compliance to the assembly to maintain a compliantly rigid assembly. Nut 40, as shown in Figure 7 and 8, is contained within seat attachment bracket 22 and maintains contact therewith at four locations; fulcrum points 50, 50 as well as sides 52, 52. The structural interrelationship of seat attachment bracket 22 and nut 40 is such that nut 40 will be retained in seat attachment bracket 22 in such a manner that it may rotate about axis 54 while maintaining continuous contact at points 50, 50 with seat attachment bracket 22. In addition, nut 40 will be restrained from rotation about axis 56 by structural interference between portions 52, 52 and seat attachment bracket 22. In this manner any rotation of screw 38 will result in a change in vertical height of seat 10.
As shown in Figures 1 , 5 and 6, the horizontal position of seat 10 is controlled by translating upper seat channel 16 with respect to lower seat channel 18 by rotating screw 100 while maintaining drive nut 102 stationary. Retention tabs 104, 104 define a fore-aft stationary position for nut 102 whereas the structural interrelationship between lower seat channel 18 and nut 102 prevent rotation of nut 102 about the axis of screw 100. As shown in Figure 5, motor 106 drives a first flexible cable 108 which causes worm gear 1 10 engaged with helical gear 1 12 to rotate. Worm gear 1 10 is carried by two spherical bearings 120 in housing 122. Housing 122 defines recesses 124, 124 and half-bore 126 which cooperate with respective recesses defined in housing closure cap 128 to facilitate bearing support and engagement between helical gear 1 12 and worm gear 1 10. Flexible cable 1 14 transmits rotary motion to screw 100 causing same to rotate about stationary nut 102 producing a translation of screw 100. Upper seat channel 16 is connected to screw 100 at opposing ends through bearings 1 16, 1 16 which engage brackets 1 18, 1 18 connected thereto. In this manner, remotely located motor 106 may produce fore-aft translation of seat 10 to provide selectively adjustable position thereof. Jack housing 30 and housing
122 may be structurally interconnected, as shown in Figure 9, to provide a modular assembly that presents a consolidation of mounting tabs and associated fasteners requiring minimal package space and substantial weight savings. One skilled in the art will readily recognize that certain specific details shown in the foregoing specification and drawings are exemplary in nature and subject to modification without departing from the teachings of the disclosure. Various modifications of the invention discussed in the foregoing description will become apparent to those skilled in the art. All such variations that basically rely on the teachings through which the invention has advanced the art are properly considered within the spirit and scope of the invention.
Claims
1. A low vertical profile vertical seat height adjustment mechanism to be used to provide selectable vertical height adjustment of a vehicle seat with respect to a base, comprising:
a first housing defining a first bore and a portion of a second bore;
a second housing having a structural interfitting relationship with said first housing and defining a cavity therebetween;
said second housing defining a bore axially displaced from and coaxial to said first bore and a portion of a bore alignable with said portion of said second bore of said first housing so as to define a second bore;
said first and second bore defining axes which are radially displaced and orthogonally oriented with respect to one another;
said second housing further including a radially extending portion disposed about said bore axially displaced from and coaxial to said first bore forming a first annular face;
a helical gear disposed within said cavity defined between said first and second housing;
said gear including a first diameter axially extending circumferential portion including teeth formed therein;
said gear including opposed second smaller diameter axially extending circumferential portions defining respective bearing surfaces; .
said second smaller diameter bearing surfaces of said helical gear being disposed in said first bore and said bore axailly dispalced from and coaxial to said first bore to provide radial bearing support for said helical gear;
said gear including a radially extending surface defining a second annular face disposed between respective first and second diameter portions of said helical gear acting in conjunction with said first annular face to provide an axial bearing support for said helical gear;
a worm gear having first and second opposed end portions forming cylindrical coaxial bearing surfaces and an intermediate portion having a worm thread formed therein;
said first and second portions bearingly carried in said second bore to provide alignment of said worm thread with said teeth of said helical gear;
means to maintain said structurally interfitting relationship between said first and second housing and secure said first housing to said base; and
a vertically extending screw drivingly engaged with said helical gear.
2. The invention of Claim 1 wherein said nut is affixed to said seat by structural interference with a channel member affixed to said seat.
3. The invention of Claim 2 wherein said nut is maintained in constant contact with said channel member by use of structurally opposed fulcrum points equidistantly located from a central axis of rotation extending through said nut and orthogonal to said screw.
4. The invention of Claim 1 wherein said helical gear further includes a centrally disposed blind ended bore having a pair of structurally discrete objects maintaining a point contact therebetween, with said base and with said blind ended bore.
5. The invention of Claim 4 wherein the discrete objects are spherical members.
6. The invention of Claim 1 wherein said worm gear having first and second opposed end portions forming cylindrical coaxial bearing surfaces are carried by spherical bearing members in said second bore.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE0602168T DE602168T1 (en) | 1991-09-05 | 1992-09-03 | HEIGHT ADJUSTMENT FOR VEHICLE SEAT. |
JP5505419A JPH06510258A (en) | 1991-09-05 | 1992-09-03 | Vertical adjustment device for seat position |
DE69216415T DE69216415T2 (en) | 1991-09-05 | 1992-09-03 | HEIGHT ADJUSTMENT FOR VEHICLE SEAT |
EP92919737A EP0602168B1 (en) | 1991-09-05 | 1992-09-03 | Vertical seat position adjuster |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US755,278 | 1991-09-05 | ||
US07/755,278 US5222710A (en) | 1991-09-05 | 1991-09-05 | Vertical seat position adjuster |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993004890A1 true WO1993004890A1 (en) | 1993-03-18 |
Family
ID=25038477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1992/007476 WO1993004890A1 (en) | 1991-09-05 | 1992-09-03 | Vertical seat position adjuster |
Country Status (5)
Country | Link |
---|---|
US (2) | US5222710A (en) |
EP (1) | EP0602168B1 (en) |
JP (1) | JPH06510258A (en) |
DE (2) | DE602168T1 (en) |
WO (1) | WO1993004890A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5556165A (en) * | 1994-06-17 | 1996-09-17 | Pickles; Joseph | Infinitely adjustable linear actuator for vehicle seat |
US5582461A (en) * | 1994-06-17 | 1996-12-10 | Itt Automotive, Inc. | Infinitely adjustable linear actuator |
FR2734135B3 (en) * | 1995-05-16 | 1997-04-30 | Wu Jung Te | ADJUSTABLE HAIRDRESSER ARMCHAIR |
US5607032A (en) * | 1995-06-07 | 1997-03-04 | Itt Automotive, Inc. | Rotatable shaft lock apparatus |
US5924668A (en) * | 1998-02-26 | 1999-07-20 | Meritor Automotive Canada, Inc. | Motorized vehicle seat lift mechanism |
DE10042248A1 (en) * | 2000-08-29 | 2002-03-28 | Bosch Gmbh Robert | Device for height adjustment of a seat by means of a drive motor |
DE10206029A1 (en) * | 2002-02-14 | 2003-08-28 | Bayerische Motoren Werke Ag | Height adjustment system for saddle of motorcycle uses electric motor driving threaded spindles with nuts engaging supports at ear end of saddle |
US20070108859A1 (en) * | 2005-11-16 | 2007-05-17 | John Stack | Seat motors assembly |
US10829009B2 (en) * | 2018-06-27 | 2020-11-10 | Faurecia Automotive Seating, Llc | Vehicle seat height adjustment mechanism |
US11613361B2 (en) | 2021-04-22 | 2023-03-28 | B/E Aerospace, Inc. | Vertical adjustment system for an aircraft seat |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3033510A (en) * | 1959-09-08 | 1962-05-08 | Gen Motors Corp | Vehicle seat adjuster |
GB897955A (en) * | 1959-10-31 | 1962-06-06 | Daimler Benz Ag | Improvements relating to adjustable seats |
US3951004A (en) * | 1974-03-20 | 1976-04-20 | International Telephone & Telegraph Corporation | Multiple position seat adjustment mechanism |
US4257569A (en) * | 1979-07-26 | 1981-03-24 | General Motors Corporation | Power seat adjusting mechanism for a platform seat |
US4284935A (en) * | 1979-05-24 | 1981-08-18 | General Motors Corporation | Vehicle power seat adjuster control system |
US5094419A (en) * | 1991-01-28 | 1992-03-10 | General Motors Corporation | Lift bar for power seat adjuster |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA534047A (en) * | 1956-12-04 | H. Mckinley William | Swivel chair mounting | |
US1694243A (en) * | 1926-03-31 | 1928-12-04 | Ritter Dental Mfg Company Inc | Dental chair |
US3182947A (en) * | 1963-01-29 | 1965-05-11 | Gen Motors Corp | Seat adjuster |
US3194530A (en) * | 1963-05-09 | 1965-07-13 | American Metal Prod | Seat adjuster |
DE2843395A1 (en) * | 1978-10-05 | 1980-04-24 | Rentrop Hubbert & Wagner | LIFTING DEVICE |
DE2903782A1 (en) * | 1979-02-01 | 1980-08-14 | Fichtel & Sachs Ag | ADJUSTMENT GEAR ARRANGEMENT |
US4509382A (en) * | 1983-03-25 | 1985-04-09 | General Motors Corporation | Preloaded screw actuator |
JPS60166537A (en) * | 1984-02-07 | 1985-08-29 | Aisin Seiki Co Ltd | Front and rear adjusting device for power type sheet |
US4721337A (en) * | 1986-02-10 | 1988-01-26 | Mazda Motor Corporation | Motor driven seat slide mechanism |
JPS63195038A (en) * | 1987-02-06 | 1988-08-12 | Mazda Motor Corp | Seat slide device of automobile |
JPH0639229B2 (en) * | 1988-08-29 | 1994-05-25 | 株式会社大井製作所 | Power seat slide device |
JPH0541944Y2 (en) * | 1988-12-26 | 1993-10-22 | ||
JPH0732249Y2 (en) * | 1990-05-29 | 1995-07-26 | 池田物産株式会社 | Power seat slide device |
US5172601A (en) * | 1991-08-12 | 1992-12-22 | Hoover Universal, Inc. | Drive nut and screw for seat adjuster |
-
1991
- 1991-09-05 US US07/755,278 patent/US5222710A/en not_active Expired - Fee Related
-
1992
- 1992-09-03 DE DE0602168T patent/DE602168T1/en active Pending
- 1992-09-03 WO PCT/US1992/007476 patent/WO1993004890A1/en active IP Right Grant
- 1992-09-03 DE DE69216415T patent/DE69216415T2/en not_active Expired - Fee Related
- 1992-09-03 EP EP92919737A patent/EP0602168B1/en not_active Expired - Lifetime
- 1992-09-03 JP JP5505419A patent/JPH06510258A/en active Pending
-
1993
- 1993-06-28 US US08/083,410 patent/US5299771A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3033510A (en) * | 1959-09-08 | 1962-05-08 | Gen Motors Corp | Vehicle seat adjuster |
GB897955A (en) * | 1959-10-31 | 1962-06-06 | Daimler Benz Ag | Improvements relating to adjustable seats |
US3951004A (en) * | 1974-03-20 | 1976-04-20 | International Telephone & Telegraph Corporation | Multiple position seat adjustment mechanism |
US4284935A (en) * | 1979-05-24 | 1981-08-18 | General Motors Corporation | Vehicle power seat adjuster control system |
US4257569A (en) * | 1979-07-26 | 1981-03-24 | General Motors Corporation | Power seat adjusting mechanism for a platform seat |
US5094419A (en) * | 1991-01-28 | 1992-03-10 | General Motors Corporation | Lift bar for power seat adjuster |
Also Published As
Publication number | Publication date |
---|---|
US5222710A (en) | 1993-06-29 |
EP0602168A1 (en) | 1994-06-22 |
US5299771A (en) | 1994-04-05 |
DE69216415T2 (en) | 1997-07-10 |
DE69216415D1 (en) | 1997-02-13 |
DE602168T1 (en) | 1995-06-08 |
JPH06510258A (en) | 1994-11-17 |
EP0602168B1 (en) | 1997-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5222402A (en) | Horizontal seat position adjuster | |
US5222710A (en) | Vertical seat position adjuster | |
EP2001703B1 (en) | Transmission device for seat adjuster | |
CA2179199C (en) | Vehicle power seat adjuster with self-aligning drive nut | |
US5456439A (en) | Vehicle power seat adjuster with self-aligning lead screw actuator | |
CA2667076C (en) | Power seat track drive assembly | |
US5575531A (en) | Vehicle power seat adjuster with end driven lead screw actuation | |
EP0315823A1 (en) | Tilting and telescopic travelling steering column arrangement | |
JP2003508141A (en) | Rotary actuator for furniture, especially adjustable, including bed and bed base | |
CN101213106A (en) | Vehicle seat track system | |
CA2107057A1 (en) | Housing and drive mechanism for screw lift of hospital bed | |
US5711184A (en) | Gimballed drive block for vehicle seat adjuster | |
JPH0577402B2 (en) | ||
CN109703420B (en) | Electronic burst formula flank structure that can overturn and have seat of this structure | |
US11458793B2 (en) | Vehicle height adjustment device | |
CN218400120U (en) | Automobile air conditioner air door controller | |
US20020074842A1 (en) | Device for and method of height adjustment of seat with a drive motor | |
GB2592734A (en) | Steering column sleeve comprising a system for adjusting a relative position between two tubes | |
CN212579674U (en) | Seat height adjusting device and seat system | |
CA2512258A1 (en) | Direct drive linear transfer device | |
JPS6387340A (en) | Rear view mirror device for automobile | |
KR102612219B1 (en) | Rail stowable electric column | |
CN220031778U (en) | Lifting hidden type copilot foot rest structure | |
JP2565934Y2 (en) | Car seat headrest device | |
CN116101137A (en) | Seat mounting assembly and vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1992919737 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1992919737 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1992919737 Country of ref document: EP |