WO1981001121A1 - Device for adjusting the position of a seat of a motor vehicle of similar and for adjusting the inclination of the back - Google Patents
Device for adjusting the position of a seat of a motor vehicle of similar and for adjusting the inclination of the back Download PDFInfo
- Publication number
- WO1981001121A1 WO1981001121A1 PCT/EP1980/000115 EP8000115W WO8101121A1 WO 1981001121 A1 WO1981001121 A1 WO 1981001121A1 EP 8000115 W EP8000115 W EP 8000115W WO 8101121 A1 WO8101121 A1 WO 8101121A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- locking
- backrest
- seat
- east
- housing
- Prior art date
Links
- 239000004952 Polyamide Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
- B60N2/2356—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls
- B60N2/236—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls linearly movable
-
- 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
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
-
- 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
- B60N2/90—Details or parts not otherwise provided for
- B60N2/919—Positioning and locking mechanisms
- B60N2/933—Positioning and locking mechanisms rotatable
Definitions
- Device for adjusting the position of a motor vehicle or the like seat and for adjusting the inclination of the backrest of such a seat.
- the invention relates to a device for adjusting the position of a seat cushion and a pivotably mounted backrest on the frame comprising a motor vehicle, aircraft or the like seat along a guide arranged on the floor of the motor vehicle or the like, and for adjusting the inclination of the backrest with a desired one Position of the seat and / or the backrest fixing locking device.
- the devices of this known type are distinguished by at least two lever or cable pulls, which are usually attached to the entry side of a motor vehicle seat and each have to be operated manually to adjust the length of the seat and the backrest. It is not possible to adjust the length of the seat and the backrest at the same time. Most constructions of this type also require laborious two-hand operation at least to adjust the seating position.
- the latching device has a
- First locking bolt which can be actuated by an electromagnet or the like and which can be locked into locking notches (locking ring) designed accordingly on the backrest, and - A second, with in the seat guide (guide or
- the solution according to the invention comprises only two locking bolts, of which at least the first locking bolt which fixes the inclination of the backrest is actuated by an electromagnet or the like, for example a relay.
- the second locking bolt, which fixes the seating position, is actuated either by the locking element which also interacts with the first locking bolt or by a further electromagnet.
- This construction has the advantage that only a single switching element, for example an electrical switch arranged between the front seats of a motor vehicle or on the outside of each backrest, is required for simultaneous adjustment of the seat position and backrest inclination is such.
- the operation of the device according to the invention is therefore correspondingly simple.
- a particularly compact solution is characterized in that both the first and the second locking bolts are mounted in a common housing arranged on the seat cushion frame or on the guide carriage attached to this, and that this housing is also part of one of the two pivot bearings for the Seat cushion frame is pivotally attached backrest.
- the device according to the invention is therefore integrated in one of the two backrest pivot bearings.
- the locking element is preferably a locking ring projecting axially into the housing with a plurality of locking notches arranged on the inside over a certain angular range corresponding to the desired pivotable area of the backrest, into which the first locking bolt can be locked under the action of a compression spring. Contrary to the effect of this compression spring, the locking bolt can be pulled out again by the electromagnet when the latter is excited. Then it is possible to change the backrest angle.
- the locking notches can be formed by an internal toothing provided on the locking ring at least over the maximum pivoting range of the backrest.
- This solution ensures particularly good adjustment of the backrest angle.
- the backrest can be pivoted against the action of a spiral spring or the like which is arranged in the housing and is supported at one end by this end and at the other end on the locking ring or directly on the backrest or in the direction away from the seat cushion.
- the backrest inclination can be adjusted in a simple manner by the back of a person sitting on the seat cushion. A quick individual adjustment of the backrest angle is possible.
- a particularly simple and compact solution for the actuation of the second locking pin is characterized in that the second locking pin is designed as a cross pin with a cross pin which interacts with the control cam provided on the locking ring, with a predetermined swivel position or inclination, preferably an upright position, the backrest, the control cam counteracts the action of an elastic element (spring), causing the cross pin and thus the second locking bolt to be lifted out of the locking slot in the seat guide.
- the second locking pin is raised by the control cam, the seat is unlocked and can be moved along the seat guide, e.g. Guide rails.
- the length of the control cam is preferably such that when the backrest is folded forwards, ie towards the seat cushion, the control cam and the cross pin are disengaged again and the second locking pin is accordingly again in its locking position, with the first locking pin at the same time after this folded position of the backrest in the front in a correspondingly arranged on the locking element (locking ring) Should click into place.
- This constructive development represents an effective theft protection.
- the driver's seat equipped with the solution according to the invention is moved or moved into its position closest to the steering wheel, with the backrest, for example, still in an upright position, so that the second locking pin is in its unlocked position. Then the backrest is folded towards the steering wheel or even onto the steering wheel, as a result of which the control cam releases the second locking bolt, so that it fits into the corresponding one
- the electromagnet which can be actuated by the first locking bolt is electrically coupled to the electrical system of the vehicle such that excitation is only possible when the ignition lock is unlocked by the ignition key, removal of the vehicle by a thief is practically no longer possible.
- the electrical coupling of the electromagnet to the electrical system of the vehicle is preferably such that it is likewise not possible to excite the electromagnet while the engine is running. It is then ensured that e.g. Children cannot inadvertently unlock the locking device while driving by pressing the switch button for energizing the electromagnet (s) actuating the locking bolts.
- the positively interacting elements of the locking device are highly stressed parts, these are preferably made of highly wear-resistant polyamide. This material also has the Advantage that it is relatively easy. Overall, the solution according to the invention, which can be built very compact anyway, is very light in weight.
- a backrest inclination memory is provided, which is in the form of an independent of the backrest, but around the The pivot axis of the same is designed to be pivotable, has a stop for the backrest and can be locked by the second locking pin in a selected pivot position.
- a particularly compact constructive solution of this type is characterized in that the locking disk is rotatably mounted on the housing receiving the locking bolts and the locking ring and covers the free end face thereof, ie facing away from the seat, with an arcuate recess extending radially outward Has locking notches, into which an axially extending crossbar attached to the second locking bolt projects, such that when the first and second locking bolts are unlocked, the locking disc is released and can be pivoted together with the backrest by being held in contact with the backrest by means of a spring, and that when the second locking bolt is locked, the crossbar engages in the locking notch of the locking disc determined by the desired or set pivot position of the backrest.
- the backrest inclination can be "programmed” in a simple manner using this solution.
- the "programming” is done in such a way that the desired inclination of the backrest is adjusted while carrying the locking disc, for example with the back of the person sitting on the seat cushion.
- the locking disc is held in contact with the backrest by the spring in such a way that it follows its pivoting movements when the first and second locking bolts are unlocked.
- the electromagnet actuating the second locking pin is de-energized, the crossbar slides into the locking notch pivoted into the area thereof by the pivoting movement of the backrest or locking disc.
- the end stop for the backrest and thus its inclination are then fixed or fixed.
- "Programming" is complete. It can be carried out again if both locking bolts are unlocked again at the same time.
- the seat is preferably mounted on guide rails and can be displaced backwards against the action of a tension spring when the second locking pin is unlocked or against the seat direction.
- the tension spring therefore tries to pull the seat forward or in the direction of the seat when the second locking bolt is unlocked.
- FIG. 1 is a device for adjusting the seat position and inclination of the backrest of the seat in axial section, 1 in cross section along line II-II, Fig. 3 shows part of the device of FIG. 1 in
- the device shown in FIGS. 1 to 3 consists of a cylindrical housing 1 fastened to the seat cushion frame or guide or seat slide 16 by means of screws 5, in which a first locking bolt 4, which can be actuated by an electromagnet 3, a with the backrest or its Side frame 6 fixed locking ring 2 and a cooperating with this second locking pin 13 find accommodation.
- the electromagnet 3 is connected via electrical lines 9, 10 to an electrical switch or to the power source of a motor vehicle.
- the locking ring 2 connected to the backrest 6 is slidably mounted in the housing 1 about the horizontal pivot axis 23. Housing 1 and locking ring 2 thus form at the same time one of the two pivot bearings for the backrest 6 pivotally attached to the seat cushion frame.
- the axial guidance of the locking ring 2 in the housing 1 is carried out by guide bolts 17 or the screw 5, which in a corresponding on the outside of the locking ring 2 protrude guide groove 24 provided.
- the backrest 6 can be pivoted counter to the effect of a spiral spring 8 arranged in the housing 1, which is supported at one end 8d on this (attachment 8b) and fastened at the other end 8a on the locking ring 2, in the direction away from the seat cushion.
- the guide carriage 16 is mounted so that it can be pushed back and forth on a guide rail 18 fastened to the floor of the motor vehicle or the like, wherein the guide carriage 16 is prevented from being lifted off the guide rail 18 by a retaining bolt 25 penetrating both parts.
- the free ends of the pin 25 extend through guide slots 26 which run in the longitudinal direction of the guide rail 18 and which, in cooperation with the pin 25, limit the displacement path on the guide rails 18.
- the first locking bolt 4, which can be actuated by the electromagnet 3, can be locked in locking notches 7 on the inside of the locking ring 2.
- the locking notches 7 are arranged distributed uniformly over an angular range a 1 in the circumferential direction and are designed as cylindrical blind holes in accordance with the cylindrical locking bolt 4.
- the angular range a 2 corresponds to the maximum swiveling range of the backrest to the rear, ie against the seat direction.
- the locking ring 2 rotates in the direction of arrow S 1 in FIG. 2. This rotation is of course only possible when the electromagnet 3 is energized, ie the locking pin 4 is attracted by the electromagnet 3 against the action of a compression spring, not shown.
- the locking pin 4 is movable in the radial direction, ie in the direction transverse to the pivot axis 23 of the backrest.
- the locking pin moves in the axial direction, ie parallel to the pivot axis 23 of the backrest.
- the notches would then of course have to the end face of a locking disc or the like connected to the backrest and pivotable together with the backrest.
- the locking ring 2 has on its lower side a control cam 14 which cooperates with a pin 13a which penetrates the second locking pin 13 transversely, such that the control cam 14 when the backrest 6 is in an upright position contrary to the action of a spring 12, the cross pin 13a and thus also the second locking pin 13 are raised.
- the control cam 14 is preferably dimensioned such that the second locking pin 13 is unlocked to the front over the entire pivoting range of the backrest.
- the cross pin 13a projects beyond the free end face of the housing 1. This makes it possible, by manually lifting the cross pin 13a, to unlock the seat lock even when the backrest is inclined backwards, in order to move the seat on the guide rails 18 forwards or backwards.
- the length of the control cam 14 is somewhat shorter (length 14a in Fig. 3). Then, when the backrest is folded forward, the control cam 14a and the transverse pin 15a disengage, ie the second locking pin 15 moves back into its east position. If a corresponding additional notch 7a is then provided on the inside of the east ring 2, the backrest can also be locked in the folded-forward position.
- This solution represents an effective anti-theft device.
- the driver's seat equipped with the last-described embodiment is brought into its position closest to the steering wheel. In this position, the backrest is then folded forward by an angle a 2 or onto the steering wheel.
- actuation of the second east bolt which cooperates with the east slots 22 in the guide rail, can also be carried out by an electromagnet or an Eelais.
- a backrest inclination memory can be attached in a simple manner. This is according to FIGS. 4 and 5 in the form of a rotatably mounted in a circumferential groove 27 of the housing 1 about the backrest pivot axis 23, the free, ie facing away from the seat facing the same locking disc.
- the locking disk 20 has two diametrically arranged guide pins 20d for rotating guidance in the circumferential groove 27, which guide pins via corresponding axial slots catch groove 27 can be used.
- Bastschei ge 20 has a lever or stop 20a interacting with the backrest or the side frame of the same, which is always held in contact with the backrest or the side frame by a spring 21 acting on the east plate 20.
- the east disc 20 is therefore always carried when pivoting the backrest when the locking bolts 4 and 13 are in their unlocking position.
- the locking disk 20 has an arcuate recess or an arcuate slot 20b with radially outwardly extending notches 20c.
- the recess 20b or the notches 20c protrudes axially from the second detent pin 13 outward he extending cross pin 13a, in such a way that when the first and second locking bolts 4 and 13 are unlocked, the locking disc 20 is released and pivotable together with the backrest 6 by using the spring 21 mentioned via the lever 20a in contact with the Backrest 5 is held, and that when the second locking pin 13 is locked, the cross pin 13a engages in the east notch 20c of the east disk 20 which is determined by the desired or adjusted pivot position of the backrest.
- the east notches 20c are arranged diametrically to the holes 7 arranged on the inside of the east ring 2 or bast holes 7, so that an exact programming of the backrest inclination is possible.
- the programming is carried out in such a way that the desired inclination of the backrest 6 is adjusted while carrying the east pane 20, for example with the person sitting on the seat cushion.
- the bast disk 20 is held in contact with the backrest 6 in such a way that it follows its pivoting movements when the first and second east bolts are unlocked also the bast disk 20 in its area pivoted bast notch 20c.
- the backrest can only be folded back again with the first locking bolt unlocked as far as the stop or lever 20a provided on the locking disc 20 allows.
- the locking disc 20, which is locked by the cross bolt provided on the second locking bolt, thus limits, together with the stop or lever 20a, the maximum inclination of the backrest to the rear. This maximum backrest inclination can of course be changed if both locking bolts are unlocked again. The programming is then carried out again in the manner described.
- the latching elements of the device described are highly stressed parts, they are preferably made of highly wear-resistant polyamide. However, it is equally conceivable to manufacture the device described from light metal or even a sheet metal construction. However, polyamide has proven to be the most suitable, since this material is also very light, so that a weight saving can also be achieved compared to the known lever constructions.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT7926860A IT7926860A0 (en) | 1979-10-29 | 1979-10-29 | AUTOMATIC REGULATOR FOR AUTOMOTIVE SEATS WITH SERVO-LOCKING CONTROL AND ANTI-THEFT DEVICE. |
IT26860 | 1979-10-29 | ||
IT828780 | 1980-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1981001121A1 true WO1981001121A1 (en) | 1981-04-30 |
Family
ID=26326022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1980/000115 WO1981001121A1 (en) | 1979-10-29 | 1980-10-23 | Device for adjusting the position of a seat of a motor vehicle of similar and for adjusting the inclination of the back |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0038810A1 (en) |
JP (1) | JPS56501392A (en) |
DE (1) | DE3049992D2 (en) |
WO (1) | WO1981001121A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0414954A1 (en) * | 1989-09-01 | 1991-03-06 | LIPOWEC, Walter A. | Solenoid powered seat latch preferably for motor cars |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2815796A (en) * | 1953-08-05 | 1957-12-10 | Gen Motors Corp | Tilting seat back lock |
DE1079475B (en) * | 1956-08-08 | 1960-04-07 | Stuttgarter Karosseriewerk Reu | Backrest which can be pivoted forward and is provided with a locking device, especially for the front seats of motor vehicles |
FR1244382A (en) * | 1959-09-14 | 1960-10-28 | Peugeot Cycles | Motor vehicle seat and the like |
US3328079A (en) * | 1965-11-24 | 1967-06-27 | Young Spring & Wire Corp | Reclining seat |
US3387885A (en) * | 1967-04-20 | 1968-06-11 | Ford Motor Co | Seat back latch mechanism |
US3761730A (en) * | 1972-07-10 | 1973-09-25 | Hi Ram Inc | Automatic seat latch unlocking apparatus and circuit therefor |
FR2194164A5 (en) * | 1972-07-21 | 1974-02-22 | Porsche Ag |
-
1980
- 1980-10-23 WO PCT/EP1980/000115 patent/WO1981001121A1/en not_active Application Discontinuation
- 1980-10-23 JP JP50240280A patent/JPS56501392A/ja active Pending
- 1980-10-23 DE DE80EP8000115T patent/DE3049992D2/en not_active Expired
-
1981
- 1981-05-04 EP EP80901941A patent/EP0038810A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2815796A (en) * | 1953-08-05 | 1957-12-10 | Gen Motors Corp | Tilting seat back lock |
DE1079475B (en) * | 1956-08-08 | 1960-04-07 | Stuttgarter Karosseriewerk Reu | Backrest which can be pivoted forward and is provided with a locking device, especially for the front seats of motor vehicles |
FR1244382A (en) * | 1959-09-14 | 1960-10-28 | Peugeot Cycles | Motor vehicle seat and the like |
US3328079A (en) * | 1965-11-24 | 1967-06-27 | Young Spring & Wire Corp | Reclining seat |
US3387885A (en) * | 1967-04-20 | 1968-06-11 | Ford Motor Co | Seat back latch mechanism |
US3761730A (en) * | 1972-07-10 | 1973-09-25 | Hi Ram Inc | Automatic seat latch unlocking apparatus and circuit therefor |
FR2194164A5 (en) * | 1972-07-21 | 1974-02-22 | Porsche Ag |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0414954A1 (en) * | 1989-09-01 | 1991-03-06 | LIPOWEC, Walter A. | Solenoid powered seat latch preferably for motor cars |
Also Published As
Publication number | Publication date |
---|---|
DE3049992D2 (en) | 1982-02-11 |
JPS56501392A (en) | 1981-10-01 |
EP0038810A1 (en) | 1981-11-04 |
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