CA1163547A - Device for regulating the position of a movable element in a vehicle, such as a seat of the latter - Google Patents
Device for regulating the position of a movable element in a vehicle, such as a seat of the latterInfo
- Publication number
- CA1163547A CA1163547A CA000390063A CA390063A CA1163547A CA 1163547 A CA1163547 A CA 1163547A CA 000390063 A CA000390063 A CA 000390063A CA 390063 A CA390063 A CA 390063A CA 1163547 A CA1163547 A CA 1163547A
- Authority
- CA
- Canada
- Prior art keywords
- flange
- jack
- sleeve
- movable element
- intermediate member
- 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
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 3
- 241001052209 Cylinder Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 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
- B60N2/04—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
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
-
- 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
- B60N2/07—Slide construction
- B60N2/0735—Position and orientation of the slide as a whole
- B60N2/0745—Position and orientation of the slide as a whole the slide path being curved
-
- 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
- B60N2/18—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 the front or the rear portion of the seat being adjustable, e.g. independently of each other
- B60N2/1807—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 the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
- B60N2/1828—Slides only
- B60N2/1832—Slides only including a curved slide
-
- 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
- B60N2/18—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 the front or the rear portion of the seat being adjustable, e.g. independently of each other
- B60N2/185—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 the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the drive mechanism
- B60N2/1853—Linear actuator, e.g. screw mechanism
Abstract
DEVICE FOR REGULATING THE POSITION OF
A MOVABLE ELEMENT IN A VEHICLE, SUCH
AS A SEAT OF THE LATTER
ABSTRACT OF THE DISCLOSURE
The device comprises a screw jack haying three members. The outer member of the jack comprises a sleeve open at both ends. The intermediate member of the jack extends through the sleeve. A flange tangent to the sleeve is rotatively mounted in a fixing member fixed to the movable element. In this way, it is possible to reduce the overall length of the device while retaining the articulation of the jack and a high capacity to withstand the forces created in the event of a shock.
A MOVABLE ELEMENT IN A VEHICLE, SUCH
AS A SEAT OF THE LATTER
ABSTRACT OF THE DISCLOSURE
The device comprises a screw jack haying three members. The outer member of the jack comprises a sleeve open at both ends. The intermediate member of the jack extends through the sleeve. A flange tangent to the sleeve is rotatively mounted in a fixing member fixed to the movable element. In this way, it is possible to reduce the overall length of the device while retaining the articulation of the jack and a high capacity to withstand the forces created in the event of a shock.
Description
3 ~ 4 ~
DESCRIPTIOI~
TITLE:
" Device for regulating the position of a mova~le element in a vehicle,such as a seat of the latter "
_ _ _ The present invention relates in a general way to a device for regulating the position of movable elements in an automobile vehicle or the like, such as for example the sliding roof, the hatch or rear doortor the cover of the rear luggage compartment. It in particular applies to the regulation of the position of a seat of such a vehicle.
French patent 2 447 494 discloses a device for regula-t-ing the position of a movable element, such as a seat, in a vehicle, which comprises a screw jack connected between a fixed point rigid with the body of the vehicle and a point rigid with the movable element and comprising at least three telescopic members whose re~spective screw-threads are in opposite directlons, and a device for driving in rota-tion coupled to an intermediate member of said screw jack while belng movable in translation in a direction parallel -to the axis of the jack with said intermediate member.
This provides a device wllicil a~fords a continuous re ~ a-tion and has a small overall hei~ht and withstands the large forces applied in the case of i.mpact on the vehicle.
However, in the illustrated embodiments of said patent, the outer member or blocX of the jacX is closed at its outer end in order to fix this member to the element to be 35~7 moved or to the structure of the vehicleO This results in a large longitudinal overall size of the device, par-ticularly when the latter is in its extended condition.
An object of the present invention is to modify this arrangement so as to reduce ~he longitudinal overall size of the device while retaining the high capacity to withstand the forces and the possibility of angular deviation possessed by the arrangement of said French patent 2,447,494.
This invention consequently provides a device for regulating the position of a movable element, such as a seat, relative to a body, such as the body of a vehicle, said device comprising a screw jack connected between a fixed member rigid with said body and a movable member rigid with the movable element, said screw jack compris-ing at least three telescopically-assembled members whose respective screwthreads are of opposite directions, and a device for driving in rotation which is coupled to an intermediate member of said telescopically-assembled members of the screw jack and is movable with said intermediate member in translation in a direction long-itudinally of the jack, wherein an outer member of said telescopically assembled member of the jack comprises a sleeve which is open at both ends and through which sleeve said intermediate member extends, and a flange which is tangent to said sleeve, a fixing member which is fixed ~ ~354 7 - 2a to one of two members consisting of said fixed member and said movable element being rotatively mounted on said flange.
Note that the opening of the end of the block enables the intermeaiate member to be driven by means of an actuat-ing cable, which has advantages from the point of view of the placement of the manual or electric driving device.
However, a direct driving of the intermediate member by a motor slidably mounted on the block may also be envisaged.
The invention will be explained hereinafter in detail ~ ~35~7 with reference to the accompanying drawings which show one embodiment. In the drawings :
Fig. 1 is a side elevational view of a sub-structure of a seat of a vehicle equipped with a regulating device according to the invention ;
Fig. 2 is a ~artial sectional view taken on line 2-2 of Fig. 1 ;
Fig. 3 is a sectional view taken on line 3-3 of Fig.2 ;
Figs. 4 and 5 are'elevational views of the block of screw jack and the fixing member therefor ;
Fig~ 6 is a partial top plan view of a modification of the regulating device according to the invention, and Fig. 7 is a sectional view taken on line 7-7 of Fig~6.
The seat sub-structure'shown in Fig. 1 comprises, on each side of the` seat, two superimposed slideways each formed by twQ itted-together section-members and rolling elements interposed therebetween. The lower slideway 1 is rectilinear and adapted to regulate the seat in the forward and rearward directions ; its lower section-member
DESCRIPTIOI~
TITLE:
" Device for regulating the position of a mova~le element in a vehicle,such as a seat of the latter "
_ _ _ The present invention relates in a general way to a device for regulating the position of movable elements in an automobile vehicle or the like, such as for example the sliding roof, the hatch or rear doortor the cover of the rear luggage compartment. It in particular applies to the regulation of the position of a seat of such a vehicle.
French patent 2 447 494 discloses a device for regula-t-ing the position of a movable element, such as a seat, in a vehicle, which comprises a screw jack connected between a fixed point rigid with the body of the vehicle and a point rigid with the movable element and comprising at least three telescopic members whose re~spective screw-threads are in opposite directlons, and a device for driving in rota-tion coupled to an intermediate member of said screw jack while belng movable in translation in a direction parallel -to the axis of the jack with said intermediate member.
This provides a device wllicil a~fords a continuous re ~ a-tion and has a small overall hei~ht and withstands the large forces applied in the case of i.mpact on the vehicle.
However, in the illustrated embodiments of said patent, the outer member or blocX of the jacX is closed at its outer end in order to fix this member to the element to be 35~7 moved or to the structure of the vehicleO This results in a large longitudinal overall size of the device, par-ticularly when the latter is in its extended condition.
An object of the present invention is to modify this arrangement so as to reduce ~he longitudinal overall size of the device while retaining the high capacity to withstand the forces and the possibility of angular deviation possessed by the arrangement of said French patent 2,447,494.
This invention consequently provides a device for regulating the position of a movable element, such as a seat, relative to a body, such as the body of a vehicle, said device comprising a screw jack connected between a fixed member rigid with said body and a movable member rigid with the movable element, said screw jack compris-ing at least three telescopically-assembled members whose respective screwthreads are of opposite directions, and a device for driving in rotation which is coupled to an intermediate member of said telescopically-assembled members of the screw jack and is movable with said intermediate member in translation in a direction long-itudinally of the jack, wherein an outer member of said telescopically assembled member of the jack comprises a sleeve which is open at both ends and through which sleeve said intermediate member extends, and a flange which is tangent to said sleeve, a fixing member which is fixed ~ ~354 7 - 2a to one of two members consisting of said fixed member and said movable element being rotatively mounted on said flange.
Note that the opening of the end of the block enables the intermeaiate member to be driven by means of an actuat-ing cable, which has advantages from the point of view of the placement of the manual or electric driving device.
However, a direct driving of the intermediate member by a motor slidably mounted on the block may also be envisaged.
The invention will be explained hereinafter in detail ~ ~35~7 with reference to the accompanying drawings which show one embodiment. In the drawings :
Fig. 1 is a side elevational view of a sub-structure of a seat of a vehicle equipped with a regulating device according to the invention ;
Fig. 2 is a ~artial sectional view taken on line 2-2 of Fig. 1 ;
Fig. 3 is a sectional view taken on line 3-3 of Fig.2 ;
Figs. 4 and 5 are'elevational views of the block of screw jack and the fixing member therefor ;
Fig~ 6 is a partial top plan view of a modification of the regulating device according to the invention, and Fig. 7 is a sectional view taken on line 7-7 of Fig~6.
The seat sub-structure'shown in Fig. 1 comprises, on each side of the` seat, two superimposed slideways each formed by twQ itted-together section-members and rolling elements interposed therebetween. The lower slideway 1 is rectilinear and adapted to regulate the seat in the forward and rearward directions ; its lower section-member
2 is sec'ured to the'floor 3 of the vehicle~ ~he upper slideway ~, which serves to correct the orientation or attitude of the seat, is curved, ie. ben~ in the vertical plane contalning the slideway 1. Its lower section-member 5 is fixed by two clevises, namely a front clevis 6 and a ~5 rear clevis 7, to the web of the upper section-member 8 of the slideway 1, and its upper section-member 9 is fixed to the lower side of the seat (not shown).
Each'slideway 1, 4 is ~rovided with a similar regulating ~ ~3~7 - 4 ~
device for relatively displacing the two sec~ion-members thereof. This device comprises a screw jack 10 constituted by three members screwed together.
The inner member of the jack 10 is a screwthreaded rod 11 located at the rear and having a rear end portion arti-culated by a horizontal and transverse pin 12 to a bracket -13 which is fixed, for example welded, to the lower section member 2, 5 of the considered slideway.
The intermediate member of the jack 10 is a tubular sleeve 14 which has an internal screwthread and e~ternal screwthread of opposite directions. The rear part thereof is screwed on the front part of the rod 11 and the centre part thereof is screwed in the third member 15 of the jack 10 from which member 15- the member 14 extends on both sides.
Fixed on the front end portion of the member l4 is an end portion of a control cable 16 whose other end is connected to a suitable actuating device (not shown), such as a crank or the ou-tput shaft of an electric motor.
The third member 15, which is -the outer member or block of the jack 10, comprises (Figs. 2 to 4) a short tubular sleeve 17 having an internal screwthread and open at both ends and carrying a tangential lateral flange 18. This sleeve and flange have, when viewed in elevation in a direc-tion perpendicular to the axis of the sleeve (Fig. 4), the shape of ~wo concentric circles truncated by two planes which are parallel to each other and to the axis of said circles~ diametrally opposed and spaced apart from each other a distance d (Fig. 4). The outer side of the flange 18 ~ ~3~47 has a blind central aperture 19 surrounded by a circular ~roove 20 ; thisdefines between the aperture and the groove a cylindrical axially extending collar 21. The lateral wall of the sleeve 17 includes adjacent the flange 18 two planar surfaces 22 interconnected by two cylindrical segments 23 whic~ deflne a truncated cylindrical shoulder 24 adjacent the inner ~ace of the flange 18, The flange 18 is very easily mounted, without any tool, in a cup 25 welded to the movable ~ection-me~ber 8 or 9 of the corresponding slideway 1, ~. The cup 25 comprises a flat bottom 26 welded to a flat surface 27 of the section-member 8, 9, and a .led~e 28 which is formed over twice and has a retaining surface 29 parallel to the bottom 26 and spaced from the latter by a distance very slightly greater than the thickness of the flange 18~ The cup is circular but truncated in the same way as said flange (Fig. 5), ie~
by two parallel planes. These two planes define in the led~ 28 two diametrally opposed openlngs having the afore-mentioned width d. Press-for,ned inwardly in the bottom 26 is a cylindrical collar 30.
In order to mount the block 15, it is placed coaxially and perpendicularly to the cup 25 and the flange 18 is inserted in the opening of the ledge 28, the ~ollar 30 ~ heing then received without clearance in the groove 20, and : 25 the block 15 is rotated through 90 so as to trap,with a slight clearance/the flange 18 in the led~e 28. In order to take up the axial clearance, a small cylinder 31 of elastic or plastics material, for example polyurethane, is . "~
Each'slideway 1, 4 is ~rovided with a similar regulating ~ ~3~7 - 4 ~
device for relatively displacing the two sec~ion-members thereof. This device comprises a screw jack 10 constituted by three members screwed together.
The inner member of the jack 10 is a screwthreaded rod 11 located at the rear and having a rear end portion arti-culated by a horizontal and transverse pin 12 to a bracket -13 which is fixed, for example welded, to the lower section member 2, 5 of the considered slideway.
The intermediate member of the jack 10 is a tubular sleeve 14 which has an internal screwthread and e~ternal screwthread of opposite directions. The rear part thereof is screwed on the front part of the rod 11 and the centre part thereof is screwed in the third member 15 of the jack 10 from which member 15- the member 14 extends on both sides.
Fixed on the front end portion of the member l4 is an end portion of a control cable 16 whose other end is connected to a suitable actuating device (not shown), such as a crank or the ou-tput shaft of an electric motor.
The third member 15, which is -the outer member or block of the jack 10, comprises (Figs. 2 to 4) a short tubular sleeve 17 having an internal screwthread and open at both ends and carrying a tangential lateral flange 18. This sleeve and flange have, when viewed in elevation in a direc-tion perpendicular to the axis of the sleeve (Fig. 4), the shape of ~wo concentric circles truncated by two planes which are parallel to each other and to the axis of said circles~ diametrally opposed and spaced apart from each other a distance d (Fig. 4). The outer side of the flange 18 ~ ~3~47 has a blind central aperture 19 surrounded by a circular ~roove 20 ; thisdefines between the aperture and the groove a cylindrical axially extending collar 21. The lateral wall of the sleeve 17 includes adjacent the flange 18 two planar surfaces 22 interconnected by two cylindrical segments 23 whic~ deflne a truncated cylindrical shoulder 24 adjacent the inner ~ace of the flange 18, The flange 18 is very easily mounted, without any tool, in a cup 25 welded to the movable ~ection-me~ber 8 or 9 of the corresponding slideway 1, ~. The cup 25 comprises a flat bottom 26 welded to a flat surface 27 of the section-member 8, 9, and a .led~e 28 which is formed over twice and has a retaining surface 29 parallel to the bottom 26 and spaced from the latter by a distance very slightly greater than the thickness of the flange 18~ The cup is circular but truncated in the same way as said flange (Fig. 5), ie~
by two parallel planes. These two planes define in the led~ 28 two diametrally opposed openlngs having the afore-mentioned width d. Press-for,ned inwardly in the bottom 26 is a cylindrical collar 30.
In order to mount the block 15, it is placed coaxially and perpendicularly to the cup 25 and the flange 18 is inserted in the opening of the ledge 28, the ~ollar 30 ~ heing then received without clearance in the groove 20, and : 25 the block 15 is rotated through 90 so as to trap,with a slight clearance/the flange 18 in the led~e 28. In order to take up the axial clearance, a small cylinder 31 of elastic or plastics material, for example polyurethane, is . "~
3 5 4 ~
compressed between the bottom of the blind aperture 19 and the flat surface 27 of the section-member 8, 9, this cylin-der 31 extending through the collar 30.
In this position,-the surface 29 of the ledge 28 retains the flange 18 an.d the collar 30 ensures the center-ing thereof. The block 15 may however turn with respect to the cup 25, with a radi~l clearance between the.shoulder ~4 and the confronting .lédge 28, and thè axis of its screw-thread is very close to the section-member 8, 9.
If great forces are exerted on the seat, in the event of a shock and in particular in the case where the safety belt is directly anchored to the seat, these forces put : the jack under tensile stress between the block 15 and the bracket 13. They are transmitted, in the region of the block 15, to the weld of the.cup 25 and the collar 30 and, if the latter yields, to the flange 28. The welding of the cups 25 may be easily effected in such manner as to impart a high strength to tnese connections~ Trials have shown that the arrangement is capable of withstanding all the forces which may be encountered in the case of a shock.
~ he fact that the block 15 is capable of rotating is of interest not only when.the element to be moved efects a non-rectilinear movement, which is the case of the section-.
member 9, but also in the opposite case (section-member 8) owing to inevitable defects in alignment upon assembly.
In order to modify the longitudinal position or the orientation of the seat, the corresponding cable 16 is rotated and this modifies the extension of the associated jack lO,as described in said patent. The flexibility of the cable~ 16 enables placing their actuating devices in the most appropriate places, in particular outside the region of the sub-structure of the seat.
Figs. 6 and 7 show tha~ the jack 10 may be driven directly by an electric motor 32 carried by the block 15 and slidably mounted on the latter in a manner similar to that disclosed in said French patent 2 447 494.
For this purpose, the block 15 carries,in the upper part thereof,a longitudinally extending rib 33 which acts as a guide for a vertical rail 34 which is fixed to the body of the motor 32, the rib 33 extending through a centre slot 35 of the rail 33. The intermediate screw member 14 is moulded and its closed end 36 is engaged by the output member of a speed reducer 37 which is combined with the motor 32, this screw member being connected to move in translation with said output member.
Thus, when the motor 32 rotates, the block 15 provides the reaction torque and the screw 14 is driven in rotation and displaces the section-member 8 or 9 with respect to the fixed point 12. The motor moves with the screw member 14, next to the latter. The short len~th of the device, in particul~r in the extended condition thereof, enables it to be completely disposed, including the motor 32, under the front part of the seat where the deflection of the squab ~art of the seat is small.
,,
compressed between the bottom of the blind aperture 19 and the flat surface 27 of the section-member 8, 9, this cylin-der 31 extending through the collar 30.
In this position,-the surface 29 of the ledge 28 retains the flange 18 an.d the collar 30 ensures the center-ing thereof. The block 15 may however turn with respect to the cup 25, with a radi~l clearance between the.shoulder ~4 and the confronting .lédge 28, and thè axis of its screw-thread is very close to the section-member 8, 9.
If great forces are exerted on the seat, in the event of a shock and in particular in the case where the safety belt is directly anchored to the seat, these forces put : the jack under tensile stress between the block 15 and the bracket 13. They are transmitted, in the region of the block 15, to the weld of the.cup 25 and the collar 30 and, if the latter yields, to the flange 28. The welding of the cups 25 may be easily effected in such manner as to impart a high strength to tnese connections~ Trials have shown that the arrangement is capable of withstanding all the forces which may be encountered in the case of a shock.
~ he fact that the block 15 is capable of rotating is of interest not only when.the element to be moved efects a non-rectilinear movement, which is the case of the section-.
member 9, but also in the opposite case (section-member 8) owing to inevitable defects in alignment upon assembly.
In order to modify the longitudinal position or the orientation of the seat, the corresponding cable 16 is rotated and this modifies the extension of the associated jack lO,as described in said patent. The flexibility of the cable~ 16 enables placing their actuating devices in the most appropriate places, in particular outside the region of the sub-structure of the seat.
Figs. 6 and 7 show tha~ the jack 10 may be driven directly by an electric motor 32 carried by the block 15 and slidably mounted on the latter in a manner similar to that disclosed in said French patent 2 447 494.
For this purpose, the block 15 carries,in the upper part thereof,a longitudinally extending rib 33 which acts as a guide for a vertical rail 34 which is fixed to the body of the motor 32, the rib 33 extending through a centre slot 35 of the rail 33. The intermediate screw member 14 is moulded and its closed end 36 is engaged by the output member of a speed reducer 37 which is combined with the motor 32, this screw member being connected to move in translation with said output member.
Thus, when the motor 32 rotates, the block 15 provides the reaction torque and the screw 14 is driven in rotation and displaces the section-member 8 or 9 with respect to the fixed point 12. The motor moves with the screw member 14, next to the latter. The short len~th of the device, in particul~r in the extended condition thereof, enables it to be completely disposed, including the motor 32, under the front part of the seat where the deflection of the squab ~art of the seat is small.
,,
Claims (9)
1. A device for regulating the position of a movable element, such as a seat, relative to a body, such as the body of a vehicle, said device comprising a screw jack connected between a fixed member rigid with said body and a movable member rigid with the movable element, said screw jack comprising at least three telescopically-assembled members whose respective screwthreads are of opposite directions, and a device for driving in rotation which is coupled to an intermediate member of said telescopically-assembled members of the screw jack and is movable with said intermediate member in translation in a direction longitudinally of the jack, wherein an outer member of said telescopically assembled member of the jack comprises a sleeve which is open at both ends and through which sleeve said intermediate member extends, and a flange which is tangent to said sleeve, a fixing member which is fixed to one of two members consisting of said fixed member and said movable element being rotatively mounted on said flange.
2. A device according to claim 1, wherein the fixing member is a cup welded to the movable element.
3. A device according to claim 2, wherein said cup comprises a retaining ledge and a centering centre collar engaged in a circular groove in said flange.
4. A device according to claim 3, wherein an elastically yieldable means is compressed between the movable element and said flange so as to urge said flange against said ledge of said cup.
5. A device according to claim 3, wherein said sleeve has a shoulder in confronting relation to said ledge of said cup.
6. A device according to claim 3, 4 or 5, wherein said cup, said sleeve and said flange have a circular shape truncated by two diametrically opposed parallel planes.
7. A device according to claim 1, comprising an actuating cable having one end portion fixed to one end of said intermediate member and an opposite end portion fixed to a device for driving said cable in rotation.
8. A device according to claim 7, wherein said end of the intermediate member is a front end thereof.
9. A device according to any one of the claims 1 to 3, comprising a motor-speed reducer unit having an output member and a body, which body is slidably mounted on the outer member of said telescopically assembled members of said jack, said output member being drivingly connected to an end of said intermediate member and said end of said intermediate member and said output member being connected to move together in translation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8024212A FR2494375A2 (en) | 1980-11-14 | 1980-11-14 | DEVICE FOR ADJUSTING THE POSITION OF A MOVABLE ELEMENT IN A VEHICLE, SUCH AS THE SEAT THEREOF |
| FR8024212 | 1980-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1163547A true CA1163547A (en) | 1984-03-13 |
Family
ID=9247967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000390063A Expired CA1163547A (en) | 1980-11-14 | 1981-11-13 | Device for regulating the position of a movable element in a vehicle, such as a seat of the latter |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0052545B1 (en) |
| JP (1) | JPS57114732A (en) |
| BR (1) | BR8107386A (en) |
| CA (1) | CA1163547A (en) |
| DE (1) | DE3164602D1 (en) |
| ES (1) | ES261739Y (en) |
| FR (1) | FR2494375A2 (en) |
| MX (1) | MX153172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11135945B2 (en) | 2017-07-12 | 2021-10-05 | Keiper Seating Mechanisms Co., Ltd. | Seat adjustment mechanism for a vehicle seat, and vehicle seat |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154924A (en) * | 1984-01-24 | 1985-08-14 | Ikeda Bussan Co Ltd | Swing seat |
| JPS60121938U (en) * | 1984-01-27 | 1985-08-17 | 池田物産株式会社 | Power slide device for vehicle seats |
| JPS60189444U (en) * | 1984-05-29 | 1985-12-16 | 自動車電機工業株式会社 | power seat device |
| JPH051467Y2 (en) * | 1986-02-10 | 1993-01-14 | ||
| JPH0356421Y2 (en) * | 1986-06-25 | 1991-12-18 | ||
| JPH0619392Y2 (en) * | 1987-04-13 | 1994-05-25 | アラコ株式会社 | Seat slide device for walk-in seat |
| DE4440116A1 (en) * | 1994-11-11 | 1996-05-15 | Faure Bertrand Sitztech Gmbh | Electric adjustment device e.g. for motor vehicle seat |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB159913A (en) * | 1919-09-13 | 1921-03-17 | Godfrey Edmund Harrison | Improved screw and nut mechanism |
| US2953934A (en) * | 1958-04-28 | 1960-09-27 | Sundt Edward Victor | Mechanism for operating telescopic antennas or the like |
| US3404580A (en) * | 1967-04-18 | 1968-10-08 | Sargent Industries | Ball screw actuator |
| US3499344A (en) * | 1968-05-13 | 1970-03-10 | Ferro Mfg Corp | Power recliner assembly |
| US4041795A (en) * | 1976-01-29 | 1977-08-16 | Teledyne Brown Engineering | Mechanism for converting rotary motion into precise low speed linear motion |
| FR2447494A1 (en) * | 1979-01-24 | 1980-08-22 | Mecanismes Comp Ind De | DEVICE FOR ADJUSTING THE POSITION OF A MOVABLE ELEMENT IN A VEHICLE, SUCH AS THE SEAT THEREOF |
-
1980
- 1980-11-14 FR FR8024212A patent/FR2494375A2/en active Granted
-
1981
- 1981-10-27 DE DE8181401702T patent/DE3164602D1/en not_active Expired
- 1981-10-27 EP EP81401702A patent/EP0052545B1/en not_active Expired
- 1981-11-11 ES ES1981261739U patent/ES261739Y/en not_active Expired
- 1981-11-13 MX MX190104A patent/MX153172A/en unknown
- 1981-11-13 BR BR8107386A patent/BR8107386A/en unknown
- 1981-11-13 CA CA000390063A patent/CA1163547A/en not_active Expired
- 1981-11-14 JP JP56182971A patent/JPS57114732A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11135945B2 (en) | 2017-07-12 | 2021-10-05 | Keiper Seating Mechanisms Co., Ltd. | Seat adjustment mechanism for a vehicle seat, and vehicle seat |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3164602D1 (en) | 1984-08-09 |
| ES261739Y (en) | 1982-12-01 |
| ES261739U (en) | 1982-05-16 |
| FR2494375A2 (en) | 1982-05-21 |
| MX153172A (en) | 1986-08-15 |
| FR2494375B2 (en) | 1984-04-20 |
| JPS57114732A (en) | 1982-07-16 |
| EP0052545A1 (en) | 1982-05-26 |
| BR8107386A (en) | 1982-08-10 |
| EP0052545B1 (en) | 1984-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |