DE10036553B4 - Device for anchoring a seat to a vehicle floor - Google Patents

Abstract

Device for anchoring a seat (10) to a vehicle floor with a rail (26) which is fixedly connected to the vehicle floor and extends in the longitudinal direction and which in cross section has an undercut area (30) designed for slidingly guiding a sled-like insert element (50) and a plurality of preferred has openings (40) arranged at regular intervals, which are designed to interact with a locking element (66) preventing the seat placed on the slide from moving in the longitudinal direction, characterized in that the insert element (50) consists of a plurality of pivotably articulated slide elements (48, 58), which are designed to accommodate a torsional and / or transverse force acting on the rail about an axis defined by the longitudinal direction or transversely thereto, and are guided in the rail (26) in such a way that even with a twisted rail free sliding of the insert element in the S chiene is done.

Description

The invention relates to a device for anchoring a seat to a vehicle floor with the features the preamble of claim 1; further relates to the present Invention a use of such a device.

From the state of the art So-called airline rail generally known, a rail for fastening of seats, lashing or holding devices in vehicles of various Kind with a lengthways - preferred in the direction of travel - extending, undercut Groove and a plurality of provided for anchoring purposes in the groove, usually breakthroughs arranged at regular intervals.

Not just in aircraft, too in the car and truck sector this flexible type of seating and Load attachment increasingly application, as known to the generic type Way flexible, with little installation effort and easy to do changing Wise cargo and passenger compartments can be designed.

So seats or the like. at a generic airline rail to be fastened Devices connected, for example, to a slide that slides in the undercut groove of the airline rail and included Means is provided, the sled - and thus the attached to it Seat - on anchor a predetermined position in the rail.

However, such a known device have some disadvantages, in particular in practical operation and when the airline rail is heavily loaded prove to be in need of improvement: on the one hand, this brings applications for the airline rail in a longer vehicle floor Problem of torsion, namely a twisting of the floor (and thus also the airline rail embedded in it) during the Driving body movements. Such twists - or others, Static or dynamic forces acting on the vehicle floor - then lead to a corresponding influence on the by the rail groove certain path, with the effect that a one-piece sled, which is slidably received in the groove, jammed, canted or is limited in its adjustment possibilities in another way.

Furthermore, known fixings about sitting on such a sled, which is then used for fixation the sitting position by engaging in one of the openings of the Rail is set, the disadvantage of that - due to the weakest element in the chain: locking element - slide - connection the seat - a maximum force input due to the mechanical stability of the slide is limited and therefore in practice often only one pair of airline rails forces associated with the assembly of a single seat was, but not a plurality of seats (such as a bench or the like) fixed to only one rail (or a pair of rails) could be.

In addition, known, to Use in an airline track provided sledges have the disadvantage of being complicated and cumbersome the handling, in particular the attachment of mounted devices, to be.

An airline rail for securing wheelchairs in vehicles is in the DE 297 06 258 U1 to the applicant. their DE 198 51 392 A1 also describes a device for temporarily connecting a movable object - such as a vehicle seat - with such a holding rail, at least one clamping pin protruding from the device, which can be inserted into the longitudinal groove and is designed to be displaceable with a foot plate in the undercut region of the holding rail; the clamping pins - and at least one locking bolt at a distance from them - are each axially displaceable on the device and are connected to an actuating unit for joint control of their movement. That actuating unit has a link plate with link slots or control cams, in which link pins for the clamping pins and the locking bolts are guided.

Also the EP 0 709 247 discloses retaining rails with shaped ribs, which overlap the undercut area of a longitudinal groove, into which holes are made at intervals from one another, the diameter of which is greater than the distance between the shaped ribs from one another, for receiving anchoring strips as a counterpart. Foot blocks with plate-like shapes protrude from the bottom, which can be inserted into those undercut longitudinal grooves and then fixed by hand using a vertical pivot pin. It is an element that is difficult to handle.

Object of the present invention is therefore a generic anchoring device so that proper movement of the sled also under torsion or other twisting of the vehicle floor with an airline rail sitting in it is possible; a solution should also be created be in a rail by a structural unit, such as a Seat to increase force to be applied with the aim of paralleling the device also for a plurality fastening seats or the like. to make it suitable without Impacts the load capacity exceeding the system, maximum torque exceeded becomes.

The object is achieved by the devices having the features of claims 1 and 8 and the use according to claim 11; advantageous developments of the invention are in the Unteran sayings described.

According to the invention, the sled-like insert element from a plurality - well at least two - swiveling articulated slide elements that are used to hold a one by the longitudinal direction defined axis or transverse to this acting on the rail Torsion and / or Shear force developed and guided in the rail so that even when twisted Rail free insertion of the insert element in the rail can. So this insert element is able to get through Torsion of a vehicle floor resulting cross-sectional changes to match the undercut in the airline rail. So that will advantageously avoided an extreme state of torsion the vehicle floor to jam the insert element or slide leads; rather, the slides remain sliding even in such operating conditions in the one desired by the operator Way movable.

It has been particularly advantageous it also turned out to be plastic as a material for a sliding element use that as part of a slide element for sliding in the undercut of those made from a metallic material Airline rail is formed. Not only does such a part offer simple and inexpensive Production and preferred sliding properties, can also by a suitable dimensioning of the sliding element, a snap connection realize the assembly or disassembly in a remarkable way simplified.

The sledge-like is also preferred Insert element as an elongated carrier arrangement with a pair articulated slide or connecting elements at the ends designed.

Since also, according to another preferred embodiment of the invention, longitudinal forces (i.e. forces acting in the direction of travel, such as they arise in the event of an impact or braking) directly by the BEFE stigt holding element or this assigned locking element are added, the insert element or the sledge - under bypassing it when force is applied to the rail - mechanically relieves and can be correspondingly easier or as a plastic part be formed.

The solution of the immediate force input from Seat in the airline rail (without interposing the slide), for which according to claim 8 independent Protection is also advantageously achieved, that the maximum force that entered the rail in this way can be opposite the state of the art can be increased significantly: Now the sled as the weakest The link in the force input chain is eliminated, the immediate one offers Force input of the seat into the rail, namely through interaction the blocking element on the holding element with the opening in the rail, the possibility, a plurality of seats or the like. Attachment units with the To connect the rail without exceeding safety-related load limits become.

While the present invention is particularly advantageous for the variable Attachment of one or more seats is suitable, however, is the present Invention not limited to this; rather, it makes sense to apply the present invention to others, to be placed on and secured to airline rails Units, such as containers, cargo securing systems or others Units to apply.

It is also particularly preferred according to one embodiment the invention to provide the carriage with a fuse that against slipping in the longitudinal direction secures, namely by the locking element according to the invention, which is preferred by means of spring force with its profile (e.g. from the inside) in the breakthroughs pressed into the airline rail will and so for a solid, yet simple - i.e. by depressing or the like - removable anchoring provides. Due to the preferred arrangement of the Profile engagement in the rail in the direction of travel in front of the locking element joint (whereby this, relative to the surface of the airline rail, is deeper lies) will also be particularly cheaper Achieved a self-locking or locking, namely by that by applying force to the sled in the direction of travel (namely e.g. in the event of an impact or the like) an upward-acting and thus the Profiling in the breakthroughs force component of the airline rail arises.

While this embodiment especially independent of the solution described above of the direct force input from the seat into the rail a combination is also conceivable; in such a Would be the case then to provide a unit that can be moved if necessary of the slide can release the locking element.

The result is through the present Invention thus created a way, the proven airline rail in their possible uses to further flexibilize and especially for conditions accessible to make at which strong torsion and / or twisting of the vehicle floor have jammed existing sledges, and / or wherein the mechanical limits of previous sledges an upper limit for a maximum Load of traditional airline fastening systems to have.

Other advantages, features and details of Invention result from the following description more preferred embodiments as well as from the drawings; these show in

1 : a sketched side view of an in a floor rail anchored vehicle seat according to a first embodiment of the invention;

2 : an oblique view of the bottom rail including all parts removed from it 1 or a second embodiment of the invention;

3 : an enlarged section of the floor rail designed as an airline profile 2 ;

4 : an enlarged part of the 1 ;

5 : one of the 1 about corresponding representation of the folded up and inclined vehicle seat;

6 to 8th : Side views of the vehicle seat in different positions;

9 : an oblique view of a section of another airline profile with an associated slide-in slide;

10 : the enlarged top view of the slide of the 9 ;

11 : the longitudinal section through 10 along their line XI-XI.

A vehicle seat 10 exists in a vehicle, not shown 1 from a floor-mounted seat part or seat frame 12 with an approximately horizontal seat 14 as well as one - in a joint area 16 associated with it - on the seat 14 folded backrest 18 , from the free end of which there is a headrest 20 protrudes.

The seat frame 12 of the vehicle seat 10 is through two front foot profiles 22 and two rear rear feet 24 with two parallel holding or floor rails 26 releasably connected, of which in 1 only one can be seen. Both the foot profiles 22 as well as the rear profiles 24 are each around an axle bolt as holding elements 23 limited swiveling.

The holding or floor rail 26 is designed as a so-called airline profile and has an undercut longitudinal groove in its longitudinal axis A. 28 a mouth width b of, for example 11 mm and a cross-sectional width e of the undercut area 30 of 20 mm on. At a distance from the groove deepest 32 are in the side walls 34 of the undercut area 30 two side grooves opposite each other on both sides of the longitudinal axis A of the rail 36 arranged, from the lower edge of each a horizontal cantilever 37 protrudes. This longitudinal groove 28 is in the area of - through the undercut area 30 overlapping formed ribs offering the groove edges - rail surface 38 with holes or similar breakthroughs 40 provided, whose center lines M run at intervals f of 25 mm. The bore diameter d is somewhat shorter than that cross-sectional width e. On the plane of the rail surface 38 border on both sides downward inclined desk surface strips 39 ,

In the floor track 26 are two pairs of cross-sectionally L-shaped sliding elements 42 made of plastic with outer side ribs 43 used. In the upper edges of the sliding elements 42 molded-in edge recesses 44 Partial circular contour are used to hold cross bolts 46 two seat shots 48 , The components of an insert element 50 for the floor track 26 are. The seat shots 48 each consist of two parallel metal strips 51 and their lower edges connecting brackets 52 , Thanks to the choice of materials, the tolerance compensation in the floor rail 26 serving sliding elements 42 there are no rattling noises when they are moved; this arrangement also allows easy mounting of the seat holder 48 and plastic sliding element 42 by snapping or a clip connection.

Each of the sliding elements 42 is by means of a connecting bolt 54 on one - two cranked side stripes 56 containing - connecting body 58 of the insert element 50 articulated, the distance i of the connecting bolts 54 measures 400 mm from each other, for example. Another connecting bolt 54 _a is outside of those seat shots 48 between the hard shoulder 56 intended.

This in 2 shown, multi-part slide-like insert element 50 from connecting body 48 and in each case hinged end seats 48 - for connection with the plastic sliding elements 42 - also advantageously allows torsional forces or moments to be absorbed, which inevitably occur when the arrangement is installed in a vehicle floor, particularly in the case of longer lengths; due to the multi-part shape according to the invention, the arrangement of the insert element remains 50 even with torsional stress or the like. contaminated floors in the airline rail 26 movable and does not lead to undesirable and disadvantageous clamping effects, as is the case with devices according to the prior art.

The in 2 left connecting bolt 59 passes through the end shaped in the manner of a cross sleeve between the side strips 56 protruding leaf spring 60 as an energy accumulator, a dowel pin below it 59 can rest. The in 2 right connecting bolt 54 penetrates a locking profile 62 from a channel profile with - holes 63 for the connecting bolt 54 offering - sidewalls 64 , whose height h to the articulation end of the locking profile 62 increases. From the outer surface of the two side walls 64 connecting channel bottom 65 three locking cylinders protrude 66 from blocking elements whose center distance f1 from each other is the distance f of those holes 40 the floor track 26 and their circumference corresponds to the bore contour.

This arrangement of the locking profile 62 on the one hand, the insert element is advantageously achieved 50 at approximately in the area of the front foot profile 22 attached vehicle seat 10 - In a predetermined longitudinal position in the floor or airline rail 26 can be kept where also the constructive realization of the 2 by arranging the locking cylinder 66 relative to the articulation end of the locking profile 62 leads to a self-locking effect in the direction of travel x, so that in particular movements of the arrangement along the direction of travel x, such as can also be the result of an moment of inertia in the event of an impact, reinforce the blocking effect. Specifically, this effect is achieved by - the locking cylinder engaging 66 into the holes 40 the airline rail 26 - through the pair of holes 63 Defined swivel level against the direction of travel x and - based on the height of the airline rail 26 - below the locking cylinder 66 is arranged so that a loading of the arrangement with a force input in the direction of travel x automatically results in a force on the locking profile 62 is deflected in the upward direction z. As a result, this leads to the desired reinforcement of the blocking effect.

The related to the 2 and 3 described arrangement can now be directly with a vehicle seat 10 according to 1 use or independently of this. In particular, it is also provided that in the 1 . 4 to 8th arrangement described in detail the insert element 50 for the airline rail 26 no spring / locking profile pair 60 . 62 has, but rather the locking of the vehicle seat 10 in the manner according to the invention by intervening appropriately, directly on the vehicle seat 10 fastened locking knobs in the holes 40 the airline rail 26 he follows.

The vehicle seat 10 has a pair of locking knobs for this purpose 68 on the already mentioned rear foot 24 of the seat part 12 on; these locking knobs 68 are at one in 1 . 4 . 5 a sloping outer edge 69 having profile element 70 fixed on the underside. The rear foot 24 also has two other profile elements 72 . 73 on, each at the free end of the profile with a - by a limited pivoting pawl 75 undercut - receiving opening 76 for one of the cross bolts 46 the assigned seat holder 48 is provided. Also the front foot profiles, each consisting of a single profile 22 are equipped with bolt receptacles that hold the cross bolts 46 the one in the insert element 50 front seat mount 48 enclose.

The vehicle seat 10 is according to 6 with its two front foot profiles 22 to the front - each from a sliding element 42 and an attached seat holder 48 educated - sledge 78 of the insert element 50 set and locked with these; the vehicle seat 10 , in its seat frame 12 the rear feet 24 store swiveled in, can be in the longitudinal direction of the slide 78 be moved and positioned.

Now the seat frame 12 - as in 7 - around the axle bolts 23 of their front foot profiles 22 Turned backwards in the direction of the arrow y, the rear feet swivel 24 from the seat frame 12 out. In 8th the rear feet then lower 24 into the floor rails 26 and lock onto the rear sled 78 , The two locking knobs grip 68 of the rear foot 24 in the floor track 26 and then prevent the vehicle seat from moving 10 in the longitudinal direction of the rail.

It is thus advantageously achieved that, in contrast to the known prior art, a locking element in the form of the locking knobs now intervenes for the first time 68 into the airline track 26 to determine the seating position in the direction of travel x, that occurs immediately, ie not with the interposition of the insert element 50 or another, in the airline rail 26 guided element, on the vehicle seat 10 attached or articulated components the force input into the airline rail 26 cause and thus significantly increase the load capacity of the connection in the direction of travel x. Like that 1 respectively. 8th show, is the locked position shown in such a way - in the event of a collision of the vehicle - considerable force directly through the seat arrangement in the floor rail 26 passed, which opens up completely new design options when realizing a seat coupling of the present type. In particular, the arrangement shown now makes it possible for the first time to variably and easily move more than one individual seat in the manner described, but nevertheless to fix it firmly in the event of an impact; So far, the coupling has always been carried out via an insert element in the undercut of the airline rail 26 and thus already offered a constructive limit for the maximum force input which can be exceeded considerably by the procedure according to the invention.

Together with the further aspect of the invention, namely the multi-part design of the insert element for absorbing torsional moments or the like 50 This results in a variable seat fastening that is optimized both in terms of its operation and in terms of its mechanical-structural properties, which is ideally suited, for example, for use in a variable interior of a vehicle which is also provided for seating.

As an alternative embodiment, the invention also includes, in particular, an embodiment of the 2 clarified sliding elements 42 as well as the floor rails 26 without lateral projecting side ribs 43 or without the assigned to it 3 described side grooves 36 , Rather, this configuration provides that the side walls 56 of the insert element 50 flush with sections of the sliding element 42 complete, so that a common, continuous and flat side wall is created, along a correspondingly flat inner side wall 34 _a a floor rail 26 _a can slide along; one trained in this way bottom track 26 _a is 9 refer to.

The floor track 26 _a the 9 is an in their undercut longitudinal groove 28 insertable slide 80 assigned as a seat holder of a U-shaped metal bracket in plan view 82 contains; its longitudinal leg 84 are by two the longitudinal axis B of the slide 80 crossing welding studs 86 connected. These welding studs 86 are in 11 near the top 81 of the slide 80 on its metal bracket 82 attached, their cross section is shown here in a circle, but can also be oval or polygonal in shape - if necessary also longitudinally cranked.

Near the partially circular bowed arch 83 of the metal bracket 82 are on one of those welding studs 86 parallel spring pin 88 - each from a longitudinal leg 84 bent out - two stop ribs running at an angle w to each other 90 intended. Between their ribs 91 and that ironing board 83 can be a plunger 93 from a block-like base body that is rounded at the front 94 and two of them towering - by means of a molded-on intermediate bridge 95 connected - disc sections 96 be inserted. Their center distance n corresponds to the distance f of the hole center lines M of the floor rail 26 _a , the circumference of the disc sections 96 is matched to the shape of the hole contour of the floor rail 26 _a ,

In the bottom of the base body 94 is a groove in the middle 97 for the spring pin mentioned 88 formed. The plunger 93 penetrates in the cross-sectional axis Q of the receiving groove 97 a grub screw 100 , In a lower position of the plunger 93 is the bottom of the groove 98 the receiving groove 97 the dowel pin 88 on, and the disc sections 96 run within the longitudinal legs 84 , ie below the top edge 81 of the slide 80 , The set screw runs during the described screwing process 100 on the roll pin 88 on, the plunger 93 raised, and in the process those disc sections 9b into the holes 40 your floor track 26 _a pressed. Is the slide in this 80 tense, it sits rattled. The seat adjustment is without a lever on the vehicle seat 10 possible.

Claims (11)

Device for anchoring a seat ( 10 ) on a vehicle floor with a rail which is fixed to the vehicle floor and extends in the longitudinal direction ( 26 ) which has a cross-section for slidingly guiding a sled-like insert element ( 50 ) trained undercut area ( 30 ) and a plurality of openings, preferably arranged at regular intervals ( 40 ) which cooperates with a locking element preventing movement of the seat placed on the slide in the longitudinal direction ( 66 ) are formed, characterized in that the insert element ( 50 ) from a plurality of swivel-articulated slide elements ( 48 . 58 ), which is designed to accommodate a torsional and / or transverse force acting on the rail about an axis defined by the longitudinal direction or transversely thereto, and thus in the rail ( 26 ) that the insert element can slide freely in the rail even when the rail is twisted. Device according to claim 1, characterized in that at least one of the slide elements is a sliding element ( 42 ) made of a plastic material that is suitable for sliding in the undercut area ( 30 ) the rail made of a metallic material ( 26 ) is trained. Device according to claim 1 or 2, characterized in that the slide-like insert element ( 50 ) as an elongated support arrangement with a pair of slide or connecting elements which are articulated at the ends ( 48 ) is trained. Device according to claim 2 and 3, characterized in that a connecting element ( 48 ) with the sliding element ( 42 ) is releasably connectable by means of a snap connection. Device according to claim 3, characterized in that a connecting element ( 48 ) for detachable connection with a holding element which is preferably attached directly to the seat ( 24 ) is designed, the holding element being at least one locking element ( 66 ) to intervene in one of the breakthroughs ( 40 ) and is designed such that in a connection state between the connection element ( 48 ) and holding element ( 24 ) the locking element ( 66 ) in the one breakthrough ( 40 ) engages non-positively in the longitudinal direction. Device according to one of claims 1 to 4, characterized by a pivotable on one of the slide elements ( 48 . 58 ) articulated locking element ( 62 ) against the force of an energy store ( 60 ) against the breakthroughs ( 40 ) preloaded and with a profile that engages in one of the openings ( 66 ) is provided which move the sled-like insert element ( 50 ) in the undercut area ( 30 ) prevented. Apparatus according to claim 6, characterized in that, based on a direction of travel (x) running parallel to the longitudinal direction, the profiling ( 66 ) of the locking element ( 62 ) in front of a joint ( 63 ) is arranged for the articulation of the same and is designed in such a way that the profile ( 66 ) with an additional force component running vertically to the direction of travel in the direction of the through breaks ( 40 ) can be acted upon. Device for anchoring a seat ( 10 ) on a vehicle floor with a rail which is fixedly connected to the vehicle floor and extends in a longitudinal direction ( 26 ) which has a cross-section for slidingly guiding a sled-like insert element ( 50 ) trained undercut area ( 30 ) and a plurality of openings, preferably arranged at regular intervals ( 40 ) which cooperates with a locking element connected in the longitudinal direction to move the seat placed on the slide ( 66 ) are formed, characterized in that the insert element or the slide ( 50 ) for detachable connection with a holding element which is preferably attached directly to the seat ( 24 ) is formed, the holding element being at least one locking element ( 66 ) to intervene in one of the breakthroughs ( 40 ) and is designed such that in a connection state between the carriage ( 50 ) and holding element ( 24 ) the locking element ( 66 ) in the one breakthrough ( 40 ) engages non-positively. Apparatus according to claim 8, characterized in that the holding element as an arm fixedly or pivotably connected to a lower seating area ( 24 ) is formed, on which the locking element ( 66 ) is provided. Apparatus according to claim 8 or 9, characterized in that the locking element as at least one knob or bolt ( 66 ) is realized and designed so that it can absorb a force generated in the event of a vehicle impact by the seat, which is preferably formed for a plurality of people, in a direction of travel (x) running parallel to the longitudinal direction. Use of the device according to one of claims 1 to 10 for detachable, sliding attachment of benches in an interior of a motor vehicle.