DE2609038A1 - LOTALLY ADJUSTABLE HOLDER FOR VEHICLE SEATS - Google Patents

Description

Radt, Finkener, Ernesti

Patent attorneys
Heinrich-Koenig-Str. 12th

4630 Bochum

SOCIBIB INDUSOIRIELIE BERTRAKD DRIVE 0062 76 B

Vertically adjustable holder for vehicle seats.

The invention relates to the holder of vehicle seats, the inclination and height of which can be regulated vertically, this holder being a first rigid, firmly mibdem floor of the vehicle have connected frame, a second rigid frame and locking means firmly connected to the seat surface of the seat, which can easily be operated by the seated person to alternate between the vertical displacements of the front! part of the first frame opposite the second frame alone or to allow the vertical displacements of the rear part of the first frame relative to the second alone.

Such holders are e.g. in the French patent specifications of the applicant No. 71 36 038 of October 6, 1971 and No. 73 4-3 463 dated December 5, 1973.

In these patents, the holder included both of them above frames a third intermediate frame for connection, which generally occupies an inclined position and by two horizontal axes can be pivoted, one of which with the front part of one of the above two frames and the other with the rear part of the other of these two first frames is connected.

These designs work quite satisfactorily, but the invention proposes a new training which is even more advantageous in that it eliminates the

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third intermediate frame permitted.

The holder according to the invention is essential because of this characterized that of its two frames the one two smooth vertical, in a constant horizontal mutual Spaced guides and the other has a rigid intermediate piece, which has two opposite rounded Areas of generally perpendicular position, which have a common horizontal axis and in contact with the both guides cooperate, and that on the other hand of these two frames also the one two perpendicular, opposite one another Toothed racks and the other two tooth sectors, which extend on circular arcs, the center of which lies on this common axis, and which each with a of the two racks cooperate, means being provided are which these two tooth rods or these two tooth sectors at a constant mutual horizontal distance hold, and the actuating means are designed so that they alternate in the horizontal direction of each tooth sector clear the corresponding rack, or vice versa.

Preferred embodiments of the invention may also incorporate one and / or the other of the following features exhibit:

- Has only one of the two frames

at the same time the smooth vertical guides and the vertical ones Rack j

- the racks are fixed to a frame

connected while the tooth sectors slide on the other frame are movable;

the toothed sectors are firmly connected to one frame, while the toothed racks slide on the other frame are movable;

- The rigid intermediate piece is formed by a pipe section with a relatively large diameter, the Axis the common axis is $

- the rigid intermediate piece has two end stops which interact with two contact surfaces of the frame, with which this intermediate piece is not permanently rigidly connected is, where each stop ia des? same distance from of the common axis like the teeth of the toothed parts

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in their position of mutual engagement and in the middle the height of these teeth is arranged;

- the various gears are made up of straight gears, i.e. formed with parallel planks.

The invention is explained below with reference to the drawing by way of example.

Fig. 1f 2 and J> show in a vertical section along the line II of the Pig. 2 with parts broken away or in plan view with parts broken away or in a vertical section along the line IH-III of Pig. 1 one half of a holder according to the invention for a seat.

Fig. 4 shows one possible form of the toothing of the toothed parts of this holder.

Fig. 5 shows a side view of an inventive Modification of part of the holder.

Fig. 6 shows a side view with parts broken away another embodiment modification of one half of a Holder according to the invention for a seat.

7 and 8 show in side view and in

Plan view of yet another embodiment modification of one half of a holder according to the invention for a seat.

Fig. 9 shows a side view of a seat equipped with this latter holder.

The first holder considered consists of two assemblies extending lengthways on each side of the seat extend under the seat surface of the seat. Each assembly includes a first rigid angle iron 1 with a perpendicular Leg 2 and a lower horizontal leg 31 which, possibly via a slide rail for advancing and retracting the seat, is firmly attached to the floor 4 of the vehicle can be connected, and a second rigid angle iron 5 with a vertical leg 6 and an upper horizontal Leg 7, which is firmly connected to the seat of the seat can be"

The two edges 8, which limit the two horizontal ends of the leg 2, which below with the The term "intermediate piece" is denoted, have general shapes that are rounded according to two circular arcs with the diameter D, which have the same horizontal axis A-A, which is defined by the

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Intermediate piece 2 occurs approximately in its geometric center.

The other perpendicular leg 6, parallel to the intermediate piece 2, has two end guides at its horizontal ends. whose vertical bottoms 9 are smooth and straight, have the mutual distance D and so in contact with the Above edges 8 can accommodate so that the intermediate piece 2 and thus the angle iron 2 is exactly horizontal with respect to the angle iron 5, but perpendicular mutual "rolling movements" of one angle iron on the other possible are.

The guides 9 can be done in a very simple manner

by riveting (at 12) two plates 10 and 11 to the leg 6 are formed, the bottom 9 of each guide being formed by a vertical edge of a plate 10 and the Plates 11 protrude slightly over the plates 10, so that the horizontal Enclosure of the intermediate piece is completed.

The leg 6 also carries one at each horizontal end between it and the plate 10 through the rivet clamped vertical rack 13 'whose teeth 14 face the direction of the axis A-A.

The intermediate piece 2 in turn carries two bolts 15, which are horizontally slidable on it.

The horizontal guidance of the sliding movements of the bolt is carried out by webs pushed out of the intermediate piece 16.

This bolt 15 carries a toothing I7 _f which can interact with the toothing 14 of a rack 13 and is curved according to an arc, the center of which lies on the axis AA when it is in engagement with the rack

An actuating mechanism allows the two latches 15 to be pulled out of their racks alternately but not at the same time against the return force of springs 18.

This actuation mechanism here includes one (not shown) handle which is pivotable about a horizontal axis 19 with a prismatic cross-section. This wave occurs in bearing-forming perforated disks 20 through the two legs 2 and 6 of each of the two arrangements forming the holder.

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This wave is in everyone's place

these two arrangements are non-rotatably connected to a hook 21 with two legs.

In the embodiment shown in Fig. 1, each spring 18 is an elastic metal wire with an in the inside of the hook 21 is bent over extension 22, one inserted into a complementary groove of the corresponding bolt 15 Fastening loop 23 and an elastically curved end 24, which is against a through a crack in the intermediate piece 2 formed humps 25 sets. The relaxation of this end is what gives the latch the desired elastic return force exercises.

In this embodiment practice for one Direction of rotation of the operating handle and thus of the hook 21 Leg of this hook a train on the extension 22 of a spring 18, while on the extension of the other spring 18 none Force is exerted. The reverse is the case for the other direction of rotation of the handle.

In certain known embodiments, each rear rack 13 of the seat is arranged so that its Toothing lies approximately in the vertical transverse plane of the seat, which is the center of gravity of the height-adjustable Part of this seat and arrangement formed by the user sitting on the seat, and it is below at this point The seat is provided with a strong (not shown) compensating spring to prevent the seat from sinking in when the rear seat is pulled out Prevent latch.

The above device operates as follows.

The rest position brings relaxation

of the two springs 18 of each assembly, the two latches 15 of the same in their rest position, i.e. in engagement with the racks 13, and the operating handle in its neutral central position.

If the user of the seat is the rear

Desires to lift part of it, he twists the handle in that Sense in which the rear latches are pulled out of their racks, releasing them in a vertical direction will.

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The user can then, with the support of the compensating spring, the rear part of the angle iron 5 as well let the seat supported by these rise upwards.

This shift is caused by 'the double mutual' rolling movement ' ^{1 of} the front ends of the two angle irons 1 and 5 of each arrangement on each other at the point of the rounded front edge 8 of the intermediate piece 2 on the bottom 9 of the associated guide and the rounded toothing of the front bolt 15 allows on the corresponding rack.

Once the desired height for the rear of the seat is reached, the user only needs the handle release to lock the seat in place.

An actuation of the handle in the previous one The opposite sense allows the front end of the seat to be released in the vertical direction and thus correcting the height of this end by tilting the entire seat around its rear. This maneuver permitted not only correcting the height of the front part of the seat, but also the inclination of its seat.

The maneuvers can of course be repeated alternately until the desired height and inclination have been achieved for the seat will.

There are end stops to limit the vertical strokes of the two horizontal ends of the angle iron 5 opposite those of the angle iron 1 provided.

These stops have here the form of pins 26 which are firmly connected to the intermediate piece 2 and with Approaches 27 of the plates 11 can interact.

These pins 26 are halfway up the intermediate piece 2 at the same distance from the axis A-A as the middle circle of the meshing teeth is provided so that they do not cause the mutual "rolling movements" of the affect both angle irons 1 and 5 if only one of the two pins is in its end position.

In order to prevent the toothing from disengaging against the return force of the springs 18, it is particularly useful to give your teeth "gsraÄe" shapes, ie with parallel flanks, έ ± ® shown in FIG.

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In certain cases it is useful that

the mutual engagement of the gears is inevitably maintained will.

This is the case in the embodiment shown in FIG. 5, in which the actuation of the sliding movements of each bolt 15 by rotating a cam 28 takes place, which is connected to one of the intermediate piece 2 Axis is rotatable and cooperate with a counter-cam 29 formed by the edge of an opening recessed in the bolt can.

This cam and this counter cam can

be formed in any desired manner. When shown A preferred embodiment is that described in French Patent No. 71 36 038 mentioned above and illustrated manner, in which case they both have rounded areas which cooperate with one another in this way can cause a clamping effect.

The cam 28, which a spring (not shown) normally brings into its locking position seeks, is firmly connected to an arm 30, on which horizontally an end hook 31 of a rod 32 can pull which, in turn, is attached to the end of a rod that is fixedly connected to the shaft 19 Crank 33 is hooked with a middle vertical position.

The bars corresponding to the two bars

32 can pass through the two halves of one and the same metal wire section be formed, which has a central loop 34 wrapped around a pin 35 attached to the crank 33.

In the above two embodiments occurs the shaft 19 through the two legs 2 and 6, resulting in the production of a relatively large opening 36 in the leg 6 requires.

This disadvantage is avoided in the embodiment modification of FIG. 6 in that the fixed and the sliding Installation of the tooth sectors and the racks is reversed.

In this variant embodiment, the above sliding latches 15 are firmly attached to the intermediate piece 2 (or the leg 6) connected tooth sectors 37 and the above racks 13 replaced by bolts 38, which have a straight Have perpendicular teeth and horizontally along the leg

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(or of the intermediate piece 2) can slide,? / whether they move from remove the sectors 37 after externaling the device.

In the rest position, i.e. when the various toothings are in engagement with one another, the arrangement is exactly identical to the previous one.

The unlocking is done by horizontal Sliding movements of the latches 38 towards the exterior of the mechanism and no longer by horizontal sliding movements of the bolt 15 towards the center of the mechanism, as before.

In addition, the sliding movements of the two bolts J8 are controlled by two separate handles arranged on the front and rear of the mechanism. Ji ¹ Ur these sliding motions are advantageously used the rotations of the dock 28 · 5 type explained with reference to FIG above.

Apart from these differences, the operation of the mechanism shown in Pig · 6 is precise with identical to that of the previous mechanisms

Ih another, shown in Pig * 7 "through 9 The basic design of the holder is a modification of the design again identical to the previous one.

In this variant embodiment, the angle iron 1 has a vertical leg 2 with rounded edges 8 through a pipe section 39 with a relatively large Diameter replaced.

As above, the two vertical planks of this section 39 slide along two vertical planks 40, which are kept at a constant mutual distance from each other.

The section 39 also carries two bolts 41 which are horizontally slidable and circular Toothings 42, which are connected to the opposing toothings 43 of two fixedly connected to the flaps 40 perpendicular Racks 44 can work together. The center of the circular teeth 42 lies on the axis of the section 39 when they are in mesh with the racks.

An operating handle 45 pivotable about this axis has openings in the form of deformed beans 46, which can cooperate with attached to the bolts 41 pins 47 that the rotations of the handle 45 in the two directions

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the horizontal shift from its middle position of rest only one of the two bolts 41 in the direction of the axis of the section 39 or the horizontal shift only the other bolt in the direction of this axis result.

Finally, limit stops 48 and 49 limit the displacements of the movable ones connected to section 39 Arrangement on the one hand with regard to the inclination and on the other hand with regard to the height compared to the one with the splash 40 provided base of the seat.

Your pig. 9 you can see another at section 39 welded frame 50, on which the frame 51 of the seat 52 of the seat 53 is attached.

This holder has numerous advantages over those previously known, in particular with regard to lightness and the simplicity of manufacture, which in particular depends on the port case of the "inclined" intermediate frames of the previously known Remarks originate.

The invention can of course be modified. So the interlocking teeth of the bolt and the racks different from the profiles explained above Have profiles and, for example, be simple notch arrangements, which are based on the assumption of an inevitable blocking the transom consist of notches with a triangular profile.

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Claims (1)

- 10 - 0062 76 B PATENT CLAIMS Λ / In the vertical direction with respect to the inclination and the height adjustable holder for vehicle seats with a first rigid frame that can be securely connected to the floor of the vehicle, a second rigid frame that can be securely connected to the seat of the seat and can be easily operated by the seated person Locking means which alternately make possible either the vertical displacements of the sole front part of the first frame relative to the second or the vertical displacements of the sole rear part of the first frame relative to the second, characterized in that on the one hand of its two frames one (5) two vertical smooth guides (9) _f which are held at a constant mutual horizontal distance, and the other (1) has a rigid intermediate piece (2) with two opposing rounded areas (8) of a generally perpendicular position, which has a common horizontal axis ( AA) have and unt he can interact in contact with the two guides, and that on the other hand of these two frames also one has two perpendicular, opposing toothed racks (13) and the other two toothed sectors (15) which extend on circular arcs, the center of which is on the common axis and which can each cooperate with one of the two racks, means are provided to maintain a horizontal constant mutual spacing of the two racks or the two tooth sectors, the actuating means being designed so that alternately each tooth sector is pulled horizontally out of the corresponding rack can be or vice versa. 2. Holder for vehicle seats according to claim 1, characterized in that the smooth vertical guides (9) and the vertical racks (.13) are all four supported by a single frame. 3. Holder for vehicle seats according to claim 1 or 2, characterized in that the toothed racks (13) are firmly connected to one of the frames, d _s while the toothed sectors (15) are slidingly verscMelslisli with the other frame (Figs. 1 to 3 and 5 ) · 609839/0320 - 11 - 0062 76 B 4-. Holder for vehicle seats according to claim 1 or 2, characterized in that the toothed sectors (15) are firmly connected to one of the frames, while the toothed racks (13) are slidable on the other frame 5 · Holder for vehicle seats according to one of the Claims 1 to 3i, characterized in that the rigid intermediate piece is formed by a pipe section (39) with a relatively large diameter, the axis of which is the common Axis is. 6 · Holder for vehicle seats according to one of the Claims 1 to 5t, characterized in that the rigid intermediate piece carries two end stops (26) which interact with two contact surfaces (27) of the frame with which the Intermediate piece is not permanently rigidly connected, each of these stops at the same distance from the common Axis is arranged as the teeth of the toothed parts in the position of their mutual engagement s, and in the middle the height of the same. 7. Holder for vehicle seats according to one of claims 1 to 6, characterized in that the different Toothings are formed by straight teeth, i.e. that they have parallel flanks (Fig. 4). 8. Holder for vehicle seats according to one of claims 1 to 7, characterized in that the slidably displaceable Toothed parts are inevitably brought into their engagement position with the aid of rotatable cams (28, 29). b0983ü / Q320 Blank page