DE1896880U - VEHICLE SEAT WITH SUSPENSION AND DAMPING. - Google Patents

Description

P.A.137 "? * 2U.6ii

Dr.-lng. G ^ Eichenberg ^ ^ _ _{21- pebruary 1g64} Dipl.-lng. H. Sauerland

Patent attorneys

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Deutsche Bank AG., Düsseldorf branch

Postal check account: Essen 8734

Telephone number 432732

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Il / ö

Bremshey & Oo ,, Solingen-Ohligs, Ahrstraße 5-7 "Vehicle seat with suspension and damping"

The invention relates to a vehicle seat with suspension and damping and adjustability of the Height of the unloaded seat support, which is guided straight through a handlebar parallelogram, with the spring between a fixed and a movable Y / iderlager is clamped. It is based on the task of creating a seat of this type to design so that the seat frame with all associated parts below the seat support in as little space as possible Claims that the seat can also be installed in vehicles where space is limited »

To solve this problem, different approaches have been taken, but always the Hachteil in Buy had to take that the forces of the spring and the damper via a relatively large number of intermediate links acted on the seat support, with the consequence of considerable friction, through which the dynamic properties

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. a vehicle seat "

of the damped spring-mass system that is involved such sitting will be worsened. In contrast, the invention seeks and achieves a seat low overall height, which is free from these functional disadvantages-r

According to the invention, the fixed abutment of the spring is on the lower G-elenkach.se of the rear link and the movable abutment in the form of a lever arm on the lower pivot axis of the front link rotatable and the front handlebar on the lever arm with adjustable Y / angular spacing supported «This creates the space that the components required for cushioning require in terms of height take, minimal, and the same goes for the damping if the damper, as is the preferred embodiment of the Invention corresponds, is arranged in the same Y / eise, namely such that it is between the lower G-joint axis of the rear link and the lever arm, so extends parallel to the spring. It is particularly useful to apply the spring force to two parallel to each other to distribute arranged springs, between which the damper is arranged. Because this will be completely symmetrical Maintain force relationships. Between the force generators, i.e. the spring and the damper, and the seat support are in all this only two components are switched on, namely the

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a vehicle seat "

Arm and the front handlebar, but mechanically like one only part work. As a result, the dynamic properties are only slightly influenced by friction.

To adjust the angular distance between the lever arm and the front link is used in the preferred Embodiment of the invention a threaded spindle that is shown in a nut thread of the handlebar is rotatable. Such a spindle has the advantage of great structural simplicity, in addition, however, the disadvantage that it can only be rotated with fairly considerable effort. This Hachteil is solved according to the invention in that the spindle with actuation by a hand lever via a Ratchet is provided. Since the hand lever then does not need to be fully rotatable, it can be a considerable one Maintained length so that the force to be exerted on it by hand is reduced to a fraction of what without Actuation via a ratchet would be necessary to force. In a further embodiment of the invention, the spindle is then arranged with their drive in the region of the front edge of the seat cushion mounted on the seat support, so that it is easily accessible to the hand of the seated person when the seat height is to be adjusted.

The drawing illustrates an embodiment

_v cu-u February 21, 1964 "With suspension and damping, 4

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a vehicle seat "

example. Show it

Fig. 1 is a view of a seat designed according to the invention tone of the side,

Fig. 2 is a plan view of the seat frame "with the cushions and upholstery frame removed and

3 is an enlarged, partially sectioned side view of the frame, omitting the upper structure.

The drawn seat "consists of FIG. 1 and a tubular frame 1 on which a seat cushion 2 and a angle-adjustable back pad 3 is attached in the usual Yifeise. The tubular frame 1 rests on two rails of angle profile that form the seat support. On this Rails, the frame 1 is displaceable in the longitudinal direction and can be locked in a number of positions. To the festival » ment are notches 5 in the one rail 4. The two rails 4 are by a cross strut 6 to a unit tied together. They are carried by a handlebar parallelogram and are on the handlebars 7 and 8 by axles and pins 9 and 10 articulated. The handlebars 7 and 8, each of which is formed by a tubular frame, are on the base plate 11 in eyes 12 and 13 with axes and 15 pivotally mounted.

A crosshead 16, which the fixed resistance

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"bearing of the leather" is rotatable on the axis 14 stored. Two helical springs 17 arranged parallel to one another are supported on it, between which a damper 18 is arranged, which is also supported on the crosshead 16 «This damper can be from a shock absorber Conventional design are formed, as it is used in motor vehicles. The two springs 17 and the Damper 18 are supported according to FIG. 3 at the opposite end on a further crosshead 19, which is the movable Forms abutment of the suspension, so it is displaceable relative to the crosshead 16 in the direction of the spring axis. The crosshead 19 has an eye 20 by means of which it is articulated to a lever arm 21, the fixed pivot point of which coincides with the axis 15.

The tubular frame forming the front link 8 is provided at the front with a cap-like head 22 on which a nut 24 is rigidly attached. In this nut a spindle 25 is rotatable, which rests on the lever arm 21 and so that a non-positive connection between the handlebar and the crosshead 19 is established. The spindle 25 is on her Head provided with a ratchet 26, which carries a hand lever »The ratchet is in a known manner on the one or other direction of rotation switchable, so that an oscillating movement of the spindle 25 imparted to the lever, depending on the switching

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hener vehicle seat "

rotation is granted either in one sense or in another. Such ratchets can be found, for example with commercially available Y / a jacks.

The weight of the seat support 4 with the load resting on it is by means of the upper link 8 and the The spindle 25 is supported on the lever arm 21 and is moved by this lever arm onto the crosshead 19 and thus onto the springs 17 and transmit the shock absorber 18 * The power transmission therefore takes place without significant deflection and via a few Friction-generating components

To set the desired seat height, the person occupying the seat grips the front edge 28 of the Seat cushion 2 over down, grips the lever 27 and pivots it in one sense or another without significant Effort until the desired state is achieved.

Claims (5)

RÄ. 131437 * 2 ^ .2.64 For writing of the 21st <1 $ Μ.ύ.3..§Α αη '.' Μΐίί .l ".e..d..er.ung ... and attenuation ... .versehe-BIatt 7 ..., ner vehicle seat "Bremshey & Go., Solingen-Ohligs, Ahrstrasse 5-7 protection claims; 1. Vehicle seat with suspension and damping as well as adjustability the height of the unloaded seat support, which is guided straight through a handlebar parallelogram, where the leather between a fixed and a movable Yifiderlager is clamped, characterized in that the fixed abutment (16) on the lower G-joint axis (14) of the rear link (7) is rotatably mounted and the movable abutment (19) on a lever arm (21) is supported, which is rotatable on the lower G-elenkachse (15) of the front link (8), the front link (8) is supported on the lever arm (21) with an adjustable angular distance » 2. The vehicle seat according to claim 1, characterized in that a damper (18) parallel to the spring (17) is arranged between their abutments (16) and (19), 3. The vehicle seat according to claim 2, characterized in that the spring consists of two parallel to each other arranged individual springs (17) consists, ζτ / ischen which the damper (18) is located. For writing from ... 2.1 ... I.eb.r .... 19.64 _to ". With suspension and damping ungvershe- _B , _Qtt 8 a vehicle seat " 4. Vehicle seat according to one of claims 1 "to 3, characterized in that for adjustment the angular distance between the lever arm (21) and the front handlebar (8) has a threaded spindle (25) rotatable in a nut thread of the handlebar with actuation is provided by a hand lever (27) via an Eatsche (26). 5. The vehicle seat according to claim A, characterized in that the spindle (25) with its drive (26,27) in the region of the front edge (28) of the seat cushion (2) attached to the seat support (4) is arranged so that it is accessible to the hand of the seated person.