The seat consists essentially of a seat frame and a back rest frame, which are screwed to each other by way of plates which are welded thereto. The seat frame and back rest frame each consist of a curved sectional member, whereof the ends are constructed as skid-type feet. The seat frame and back rest frame are each strengthened by a transverse reinforcement and, when the surface of the seat or back rest includes a lattice, is welded to the frame, when the surface of the seat or back rest includes a plastic shell, it is attached to the frame by clamping.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The invention relates to a seat having a seat frame with a seat part and a 
back rest frame with a back rest part. 
2. Description of the Prior Art 
Seats of this type are provided for distribution in parks, gardens, waiting 
rooms, and similar places. In according with this use, the seats must have 
a very stable construction and must also be weather-resistant. Therefore, 
a known seat of this type consists of two stable, closed, steel tubular 
frames, which form a seat frame and a back rest frame, and to which a 
lattice material is welded to serve as the seat surface or back rest. In a 
side view, the two frames are constructed with an approximate C-shape and 
at the opposing vertical frame parts are welded to one another by means of 
four cross-pieces. 
A disadvantage with these known seats is that they project for quite a long 
way and are therefore also bulky, so that difficulties frequently arise, 
particularly regarding transportation and storage of these seats. They are 
also cost-intensive as a result of the spatial dimensions. 
An object of the present invention therefore is to construct a seat of the 
abovementioned type so that it can be conveyed and stored in a manner 
which is as space-saving as possible.

DESCRIPTION OF THE PREFERRED EMBODIMENTS 
Referring now to the drawings in detail, the seat illustrated in the 
drawings is a bench, on which several people can be seated side by side. 
The bench consists essentially of a seat frame 1 and a back rest frame 2, 
which are screwed or bolted to each other by means of plates or pieces 4. 
In this embodiment, the two frame parts 1 and 2 each consist of a tube or 
pipe, which is bent to form a side frame 1 having two legs 1b, 2b, whereof 
the free ends 1c, 2c are arranged at a distance apart from one another. As 
illustrated in the front view according to FIG. 1, the side frame which 
forms the seat frame 1 has a front transverse tube 1a, which extends over 
the entire length of the bench. At its ends, the side frame is bent back 
through 90.degree. so that the free legs 1b' extend approximately 
horizontally towards the back rest frame 2. Shortly before the free legs 
1b' reach the back rest frame 2, the latter are bent approximately 
vertically downwards and extend virtually to the floor, where they are 
bent forwards through approximately 90.degree., so that the free ends 1c 
of the side-frame form runner- or skid-like feet extending parallel to the 
surface on which the seat stands. Provided on the approximately vertical 
parts of the legs 1b of the seat frame 1 which extend towards the ground 
are two plates 4 arranged at a distance one above the other. These plates 
4 overlap counter-plates 4a, which are provided on the back rest frame 2, 
and are screwed to the latter. 
The back rest frame 2 likewise consists of a tube, which is bent to form a 
side-frame. The back rest frame or side-frame 2 has an upper transverse 
tube 2a, which likewise extends over the entire length of the bench and 
which closes off the back rest at the top (FIG. 1). At the sides, the 
transverse tube 2a is bent through approximately 90.degree., with the legs 
2b' extending in a straight line downwards and towards the front. At 
approximately the height of the front transverse tube 1a, the legs 2b of 
the back rest frame 2 are bent slightly forward and from there, they 
extend vertically downwards almost to the ground, where they are bent 
rearward through a 90.degree. angle. The free ends 2c of the back rest 
frame 2 thereby form skid-like feet 2c, which are directed rearwardly and 
extend parallel to the surface on which the seat stands (FIG. 2). In order 
to ensure that the seat stands securely and to prevent the bench from 
tilting backwards, the free ends 2c extend beyond the plumb line of the 
upper transverse tube 2a. The counter-plates 4a are welded to the vertical 
parts of the legs 2b. The counter-plates 4a are located at the same height 
as the opposing plates 4. 
As shown in FIGS. 1 to 3, a cross-member 10 or 11, respectively, is 
provided both in the seat frame 1 and in the back rest frame 2. This 
member 10 or 11 extends over the entire length of the seat between the 
legs 1b, 2b and serves to strengthen the frames 1 and 2. The cross-members 
10 and 11 likewise consist of a tube or pipe, and are welded at their ends 
to the seat frame 1 and back rest frame 2. The cross-members also serve to 
connect the legs 1b, 2b. The diameter of the cross-members 10 and 11 may 
be smaller than that of the side-frames 1 and 2. The cross-member 10 is 
located approximately where the leg 1b' of the side frame 1, which is 
directed rearwardly, passes into a part which is bent downwardly. This is 
particularly advantageous since, as a result of this, the rear side of the 
seat part 3 has an additional support. The seat part 3, which in this 
embodiment is constructed as lattice work, rests at its front side on the 
cross member 1a, at the two narrow sides on the legs 1b' which are 
directed rearwardly. At its rear side, the seat part 3 rests on the 
cross-member 10 and is welded on all four sides. The cross-member 11 is 
welded between the legs 2b of the back rest frame 2 at the point where the 
part of the legs 2b' which is directed forward and downward passes into 
the part 2b which is directed vertically downwardly. The cross-members 11 
form the lower boundary of the back rest part 5. As illustrated on the 
left in FIG. 1, a lattice structure is provided as the back rest part 5, 
and is welded to the cross member 2a, the parts of the sides or legs 2b' 
being directed forward and downward and to the cross-member 11. The 
welding of the lattice work 3, 5 to the tubes 1, 2, 10, 11 can be carried 
out in a particularly economical manner by resistance spot welding; the 
stability of the frames 1 and 2 is additionally increased by this. In 
place of the seat or back rest parts 3 and 5 which are constructed as a 
lattice, plastic shells 5', or other plastic surfaces can be used. These 
are preferably anchored to the frame by a simple clamping procedure, as 
illustrated, for example, in FIG. 1 on the top right (see back rest part 
5'). 
In the embodiment which is shown in FIG. 2, the seat surface 3 is inclined 
slightly rearwards, and the back rest 5 is inclined rearwards somewhat 
more. This arrangement allows a particularly relaxed sitting and has 
proved to be extraordinarily comfortable. Preferably, the seat surface is 
tilted rearwards by approximately 8.degree., whereas the back rest 
encloses an angle of approximately 23.degree. with the vertical. This 
results in an angle of 115.degree., which is formed or enclosed by the 
seat surface and back rest. 
The tubes used in this embodiment for the seat frame 1 and back rest frame 
2 have a diameter of approximately 40 mm, in which case the radii of 
bending of the tubes amount to approximately 80 mm. As a result of this, a 
very solid and torsion-resistant construction is advantageously obtained. 
In addition, the relatively strong tubes, in particular the front 
cross-tube 1a, ensures that even people with relatively short legs may sit 
comfortably, without the cross-tube 1a cutting into the bend of the knee 
or pressing against it uncomfortably. Even in the region of the feet 1c, 
2c, a relatively large tube diameter is advantageous, since this results 
in an increase of the support surface of the bench. This is a particular 
advantage when placing the seat on lawns or similar areas, since the feet 
are prevented from sinking into the ground or support area. 
In this embodiment, seat frames 1 and back rest frames 2 are each provided 
with four plates 4, 4a, which are made from flat material. The plates 4, 
4a have an approximately square shape in side view (see FIG. 2) and 
overlap each other almost completely. The plates are each welded at one 
side with a single fillet-weld to the side-frame 1 or 2. Butt welding on 
only one side respectively is very advantageous, since as a result of this 
the length of overlap of the plates 4, 4a and thus the stability of the 
bench is increased. At the same time, one welding operation is dispensed 
with due to this. As shown in the sectional view according to FIG. 4, the 
plate 4 and counter-plate 4a each have a bore, which are in alignment with 
each other and through which a bolt 6 is guided. Seated at the end of the 
bolt 6 is a nut 8, by means of which the plate 4 and counter-plate 4a are 
braced with respect to each other. The screw connection is secured in a 
known manner against accidental release by means of washers 7 (or 
retaining rings or self-locking nuts). As shown in FIG. 3 and 4, the head 
of the bolt and nut 8 are very easily accessible, so that the bench can be 
dismantled or assembled within the shortest possible time. The dismantled 
bench, which consists of the seat frame 1 and back rest frame 2, can be 
conveyed and stored in an essentially space-saving manner. When storing or 
transporting several benches, the seat frames 1 and back rest frames 2 may 
very advantageously be stacked one within the other, so that only a 
relatively small space is required. 
The screw connection between the plates 4 and counter-plates 4a is 
particularly favorable in this case since this allows their assembly or 
dismantling to be accomplished in the shortest possible time, by unskilled 
persons, and without special tools being required. 
The aforedescribed bench has a particularly stable position, since the free 
ends 1c, 2c jut out a relatively long distance. In particular, this 
prevents the bench from tilting rearwards and forwards. In order to avoid 
corrosion, all parts, with the exception of the bolt 6, are covered with a 
plastic coating or lacquer, and the ends of the tubes are provided with 
plastic caps. 
According to a further embodiment, the bench may also be assembled in a 
stationary manner, in that the vertical parts of the legs 1b, 2b are 
guided into a foundation which is provided in the ground. In this case the 
feet 1c and 2c that are constructed as skids can be dispensed with. 
Depending on the thickness of the tubes 1 and 2, it may be adequate to 
anchor only the tubes of the seat frame 1 or of the back rest frame 2 in 
the foundations. With a construction of this type, the non-supporting 
parts of the legs 1b, 2b terminate below the lower plates 4, 4a. In this 
case the bench can thus either be concreted securely in place in a known 
manner or guided by means of a sleeve or casing in a removable manner. 
According to the present invention, the seat described by means of these 
embodiments may also be constructed as a chair, i.e. seating one person, 
as a bench capable of seating several persons, or as a curved bench 
composed of segments, as is usual in seats of this type. If the seat has a 
short length, for example, as a seat for one person or as a corner unit, 
it is possible to dispense with the cross members 10, 11. In the case of 
benches, which are composed of several segments, plates may also be 
provided laterally on the vertical parts of the legs 1b, 2b, by means of 
which the adjacent segments may be connected. The aforedescribed 
construction of the frame parts 1 and 2 from circular tubes is very 
advantageous, but not absolutely necessary. A construction using other 
forms or sectional members is possible. 
The seat is very strong, hard-wearing, and is largely immune to the effects 
of weather in the aforedescribed constructions. Assembly or dismantling is 
carried out in a short time using only four bolts, so that when the seat 
is not in use, for example in winter, it is possible to dismantle the seat 
frame and back rest frame and to stack them individually. This results in 
the savings of a storage space. Also handling, particularly in the case of 
large benches, is considerably facilitated. 
It should also be mentioned that the seat frame 1 is a self-supporting 
construction, which if necessary may also be set up without the back rest 
part. 
The present invention is, of course, in no way restricted to the specific 
disclosure of the specification and drawings, but also encompasses any 
modifications within the scope of the appended claims.