SEAT FOR PUBLIC TRANSPORT VEHICLE

Abstract: The invention concerns a seat for public transport vehicle, applicable for buses, trams, trains. A seat for public transport vehicle having the supporting structure of the seat made of pipes or being a shaped monoblock together with the casing element, characterized in that the supporting structure of the back-rest (2) in its top portion is temporarily connected to the top shaped element (6) by means of connectors.

Description: Seat for public transport vehicle The invention concerns a seat for public transport vehicle, applicable for buses, trams, trains. A buyer ordering seats for vehicles stated requirements relating to the shape of a seat, taking into account the tradition of a firm, aesthetic, ergonomic and other features. Fulfilling these requirements a producer had to adapt every time the construction of a back-rest frame for above mentioned requirements. So he made a small lot, expensive production. Unexpectedly it appeared that most of above mentioned requirements relate to the top portion of a seat back-rest with maintained unchanged basic back-rest construction. Therefore a solution is presented to eliminate hitherto faults and inconveniences. The essence of the invention, relating to a seat for public transport vehicle, having a supporting structure of the back-rest made of pipes or being together with the casing a monoblock shape, consists in that the supporting structure in its top portion is temporarily connected to the top shaped element by means of connectors. It is advantageous when the connectors are guides situated in the supporting structure and pilots situated in the top element. It is also advantageous when the top element has side connectors for fastening to the side planes of the supporting structure of the seat. It is especially advantageous when a handle is temporarily fastened to the top element. Owing to use of the seat according to the invention, the following technical and useful effects were obtained: possibility of unification of supporting structures of the seat for all types of vehicles, possibility of adaptation of the top element as an individualized part as to shape, type and aesthetic requirements for a particular kind of vehicle, possibility of connecting a handle to the top element, reduction of the production costs through unification of production process of the basic supporting structure, possibility of a fast change of the seat shape through replacement of the top element, easy assembly and disassembly of the top element and the handle. The invention will now be described by way of examples and with reference to the accompanying drawings in which: fig. 1 is a front view of the seat disassembled, fig. 2 is a side view of the seat in the second embodiment. The seat, in the first embodiment, is the pipe frame of a horizontal seat 1 connected together with the frame of a back-rest 2. A casing 3 is put onto the frame of the horizontal seat 1 and the frame of the back-rest 2. It has permanently situated guides 4 for mounting pilots 5 of a top element 6. In particular cases, the guides 4 are ends of the pipe frame structure of the horizontal seat 1 and the pilots 5 are suitably shaped ends of the pipe structure of the top element 6. At side areas the top element has connectors 7 for fastening to stiles 9 of the frame of the back-rest 2. The top element 6 has a lower profile corresponding to the upper profile of the back-rest 2. In the second embodiment, the seat has the supporting structure being a shaped monoblock together with the rear casing element 3. It has guides 4 shaped in the structure for mounting pilots 5 of the top element 6 being also a shaped monoblock together with the casing element 3. In the seat versions designed for fastening e.g. at bus passages, the top element 6 has a handle 8 in both embodiments. Depending on demands of buyers relating to the shape, connected with the industrial design, the top element 6 is mounted to basic elements universal for all types, by inserting the pilots 5 of the top element 6 into the guides 4 of the supporting structure of the back-rest 2. The connectors 7 are placed at the sides of the supporting structure of the back-rest 2. Then the pilots 5 are connected to the guides 4 and the connectors 7 are connected to the supporting structure of the back-rest 2 in a well- known way with screws not shown in the drawing. In other version of the seats, the handle 8 is fastened to the top element 6 in a well-known way. The shaped casings 3 are put onto such assembled elements of the seat, fastening them to connectors not shown in the drawing.

Claims: Patent claims 1. A seat for public transport vehicle having the supporting structure of the seat made of pipes or being a shaped monoblock together with the casing element, characterized in that the supporting structure of the back-rest (2) in its top portion is temporarily connected to the top shaped element (6) by means of connectors. 2. A seat as claimed in claim 1 , characterized in that the connectors are guides (4) situated in the supporting structure of the back-rest (2) and pilots (5) situated in the top element (6). 3. A seat as claimed in claim 1 , characterized in that the top element (6) has side connectors (7) for fastening to the side planes of the supporting structure of the seat (2). 4. A seat as claimed in claim 1 , characterized in that a handle (8) is temporarily fastened to the top element.

Inventors: SZYMANSKI MACIEJ, SZYMA&NACUTE
Applicants: SZYMANSKI MACIEJ, SZYMA&NACUTE
Application year: 2000
Main classification: B60N2
IPC codes: B60N2, B60N3