Vehicle seat, especially for commercial vehicles
First Claim
1. A seat for vehicles, especially for commercial vehicles, having seat supporting means and a cushion support, said seat being capable of swinging and comprising:
- a swinging frame including;
a base part formed as a lower frame and supported by said seat supporting means and having a front and a rear and including a pair of substantially parallel opposedly mounted lower girders forming lower side girders of the lower frame,an upper part supporting said cushion support, said upper part formed as an upper frame and having a front and a rear and including a pair of substantially parallel opposedly mounted upper girders forming upper side girders of the upper frame,two scissor-like crosshead devices, one provided at each respective side of said swinging frame, each having a pivot axis transverse to said upper and lower side girders, said crosshead devices disposed between said lower base part and said upper part, each of said crosshead devices comprising a higher carrying capacity member formed by a pair of rocking levers, each rocking lever of said pair arranged parallel and adjacent to each other, and a lower carrying capacity member formed by a single rocking lever disposed between and pivotally attached to said pair of rocking levers of said higher carrying capacity member, each of said rocking levers having an upper end and a lower end, said upper ends of all said rocker levers being pivotally connected to said upper girders and said lower ends of all said rocking levers being pivotally connected to said lower girders.
1 Assignment
0 Petitions
Accused Products
Abstract
A seat for vehicles, especially commercial vehicles, of which the cushion support is mounted on a swinging frame with two identically configured pairs of levers which intersect and pivot with each other, has on each side of the swinging frame at least one fastening point for a seat belt system. Pivot connections combined with a guide for each one running longitudinally along the seat connect the rear terminal segments of the rocking levers with the lower part and the upper part of the swinging frame. The rocking levers extending from the upper part of the swinging frame obliquely forward and downward are embodied with a diminished carrying capacity as compared with the other rocking levers.
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Citations
10 Claims
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1. A seat for vehicles, especially for commercial vehicles, having seat supporting means and a cushion support, said seat being capable of swinging and comprising:
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a swinging frame including; a base part formed as a lower frame and supported by said seat supporting means and having a front and a rear and including a pair of substantially parallel opposedly mounted lower girders forming lower side girders of the lower frame, an upper part supporting said cushion support, said upper part formed as an upper frame and having a front and a rear and including a pair of substantially parallel opposedly mounted upper girders forming upper side girders of the upper frame, two scissor-like crosshead devices, one provided at each respective side of said swinging frame, each having a pivot axis transverse to said upper and lower side girders, said crosshead devices disposed between said lower base part and said upper part, each of said crosshead devices comprising a higher carrying capacity member formed by a pair of rocking levers, each rocking lever of said pair arranged parallel and adjacent to each other, and a lower carrying capacity member formed by a single rocking lever disposed between and pivotally attached to said pair of rocking levers of said higher carrying capacity member, each of said rocking levers having an upper end and a lower end, said upper ends of all said rocker levers being pivotally connected to said upper girders and said lower ends of all said rocking levers being pivotally connected to said lower girders. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification