Headrest with adjustment mechanism

Abstract

Headrest ( 3 ) with adjustment mechanism, for motor vehicles, wherein an angular position of the headrest ( 3 ) relative to a backrest ( 1 ) of a seat ( 2 ), is adjustable. The headrest has two holding brackets ( 4 ) which are plugged into holding receptacles ( 20 ), the holding receptacles ( 20 ) being pivotable to change the angular position. The holding receptacles ( 20 ) are connected by a connecting body ( 19 ) having a cross-section corresponding at least to twice the diameter of a holding bracket ( 4 ), and are formed in the connecting body ( 19 ). The holding length ( 1 ) corresponds to no more than three times the diameter (d) of a holding bracket ( 4 ).

1 - 34 . (canceled)  
   
   
       35 . Headrest ( 3 ) with adjustment mechanism, for motor vehicles, including rear seat headrest, wherein an angular position of the headrest ( 3 ) relative to a backrest ( 1 ) of a motor vehicle seat ( 2 ), to which the headrest ( 3 ) is fitted, is adjustable and in which height adjustability is provided, the headrest comprising: two holding brackets ( 4 ) which are plugged over a holding length (l) into holding receptacles ( 20 ), the holding receptacles ( 20 ) furthermore being pivotable together about a pivot pin ( 18 ) in order to change the angular position; wherein the holding receptacles ( 20 ) are connected by a connecting body ( 19 ) having a cross-section corresponding at least to twice the diameter (d) of a holding bracket ( 4 ), and in that the holding receptacles ( 20 ) are formed in the connecting body ( 19 ), the holding length (l) corresponding to no more than three times the diameter (d) of a holding bracket ( 4 ).  
   
   
       36 . Headrest according to  claim 35 , wherein the holding receptacles ( 20 ) are connected by a connecting body ( 19 ) , and in that a snap-in recess ( 37 ) which interacts with a snap-in body ( 39 ) is formed in the connecting body ( 19 ) for the snap-in fixing of a pivoting position of the headrest ( 3 ).  
   
   
       37 . Headrest with adjustment mechanism, for motor vehicles, including rear seat headrest, wherein the headrest ( 3 ) is pivotable about a pivot pin ( 18 ) out of a position of use into a concealed position using a weight force (G) which is active on account of a weight of the headrest ( 3 ) and being displaceable by motor means at least out of the concealed position into the position of use, the headrest comprising: a spindle drive for displacing the headrest ( 3 ), and a spring ( 45 ) that opposes the weight force (G) of the headrest ( 3 ).  
   
   
       38 . Headrest according to  claim 37 , wherein a moment of the spring exceeds the moment resulting from the weight force (G), at least over part of the pivoting travel.  
   
   
       39 . Headrest according to  claim 37 , wherein the spring ( 45 ) comprises at least one of a torsion spring or a torsion bar or a tension spring or a compression spring.  
   
   
       40 . Headrest according to  claim 37 , wherein the spring ( 45 ) is wound around the pivot pin ( 18 ).  
   
   
       41 . Headrest according to  claim 37 , wherein the headrest ( 3 ) has two holding brackets ( 4 ) which are plugged over a holding length (l) into holding receptacles ( 20 ), the holding receptacles ( 20 ) furthermore being pivotable together about a pivot pin ( 18 ) in order to change the angular position, wherein the holding receptacles ( 20 ) are connected by a connecting body ( 19 ) having a cross-section corresponding to at least twice the diameter (d) of a holding bracket ( 4 ), and in that the holding receptacles ( 20 ) are formed in the connecting body ( 19 ), the holding length (l) corresponding to no more than three times the diameter (d) of a holding bracket ( 4 ).  
   
   
       42 . Headrest according to  claim 37 , wherein the cross-section or cross-sectional portion of the connecting body ( 19 ), which is located within a projection of the holding receptacles ( 20 ) for the holding brackets ( 4 ) onto one another, has at least a dimensional size corresponding to twice the diameter of a holding portion.  
   
   
       43 . Headrest according to  claim 41 , wherein the holding bracket ( 4 ) is fixed outside a holding receptacle ( 20 ).  
   
   
       44 . Headrest according to  claim 41 , wherein the holding bracket ( 4 ) is fixed by means of a snap-in arm ( 31 ) disposed on the connecting body ( 19 ).  
   
   
       45 . Headrest according to  claim 41 , wherein two snap-in arms ( 31 ) acting in opposite directions are provided for fixing a holding bracket ( 4 ).  
   
   
       46 . Headrest according to  claim 45 , wherein the holding bracket ( 4 ) is fixed within a holding receptacle ( 20 ).  
   
   
       47 . Headrest ( 3 ) with adjustment mechanism, for motor vehicles, including a rear seat headrest, wherein an angular position of the headrest ( 3 ) relative to a backrest ( 1 ) of a motor vehicle seat ( 2 ), to which the headrest ( 3 ) is fitted, is adjustable and in which height adjustability is provided, the headrest ( 3 ) having two holding brackets ( 4 ), and wherein the holding brackets ( 4 ) merge integrally into a holding portion ( 36 ) of a pivot pin ( 18 ).  
   
   
       48 . Headrest according to  claim 35 , wherein a geometrical axis (x) of the pivot pin ( 18 ) extends within the connecting body ( 19 ).  
   
   
       49 . Headrest according to  claim 47 , further comprising a spindle drive for an angular adjustment of the headrest ( 3 ).  
   
   
       50 . Headrest according to  claim 49 , wherein a pivoting position of the headrest ( 3 ) can be fixed by snapping in.  
   
   
       51 . Headrest according to  claim 50 , further comprising a snap-in recess ( 37 ) which interacts with a snap-in body ( 39 ), and is formed in the pivot pin ( 18 ) for the snap-in fixing.  
   
   
       52 . Headrest according to  claim 50 , wherein the headrest ( 3 ) can be pivoted into the snap-in position by manual actuation.  
   
   
       53 . Headrest according to  claim 51 , wherein the snap-in body ( 39 ) can be brought manually into a release position.  
   
   
       54 . Headrest according to  claim 35 , wherein the connecting body ( 19 ) is formed as a flat body.  
   
   
       55 . Headrest according to  claim 35 , wherein the connecting body ( 19 ) is formed as a polygon.  
   
   
       56 . Headrest according to  claim 35 , wherein the connecting body ( 19 ) is formed as a cast part.  
   
   
       57 . Headrest according to  claim 35 , wherein the connecting body is formed as a bent sheet-metal part.  
   
   
       58 . Headrest according to  claim 35 , wherein a body with a predetermined deformation portion ( 28 ) is provided in the force path of the headrest adjustment or of the headrest support.  
   
   
       59 . Headrest according to  claim 35 , wherein the predetermined deformation portion ( 28 ) is formed in the snap-in body ( 39 ).  
   
   
       60 . Headrest according to  claim 58 , wherein the predetermined deformation portion ( 28 ) is formed in a pivoting drive of the headrest ( 3 ).  
   
   
       61 . Headrest according to  claim 58 , wherein the predetermined deformation portion ( 28 ) is formed in a pivot lever ( 23 ) of the pivoting drive.  
   
   
       62 . Headrest according to  claim 58 , wherein the predetermined deformation portion is formed in an adjustment spindle ( 26 ) of the pivoting drive.  
   
   
       63 . Headrest according to  claim 58 , wherein the predetermined deformation portion ( 28 ) is formed by cross-sectional weakenings.  
   
   
       64 . Headrest according to  claim 58 , wherein the predetermined deformation portion ( 28 ) is formed by fashioning the adjustment spindle ( 26 ) as a yielding spindle.  
   
   
       65 . Headrest according to  claim 41 , wherein the mounting of the connecting body ( 19 ) and/or of the pivot pin ( 18 ) is divided in two.  
   
   
       66 . Headrest according to  claim 35 , wherein the holding brackets ( 4 ) are connected in the region of the headrest ( 3 ) by a displacement yoke ( 7 ), to which the headrest ( 3 ) is also secured, and in that the displacement yoke ( 7 ) can be displaced by means of a spindle drive.  
   
   
       67 . Headrest according to  claim 66 , wherein an electric motor drive ( 8 ) for the spindle drive is mounted in the displacement yoke ( 7 ).  
   
   
       68 . Headrest according to  claim 35 , wherein an electric motor drive ( 8 ) for the height adjustment and an electric motor drive ( 27 ) for the inclination adjustment are coupled electronically for a coordinating movement.