Armrest
An armrest has a base, an arm support pivotal on the base about a pivot axis in opposite pivot directions between a first position and a second position, and a latch for locking the arm support pivotally relative to the base in at least one pivot position. The latch has a movable first formation and an immovable second formation that can be releasably engaged with the first formation. The first formation is movable between a locked position and a released position and is urged by a spring or the like into the locked position. The armrest is mounted on a seat, for example, and in particular a vehicle seat.
1. An armrest comprising:
a base;
an arm support pivotal on the base about a pivot axis in two opposite pivot directions between a first end position and a second end position;
a latch for locking the arm support pivotally relative to the base in at least one pivot position, the latch having an angularly and axially movable array of axially extending first teeth rotationally fixed on the arm support or base and an angularly immovable array of axially extending second teeth that can be releasably engaged with the first teeth, the first teeth being movable between a locked position meshing with the second teeth and inhibiting pivoting of the arm support in at least one of the directions and a released position clear of the second teeth and allowing pivoting of the arm support in the one direction and oppositely the other direction;
spring means urging the first teeth into the locked position;
a control element operatively engageable with the first teeth in a predetermined angular position of the arm support for moving the first teeth into the released position; and
a manually operable actuating element separate from the control element and including axially extending arms connected to the first teeth for moving the first teeth into the released position.
2. The armrest defined in claim 1 , wherein the second teeth are integrally formed on the base or on the arm support.
3. The armrest defined in claim 1 , wherein the arrays of the first teeth and of the second teeth are coaxial to the pivot axis of the armrest.
4. The armrest defined in claim 1 , further comprising:
a stem projecting from the base, forming the pivot axis, and on which the arm support is pivotable.
5. The armrest defined in claim 4 , wherein the arm support has an end formed with a hole through which the stem extends.
6. The armrest defined in claim 4 , wherein the arm support and the stem form a slide bearing.
7. The armrest defined in claim 1 , wherein the base has separate first and second bearing surfaces on which respective first and second counter-surfaces of the arm support are braced.
8. The armrest defined in claim 7 , wherein the base is formed with coaxial first and second stems on which the respective bearing surfaces are formed.
9. The armrest defined in claim 8 , wherein one of the bearing surfaces is radially of larger diameter than the other of the bearing surfaces.
10. The armrest defined in claim 1 , wherein the manually operable actuating element axially shifts the first teeth into and out of mesh with the second teeth.
11. The armrest defined in claim 1 , wherein the arms are axially shiftable in but not angularly movable relative to the arm rest so as to angularly couple the first teeth to the armrest.