Abstract: A reclining angle adjustment device used to obtain best inclination of a reclining seat for passengers, including a seat back arm fixed to a seat back portion, a base arm with an internal gear connected with the seat back arm through an axis, a stopper, a regulating plate, the first control lever and the second control lever. For rough adjustment, the first control lever is inclined forwardly or backwardly by a passenger on seat so as to disengage the stopper from the regulating plate. For minute adjustment, the second control lever is repeatedly moved round upwardly and downwardly so as to roll a pinion in the internal gear provided in the seat back arm.

Abstract: A reclining angle adjusting device used to obtain best angle of inclination of a reclining seat for passengers, including an external gear being activated by a compression spring, the first arm member fixed to a seat with an internal gear, the second arm member fixed to a seat back with an internal gear. Minute adjustment is performed through said external gear by way of rotation of an adjustment handle whereas rough adjustment is performed quickly by pushing said adjustment handle to disengage said external gear from said internal gear of the first arm member.

Abstract: A seat having a back frame pivotally mounted on a seat frame for tilting the back frame relative to the seat frame and latching structure for locking the back frame in any one of several tilted positions. The latching structure comprises a notched plate pivotally mounted below the seat frame and notch-engaging means connected to and pivotable with the back frame.

Abstract: This invention provides a mechanism for adjusting the angle of the seat back to the seat in which a four link mechanism is provided and a segmental gear and a manual handle cooperate for engagement with each other in locking the four link mechanism and hence the back in immovable position against a gravity of a passenger.

Abstract: A hinge device for supporting an armrest on a vehicle seat includes a ratchet mechanism in which ratchet teeth are disposed around the inside of a ratchet ring for engagement with a pawl carried by a rotor within the ring. A blocking ring coaxial with the ratchet ring is overlapped by the pawl and is carried along by engagement of the pawl in a recess of the blocking ring as the pawl ratchets over the teeth. After clearing the ratchet teeth, the pawl is lifted by cam action from the recess on to the inner surface of the blocking ring which masks the ratchet teeth and allows the pawl to be returned to its starting position where it is restored by cam action to its recess in the blocking ring wherein it can once again engage the ratchet teeth.

Abstract: A reclinable seating structure in the form of a tubular framing structure having a pair of control means pivotably secured in a spaced arrangement on the seating structure and coupled together to be controlled and pivoted in unison for latching and unlatching the back supporting structure between an upright and a plurality of reclining positions.

Abstract: A baby carriage having a foldable frame to which is pivotably connected reclining rest rods which support the back of the carriage seat. The rest rods can be inclined to any selected one of a plurality of predetermined positions, as determined by a locking mechanism rigidly attached to the foldable carriage frame and pivotably connected to the inclined rest rods. Operating rod members are movably connected to the rest rods to select a desired seating inclination and to engage the locking mechanism in accordance with the selected inclination.

Abstract: A reclinable seating structure in the form of a seating tubular frame utilizing the frame for the mechanism to allow the back supporting structure to be movable is realized. The reclining spring is housed completely within the tubular frame thereby substantially reducing the manufacturing costs.

Abstract: A spring loaded frame pivotably mounted in the backrest frame is easily unlocked by light pressure applied to a lever disposed at the side of the seat proper whereby the pressure of the seated person's back pressing against the backrest portion urges the pivotable frame to a new position, in which the pressure applied to the dorsal and lumbar regions of his or her back are substantially equal, and in which it is lockable.

Abstract: A reclining seat for a variety of different uses, but in particular for vehicles such as vans, motor homes, car seats and buses, in which a reclining back is pivoted to the rear portion of the seat section and a latch mechanism for retaining the back in a selected position consists of a striker plate attached to the back and a releasable lever mounted on the seat section for engagement with shoulders on the striker plate to hold the seat in selected positions. The back is urged forwardly by a spring, preferably a coil spring on each side between the seat section and the back, into engagement with a removable abutment on the seat section. The abutment can be removed and the back tilted forwardly sufficiently to relieve tension on the coil spring to facilitate replacement thereof.

Abstract: A seat back frame member and a seat cushion frame member are connected by a pivot to permit adjustment of the reclining angle of the seat back. A sector is provided on the seat back frame member and is serrated to display a plurality of teeth disposed in an arcuate path about the seat back pivot. First and second latch bars, each having a serrated arcuate end surface, are pivotally mounted on the seat cushion frame member for pivotal movement between engaged positions in which the teeth of the latch bars engage the teeth of the sector and disengaged positions. A spring acts between the latch bars to urge rotation of the latch bars in opposite directions of rotation to their respective engaged positions. When the latch bars are in engaged position, forced pivoting of the back frame member in either direction relative the cushion frame member causes one of the latch bars to be forcibly wedged against the sector while the other latch bar tends to pivot in the disengaging direction.

Abstract: A fitting for a vehicle seat having a tiltable backrest member includes one hinge member that is connectable to the backrest member and another hinge member that is connectable to the backrest member. A pivot arrangement connects the hinge members for relative pivoting movement, and an arresting arrangement is provided for arresting the hinge members in selected relative angular positions. The arresting arrangement includes a tubular boss on at least one of the hinge members and a pawl that is journalled on the boss for turning movement about the same. A screw or bolt extends through the boss and connects the hinge member to the associated seat member or backrest member.

Abstract: A reclining seat device including a fixed seat cushion base having a horizontal shaft and a seat back arm supported upon said base so as to be rotatable around the horizontal shaft. The seat back arm and the base are respectively provided with serrations, which are connected to each other under normal conditions. A release lever pivotably supported at the horizontal shaft includes means for releasing the connection of said seat back arm with the base when the release lever is turned, whereby the seat back may be rotatable around the horizontal shaft. The release lever is also provided with a return spring, and accordingly by adjusting the seat back at a suitable angle and releasing the release lever, the seat back may be set at a desired angle position.

Abstract: A vehicle seat support assembly including a fluid spring that supports an upper seat base on a lower floor base at a vertical height corresponding to the adjusted position of an adjustable control linkage which extends between the seat base and a time delay valve whose operation controls the amount of pressurized fluid within the fluid spring. The control linkage includes an adjustment link pivotally mounted on the seat base for adjusting movement and connected to one end of a connecting link whose other end is connected to an actuating link that controls the valve. The control linkage actuates the valve so that the seat base is positioned at the same vertical height for any adjusted position of the linkage regardless of the seat occupant's weight. The control linkage is adjustable to vary the height at which the seat base is positioned and is prevented from transiently actuating the valve during dynamic vertical movement of the seat base by the time delay operation of the valve.

Abstract: An adjustable recline-control mechanism for furniture of the type comprising a carrier for an occupant, e.g. a seat-pan and a support e.g. a back-rest, reclinable relative to the carrier wherein the angle of recline is controlled by the mechanism which comprises a link one end of which is pivotally connected to the support while the other end is latchable by at least two co-operating latching portions which respectively prevent travel of the link in opposite directions, the respective latching portions being spaced apart relative to the pivot axis of the link such that a jolt to the front or back of the support exerts on the link a moment which biasses the link towards latching irrespective of the direction of the jolt.