Abstract: An angle adjustment device is disclosed in which the angle of inclination of a headrest or thigh support can be adjusted by rotating a movable body itself forming a part of the headrest or thigh support. When the movable body is rotated, sectors fixed to the movable body are rotated together with the movable body and are engaged with a stopper rod secured to a bracket. Thus, the sectors are locked in a desired position, that is, the angle of the movable body is adjusted. When the movable body is rotated beyond a predetermined angle of rotation, the sectors are disengaged out of the stopper rod and the movable body is rotated in an opposite direction so as to return to its initial position.

Abstract: A seat for use in a vehicle, airplane or the like is disclosed which comprises a top layer member incorporating heating elements therein. Each of the heating elements is enclosed by a cover which is extended with an integral hang portion for fixing the top layer member. The hang portion is fixedly secured to a fixing member provided within the seat.

Abstract: A seat used for vehicles such as an automobile and airplane. This seat comprises a cushion member provided on its surface with one or more markings for positioning of a top member and a top member to cover the cushion member provided with a matching part corresponding to the marking. The cushion member may be formed of a foam material, and the surface of the cushion member may be flat or concavo-convex. The marking may be formed by cutting out the surface of the cushion member or by coloring the same with a coloring agent.

Abstract: A seat frame for use in a vehicle seat which is formed by connecting two side frames to front and rear frames and is provided with two link mechanisms rotatably mounted between the respective inside surfaces of said two side frames and slide rails or a vehicle floor.

Abstract: A lumbar support device which is included in a lower half section of a seat back and is capable of adjusting the supporting pressure of the lower half section of the seat back. The lumbar support device comprises a control/operation mechanism for adjusting said supporting pressure, an operation mechanism for the control/operation mechanism and a flexible wire connecting both mechanism with each other, whereby the control/operation mechanism can be remotely controlled. Also, the operation mechanism can be installed in a position which is easiest for an occupant to operate.

Abstract: A vehicle seat is disclosed which includes a pan-type frame, a pad formed of a foam material, and a top layer adapted to cover the surface of said pad and also to fix said pad to said frame, while the end of said top layer is secured to the frame simultaneously with the formation of said pad. Accordingly, the conventional fixing step of fixing the top layer end to the frame by means of hogged rings or the like is not necessary, which results in a simplified and positive fixation of the top layer end. In other words, the following conventional steps can be eliminated: forming a frame in a pan structure; causing a foam material to foam within a metal mold having a predetermined configuration to form a pad in order to obtain a structure corresponding to that of the associated seat; and placing a top layer over the pad to be secured to the frame. With the invention, the top layer can be integrally secured to the frame by means of a foam material for forming a pad.

Abstract: A novel and improved fillet welding equipment is disclosed which comprises a movable member adapted to be movable longitudinally of the welding equipment, a threaded shaft inclined forwardly and mounted to the movable member, a welding torch threadedly connected with the threaded shaft to be movable upwardly or downwardly in a direction of inclination of said threaded shaft, and a jig positioned in front of the welding torch to carry members to be welded and adapted to be rotatable longitudinally of the welding equipment, whereby the whole periphery of the pipe member to be welded can be completely welded by a single welding torch.

Abstract: A lumbar support device in which a lumbar support member is pivotally secured to a swing frame mounted swingably in a fore-and-aft direction relative to a back frame such that the lumbar support member can be rotated back and forth, the angle of the fore-and-aft inclination of the swing frame relative to the back frame can be variably adjusted by means of a cam mechanism, and the angle of inclination of the lumbar support member relative to the swing frame can be adjusted by means of an inclination adjustment means.

Abstract: A seat structure containing a frame for a back seat, and a panel for a headrest, which panel is welded in a surrounding manner about said frame.

Abstract: A head-rest device is disclosed which comprises a head-rest stay, a head-rest holder mounted to a seat back and a lock mechanism provided within the head-rest holder. The head-rest stay is inserted into its associated head-rest holder. The head-rest stay is formed with two or more pairs of slotted recesses on its circumferential surface. Such pair of slotted recesses are located at required intervals in a vertical direction from each other and correspond to each other in a staggered manner. An engagement body, which has a required thickness and is formed with a stay insertion bore having a diameter substantially equal to that of the head-rest stay, is inclinably inserted via a spring into the head-rest holder. A retaining member is also provided which is capable of retaining the engagement body in its inclined position in which the upper and lower edge portions of the stay insertion bore are engaged with a pair of slotted recesses respectively.

Abstract: A headrest device mountable to a stay extending from the top of a backrest of a vehicle seat includes (1) a stationary frame portion which includes two vertical plates having vertically-elongated openings therein and guide projections extending away from their outer sides, (2) a movable frame portion which includes two side panels and a central panel extending therebetween, each of the side panels including upper guide slots, lower guide slots and a hole therebetween, (3) a braking mechanism which includes an outer case connected to a side panel, an inner case therein and a coil spring having engagement portions at its opposite ends, the inner case defining two engagement edges and having an operating shaft and and actuating shaft, and (4) an eccentric cam mechanism for moving the movable frame portion relative to the stationary frame portion, and including two disc elements movable in respective elongated opening in the plates, a connecting tube and support arms, one support arm including a boss to which the

Abstract: A vehicle seat is provided which has a pad member having a depression on its upper surface, adhesive material disposed in the depression in the pad member and a top member adhered to the pad member at the depression by the adhesive material, whereby a depression is formed in the top member and a number of decorative creases are formed along the periphery of the adhered portion of the top member. Alternatively, the top member can have a depression on its upper surface, adhesive material can be disposed on the under surface of the top member below the depression, and a pad member can be adhered to the top member at the depression by the adhesive material whereby a number of decorative creases are formed along the periphery of the adhered portion of the top member. The top member can be either a single sheet of material or an assembly formed of a sheet of material, foamed wadding, and a wadding cover.

Abstract: A passive restraint using a seat belt is disclosed which serves to secure the safety of an occupant in a vehicle seat. In this passive restraint, a front frame section of a cushion frame of the seat is formed with a recessed portion, a belt retractor is fitted into and fixed to this recessed portion, and a belt guide is provided in the rear portion of one of side frame sections of the cushion frame which continues from a corner portion where the recessed portion is formed, whereby the seat belt that is guided from the belt retractor is extended along the outer surface of the above-mentioned one side frame section, inserted through the belt guide, and then turned over upwardly of a seat cushion of the vehicle seat.

Abstract: A resistance welding device includes a base structure having vertically separated ceiling and floor members. The ceiling member includes a first pair of rail members to establish a y-axis and to thereby dependently support a first mounting structure. The first mounting structure in turn includes a second pair of rail members to establish an x-axis and to dependently support a pair of electrode guns therefrom. In such a manner, a matrix configuration of welding points can be welded so as to weld a pair of weldable members to one another.

Abstract: In a carpet having a through bore, the through bore is formed by fusion-cutting. A hem member is welded integrally to the areas of a napped portion and a base cloth at the circumferential edges of the through bore. This prevents the threads of the napped portion existing at the circumferential edges of the through bore from fraying and also keeps such areas from being stained with oil or the like. Also, a method of welding said hem member to said base cloth is disclosed which comprises: laminating a thermally weldable synthetic resin film for hemming on a carpet, punching out a through bore in the synthetic resin film by means of a high frequency wave, and at the same time welding the hem member integrally to the wall edges of said punched through-bore. The simultaneous operation--welding of the hem member and punching of the through bore--provides a carpet quite easy to form and less expensive.

Abstract: A slide adjustment device for use in a seat of a moving vehicle such as an automobile or airplane. The device includes a lower rail adapted to be attached to the floor of the vehicle, an upper rail to be attached to the seat, and slidably moveable with regard to the lower rail. A sliding element is provided which slides relative to the rails and is provided between the upper and lower rails.

Abstract: A method of manufacturing a cushion material by welding under heat a first layer to an adjoining second layer at necessary portions of the latter by use of a welding member having a plurality of pressure applying projections. The material of the second layer is deformed and molten and flows at temperatures higher than those of the material of the first layer. In the method, the surface portions of the first layer not engaged by the welding member and lying closer to the welding member and/or the welding member itself are cooled by cooling gas thereby welding the first layer to the second layer without giving rise to any appreciable thermal change on the surface of the first layer except the portions engaged by the welding member.

Abstract: A top member for a vehicle seat includes a top layer, wadding and a wadding cover laminated to one another. Rigid button core members having outer circumferential portions are interposed between the top layer and the wadding or between the wadding and the wadding cover. The outer layer and wadding cover are adhered to one another along lines radially extending between pairs of button core members and are annularly adhered to one another at the outer circumferential portions of the button core members.

Abstract: An improved pan cushioning frame for a vehicle seat is disclosed. The frame comprises separately-formed two side frames and a center panel. The side frames are made of steel plate which is thicker than that for the center panel. The three parts are connected together to form the pan cushioning frame. According to the invention, the frame thickness and form can be selected depending on load to be applied thereto, and it requires no additional reinforcing members. Further, the frame will not be over-strong since too thick plate is not used.

Abstract: A seat frame with an integrally built-in slide rail mechanism, in which a seat-frame side member and a member corresponding to the upper member of the slide rail are integrally combined into a frame structure defining an internal space of closed section, and principal parts of the slide rail mechanism, including a stopper actuated by a handle through a lever, are disposed in this internal space. A slide-rail lower member disposed beneath the corresponding member is formed with locking slots with which engaging lugs of the stopper are engageable so that the seat frame can be locked in any desired position and unlocked to make longitudinal movement along the slide rails.