Molded Patents (Class 297/DIG2)
  • Patent number: 6093351
    Abstract: A seat avoiding crumples of a surface material covering a cushioning body thereof, giving a comfortable soft feeling for a person who sits thereon and having such a hardness that a weight of the person can be supported. A seat (1) comprising a surface material (2) and a cushioning body having a shape corresponding to an outline of the seat. The cushioning body composing of a first cushioning body (6) integrated in one with at least a part of the surface material and a second cushioning body (10) underlying the first cushioning body.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: July 25, 2000
    Inventors: Taro Ogawa, Fumio Goto
  • Patent number: 6089669
    Abstract: A two-piece folding outdoor seat for recreational boats and the like includes a hollow molded seat member and a hollow molded back member. The seat member has an upper surface shaped to abuttingly support a seated user thereon, and a raised rearward portion elevated above the upper surface and shaped to abut the lower back area of the seated user for improved comfort. The raised rearward portion of the seat member includes a plurality of integrally formed hinge fingers extending along an upper portion thereof. The back member has a plurality of integrally formed hinge fingers extending along a lower portion thereof. The hinge fingers on the raised rearward portion of the seat member and the back member are meshed with one another and pivotally interconnected to define a horizontally oriented hinge therealong which permits the back member to be shifted between a lowered storage position and a raised use position.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: July 18, 2000
    Assignee: Attwood Corporation
    Inventors: Jeffrey S. Wilcox, Clifton J. Ratza, Jason E. Begin
  • Patent number: 5988757
    Abstract: A vehicle seat assembly includes an aluminum lower seat frame with first and second side supports having a thickness of less than four mm throughout a substantial portion thereof. The seat back frame is pivotally connected to the lower seat frame and comprises a contoured structural reaction injection molded (SRIM) material. In an alternative embodiment, the back frame comprises a plurality of glass mat layers enclosed within a molded urethane material. Extra glass mat layers are provided in high stress concentration areas for added structural integrity.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: November 23, 1999
    Assignee: Lear Corporation
    Inventors: Gregory J. Vishey, Michael Walkowski, Ashley L. Baisch
  • Patent number: 5934758
    Abstract: An office-type chair, having separate seat and back parts each cushioned and employing a thin inner plastic shell having a perforated central region formed as a thin membrane which is supported solely around the peripheral edge thereof by a suitable ringlike support frame. This membrane is semi-rigid in the plane thereof, but possesses at least limited resiliency in the thickness direction and, being free of direct underlying support, provides direct support for the cushion which in turn engages either the back or posterior of the user to provide limited flexibility and desirable comfort and ergonomic support. The membrane in the central region is provided with a first series of wavy strips which extend between the border of the membrane, with the first strips extending transversely across the membrane in one direction in spaced relationship, and a second series of wavy strips extending transversely across the membrane in the other transverse direction.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 10, 1999
    Assignee: Haworth, Inc.
    Inventors: David J. Ritch, Mark B. Saffell, Larry A. Wilkerson
  • Patent number: 5927805
    Abstract: A children's stackable high-chair which is easily stackable and washable. One high-chair is integrally formed of a single piece of material and has a forward restraint secured thereto. A preferred high-chair includes a seat supported by two integral side vertical members, two lower, horizontal members, a rear horizontal member, and having a lower, frontal opening between the two vertical side members. The high-chair allows stacking requiring little vertical inclination and height of the high-chair to be stacked. The high-chair also allows stacking while creating only a small stacking angle from vertical. The high-chair allows stacking with only a relatively small increase in stack height for each high-chair relative to the height of each high-chair.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: July 27, 1999
    Assignee: Koala Corporation
    Inventors: Jeff H. Hilger, Mark A. Betker
  • Patent number: 5860697
    Abstract: A moulded plastic chair (1) fabricated using an air mould technique with four substaitially identical legs (4, 5) which are hollow, have a constant cross-section along their length and have a leading convex edge (13) and a rearward concave edge (14). The shape and arrangement of the legs (4, 5) constitutes a stacking mechanism which enables like chairs to be conveniently stacked. A indicator (8) able to indicate the size of the chair (1) is also disclosed as is a pair of protrusions (8) on the upper edge (7) of the backrest (3), the protrusions (8) providing a support for a school bag (10).
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: January 19, 1999
    Assignee: Sebel Furniture Limited
    Inventor: Michael Andrew Fewchuk
  • Patent number: 5857742
    Abstract: A hollow chair may hold an amount of weight due to a flowable material contained therein and may be joined to on or more chairs.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: January 12, 1999
    Assignee: NORIX Group, Inc.
    Inventors: Richard B. Karl, Harvey Hanig
  • Patent number: 5755488
    Abstract: A chair including a seat support, a seat movably supported on the seat support for movement between a raised position permitting sliding depth adjustment of the seat and a lowered position preventing adjustment, and a detent device for securely holding the seat in the raised position while the seat is being slidable adjusted. A rack is formed integrally on or attached to the bottom of the seat shell. The detent device includes a seat support bracket attached to a top of a chair control, and a pair of moldings attached to opposite sides of the bracket. The moldings each include upwardly facing teeth for selectively engaging the racks to hold the seat in a selected, depth adjusted position. A resilient finger on each molding is adapted to engage a ridge on the seat shell for selectively holding the seat in either a raised position or in a lowered position.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: May 26, 1998
    Assignee: Steelcase Inc.
    Inventors: Gregory S. Beda, Daniel P. Beemer, Diane L. Ellis, Michelle R. Johnson, Charles P. Roossien, James P. Steffens
  • Patent number: 5746479
    Abstract: An armrest is provided for attachment to a chair. The chair includes vertical tubular sections which form a portion of a chair frame with open upper ends. Each armrest has a metal reinforcement with an intermediate section and downwardly protruding end sections, the end sections having an intermediate bent portion and two spaced apart portions such that the bent portion and the spaced apart portions define a dimension adapted to frictionally engage the open ends of the upright tubes. The metal reinforcement is formed from a steel rod weldment and a urethane cover is molded onto the rod weldment to support a user's forearm. To assemble the armrests, the end sections are pressed into the open ends of the vertical tubes, thus providing an easily assembled, secure and stable attachment of the armrest to the chair frame.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: May 5, 1998
    Assignee: Steelcase Inc.
    Inventor: David A. Bodnar
  • Patent number: 5722728
    Abstract: A headrest for motor vehicle seats therein two support rods projecting from a resilient body are slidably mounted through a pair of tubular guide elements rigidly secured to the structure of the backrest of the seat so as to allow height adjustment of the headrest. The lower ends of the support rods are rigidly connected to each other by a transverse member to which a remote control operating device is operatively connected to perform raising and lowering thereof.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: March 3, 1998
    Assignee: Gestind-M.B. "Manifattura di Brusolo" S.p.A.
    Inventor: Emilio De Filippo
  • Patent number: 5713634
    Abstract: A seat back structure of a vehicle seat with a headrest provided thereon, in which a blow-molded plastic seat back frame is utilized, with an anchor bracket pre-assembled integrally therein. The headrest is supportively secured on that anchor bracket. A connecting element, such as a locking element, is provided between the anchor bracket and a body of vehicle, so that a load applied to the headrest is dispersed through the anchor bracket and connecting element toward the body of vehicle, which does not require any reinforced elements and designs to the seat back frame per se and thus permits the seat back frame to be made light in weight.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: February 3, 1998
    Inventor: Toshihisa Koike
  • Patent number: 5702159
    Abstract: A cushion body (10) for forming a car seat, which facilitates attachment of a skin material (15) to a cushion material (11).The cushion body (10) is made by attaching a planar fastening body (12) in a cushion material molding die (20) and unifying with the cushion material (11) along a three-dimensional curved surface shape of an interior surface of the die by an internal foamed molding pressure of the cushion material (11). The planar fastening body (12) is made of a planar fastening material (13) connecting with a supporting material (14) which is basically the same composition as the cushion material (11).
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: December 30, 1997
    Inventors: Chikara Matsuoka, Takeshi Watadani, Kunihisa Wakimoto, Yukihiro Kinoshita
  • Patent number: 5700057
    Abstract: A headrest for motor vehicle seats comprising a resilient body incorporating a molded plastic material supporting framework connected in a frictionally rotatable way to a bearing structure. The supporting framework has an integral tubular base directly overmolded on the transverse member of the bearing structure, so as to perform a mutual rotatable coupling with interference without any need of auxiliary friction members.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: December 23, 1997
    Assignee: Gestind-M.B. "Manifattura di Brusolo" S.p.A.
    Inventor: Emilio De Filippo
  • Patent number: 5678890
    Abstract: A rocking chair having two identical side frames (40a,b) made of a plurality of tubular members connected together by joint members, each of the side frames being attached to and separated from each other by tubular front seat (4) back seat (5) and head rest (3) rail members. At the bottom of each frame is a curved rocking member (1a,b) with T-joint members (7a, b; 19a,b) at each end to form a safe rocking surface not prone to tipping. All tubular members and joint members are preferably made of PVC to provide a lightweight rocking chair for easy carrying even by small children. The use of PVC also results in a rocking chair that is durable, resistant to the elements and inexpensive. A seat (20) and back (21), preferably made of fabric suspended between the front and back seat rails and back seat and head rest rails, respectively, is provided.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: October 21, 1997
    Inventor: Randy L. Tenbroeck
  • Patent number: 5679197
    Abstract: A method for bonding a cover fabric to a cushion body to form a seating component, preferably a seat cushion of a vehicle seat assembly, includes the step of supplying a heated atmosphere, preferably steam under pressure, to a forming tool of a forming apparatus, the forming tool diffusing the heated atmosphere and passing the heated atmosphere out of the tool, through the cover fabric, and into the cushion body to melt an adhesive layer between the cushion body and the cover fabric, while the cushion body and cover fabric are subjected to a pressurized environment, preferably by locating the forming apparatus, the cover fabric, and the cushion body in a pressure chamber maintained at relatively high pressure.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: October 21, 1997
    Assignee: Hoover Universal, Inc.
    Inventors: Gregary A. Haupt, Paul E. Koenig, Annette H. Holbrook, David H. Eggleston
  • Patent number: 5673972
    Abstract: A vehicle seat assembly comprises a lower support frame with a seat back frame pivotally connected to the lower support frame. The back frame includes a headrest portion with an aperture formed therethrough. First and second recliner brackets are secured to the lower support frame between the lower support frame and seat back frame, and each recliner bracket forms a slot therein. A seat dump mechanism includes a lever extending from the aperture with first and second cables operatively connected to the lever. First and second lock-pins are operatively connected to the cable and selectively movable between the first position in which the first and the second lock-pins are engaged within the first and second slots, and a second position in which the first and second lock-pins are disengaged from the first and second slots such that the back frame is disengaged from the recliner to allow pivotal movement of the back frame with respect to the lower support frame.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: October 7, 1997
    Assignee: Lear Corporation
    Inventors: Eugene S. Dudash, William Barr
  • Patent number: 5643385
    Abstract: A method of integrally bonding a foam seat pad or other article to a cover material, includes steps of coating a main surface of the pad with a heat activated adhesive. Then, the pad is affixed to an upper mounting member. A lower mounting member is positioned opposite the upper mounting member and the cover material is disposed on the lower mounting member. Heating is applied to the adhesive coating the main surface of the pad, and when sufficient heat is applied the upper and lower mounting members are pressed together for a predetermined time period. Clamps are provided on the mounting members for surely positioning the pad relative the cover material. Thus, accurate positioning and strong bonding are reliably assured.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: July 1, 1997
    Assignee: Ikeda Bussan Co.,Ltd.
    Inventors: Masanobu Kikuchi, Norio Yanagishita, Koji Yamada
  • Patent number: 5611602
    Abstract: A seat for a child's swing is of the type having a plate-like substantially rigid member to bear the weight of a user sitting on the seat, and resilient polymeric material secured to the plate-like member. The resilient polymeric material extends beyond the outline of the plate-like member to form a border around the edges of the plate-like member, and forms a peripheral dependent skirt of substantial thickness. To achieve greater safety in use, the border includes a hinge-like portion of the resilient material, the plate-like member in the region of the hinge-like portion is configured to provide room for the dependent skirt to hinge beneath the plate-like member, and in an impact between the edge of the seat adjacent the hinge-like portion and an object, the skirt is progressively deformed and forced to hinge inwards against the resilience of the hinge-like portion.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: March 18, 1997
    Assignee: Sutcliffe Leisure Limited
    Inventor: David F. Brady
  • Patent number: 5599069
    Abstract: A flexible unitary seat shell is disclosed to include: a base section defining a base section plane, the base section including two frame sockets for engaging, along axes that are substantially parallel to the base section plane, projections on a seat frame, each of the two frame sockets protruding from a back of said base section and including an encircling aperture that defines a plane that is nonparallel to the base section plane; a back section in angular relationship to the base section; and an intermediate section connecting the base section to the back section, the intermediate section forming a hinge between the base section and the back section to permit changes in the angular relationship between the base section and the back section.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: February 4, 1997
    Assignee: Milsco Manufacturing Company
    Inventor: James R. Lorbiecki
  • Patent number: 5599068
    Abstract: A safe and stackable molded plastic chair having a structurally reinforced molded plastic body portion comprised of an integral seat and back rest employing generally curvilinear lines. An integral molded plastic mounting boss, having a hole formed therethrough, is formed on each corner of the seat. An arch-shaped, tubular plastic leg element having two legs is attached to each side of the seat by bolts inserted through the holes in the bosses. The bolt head seats in a recess formed in the boss. The bolt engages an arcuately shaped combination brace and fastener element situated with the tubular leg adjacent each mounting boss. During assembly, the brace and fastener element is positioned within the tubular leg by a removable, elongated magnetic or threaded rod until the bolt is sufficiently tight to draw the leg against the boss. The rod is removed leaving no exposed mounting hardware. A plug is inserted in the open end of each leg and a plastic sleeve covers the plug and leg end.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: February 4, 1997
    Assignee: Angeles Group, Inc.
    Inventors: Ray G. Kelly, Sharon A. Turnbough, James McJunkin
  • Patent number: 5594983
    Abstract: A hollow chair may hold an amount of weight due to a flowable material contained therein and may be joined to one or more chairs.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: January 21, 1997
    Assignee: Norix Group, Inc.
    Inventors: Richard B. Karl, Harvey Hanig
  • Patent number: 5582460
    Abstract: A chair is provided having a blow molded back rest and a mechanism which permits the back rest to pivot rearwardly and to be vertically adjusted. The mechanism has a carrier block slidably engaging vertical slots in a support member for vertical adjustment movement. The back rest is operatively attached to the carrier block so that the back rest can move in the vertical direction in unison with the carrier block or pivot rearwardly. The carrier block has a curved integral spring which engages the rear of the back rest to bias the back rest forward and to regulate the rearward pivoting motion as the user reclines.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: December 10, 1996
    Assignee: Hon Industries Inc.
    Inventor: Craig H. Schultz
  • Patent number: 5542747
    Abstract: An automotive vehicle passenger seat is described. The seat includes a frame element made from a relatively high density rigid foam, a vehicle anchorage connector and a seat body including a resilient material fixed with respect to the frame element. The vehicle anchorage connecter serves to anchor the seat to the automotive vehicle. The seat obviates the need for a metal frame thereby reducing the cost and weight of the seat, and improving the recyclability thereof. In a preferred embodiment, the seat further includes a pelvic support element which acts as an anti-submarine device.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: August 6, 1996
    Assignee: Woodbridge Foam Corporation
    Inventor: Charles R. Burchi
  • Patent number: 5540481
    Abstract: A structural support shell for a tilt-back chair has a back portion, a seat portion, and a flexible compression zone extending between the back and seat portions in an integrally molded, one-piece unit. The chair has a base with a recline control pivoting recline control lever. The seat portion of the shell is fixed to the base and the back portion of the shell is fixed to the recline control lever. The flexible compression zone provides a simplified construction for an ergonomic chair design having an effective axis of rotation between the back portion and seat portion which is located above the seat portion, forward of the back portion, and generally adjacent to the hip joints of a seated user.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: July 30, 1996
    Assignee: Steelcase, Inc.
    Inventors: Charles P. Roossien, Dale M. Groendal, James E. Massey, Robert M. Scheper, Douglas A. Smith, David C. Pugh
  • Patent number: 5538326
    Abstract: A flexible unitary seat shell including: a base section; a back section in angular relationship to the base section; and an intermediate section connecting the base section to the back section, the intermediate section forming a hinge between the base section and the back section to permit changes in the angular relationship between the base section and the back section.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: July 23, 1996
    Assignee: Milsco Manufacturing Company
    Inventor: James R. Lorbiecki
  • Patent number: 5536065
    Abstract: The body (1) of the saddle is provided in the lower part with two rectilinear limbs (2 and 3) which advantageously have a circular shape at the respective ends and which are turned towards the interior. These two limbs are grasped by the parts (4 and 5) of the clamp. These parts are connected between themselves and connected with the head (6) of the sleeve (7) with a screw (8). The latter has advantageously an Allen head (9). In this manner, the hooking of the body (1) of the saddle to the sleeve (7) is simplified and it is also possible to regulate the position of the saddle both in the horizontal direction and in the inclination of the saddle by maneuvering the screw (8). The saddle consists of a one-piece monohull body.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: July 16, 1996
    Assignee: Selle San Marco di Girardi Comm. Luigi S.p.A.
    Inventor: Antonio Girardi
  • Patent number: 5524961
    Abstract: A bicycle saddle having an air-filled bladder. The bladder is a durable plastic film chamber having an easily accessible air pump and release valve that allows the bicyclist to adjust the air pressure to his/her comfort without dismounting and or seeking an air supply. The bladder is fitted into a contoured cavity located in a plastic shell base. The bicyclist's weight is supported by the bladder which maintains its shape due to material selection and thickness plus a supporting base. Additional dimensional stability is provided by spot welds of the bladder material to control expansion. Also, an optional skirt is provided on the bladder to further hold it in position when inflated. A simple push pump at the rear and a release valve button under the nose of the saddle enables the saddle to be adjusted for pressure. Metal rails provide generous fore and aft adjustment and a place to firmly clamp the saddle to the bicycle seat post.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: June 11, 1996
    Inventor: Charles R. Howard
  • Patent number: 5522645
    Abstract: A seat including: (A) a shell including a front surface, the front surface of the shell including a channel formed in the shell, the channel including an inner wall and an outer wall and having a shape; (B) a cushion including a rear surface, the rear surface of the cushion including a ridge extending rearwardly from the cushion, the ridge (1) having a shape which compliments the shape of the channel and (2) extending into the channel; and (C) mechanical fasteners extending through the outer wall of the channel, though the ridge and into the inner wall of the channel so as to retain the cushion on the shell. The mechanical fasteners do not extend all the way through the inner wall.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: June 4, 1996
    Assignee: Milsco Manufacturing Company
    Inventor: Bruce B. Dahlbacka
  • Patent number: 5518296
    Abstract: A bleacher recliner assembly for use as a chair or in combination with existing rows of collinear bleacher seats having a forward row and a rearward row of backless bleachers. The bleacher recliner assembly includes a back rest portion and a seat portion hingedly connected to secure the back rest relative to the seat in a first upward position or any number of reclining positions. A hinge device formed from slots in the seat portion and adjustable pins mounted on the back rest permits angular adjustment of the back rest.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: May 21, 1996
    Inventor: Fred Compardo
  • Patent number: 5496091
    Abstract: A hollow chair may hold an amount of weight due to a flowable material contained therein and may be joined to on or more chairs.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: March 5, 1996
    Assignee: Norix Group, Inc.
    Inventors: Richard B. Karl, Harvey Hanig
  • Patent number: 5494725
    Abstract: A load bearing structure with a base and an array of load bearing members, each load bearing member having the general form of a cantilevered beam and made of a resilient material, and having a tip, generally front and back faces, and a bottom, the bottom for interengaging the load bearing member and the load bearing structure. The beam generally increases in thickness from tip to bottom, and both faces are generally planar. The plane of the face and of the back join at an angle .beta., and the plane of the back is disposed to the plane of the bottom at an angle .alpha..
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: February 27, 1996
    Assignee: Nippon Steel Corporation
    Inventor: Mark Fejes
  • Patent number: 5492662
    Abstract: An improved method of making a more comfortable and easily recyclable body for a vehicle seat component using thermoplastic polymeric fibers is described. This method produces a body of thermoplastic polymeric fibers consisting of zones of different densities.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: February 20, 1996
    Inventors: James A. Kargol, Gregary A. Haupt
  • Patent number: 5464272
    Abstract: An armrest for a vehicle such as an automobile includes at least one concave core which is covered with an upholstery material. In one-embodiment, the peripheral edge of a core is covered with a panel which secures the edge of the upholstery material to the core. In another embodiment, the core defines recesses on opposite sides and is covered by a multi-sectioned upholstered panel with sides which extend into the recesses. In yet another embodiment, a plurality of concave core sections are covered by an upholstery material and hinged together to define an armrest.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: November 7, 1995
    Assignee: Prince Corporation
    Inventors: David J. Spykerman, Gerald M. DeShaw, Michael J. Gregg, Randy E. Eldred
  • Patent number: 5419617
    Abstract: A chair is provided which comprises a mounting and latch member which is attached to the the chair arm to form a male assembly section and a female member which is attached to bottom of the seat support structure to provide a female section thereon. The female member has a slot for receiving and holding the mounting member and an attached arm so that the chair arm and the seat support structure are firmly and positively affixed to each other in a manner which also readily permits intentional removal. A resilient latch is resiliently and flexibly joined to the member for engaging the female member in order to prevent the male section from being withdrawn from the slot of the female member until the latch is disengaged.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: May 30, 1995
    Assignee: HON Industries, Inc.
    Inventor: Craig H. Schultz
  • Patent number: 5411316
    Abstract: Disclosed is single piece molded resin chair shell comprised of a seat member, a back member, and a pair of connecting torsion links. The back of the seat member and the bottom of the back member are separated by a collapsed elliptical shaped opening extending between the connecting torsion links. Each connecting torsion link is comprised of a curved, substantially U-shaped channel preferably provided with a plurality of web members projecting from the base of the channel whereby the connecting torsion links torsionally control the deflection of the back member relative to the seat member when pressure is applied against the back member by the user of the chair.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: May 2, 1995
    Assignee: Westinghouse Electric Corporation
    Inventors: Ross Lovegrove, Alvin D. Schmidt, Jeffrey D. Crawford
  • Patent number: 5395161
    Abstract: An armrest for a vehicle such as an automobile includes at least one concave core which is covered with an upholstery material. In one embodiment, the peripheral edge of a core is covered with a panel which secures the edge of the upholstery material to the core. In another embodiment, the core defines recesses on opposite sides and is covered by a multi-sectioned upholstered panel with sides which extend into the recesses. In yet another embodiment, a plurality of concave core sections are covered by an upholstery material and hinged together to define an armrest.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: March 7, 1995
    Assignee: Prince Corporation
    Inventors: David J. Spykerman, Gerald M. DeShaw, Michael J. Gregg, Randy E. Eldred
  • Patent number: 5372667
    Abstract: In a method of manufacturing a seat by using adhesives in which an air permeable skin material and a cushioning pad are bonded to each other by means of reactive hot-melt adhesives, the method comprises a step of coating adhesives to the cushioning pad, a step of provisionally assembling the skin material to the cushioning pad from the side of the adhesive coating surface, a step of setting the provisionally assembled cushioning pad and skin material to an attaching die, a step of applying heating by a heating die to the skin material and the cushioning pad attached in the attaching die assembling step from the side of the skin material and a step of applying cooling under pressure by a cooling die from the surface of the skin material subsequent to the heating step. A seat comprising a skin material and a cushioning pad can be molded with a seat frame by this method.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: December 13, 1994
    Assignee: Tokyo Seat Co., Ltd.
    Inventors: Akihiro Miyota, Shuichi Hashiguchi
  • Patent number: 5372668
    Abstract: A padded element of a motor-vehicle seat is made applying a cover onto a padding body by pressing with simultaneous application of steam. The covering fabric is provided on a lower mould with the back side thereof facing upwardly and the padding body is pressed against this back side by an upper mould. The upper mould includes a plurality of cannulae for steam injection, which project downwardly from the upper mould and are introduced through the padding body and have their steam outlet lower ends located inside this body adjacent to the surface thereof.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: December 13, 1994
    Assignee: Sepi S.p.A.
    Inventor: Roberto Bracesco
  • Patent number: 5370442
    Abstract: A rocker block for use in a rocking-type chair having a base assembly and an upholstered chair frame. The rocker block is adapted for mounting to a lateral side of the chair frame's lower frame structure and has an arcuate surface engageable with the base assembly for enabling rocking movement of the chair frame relative to the base assembly. The rocker block is a molded plastic component having an alignment arrangement formed thereon for engaging a portion of the lower frame structure. In addition, a first set of apertures are formed in the rocker block for receiving suitable fasteners so as to rigidly secure the plastic rocker block to the lower frame structure. Likewise, a second set of apertures are provided for receiving suitable fasteners to couple a rocker spring mechanism to the plastic rocker block. The plastic rocker block overcomes disadvantages associated with wooden components and provides the requisite rigidity and load-bearing strength to promote enhanced rocking action.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: December 6, 1994
    Assignee: La-Z-Boy Chair Co.
    Inventors: Jonathan R. Saul, Karl J. Komorowski, Larry P. LaPointe
  • Patent number: 5352022
    Abstract: A structural support shell for a tilt back chair has a back portion, a seat portion, and a compressible flex area extending between the back and seat portions in an integrally molded, one piece unit. The chain has a base with a recline control and pivoting back support lever. The seat portion of the shell is connected to the base and the back portion of the shell is connected to the back support lever. The compressible flex area provides for an ergonomic chair design having an effective axis of rotation between the back portion and the seat portion, which is located above the seat portion, forward of the back portion and generally adjacent to the hip joints of a seated user.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: October 4, 1994
    Assignee: Steelcase Inc.
    Inventor: Glenn A. Knoblock
  • Patent number: 5338099
    Abstract: A shell for a chair in which a bottom shell structure and a backrest shell structure are connected to supporting frame members. The bottom shell structure has a bottom portion and a partial backrest portion that are connected by a curved portion with plural slots. Sideways notches are connected to the extreme left and right slots and extend toward the left and right edges of the shell structure. The edges of the shell adjacent the notches are curved into a U shape. This construction increases the flexibility of the curved portion, while maintaining a significant portion of the unslotted material strength. A separate shell structure is attached to supporting bars and forms the remainder of the backrest support. This separate shell structure has a jagged cross sectional shape where substantially parallel projections and recesses form grooves which extend the length of the backrest shell.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: August 16, 1994
    Assignee: Itoki Co., Ltd.
    Inventors: Yuji Ishi, Toru Nagao, Harumatsu Sato
  • Patent number: 5336352
    Abstract: A device and method for forming a trim cover assembly for an automotive seat, wherein a top cover layer is stretched and pressed on a lower die by plural upper die elements in the outward direction and symmetrically relative to a central line of the lower die, to thereby place the top cover layer without clearance and slackened area therein, upon the lower die, and then a foam wadding and a wadding cover are fixed to the thus-pressed top cover layer. Thus, the resulting trim cove assembly is formed with a clear-cut or very distinct pattern of recessed grooves thereon.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: August 9, 1994
    Assignee: TACHI-S Co., Ltd.
    Inventor: Hisaya Tokura
  • Patent number: 5333934
    Abstract: A chair includes a base, a seat, a back pivoted to the base and an inner shell construction connecting a cushion assembly to the back. The shell includes a semi-rigid, flexible sheet having a back portion shaped to support a back area of an adult user. The back portion includes a central area and an upper area. A plurality of ribs are formed integrally with the sheet to stiffen the central area of the back portion for lumbar support yet permit the upper portion of the back portion of flex for improved freedom of movement of the upper back area of the user.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: August 2, 1994
    Assignee: Steelcase Inc.
    Inventor: Glenn A. Knoblock
  • Patent number: 5318346
    Abstract: A structural support shell for a tilt-back chair has a back portion, a seat portion, and a flexible compression zone extending between the back and seat portions in an integrally molded, one-piece unit. The chair has a base with a recline control and pivoting recline control lever. The seat portion of the shell is fixed to the base and the back portion of the shell is fixed to the recline control lever. The flexible compression zone provides a simplified construction for an ergonomic chair design having an effective axis of rotation between the back portion and seat portion which is located above the seat portion, forward of the back portion, and generally adjacent to the hip joints of a seated user.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: June 7, 1994
    Assignee: Steelcase Inc.
    Inventors: Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert M. Scheper, Daniel P. Beemer, James P. Steffens, Duane F. Nagel, Bruce M. Smith, Douglas A. Smith
  • Patent number: 5314240
    Abstract: A shell for a chair in which a bottom shell structure and a backrest shell structure are connected to supporting frame members such that when a light load is applied to the separate backrest shell the backrest shell will bend to accommodate the load, whereas when a heavy load is applied to the backrest shell the backrest bends and the supporting bars rock backwards. The bottom shell structure has a bottom portion and a partial backrest portion which are integrally formed on the same material and are connected by a curved portion with plural slots. Sideways notches are connected to the extreme left and right slots and extend toward the left and right edges of the shell structure. The edges of the shell adjacent the notches are curved into a U shape. This construction increases the flexibility of the curved portion, while maintaining a significant portion of the unslotted material strength. A separate shell structure is attached to supporting bars and forms the remainder of the backrest support.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: May 24, 1994
    Assignee: Itoki Co., Ltd.
    Inventors: Yuji Ishi, Toru Nagao, Harumatsu Sato
  • Patent number: 5303978
    Abstract: A replacement seat and back is disclosed for installation onto an existing chair which includes a unitary molded construction with a seat supporting a substantially upright back joined by an integral curved portion. The back is provided with a hollow interior with a slotted entrance adjacent to the curved portion so as to insertably receive the back of the existing chair. The seat includes an edge marginal downwardly depending attachment flange constituting a snap-on attachment for securing the seat to the existing seat. Preferably, the contour, color and overall shape of the replacement seat and back conforms with the contour, color and overall shape of the existing chair.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: April 19, 1994
    Assignee: GKM Int'l
    Inventor: Gordon W. Murrey
  • Patent number: 5297851
    Abstract: A chair fastening device for securing a metal bracket to a seat pan of a chair thereby enabling arms, legs or pedestal bases with or without control mechanisms to be attached to the chair. The fastening device comprises a slab base weld nut which includes a slab base head that is captured and retained by parallel raised ribs formed in the plastic of the seat pan, thereby preventing rotation of the slab base weld nut, and an elongated barrel which is inserted through angled holes in the plastic seat pan and peened over in order to form a rivet connection with the underside of the plastic seat pan. The elongated barrel of the slab base weld nut is counterbored and further includes internal threads adapted to receive a screw or bolt for use in securing a metal bracket to the plastic seat pan without inducing stress fractures in the plastic, thus creating a strong, secure attachment for chair arms, legs or pedestal bases.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: March 29, 1994
    Assignee: Westinghouse Electric Corp.
    Inventor: Hendrik R. Van Hekken
  • Patent number: 5292177
    Abstract: A modular seating system in which at least two supporting elements serve a dual function including that of providing a seat support and an additional function. Each such supporting element includes a hollow shape having vertical supporting walls and is formed from a cured organic polymer reinforced by an inert fibrous filler such as glass fibers. The elements support a seating component that includes a beam provided with a first plate affixed at each end in a plane perpendicular to the axis of the beam. The beam is affixed at each end and suspended by one of the supporting elements. Mechanical fasteners extend through the plates and through a vertical wall of said hollow shapes. A second reinforcing plate is provided on the inside of said vertical wall, and the mechanical fasteners also extend through the second reinforcing plates, causing the first and second plates to apply compressive force on the supporting wall. One or more seating units are attached to and supported by the beam.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: March 8, 1994
    Assignee: Krueger International, Inc.
    Inventors: Nicola Balderi, David R. Funk
  • Patent number: 5261726
    Abstract: A position adjustable headrest includes a bag-shaped outer skin member defining an inside space thereof. The outer skin member has first inwardly-bent end portions which are opposed to and in abutment with each other. The first inwardly-bent end portions define a first slit therebetween. The outer skin member has second and third slits formed therethrough which are opposed to each other and extend from longitudinally opposed ends of the first slit. A pad member made of plastic is covered by the outer skin member. The plastic is foamed and cured in the inside space so as to fill the inside space with the plastic and to press the first inwardly-bent end portions against each other, thereby closing the first slit tightly to prevent the plastic from leaking out through the first slit. Two stays project outwardly through the second and third slits respectively.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: November 16, 1993
    Assignee: Ikeda Bussan Co., Ltd.
    Inventor: Norio Yanagishita
  • Patent number: 5257853
    Abstract: A one piece plastic molded hollow armature is shown for a vehicle seat headrest which is formed with two halves. Each half is formed with a wall having a concave inner surface and corresponding convex outer surface and a peripheral edge. At a linear portion of the edges of each half, the halves are joined together by a flexible web forming a hinge. The two halves are rotated about a flexible web to close the armature upon a headrest support post and are sealed together in the closed position. Afterwhich, a foam padding is molded around the armature through a pour in place molding operation and covered with an upholstery member. A plurality of posts extend from one armature half through apertures in the other half. Once the armature is closed, it is permanently sealed by heat staking the posts to form enlarged rivet heads.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: November 2, 1993
    Assignee: Hoover Universal, Inc.
    Inventors: Robert D. Elton, Mark J. Symonik