Patents by Inventor Katsuki Asagiri

Katsuki Asagiri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030141398
    Abstract: A webbing retractor is provided. When assembled, due to a positional relationship which is such that insert-in portions are formed between a tubular portion of a lock base and a spool shaft, grooves are formed at the tubular portion and a portion of the spool shaft. An elastically deformable terminal end portion is formed at a stopper which is press-fit into an insert-in hole. In a state in which the stopper also is installed, not only press-in load in a thrusting direction, but also press-in load in a radial direction is applied between the lock base and a spool such that a structure is fixed.
    Type: Application
    Filed: November 13, 2002
    Publication date: July 31, 2003
    Applicant: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Tomonori Nagata, Kazuhiko Aihara, Katsuki Asagiri, Yasuho Kitazawa
  • Publication number: 20030098377
    Abstract: A webbing retractor is provided. A wire for increasing force limiter load spans between a spool and a lock base. A concave groove is formed in one end portion of the wire. A push nut of a lock plate cover engages with the concave groove and the wire is fixed. One engagement piece of the push nut is longer than other engagement pieces so as to push the one end portion of the wire toward the other engagement pieces.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 29, 2003
    Applicant: Kabushiki Kaisha Tokai-Rika-Denki-Sisakusho
    Inventors: Tomonori Nagata, Katsuki Asagiri, Yasuho Kitazawa, Kazuhiko Aihara, Kenji Gotou
  • Patent number: 6354529
    Abstract: A webbing take-up device for taking up and unwinding a webbing belt in a vehicle is provided that includes a rotatably mounted take-up shaft adapted for receiving and anchoring an end of the webbing belt, and rotatably urged in a direction for taking up the webbing belt; and a frame having a pair of leg plates opposing each other between which the take-up shaft extends. The frame further includes a connecting portion integrally extending from one leg plate to the other, and a fixing portion adapted for fastening to the vehicle, the connecting portion has a plurality of engraved portions on either side defined therein, and at least some of the engraved portions are formed as elongated holes or thinned portions having a longitudinal axis formed substantially along a direction in which tensile force is applied via the take-up shaft and leg plates when the webbing belt is unwound.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: March 12, 2002
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Katsuki Asagiri, Kenji Hoshino
  • Patent number: 6354528
    Abstract: An inexpensive webbing retractor is obtained by making a pretensioner and a lock device small and reducing the number of parts. A plurality of protrusions are formed on an inner peripheral portion of the bearing body, which pivotally supports a clutch portion. These protrusions are brought into linear contact with an outer peripheral portion of the clutch portion, whereby the bearing body pivotally supports the clutch portion indirectly via the protrusions. Since the protrusions are brought into linear contact with the clutch portion, the contact area becomes quite small. Hence, the protrusions are easily plastically deformed due to friction resistance with the clutch portion. Therefore, resistance that obstructs the rotation of the clutch portion becomes small, and gas pressure can be efficiently supplied for the rotation of a take-up shaft.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: March 12, 2002
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Tomonori Nagata, Seiji Hori, Akira Sumiyashiki, Katsuki Asagiri
  • Patent number: 6352213
    Abstract: A webbing retractor for webbing belt retraction and restraint of a vehicle occupant during sudden deceleration. In a preferred embodiment, the webbing retractor includes a spring, and is for connection to an axially rotatable shaft having a locking device. The locking device includes a rotator coaxially rotatable with the shaft and a locking mechanism. The spring resiliently urges the shaft to retract the webbing belt, which can be ordinarily unwound against the spring tension. During sudden deceleration, the locking mechanism is activated and limits or prevents unwinding of the webbing belt. The retractor includes wall portions provided at the rotator and the shaft, with the spring disposed between these portions. A hole for insertion of the spring is provided between the wall portions. The hole is sized such that the spring must be at least partially compressed for insertion therethrough. The arrangement facilitates insertion of the spring, and stable connection of the spring in the assembly.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: March 5, 2002
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Akira Sumiyashiki, Katsuki Asagiri
  • Patent number: 6318585
    Abstract: The present invention discloses a cover mounting structure for a webbing retractor. This structure relates to a mounting structure of a cover mount and a cover which hold a power spring used for taking up a webbing. By inserting a claw of the cover into an engagement hole portion of the cover mount, a claw on a folded member in which the engagement hole portion is formed enters into a hole portion of the engagement portion, so that the engagement portion is anchored by the claw. That is, the cover can easily be fixed onto the cover mount. Moreover, the engagement portion has elasticity and is constantly urged in the direction of withdrawal by the restoring force, so that the cover does not generate strange sounds.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: November 20, 2001
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Katsuki Asagiri, Tomonori Nagata
  • Patent number: 6305633
    Abstract: There is provided a webbing take-up device of which weight can be reduced while maintaining lock strength. A single lock plate which is engaged with an internal gear ratchet at the time of sudden deceleration of a vehicle is held in an accommodating portion formed in a holding portion of a base lock. At the time of sudden deceleration of a vehicle, the lock plate is moved by being guided in a guide hole of a V gear and is engaged with the internal gear ratchet. Further, reaction force generated in the above-described engagement is utilized and the holding portion of the base lock is caused to contact by pressure the internal gear ratchet and the base lock plastically deforms and is thereby engaged with the internal gear ratchet. Accordingly, the base lock and the internal gear ratchet are in a locked state at two facing locations on the base lock in a radial direction of the base lock.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: October 23, 2001
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Katsuki Asagiri, Akira Sumiyashiki
  • Patent number: 5421615
    Abstract: A seat belt apparatus in which a hook is formed on a boot covering an anchor plate. Accordingly, the hook can be engaged with an opening of a tongue plate during an assembly stage of a vehicle. As a result, the anchor plate can be held by the tongue plate, and it is therefore possible to prevent surface of a center pillar of a vehicle, which surface faces a vehicle compartment, from being damaged by the anchor plate.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: June 6, 1995
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Katsuki Asagiri, Yasuhiko Kouda
  • Patent number: 4850610
    Abstract: Disclosed is an automatic seatbelt apparatus which is capable of automatically applying, or canceling the application of, a webbing around an occupant of a vehicle, wherein a limit switch for detecting that a slider, which guides the webbing along a guide rail between a stopping position on the forward side and a stopping position on the rearward side of the vehicle, has arrived at the stopping position on the forward side of the vehicle is disposed in such a manner as not to hamper any further movement of the slider toward the front of the vehicle. Accordingly, the stopping position of the slider on the rearward side of the vehicle can be changed regardless of the stopping position at which the slider is located.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: July 25, 1989
    Assignees: Kabushiki Kaisha Toka-Rika-Denki-Seisakusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsuki Asagiri, Yuji Nishimura, Takashi Kawaharazaki, Noritada Yoshitsugu
  • Patent number: 4664334
    Abstract: A tension apparatus for tensing a webbing of a seatbelt system for a vehicle in an emergency situation of the vehicle, thereby allowing the webbing to be tightly fitted to the occupant's body. When an emergency situation of the vehicle occurs, a relatively large spiral spring for rotating a webbing take-up shaft with a relatively strong force so that the webbing is wound up is connected to a worm wheel. A worm which is subjected to a force for winding up the large spiral spring is movable between a position at which it is engaged with the worm wheel and a position at which it is separated therefrom. Accordingly, the worm is engaged with the worm wheel only when the large spiral spring is to be wound up, and there is no risk of the worm obstructing the operation of the large spiral spring at the time of an emergency situation of the vehicle.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: May 12, 1987
    Assignee: Kabushiki Kaisha Toka-rika-denki-seisakusho
    Inventors: Katsuki Asagiri, Takashi Kawaharazaki