Abstract: A door hinge for an automobile includes a first bracket fixed to a body, a second bracket fixed to a door, and a hinge pin, the first bracket including a base plate portion having a bolt hole, a pair of arm plate portions standing up from upper and lower edges of one end part, on the door side, of the base plate portion and supporting the hinge pin, and a pair of rib portions extending from the arm plate portion and standing up from the upper and lower edges of the base plate portion so as to oppose each other with the bolt hole interposed therebetween, wherein opposite end parts, perpendicular to the extending direction of the rib portion, of the base plate portion are open, and the rib portion is formed so as to have a thickness larger than a thickness of the arm plate portion.

Abstract: A door checker includes a stopper provided to a tip portion of a check lever and defining a door opening limit by engaging with stopper surfaces provided to an outer surface of a peripheral edge of a through-hole in a support body. The stopper is formed from paired first stopper portions engageable with paired first stopper surfaces arranged side-by-side with the through-hole therebetween, and paired second stopper portions engageable with paired second stopper surfaces. The first stopper portions are formed from metal-made protrusions integrally projecting from opposite sides of a tip portion of a lever core plate, and projecting from an outer surface of a synthetic resin-made covering portion. The second stopper portions are formed from synthetic resin-made portions of the outer surface located between the first stopper portions and swollen on opposite sides in a direction orthogonal to an arrangement direction of the first stopper portions.

Abstract: In a door checker for automobile which is applicable to vehicles having different full open angles of doors, and which makes no chattering noise by vibration, a free end portion of a check lever plate is provided with a core plate exposed portion where a core plate is exposed from a cover layer, a full open stopper mechanism includes: a stopper pin fitted in the core plate exposed portion, the stopper pin having anti-falling expanded portions; a stopper plate swingably supported on the stopper pin; and a cushion member supported by the stopper plate, and configured to cushion an impact of full opening of the door by receiving a case, and a pressing piece is provide integrally and continuously to the cover layer, the pressing piece configured to press the cushion member toward the stopper pin to thereby keep the stopper plate in contact with the stopper pin.

Abstract: In a door checker for automobile which is applicable to vehicles having different full open angles of doors, and which makes no chattering noise by vibration, a free end portion of a check lever plate is provided with a core plate exposed portion where a core plate is exposed from a cover layer, a full open stopper mechanism includes: a stopper pin fitted in the core plate exposed portion, the stopper pin having anti-falling expanded portions; a stopper plate swingably supported on the stopper pin; and a cushion member supported by the stopper plate, and configured to cushion an impact of full opening of the door by receiving a case, and a pressing piece is provide integrally and continuously to the cover layer, the pressing piece configured to press the cushion member toward the stopper pin to thereby keep the stopper plate in contact with the stopper pin.

Abstract: A checker-equipped door hinge device for use in a vehicle includes a check force generating mechanism having a central shaft fixed to a female bracket, a cylinder block fixed to a male bracket and having a cylinder portion, a piston slidably fitted into the cylinder portion, a detent roller supported by the piston, a check spring for urging the piston, and a detent groove provided on an outer peripheral face of the central shaft and with which the detent roller is engaged by urging force of the check spring. The male bracket includes male arm portions for sandwiching the cylinder block inside female arm portions, and a male base portion connected to the male arm portions. The male arm portion is fixedly secured to the cylinder block, and opposite end parts of the central shaft extending through the male arm portion are fixedly secured to the female arm portion.

Abstract: A door hinge device for vehicle includes a checking-force generating mechanism provided between an inner cylinder and an outer cylinder. The checking-force generating mechanism has a holding member attached to the outer cylinder, an elastic member biasing the holding member toward the inner cylinder, a detent roller being held in a holding groove of the holding member, and detent grooves that are provided in an outer peripheral surface of the inner cylinder and are capable of holding the door at a plurality of positions where the door should be stopped by an engagement with the detent roller. The detent roller applies a compression load to the elastic member even in a state where the detent roller is engaged with any of the detent grooves. An assembly groove is provided in the outer peripheral surface of the inner cylinder and allows the detent roller to be inserted into the holding groove in a state where the holding member is in contact with the outer peripheral surface of the inner cylinder.

Abstract: A checker-equipped door hinge device for use in a vehicle is includes a check force generating mechanism having a central shaft fixed to a female bracket, a cylinder block fixed to a male bracket and having a cylinder portion, a piston slideably fitted into the cylinder portion, a detent roller supported by the piston, a check spring for urging the piston, and a detent groove provided on an outer peripheral face of the central shaft and with which the detent roller is engaged by urging force of the check spring. The male bracket includes male arm portions for sandwiching the cylinder block inside female arm portions, and a male base portion connected to the male arm portions. The male arm portion is fixedly secured to the cylinder block, and opposite end parts of the central shaft extending through the male arm portion are fixedly secured to the female arm portion.

Abstract: A checker-equipped door hinge device for vehicle includes: a first bracket fixed to one of a body and a door; a second bracket fixed to another one of the body and the door; a hinge pin connecting the first and second brackets to each other, and allowing the brackets to be relatively rotatable; an inner cylinder connected integrally to the first bracket and disposed coaxially with the hinge pin; an outer cylinder connected integrally to the second bracket and disposed so as to surround the inner cylinder in a manner of being rotatable relative to the inner cylinder; and a checking-force generating mechanism provided between the inner cylinder and the outer cylinder, the checking-force generating mechanism generating a checking force against the door at a predetermined opening position of the door, wherein an inner peripheral surface and an outer peripheral surface of the outer cylinder are eccentric to each other, so that a thick wall portion having a large distance between the inner peripheral surface and th

Abstract: An automobile door checker includes a case secured to a door, a check plate that runs movably through the case and is pivotably supported on a body, a detent member fitted into and retained by the case and working in cooperation with a detent face of the check plate, and a resilient member that is made of a resilient material and is provided in a compressed state in a housing chamber defined between an outer end face of the detent member and an inner end face of the case, wherein the resilient member is formed so that it substantially fills the housing chamber, the resilient member is provided with a hole portion that allows resilient deformation of the resilient member, the hole portion being sealed by the outer end face and the inner end face, and a half of the resilient member on the outer end face side and a half on the inner end face side are symmetrical.

Abstract: A door hinge device for vehicle includes a checking-force generating mechanism provided between an inner cylinder and an outer cylinder. The checking-force generating mechanism has a holding member attached to the outer cylinder, an elastic member biasing the holding member toward the inner cylinder, a detent roller being held in a holding groove of the holding member, and detent grooves that are provided in an outer peripheral surface of the inner cylinder and are capable of holding the door at a plurality of positions where the door should be stopped by an engagement with the detent roller. The detent roller applies a compression load to the elastic member even in a state where the detent roller is engaged with any of the detent grooves. An assembly groove is provided in the outer peripheral surface of the inner cylinder and allows the detent roller to be inserted into the holding groove in a state where the holding member is in contact with the outer peripheral surface of the inner cylinder.

Abstract: A checker-equipped door hinge device for vehicle includes: a first bracket fixed to one of a body and a door; a second bracket fixed to another one of the body and the door; a hinge pin connecting the first and second brackets to each other, and allowing the brackets to be relatively rotatable; an inner cylinder connected integrally to the first bracket and disposed coaxially with the hinge pin; an outer cylinder connected integrally to the second bracket and disposed so as to surround the inner cylinder in a manner of being rotatable relative to the inner cylinder; and a checking-force generating mechanism provided between the inner cylinder and the outer cylinder, the checking-force generating mechanism generating a checking force against the door at a predetermined opening position of the door, wherein an inner peripheral surface and an outer peripheral surface of the outer cylinder are eccentric to each other, so that a thick wall portion having a large distance between the inner peripheral surface and th

Abstract: A door hinge with a checker include: a first hinge arm and a second hinge arm which are connected to be relatively rotatable by a hinge pin; a check cam which is provided at the first hinge arm and has positioning recessed portions on its outer peripheral surface; a roller which moves on the outer peripheral surface of the check cam and engages with the positing recessed portions in accordance with relative rotation of the first and second hinge arms; and a torsion spring which resiliently urges the roller toward the outer peripheral surface of the check cam. A torsion shaft portion is connected via a reinforcing member to a free end part of a movable arm portion in the torsion spring. Thus, shaking of the door when the roller resiliently engages with the positioning recessed portion of the check cam by torsional load of the torsion spring is prevented.

Abstract: A door checker includes: a check lever 6 formed, at the proximal end thereof, with a boss 10 connected to a bracket 7 via a shaft 8; a case 1 having through holes 4, 5 through which the check lever 6 passes; and shoes 19 which are in sliding contact with detent surfaces 9 of the check lever 6 in the case 1. The check lever 6 is provided, at the distal end thereof, with a full open stopper 12 which comes into contact with an outside surface of the case 1 to define a full open position of a door D. The full open stopper 12 is formed integrally with the check lever 6. The boss 10 is formed so as to be capable of passing through the through holes 4, 5 in the case 1 and between the pair of shoes 19. Therefore, the door checker for an automobile can be assembled while eliminating a process of installing the full open stopper to the check lever.

Abstract: In a pantagraph-type jack, a lower reinforcement plate is integrally provided at an inner end of a bottom plate portion of each lower arm so as to extend therefrom in parallel with a corresponding lower pivot, and a lower recess is formed in an upper surface of a flange portion of each lower enforcement plate so that the lower recess receives a part of an outer peripheral surface of a threaded rod when a load bearing platform is lowered to a lowermost position. Also, an upper reinforcement plate having the same structure is integrally provided at an inner end of an upper plate portion of each upper arm. Thus, it is possible to firmly restrict inward falling of side plate portions of the lower arms and upper arms, and to lower the load bearing platform to a lowermost position without interference by the above-described reinforcement structure.

Abstract: In a pantagraph-type jack, inner bosses are integrally formed on inner side surfaces of opposite side plate portions of each lower arm and each upper arm so as to support lower pivots and upper pivots, respectively; outer bosses are integrally formed on outer side surfaces of the opposite side plate portions of each lower arm and each upper arm so as to support the lower pivots and the upper pivots, respectively; and the outer bosses rotatably contacts inner side surfaces of opposite side plate portions of each of the base and the load bearing platform. Thus, a frictional torque is minimized between the lower arms and the base as well as between the upper arms and the load bearing platform when the load bearing platform is raised and lowered, and a support strength of the lower arms with respect to the lower pivots and a support strength of the upper arms with respect to the upper pivots are enhanced.

Abstract: In a door checker for an automobile, including: a case; a check plate which movably extends through the case and which has on its opposite sides ball guide grooves extending in a lengthwise direction; a pair of ball holders accommodated in the case; a pair of balls which are retained in hemispherical ball housings of the ball holders and which are rollably engaged in the ball guide grooves; and a check spring for biasing the ball holders toward said check plate; and a recess for retaining a grease on an inner surface of each of the ball housings and for accommodating a dust therein is formed in the inner surface of each of the ball housings. Thus, the sticking of the balls due to an entering dust can be prevented, and the smooth rotation and rolling of the balls can be ensured over a long term.

Abstract: In order to ensure that a door can be retained at least in a fully opened position and a slightly opened position by the combination of a smaller number of exclusive parts with a hinge connecting a body and a door in a door retention device used in a process of manufacturing an automobile, the door retention device includes a torsion spring 23 mounted to a first hinge arm 1 of a door hinge H, and a cam 20 formed on a second hinge arm 2 of the door hinge H. The cam 20 is provided with a first positioning recess 20a and a second positioning recess 20b in which a movable arm portion 23c of the torsion spring 23 is brought into engagement in the fully opened position F and the slightly opened position S of the door D, and a projection 20c disposed between the first and second positioning recesses 20a and 20b and adapted to apply a load to the movable arm portion 23c in accordance with the turning of the door D.

Abstract: A door checker for an automobile includes: a check lever 6; a case 1 through which the check lever 6 passes and which is fixed to a door D; and a shoe 19 which is housed in the case 1 and in sliding contact with detent surfaces 9 of the check lever 6. The check lever 6 includes: a core plate 6a made of a steel plate; and a synthetic resin skin 6b which is mold-connected to a peripheral surface of the core plate 6a. A full open stopper 12 for defining a full open position of the door D is provided in a distal end portion of the check lever 6. The full open stopper 12 includes: an anchor member 14 which passes through an anchor hole 13 formed in a distal end portion of the core plate 6a; and a bulging portion 15 formed integrally with the skin 6b so as to wrap the anchor member 14. Therefore, the structure of the full open stopper is simplified, and a process of installing the full open stopper can be eliminated from assembly.

Abstract: A door checker for an automobile includes: a case fixed to one of a body and a door of the automobile; a check lever movably penetrating the case, oscillatably axis-supported by the other of the body and the door, and provided with a rack on one side face; a pinion meshed with the rack and rotatably housed in the case; a movable shoe housed in the case so that the movable shoe can be engaged with and disengaged from a tooth portion of the pinion; and a check spring for biasing the movable shoe in the direction of engagement with the pinion. The door is held at an arbitrary opening degree by an engaging force of the movable shoe with the pinion due to a biasing force of the check spring. Thus, it is possible to easily set a large number of steps in an opening degree for holding the door.

Abstract: An automobile door checker includes a check plate, a shoe holder housed in a case, a shoe that is held by the shoe holder and the shoe slides on the check plate accompanying relative movement between the case and the check plate, and a check spring that resiliently urges the shoe holder toward the check plate in order to press the shoe against the check plate. The shoe is axially supported in the shoe holder so that the shoe can swing from a neutral position to forward and backward swing limits. The shoe is provided with return-to-neutral means for exhibiting a return force that makes the shoe return to the neutral position. The contact area between the shoe and the check plate is arranged so that the frictional force in the contact area becomes the smallest when the shoe reaches the shoe swing limits.