Abstract: A latch device includes a latch body provided in a housing so as to be movable in an inserted direction in which the latch body is inserted into the housing, and in a withdrawn direction in which the latch body is withdrawn from the housing, and being continuously urged in the withdrawn direction. Further, circulatory cam grooves are also provided in the housing, and a supporting member is inserted into the circulatory cam grooves and circulates and moves in the circulatory cam grooves so as to hold the latch body at an inserted state position and a withdrawn state position.

Abstract: A lock mechanism for causing an openable member such as a cover or a door of a box or the like to engage with or disengage from a main body as the openable member is pressed, and a latch device for retaining a latch body in the housing in a pushed-in state or in a withdrawn state. The center of rotation of each of a pair of arms of the latch device is formed on substantially the same line as a line of action of a force acting on a retaining surface of each of the arms for retaining a striker.

Abstract: A lock mechanism for causing an openable member such as a cover or a door of a box or the like to engage with or disengage from a main body as the openable member is pressed, and a latch device for retaining a latch body in the housing in a state in a pushed-in state and in a withdrawn state. The center of rotation of each of a pair of arms of the latch device is formed on substantially the same line as a line of action of a force acting on a retaining surface of each of the arms for retaining a striker. A fitting hole, a guide hole, a slanted guide surface, and a fitting hole are provided to allow a tracing member of the latch device to be fitted from outside the housing at the time of assembling the tracing member to the housing.

Abstract: A latch device including a pair of circuital cam grooves having different planar shapes formed in opposite surfaces of a latch body. A guide lever is inserted into the circuital cam grooves so that tips of tracing portions of the guide lever do not contact bottom surfaces of the circuital cam grooves. The circuital cam grooves have a heart-shaped projection and a triangular projection, such that torsion is generated in the tracing portions because of differences in configurations of the circuital cam grooves. A restoring force of the guide lever acting opposite the torsional force causes the tracing portions to circulate in a given direction. As a result, compared with conventional latch devices, fewer components may be used. Wear on the circuital grooves of the latch body can be prevented. When the torsional force is eliminated, the tracing portions move in a direction where the groove wall surfaces are not provided.

Abstract: Disclosed herein is a card holder for holding a card. The card holder comprises a card holding member, a latch and an urging member disposed inside a card case body and a hook provided on one of first and second plate-like members of the card base body, characterized in that an inserted card is pressed against the urging force of an urging member so as to be held in a card accommodating position, and the card is further pressed from the card accommodating position so as to release the same from being held at the card accomodating position, thereby forcing out the card into a card insertion slot of a card case body by the urging force of the urging member.

Abstract: A lock device for a case having a body and a lid includes a latch member, a lock member, a lock-releasing mechanism and a damper. The latch member is pivotably mounted upon one of the body and lid components of the case and normally biased in the unlocking direction. The lock member is mounted upon the other one of the body and lid components of the case for releasably receiving and locking the latch member when the body is in the state of being closed by means of the lid and for retaining the locked state of the latch member. The lock-releasing mechanism is provided upon the lock member for unlocking the lock member. The damper is engaged with the latch member for damping the movement of the latch member under the influence of the biasing force in the unlocking direction of the latch member.

Abstract: A screw grommet includes a flange having a screw insertion hole and a sack-like body integral with the flange. The sack-like body is inserted through a hole formed within an object to be fastened and has an inner axial screw guide channel communicating with the screw insertion hole for receiving and guiding an inserted screw, and a plurality of hill-like portions formed upon the outer periphery thereof and projecting axially while leaving a gap between the upper end of each hill-like portion and the lower surface of the flange. The gap serves as a fulcrum point about which the hill-like portions can in effect pivot in order to generate a wedging action upon the object being fastened when the screw is inserted within the screw guide channel.

Abstract: A nut type plastic fastener has a vertical penetrating space and a plurality of holding pieces facing one another with the space. The facing surfaces of the holding pieces are provided with ridges for engagement with threads of a stud. The lower portions of the holding pieces are connected by means of small-thickness flexible pieces to the lower portion of the fastener body defining the space. When a stud is passed through a gap defined between the holding pieces, the holding pieces are separated from one another as a result of the flexing of the flexible pieces.

Abstract: A cord lock includes a pair of main bodies for permitting intermediate portions of a cord to be thrust therethrough and a pair of lock members mounted upon the main bodies respectively so as to develop a predetermined resisting force against longitudinal movement of the intermediate portions of the cord. Each of the main bodies is provided with an engaging projection and an engaging recess which permits the counterpart engaging projection to engage therein. The main bodies each having the engaging projection and recess are formed with identical configurations.

Abstract: A latch device has a rotary cam axially supported by one of a stationary cylinder and a sliding rod which effect relative reciprocal movement. The cam has reverse rotation preventing means and is engaged in the course of its rotation by associated portions provided on the other of the stationary cylinder and the sliding rod to temporarily restrict the movement of the sliding rod in one direction during the relative reciprocal movement.

Abstract: A locking device is disclosed, which is locked when a spike secured to the back surface of a door is pushed once and is released when the spike is pushed once again. The locking device comprises a case open at one end and having a wall provided with a spring portion having an end projection, a lock member slidably accommodated in the case for movement away from and toward the open end and having a pair of locking pawls, a spring for urging the lock member toward the open end of the case at all times, and a cam member provided between the lock member and an end wall of the case and having a lateral ridge formed on one surface and received in a lateral groove of the lock member, the cam member being provided on the other surface with a uni-directional looped path, the projection of the case being slidably engaged in the path. When the lock member is pushed, the projection of the base is caused to trace the looped path to bring about a locked state and an unlocked state.

Abstract: A first push of an engaging piece moves a projecting portion provided on a case along a one-way passage loop provided on one face of a cam plate while simultaneously moving the cam plate transversely, guiding the projecting portion into an engaging portion provided in said passage, locking the device. Pushing the engaging piece a second time disengages the projecting portion from the engaging portion and moves the cam plate transversely back to its original position, unlocking the device.

Abstract: Disclosed is a plastic screw grommet, comprising a flange head containing a through hole for insertion of a screw at the center thereof, a pair of insertion leg members perpendicularly extending downwardly from the undersurface of said flange head opposite each other with reference to said through hole and having engaging projections formed one each on the outer surfaces thereof, a pair of leaves adapted to avoid restraining the movement of said leg members and stretched one each to integrally connect the opposed edges of the leg members so as to form a substantially cylindrical enclosure in conjunction with the leg members, whereby the leading end of a screw driven through said flange head is wrapped in said cylindrical enclosure.

Abstract: Disclosed is a plastic cord clamp which comprises a pair of opposed arcuate holding members having the lower ends thereof connected with each other through an intervening thin-walled hinge portion to form a roundly bent main clamp body, said hinges portion being flexible to the extent of allowing said opposed holding members to diverge or converge freely about said hinge portion as the fulcrum, mutually engageable pawls formed one each at the upper ends of said pair of holding members and a pair of leg members formed one each at the lower ends of said pair of holding members and adapted to protrude outwardly therefrom tangentially to the clamp body in opposite directions, whereby said two leg members converge when said upper ends of holding members are opened to admit a cord between the two holding members and the leg members diverge and come into fast engagement with the edges of matching perforations bored in a holder plate when said engaging pawls are closed in on the admitted cord and brought into mutual

Abstract: A linking device is disclosed which comprises a connecting strip, a main trunk section formed integrally at each end of said connecting strip and an engaging member formed by extending the forward perpendicular end of said each main trunk section into an inserting and engaging portion integrally incorporating a hook element of the shape of a hook.

Abstract: Disclosed is a grommet made of a synthetic resin, which comprises two members adapted to be coupled into embracing engagement, said members each provided at the opposed end portions thereof with a pair of inclined protrusions of which the directions of inclined edges, when observed in front elevation, cross each other. When said two members of the grommet are coupled with each other, therefore, said inclined protrusions closely approach each other at both said end portions so as to firmly grip a cord passed between the two members and said close mutual approach of the inclined protrusions causes the cord to twist itself between one end portion and the other end portion of the coupled members because of said crossed relationship of the directions of the inclined edges of said protrusions. This twist in the cord serves the purpose of preventing the cord from freely moving in the direction of its length.