Abstract: A writing instrument according to an embodiment of the invention including, a chuck that chucks a writing lead, wherein the chuck includes a first chuck pawl which comes into point contact or line contact with the writing lead to press the writing lead so as to apply first contact stress to the writing lead; and a second chuck pawl which presses the writing lead so as to apply, to the writing lead, second contact stress that is lower than the first contact stress, and the first contact stress is configured such that, when a prescribed impact is applied to the writing lead, a contact portion of the writing lead subjected to the first contact stress fractures and absorbs the prescribed impact.

Abstract: A writing instrument according to an embodiment of the invention including, a chuck that chucks a writing lead, wherein the chuck includes a first chuck pawl which comes into point contact or line contact with the writing lead to press the writing lead so as to apply first contact stress to the writing lead; and a second chuck pawl which presses the writing lead so as to apply, to the writing lead, second contact stress that is lower than the first contact stress, and the first contact stress is configured such that, when a prescribed impact is applied to the writing lead, a contact portion of the writing lead subjected to the first contact stress fractures and absorbs the prescribed impact.

Abstract: A liquid applying tool which can create pressurizing action with a simple structure and without any labor at the time of using the liquid applying tool, and allows liquid to be smoothly fed to a tip end of a liquid applicator member with the assistance of the pressurizing action.

Abstract: A mechanical pencil is including a tubular shaft, a chuck unit movably arranged in the shaft, a front rotary element adapted to be moved rearward as the unit is moved rearward, a rear rotary element adapted to be moved rearward as the front rotary element is moved rearward, a conversion means for causing the rear rotary element to rotate in a normal rotational direction as the rear rotary element is moved rearward and allowing the rear rotary element to rotate in a reverse rotational direction as the rear rotary element is moved forward, a normal directional rotation transmitting means for allowing the front rotary element to be rotated in the normal rotational direction and the rear rotary element to be idly rotated, and a reverse directional rotation restricting mechanism allowing the normal directional rotation of the front rotary element but preventing the reverse directional rotation of the front rotary element.

Abstract: A knock-type propelling includes a body storing a medium therein and having a tip end opening for allowing the medium to be propelled therefrom, a propelling member slidably arranged in the body and capable of propelling the medium toward the opening, the propelling member being provided with a forward/rearward extending prolongation portion having engaging-stop portions formed at fixed intervals in a forward/rearward direction, a knock member provided at the body so as to be reciprocably moved relative to the body, a thrusting member arranged in the body so as to be moved forward by knocking the knock member, and having an engagement portion engageable with the engaging-stop portions, and a detent member fixedly arranged in the body and engageable with the propelling member.

Abstract: A needle threading device is disclosed which comprises a first mechanism having a hole for receiving a needle and a slit for receiving a thread, a second mechanism having a threader pin and pivotally supported by the first mechanism so as to be pivotable between a first position and a second position different from the first position, the threader pin enabling the thread to pass through an eye of the needle when the second mechanism is pivoted to the second position from the first position, a first biasing member urging the second mechanism to the first position, an operating member causing the second mechanism to be pivoted to the second position against an action of the first biasing member, and a second biasing member urging the operating member and the second mechanism in a direction in which they are spaced away from each other.

Abstract: A stick-shaped material propelling container which comprises a barrel having a spiral groove formed in its inner peripheral surface, a guide tube having slits and inserted in the barrel so as to be rotatable relative to the barrel and axially unmovable, and a stick-shaped material holding member provided with side plates and protrusions and slidably inserted in the tube with the protrusions being engaged with the grooves through the slits. The groove has a structure for causing rear end portions of the side plates to come closer to each other and for causing tip end portions of the side plates to be separated radially outward from each other according to the mutually approaching movements of the rear end portions of the side plates, when the protrusions are slid along a tip end portion of the groove according to relative rotation of the barrel and the tube.

Abstract: A writing instrument includes a cylindrical barrel and an end cover having a robust structure and attached to the cylindrical barrel. The end cover includes a cylindrical base attached to a rear end portion of the cylindrical barrel, a cover body fitted around an outer peripheral surface of the cylindrical base, a stopper ring fitted around an outer peripheral surface of at least a fitted portion between the cylindrical base and the cover body, and a cooperation structure for enhancing a holding force which is exerted on the cover body by the cylindrical base and the stopper ring and for joining the cylindrical base, the cover body, and the stopper ring together to form a joined unit which includes the cylindrical base, the cover body and the stopper ring.

Abstract: A stick-shaped material propelling container is disclosed which comprises a barrel having a spiral groove formed in its inner peripheral surface, a guide tube having slits and inserted in the barrel so as to be rotatable relative to the barrel and axially unmovable, and a stick-shaped material holding member provided with side plates and protrusions and slidably inserted in the tube with the protrusions being engaged with the grooves through the slits. The groove has a structure for causing rear end portions of the side plates to come closer to each other and for causing tip end portions of the side plates to be separated radially outward from each other according to the mutually approaching movements of the rear end portions of the side plates, when the protrusions are slid along a tip end portion of the groove according to relative rotation of the barrel and the tube.

Abstract: A mechanical pencil comprises a shaft cylinder (1), a lead pipe (3) axially movably inserted into the shaft cylinder (1) and biased in a retract direction, and a chuck body (45) provided within the shaft cylinder (1) in front of the lead pipe (3) for releasably griping a writing lead (S). The lead pipe (3) and the chuck body (45) are separated, the lead pipe (3) is inserted into the shaft cylinder (1) with axial movement thereof being permitted and circumferential rotation thereof being restricted, and the chuck body (45) is positioned within the shaft cylinder (1) in front of the lead pipe (3) so as to be movable in an axial direction and circumferentially rotatable. A lead rotation mechanism (5) is provided between a back part of the chuck body (45) and a front part of the lead pipe (3).

Abstract: A pivotal manipulation type writing instrument includes a pivotable body pivotable relative to a container main body and a writing element ejecting unit configured to actuate and move a slider to urge a writing element to be ejected from the container main body as the pivotable body is pivoted. The pivotable body is pivotable relative to the container main body by 360° in either left or right direction, and the writing element can be returned to a retracted state in which the writing element is retracted into the container main body from an ejected state in which the writing element is ejected from the container main body by moving the pivotable body in either left or right direction.

Abstract: There is provided a liquid applicator allowing a liquid to be easily replenished and replaced, as well as capable of containing a large amount of liquid. The liquid applicator includes a main body provided with a tank inside thereof, a tip shaft that is coupled to the tip end side of the main body, and a brush that is fixed in the tip shaft and projecting from the tip end of the tip shaft. A liquid may be sucked into a tank by releasing the coupling of the main body and the tip shaft, sinking a tip end opening of the main body in the liquid, and sliding a sliding cylinder attached to the rear portion of the main body.

Abstract: A needle thread passing device is capable of being constructed in a small size for easy storage. A needle receiving member 34 has a needle insertion hole 34c and a thread insertion slit 34e forming an angle with the needle insertion hole 34c. A needle threader member 42 is movable between positions away from and close to the needle receiving member 34 and has a needle threader pin 48b that can push a thread inserted through the thread insertion slit 34e into a needle eye 52a of a needle 52 inserted into the needle insertion hole 34c when the needle threader member 42 moves from the position away from the needle receiving member 34 to position close thereto. A cover 32 can move with respect to a main body 30 containing the needle receiving member 34. The needle threader member 42 is constantly biased toward the position away from the needle receiving member 34.