JP5019940B2 - Crescent tablets - Google Patents

Description

  The present invention relates to a crescent lock for locking inner and outer shoji.

  This type of crescent lock includes a crescent receiver attached to the outer shingles, a base portion attached to the inner shingles, and a lock that is released from the locking position of the crescent receiver on the base portion. Some include a crescent hanging portion that is rotatably provided at a stop releasing position, and a lock unit that locks the crescent hanging portion while being locked to the crescent receiver.

  As the locking means, there are a locking mechanism that locks the crescent hook portion with the crescent receiver and a locking mechanism that is locked by manual operation (see Patent Document 1).

Japanese Utility Model Publication No. 7-40948

  However, the crescent lock can rotate the crescent hook even when the outer and inner pouches are not in the normal closed position (so-called half-open state). For this reason, when the outer cover or inner pouch is opened and closed in a state where the crescent hook is not locked to the crescent receiver, the crescent hook may collide with the outer cover and be deformed or damaged.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a new crescent lock capable of preventing the crescent hanging portion from being hung.

In order to solve the above-described problem, the crescent lock of the present invention is a crescent hook portion that is provided on a base portion so as to be rotatable from a locking position locked to a crescent receiver to a locking release position where the locking is released. And a collar hanging prevention mechanism for preventing the crescent hanging portion from hanging on the collar, and the collar hanging preventing mechanism is provided around the axis of the crescent hanging portion of the base portion and is locked to the inner wall surface thereof. An arcuate guide hole provided with a convex part and a rod-like body rotatably provided around the axis of the crescent hanging part, and one end in the length direction thereof is movably fitted into the guide hole A lever having a contact portion that is provided at the other end portion in the length direction of the movable piece and that can contact the crescent receiver before the crescent hanging portion when the crescent hanging portion rotates. A first urging means provided between the abutting portion of the lever and the shaft portion of the crescent hanging portion and urging the abutting portion of the lever in a direction away from the shaft portion; When the lever and the movable piece move along the guide hole along with the rotation of the crescent hanging portion, when the contact portion of the lever contacts the crescent receiver, the contact portion is Displacement in a direction approaching the shaft portion against the urging force of the urging means, so that the lever and the movable piece rotate so that one end of the movable piece does not contact the locking projection. If the contact portion of the lever does not come into contact with the crescent receiver while changing the direction, one end of the movable piece comes into contact with the locking projection, and the crescent hook is rotated. The handle to be moved and the handle in the unlocked position. And a locking mechanism that is provided in the handle so as to be able to project toward the base portion, and a second mechanism that urges the locking member in the projecting direction. Urging means, a second locking recess provided in the base portion and into which the locking member fits when the crescent hanging portion is positioned at the locking release position, and the handle in the handle An operating member provided so as to be movable in a direction substantially perpendicular to a protruding direction of the locking member, and a tip portion protruding so as to be operable from the handle; and an operation movement of the operating member for the second movement of the locking member And a motion conversion means for converting movement into an anti-projection direction against the urging force of the urging means.
In this case, when the handle is rotated and the crescent hooking portion is positioned at the locking release position, the locking member is moved to the second locking recess of the base portion by the biasing force of the second biasing means. Is fitted and locked. In this way, the handle and the crescent hook are locked at the locking release position. When the operation member is operated, the movement conversion means converts the operation movement of the operation member into movement of the locking member in the anti-projection direction. Thereby, the fitting between the locking member and the second locking recess is released, and the lock is released.

  The cross-sectional shape of one end of the movable piece is preferably a cam shape.

  In the case where the crescent lock further includes a handle for rotating the crescent hook and a lock mechanism for locking the handle in a locking position, the lock mechanism protrudes toward the base portion in the handle. A locking member that can be provided, a second urging means that urges the locking member in a protruding direction, and provided on the base portion and when the crescent hanging portion is positioned at the locking position. A first locking recess into which the locking member is fitted, and a movably provided in the handle in a direction substantially perpendicular to a protruding direction of the locking member, and a tip portion can be operated from the handle A projecting operation member; and a motion conversion unit that converts the operation movement of the operation member into a movement in an anti-projection direction against an urging force of the second urging unit of the locking member.

  In this case, when the handle is rotated and the crescent hanging portion is positioned at the locking position, the locking member is moved to the first locking recess of the base portion by the biasing force of the second biasing means. Mated and locked. In this way, the handle and the crescent hook are locked at the locking position. When the operation member is operated, the movement conversion means converts the operation movement of the operation member into movement of the locking member in the anti-projection direction. Thereby, the fitting between the locking member and the first locking recess is released, and the lock is released.

  In the case of the crescent lock of the present invention, when the lever and the movable piece move along the guide hole along with the rotation of the crescent hanging portion, the abutting portion of the lever comes before the crescent receiving portion before the crescent hanging portion. The abutment portion is displaced in a direction approaching the shaft portion against the urging force of the first urging means, whereby the lever and the movable piece rotate to move the movable portion. The direction is changed so that one end of the piece does not contact the locking projection. For this reason, the said crescent hook part can be rotated to a lock position, and can be latched by a crescent receptacle. On the other hand, when the contact portion of the lever does not contact the crescent receiver prior to the crescent hook portion, one end portion of the movable piece contacts the locking projection. For this reason, rotation more than predetermined of a crescent hanging part is prevented, and the crescent hanging of the crescent hanging part can be prevented.

  Hereinafter, a crescent lock according to an embodiment of the present invention will be described with reference to the drawings. 1 is a front view of a crescent lock according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the lock, FIG. 3 is a perspective view seen from the back side of the handle of the lock, and FIG. It is the schematic which shows the operation | movement process of a crescent hanging part, a movable piece, a lever, and a collar hanging prevention mechanism, Comprising: (a) is the front view and back view which show the state which the crescent hanging part was located in the latching release position, (b ) Is a front view and a rear view showing a state where the crescent hanging portion is moving from the unlocking position to the locking position, and FIG. 5C is a front view and a rear view showing a state where the crescent hanging portion is located at the locking position. FIG. 5 is a schematic view showing an operation process of the crescent hanging portion, the movable piece, the lever, and the collar hanging preventing mechanism of the apparatus, and (a) a front view showing a state where the crescent hanging portion is located at the unlocking position. And rear view, (b) is the crescent hanger. FIG. 6 is a schematic longitudinal sectional view of the lock, and FIG. 6 (a) shows a state where the lock mechanism of the lock locks the handle located at the unlocking position. FIG. 7B is a diagram showing a state where the lock mechanism is unlocked, FIG. 7 is a schematic longitudinal sectional view of the lock, and FIG. The figure which shows the state which locked, (b) is a figure which shows the state by which the lock | rock of the said locking mechanism was cancelled | released.

  The crescent lock shown in FIG. 1 is provided with a crescent receptacle 100 attached to a vertical saddle of a not-shown inner shingle, a base part 200 attached to a downstand of a not-shown shoji, and rotatably provided on the base part 200. The crescent hook 300, the handle 400 for rotating the crescent hook 300 from the locking position where the crescent hook 300 is locked to the crescent receiver 100 to the unlocking position where the locking is released, and the crescent hook 300 A color hanging prevention mechanism 500 for preventing the collar hanging and a lock mechanism 600 for locking the handle 400 at the latching position or the latch releasing position are provided. Hereinafter, each part will be described in detail.

  The crescent receiver 100 is a well-known one having a hook portion at the tip so that the crescent hook 300 can be locked.

  As shown in FIGS. 1 and 2, the base part 200 is a substantially rectangular component that is slidably attached to an attachment part 700 that is attached to the vertical arm of the external shoji. A shaft hole 210 that is a circular through hole into which the rotation shaft portion 320 of the crescent hook 300 is rotatably fitted is provided at the center of the base portion 200.

  An upper flange portion 220 having a tapered surface that gradually decreases upward is provided at the upper end portion of the base portion 200. In addition, a lower flange portion 230 having a tapered surface that gradually decreases downward is provided at the lower end portion of the base portion 200. The upper and lower flange portions 220 and 230 are fitted into the upper and lower concave portions 711 and 712 of the fitting portion 710 of the attachment portion 700. Thereby, the base part 200 fits into the fitting part 710 and is slidably attached.

  Further, as shown in FIGS. 4 and 5, on the back surface of the base part 200, two convex regulation that abuts against the arc convex part 332 of the washer 330 of the crescent hanging part 300 and regulates the rotation range of the washer 320. Means 240 are provided.

  The crescent hanging portion 300 includes a hanging portion main body 310 that is locked to the crescent receiver 100, a rotating shaft portion 320 that rotatably supports the hanging portion main body 310 on the base portion 200, and a washer attached to the rotating shaft portion 320. 330.

  As shown in FIG. 2, the hook body 310 is provided with a circular press-fitting hole 311 into which the rotary shaft part 320 is press-fitted. A circular insertion hole 312 in which the movable piece 520 of the collar hanging prevention mechanism 500 is rotatably fitted is provided around the press-fitting hole 311 at the lower end of the hanging portion main body 310. Further, a notch 313 for avoiding interference with the locking member 610 of the lock mechanism 600 is provided at the upper end of the hook body 310.

  The rotating shaft part 320 is a substantially cylindrical body. One end portion of the rotation shaft portion 320 in the length direction is passed through the shaft hole 210 of the base portion 200, and a substantially semicircular tip portion is fitted into the center hole portion 331 a of the washer 330. On the other hand, the outer peripheral surface of the other end portion in the length direction of the rotation shaft portion 320 is knurled, and is press-fitted into the press-fitting hole 311 of the hook body 310 and the shaft support hole 410 of the handle 400.

  That is, the hook body 310 is rotatable on the base 200 from the locking position (see FIG. 4 (c)) to the locking release position (see FIG. 4 (a)) with the rotary shaft 320 as an axis. Yes.

  The washer 330 has a disc-shaped washer main body 331 and an arc convex portion 332 provided on the outer edge of the washer main body 331. A substantially semicircular center hole 331 a is provided at the center of the washer body 331. The washer 330 rotates with the rotation of the rotation shaft portion 320 by fitting the tip of one end portion of the rotation shaft portion 320 into the center hole portion 331a. The arcuate protrusion 332 rotates with the rotation of the washer body 331 and abuts against the two restricting means 240.

  As shown in FIGS. 1 to 3, the handle 400 is a rod-shaped resin molded product. At one end of the handle 400 in the length direction, a shaft support hole 410 into which the rotating shaft portion 320 of the crescent hanging portion 300 is press-fitted and a movable piece 520 of the collar hanging preventing mechanism 500 are rotatably fitted. A hole 420 is provided.

  That is, the handle 400 rotates from the locking position (see FIG. 7) to the locking release position (see FIG. 6) together with the hook body 310 of the crescent hook 300 with the rotation shaft 320 as an axis. .

  As shown in FIG. 6, a guide portion 430 that is a substantially rectangular hole opened upward is provided inside the other end portion and the middle portion of the handle 400 in the length direction. The other end of the handle 400 is provided with a first lateral hole 440 that communicates with the upper end of the guide 430. Further, a second lateral hole 450 communicating with the lower end portion of the guide portion 430 is provided in the middle portion of the handle 400.

  The guide member 430 is fitted so that the operation member 640 of the lock mechanism 600 can move up and down. In addition, a stepped portion 431 that supports the third urging means 650 of the lock mechanism 600 is provided between the inner wall surface of the lower end portion of the guide portion 430 and the third stepped portion 643 of the operation member 640. . Further, two shaft support grooves 432 (one shown in the figure) are provided on both inner wall surfaces orthogonal to the inner wall surface of the lower end portion of the guide portion 430. The two shaft support grooves 432 support the both end portions of the shaft portion 663 of the motion converting means 660.

  The first lateral hole 440 is a hole that regulates the movement range of the arm portion 644 of the operation member 640. The second horizontal hole 450 is a guide hole into which the locking member 610 of the lock mechanism 600 is fitted so as to protrude toward the base portion 200. A circular concave portion into which the other end portion of the second urging means 620 of the lock mechanism 600 is fitted is provided on the bottom surface of the second lateral hole 450.

  As shown in FIGS. 4 and 5, the collar hanging prevention mechanism 500 includes a guide hole 510 that is a substantially semicircular arc-shaped through hole provided around the shaft hole 210 of the base portion 200, and an insertion hole of the crescent hanging portion 300. A movable piece 520 that is a rod-like body that is rotatably inserted into the 312 and has one end 521 in the length direction fitted in the guide hole 510 movably, and another end 522 in the length direction of the movable piece 520 A lever 530 that is attached and has a contact portion 531 that can come into contact with the crescent receiver 100 before the crescent hook portion 300 when the crescent hook portion 3000 rotates, and the contact portion 531 of the lever 530 and the crescent hook portion 300 and the 1st biasing means 540 provided between the rotating shaft parts 320 of 300.

  The guide hole 510 is narrower on the right half in the drawing than on the left half in the drawing. Both corners of the narrow portion of the guide hole 220 serve as locking projections 511 that can lock the one end 521 of the movable piece 520.

  One end portion 521 of the movable piece 520 has a cam shape in cross section. The length of the one end 521 of the movable piece 520 is smaller than the width of the wide portion of the guide hole 510 and the width of the narrow portion of the guide hole 510 as shown in FIGS. It is larger than the dimensions. Further, the width dimension (largest portion) of the one end 521 of the movable piece 520 is smaller than the width dimension of the narrow portion of the guide hole 510 as shown in FIGS. 4B and 4C. Yes. That is, as shown in FIGS. 4A and 5, the one end portion 521 of the movable piece 520 has both ends in the length direction facing both inner wall surfaces in the width direction of the guide hole 510 (hereinafter, 4B and 4C, the both end portions are guide holes 510 as shown in FIGS. 4 (b) and 4 (c). When it is directed in the moving direction and the counter-moving direction (hereinafter referred to as lateral direction), it does not come into contact with the two locking convex portions 511 of the guide hole 510.

  On the other hand, the other end portion 522 of the movable piece 520 has a semicircular cross-sectional shape. The intermediate portion of the movable piece 520 has a circular cross-sectional shape, and is rotatably fitted in the insertion hole 312 of the crescent hook 300.

  The lever 530 includes a contact portion 531 which is a plate-like plate body provided at one end of a plate-like base at a substantially right angle, and a semicircular mounting hole 532 provided at the other end of the base portion. have.

  The other end 522 of the movable piece 520 is inserted into the attachment hole 532. As a result, the lever 530 can rotate around the movable piece 520.

  The first urging means 540 is a torsion coil spring, and includes a coil portion 541 and first and second arms 542 and 543 that extend away from the coil portion 541. . The other end 522 of the movable piece 520 is inserted into the coil portion 541. The first arm 542 comes into contact with the other end portion in the length direction of the rotating shaft portion 320 of the crescent hanging portion 300 in a state where the other end portion 522 of the movable piece 520 is inserted into the coil portion 541. The second arm 543 contacts the contact portion 531 of the lever 530 in a state where the other end portion 522 of the movable piece 520 is inserted into the coil portion 541. By being arranged in this way, the first urging means 540 urges the contact portion 531 of the lever 530 in a direction away from the rotation shaft portion 320.

  As shown in FIGS. 2, 6, and 7, the locking mechanism 600 includes a locking member 610 provided in the second lateral hole 450 of the handle 400 so as to protrude toward the base portion 200, and a locking member 610. Second urging means 620 for urging the projection member in the protruding direction, and first and second engagement recesses 631 and 632 that are provided at the lower upper end portion of the base portion 200 and into which the engagement member 610 can be fitted. And an operation member 640 that is accommodated in the guide part 430 of the handle 400 so as to be movable in the vertical direction and whose tip part protrudes from above the guide part 430, and is accommodated in the guide part 430. Third biasing means 650 for biasing upward, and motion conversion means for converting the operation movement of the operation member 640 into movement in the anti-projection direction against the biasing force of the second biasing means 620 of the locking member 610. 660 and locking member And a pin 670 for supporting the 10 from below.

  The locking member 610 has a wall portion 611, a first trapezoidal portion 612 that protrudes toward the lower end portion of the wall portion 611, and an upper end portion of the first trapezoidal portion 612 toward the one side. And a second trapezoidal portion 613 that is projected.

  One end surface in the thickness direction of the wall portion 611 is a portion pressed against the first plate portion 661 of the motion converting means 660 in the anti-projection direction. Moreover, the circular recessed part in which the one end part of the 2nd biasing means 620 fits in in the other end surface of the thickness direction of the wall part 611 is provided.

  The second trapezoidal portion 613 is a portion that is fitted into the first and second locking recesses 631 and 632. This is.

  The second urging means 620 is held between the bottom surface of the second lateral hole 440 of the handle 400 and the wall portion 611 of the locking member 610, so that the locking member 610 protrudes from the second lateral hole 440. The coil spring is energized.

  The pin 670 is a cylindrical body, and supports the second trapezoidal portion 613 of the locking member 610 from below.

  The operation member 640 is a substantially prismatic member that is accommodated in the guide portion 430 of the handle 400 so as to be movable up and down from the initial position to the pressed position. The rear end portion of the operation member 640 has a step shape having first, second, and third step portions 641, 642, 643. The first step portion 641 is a portion for pressing the second plate portion 662 of the motion conversion means 660. The third step portion 643 holds the third biasing means 650 with the step portion 431 of the handle 400.

  In addition, an arm portion 644 that faces the outside of the handle 400 from the first lateral hole 440 is provided at the distal end portion of the operation member 640. The arm portion 644 contacts the upper and lower edge portions of the first horizontal hole 440 according to the operation of the operation member 640, thereby playing a role of regulating the operation range of the handle 400.

  The third biasing means 650 is a coil spring that is held between the stepped portion 431 of the handle 400 and the third stepped portion 643 of the operating member 640 and biases the operating member 640 upward.

  The motion converting means 660 includes a first plate portion 661, a second plate portion 662 perpendicular to the first plate portion 661, and a circle provided between the first and second plate portions 661 and 662. And a columnar shaft portion 663.

  The shaft portion 663 is rotatably supported by the two shaft support grooves 432 of the both end handles 400. The second plate portion 662 is in contact with the first stepped portion 641 of the operation member 640 in the state positioned at the initial position. As shown in FIGS. 6A and 7A, the first plate portion 661 is disposed so as to face one end surface of the wall portion 611 of the locking member 610 in a state of protruding from the second lateral hole 450. Is done.

  In other words, when the second plate portion 662 is pushed down by the first stepped portion 641 of the operation member 640, the motion converting means 660 rotates around the shaft portion 663 and the first plate portion 661 becomes the locking member. The wall portion 611 of 610 is pressed in the anti-projection direction, and thereby, the pressing operation movement of the operation member 640 is converted into the movement of the locking member 610 in the anti-projection direction.

  Hereinafter, a procedure for assembling the crescent lock having such a configuration will be described. First, the second urging means 620 and the locking member 610 are sequentially inserted into the second lateral hole 450 of the handle 400. At this time, the pin 670 is disposed below the second trapezoidal portion 613 of the locking member 610.

  Thereafter, the motion conversion means 660 is inserted into the guide portion 430 of the handle 400, and both end portions of the shaft portion 663 of the motion conversion means 660 are pivotally supported by the two shaft support grooves 432 of the guide portion 430. Then, the first wall portion 611 of the motion converting means 660 is positioned on the first trapezoidal portion 612 of the locking member 610 and faces one end surface of the wall portion 611.

  Thereafter, the third urging means 650 is inserted into the guide portion 430 of the handle 400 and disposed on the step portion 431 of the guide portion 430.

  Thereafter, the operation member 640 is inserted into the guide portion 430 of the handle 400. Then, the arm portion 644 of the operation member 640 is fitted into the first lateral hole 440. At the same time, the third step portion 643 of the operation member 640 contacts the third biasing means 650, and the first step portion 641 of the operation member 640 contacts the second plate portion 662 of the motion conversion means 660. Touch.

  On the other hand, the rotation shaft portion 320 of the crescent hook portion 300 is inserted into the shaft hole 210 of the base portion 200. Then, the tip of one end of the rotating shaft 320 is fitted into the center hole 331 a of the washer 330. Thereby, the washer 330 is attached to the back surface of the base part 200. Then, the other end portion of the rotating shaft portion 320 is press-fitted into the press-fitting hole 311 of the hook portion main body 310 of the crescent hook portion 300. Thereby, the hanging part main body 310 is rotatably attached to the base part 200 from the locking position to the locking release position.

  Thereafter, the one end 521 of the movable piece 520 of the collar hanging prevention mechanism 500 is inserted into the insertion hole 312 of the hanging part main body 310 and the guide hole 510 of the base part 200. Thereafter, the other end 522 of the movable piece 520 is fitted into the mounting hole 532 of the lever 530. Then, the other end portion 522 of the movable piece 520 is inserted into the coil portion 541 of the first biasing means 540, the first arm 542 is brought into contact with the rotating shaft portion 320, and the second arm 543 is brought into contact with the lever 530. It abuts on the part 531.

  Thereafter, the other end portion of the rotary shaft portion 320 is press-fitted into the shaft support hole 410 of the handle 400 assembled as described above. At the same time, the other end 522 of the movable piece 520 is fitted into the fitting hole 420 of the handle 400. In this way, the handle 400 is rotatably attached to the base portion 200 from the locking position to the locking release position.

  Then, while attaching the base part 200 to the attachment part 700, the said attachment part 700 is attached to the said shoji. On the other hand, the crescent receiver 100 is attached to the above-mentioned inner shingles.

  Hereinafter, the usage method of the crescent lock assembled in this way and the operation of each part will be described. First, when the handle 400 and the hook body 310 of the crescent hook 300 are located at the lock release position, the locking member of the lock mechanism 600 is driven by the biasing force of the second biasing means 620 of the lock mechanism 600. As shown in FIG. 6A, 610 is fitted and locked in the second locking recess 632.

  Thereafter, the inner or outer shoji is moved and both are placed in the normal closed position. Then, as shown in FIG. 6B, the operation member 640 of the lock mechanism 600 is pressed against the urging force of the third urging means 650. Then, the first step portion 641 of the operation member 640 presses the second plate portion 662 of the motion conversion means 660. Thereby, the motion converting means 660 rotates around the shaft portion 663, and the first plate portion 661 of the motion converting means 660 pushes down the wall portion 611 of the locking member 610 in the anti-projection direction. Then, the locking member 610 moves in the anti-projection direction against the urging force of the second urging means 620. Thereby, the locking between the locking member 610 and the second locking recess 632 is released.

  At this time, the arm portion 644 of the operation member 640 moves downward in the first lateral hole 440 of the handle 400 and comes into contact with the lower edge of the first lateral hole 440. Thereby, the operation member 640 is prevented from being pushed more than a predetermined amount.

  Thereafter, when the handle 400 positioned at the unlocking position is rotated, as shown in FIGS. 4A and 4B, the hanging portion main body 310 is rotated and the movable piece 520 and the lever 530 are moved. It moves along the guide hole 510 of the base part 200. At this time, the locking member 610 rotates together with the handle 400 while the second trapezoidal portion 613 is in contact with the base portion 200.

  Then, as shown in FIG. 4B, the contact portion 531 of the lever 530 contacts the crescent receiver 100 prior to the hanging portion main body 310. Then, the abutting portion 531 is pressed by the crescent receiver 100 and displaced in a direction approaching the rotating shaft portion 320 against the urging force of the first urging means 540. As a result, the lever 530 and the movable piece 520 rotate, and the one end portion 521 of the movable piece 520 changes in the horizontal direction so as not to contact the two locking convex portions 241 of the guide hole 510 from the vertical direction.

  Thereafter, as the handle 400 is rotated, the hanging portion main body 310 further rotates, and the movable piece 520 and the lever 530 move along the narrow portion of the guide hole 510 of the base portion 200. Then, as shown in FIG. 4C, the hanging portion main body 310 is locked to the crescent receiver 100 and is positioned at the locking position. In this way, the inner and outer shojis are locked by the crescent lock.

  Then, as shown in FIG. 7A, the locking member 610 protrudes from the second lateral hole 450 of the handle 400 by the biasing force of the second biasing means 620, and the first locking recess 631 of the base portion 200. And is locked. In this way, the handle 400 is locked at the locking position by the lock mechanism 600.

  At the same time, the operation member 640 moves upward by the urging force of the third urging means 650. At this time, the arm portion 644 of the operation member 640 moves upward in the first lateral hole 440 of the handle 400 and comes into contact with the upper edge portion of the first lateral hole 440. Thereby, the operating member 640 is prevented from returning more than a predetermined amount.

  Thereafter, to unlock the crescent lock, as shown in FIG. 7B, as described above, the operation member 640 of the lock mechanism 600 is pushed down, and the locking member 610 and the first locking recess 631 are pressed. Release the lock. Then, the handle 400 is rotated from the locking position to the locking release position. Thereby, locking of the crescent lock is released. In addition, the operation | movement of each part accompanying rotation of the handle | steering-wheel 400 at the time of cancellation | release of a crescent lock operate | moves in the reverse order to the above-mentioned.

  On the other hand, when the inner and outer obstacles are not positioned in the normal closed position (that is, in the open state such as half-opened), when the handle 400 positioned at the unlocking position is rotated, As the main body 310 rotates, the movable piece 520 and the lever 530 move along the guide hole 510 of the base portion 200.

  At this time, the contact portion 531 of the lever 530 does not contact the crescent receiver 100. For this reason, as shown in FIG. 5B, the one end 521 of the movable piece 520 does not change its orientation (that is, vertically), and is formed on the two locking projections 241 of the guide hole 510 of the base portion 200. Abut and lock.

  In the case of such a crescent lock, when the handle 400 is rotated in a state where the inner and outer obstacles are not positioned in the normal closed position, the one end 521 of the movable piece 520 is connected to the two guide holes 510. The stopper 241 is brought into contact and locked. For this reason, the rotation of the handle 400 and the crescent hanging part 300 can be stopped, and the crescent hanging part 300 can be prevented from hanging.

  Moreover, since the handle 400 can be locked to the base portion 200 at the locking position and the locking release position, it is possible to prevent an infant or the like from operating the handle 400 carelessly.

  The crescent lock includes a crescent hook portion that is rotatably provided on a base portion from a locking position where the crescent receiver is locked to a lock releasing position where the locking is released, and a collar portion of the crescent hook portion. A collar hanging prevention mechanism for preventing hanging, and the collar hanging preventing mechanism is provided on a portion around the axis of the crescent hanging portion of the base portion and has a locking projection on the inner wall surface thereof. An arc-shaped guide hole, a movable body that is a rod-like body that is rotatably provided around the axis of the crescent hanging portion, and one end portion of the length direction is movably fitted in the guide hole, and the length of the movable piece A lever provided at the other end in the vertical direction and having an abutting portion capable of abutting on the crescent receiver prior to the crescent hanging portion during rotation of the crescent hanging portion; A first urging means for urging the abutting portion of the lever in a direction away from the shaft portion, and is provided with rotation of the crescent hanging portion. When the lever and the movable piece move along the guide hole, if the abutting portion of the lever abuts on the crescent receiver, the abutting portion acts on the urging force of the first urging means. In contrast, the lever and the movable piece are displaced in a direction approaching the shaft portion, whereby the lever and the movable piece rotate, and change the direction so that one end portion of the movable piece does not come into contact with the locking convex portion. In the case where the abutment portion does not abut against the crescent receiver, the design can be arbitrarily changed as long as one end portion of the movable piece comes into contact with the locking projection.

  As for the crescent hanging part 300, the rotating shaft part 320 is a separate body, but it can also be provided integrally with the hanging part main body 310. Further, the rotating shaft part 320 may be provided integrally with the base part 200.

  As for the collar hooking prevention mechanism 500, a narrow portion is provided in the guide hole 510, and both corner portions of the narrow portion are the locking convex portions 511. However, the present invention is not limited to this. For example, a simple convex locking convex portion may be provided on the inner wall surface of the guide hole 510.

  The guide hole 510 may be arcuate.

  The one end 521 of the movable piece 520 is cam-shaped in cross section, but can be arbitrarily changed in design as long as the locking projection can be avoided by changing its direction. It is. For example, the cross-sectional shape of the one end 521 can be a substantially rectangular shape.

  The design of the shape of the locking member 610 can be arbitrarily changed.

  The motion conversion means 660 is not limited to the above example. For example, the motion converting means may include a sloped surface provided on the locking member 610 and a lower end portion of an operation member that presses the sloped surface.

  The first, second, and third urging means 540, 620, and 650 are examples, and a spring or a resin elastic body having the same function can be substituted.

It is a front view of the crescent lock concerning an embodiment of the invention. It is a disassembled perspective view of the lock. It is the perspective view seen from the back side of the handle of the lock. It is the schematic which shows the operation | movement process of the crescent hanging part of this apparatus, a movable piece, a lever, and a collar hanging prevention mechanism, Comprising: (a) is the front view and back view which show the state which the crescent hanging part was located in the latch release position , (B) is a front view and a rear view showing a state in which the crescent hook is moving from the unlocking position to the locking position, and (c) is a front view showing a state in which the crescent hook is located at the locking position. FIG. It is a schematic diagram showing the operation process of the crescent hanging portion, the movable piece, the lever and the collar hanging preventing mechanism of the device, (a) a front view and a rear view showing a state in which the crescent hanging portion is located at the unlocking position, (B) is the front view and back view which show the color hanging state of a crescent hanging part. It is a schematic longitudinal cross-sectional view of the lock, wherein (a) shows a state in which the lock mechanism of the lock locks the handle positioned at the unlocking position, and (b) shows that the lock mechanism is unlocked. FIG. It is a schematic longitudinal cross-sectional view of the lock, (a) shows a state in which the lock mechanism has locked the handle located in the locking position, (b) shows a state in which the lock mechanism is unlocked FIG.

Explanation of symbols

100 Crescent receiver 200 Base part 300 Crescent hook part 320 Rotating shaft part (shaft part)
500 Collaring Prevention Mechanism 510 Guide Hole 511 Locking Protrusion 520 Movable Piece 530 Lever 531 Contacting Portion 540 First Biasing Unit 600 Locking Mechanism 610 Locking Member 620 Second Biasing Unit 631 First Locking Recess 632 Second locking recess 640 Operating member 660 Motion conversion means

Claims (3)

A crescent hanging portion that is rotatably provided on the base portion from a locking position where the crescent receiver is locked to a locking release position where the locking is released, and a collar hanging prevention that prevents the crescent hanging portion from hanging. Mechanism and
The collar hanging prevention mechanism is provided in a portion around the axis of the crescent hanging portion of the base portion, and an arcuate guide hole provided with a locking projection on the inner wall surface thereof,
A movable piece that is a rod-like body that is rotatably provided on a portion around the axis of the crescent hanging portion and whose one end in the length direction is movably fitted into the guide hole;
A lever having an abutting portion that is provided at the other end in the length direction of the movable piece and that can abut against the crescent receiver before the crescent hanging portion when the crescent hanging portion rotates;
A first urging means provided between the abutting portion of the lever and the shaft portion of the crescent hanging portion and urging the abutting portion of the lever in a direction away from the shaft portion;
When the lever and the movable piece move along the guide hole along with the rotation of the crescent hanging portion, when the contact portion of the lever contacts the crescent receiver, the contact portion is Displacement in a direction approaching the shaft portion against the urging force of the urging means, so that the lever and the movable piece rotate so that one end of the movable piece does not contact the locking projection. While changing the direction, when the contact portion of the lever does not contact the crescent receiver, one end of the movable piece comes into contact with the locking projection ,
A handle for rotating the crescent hanger,
A lock mechanism that locks the handle at the unlocking position;
The locking mechanism includes a locking member provided in the handle so as to protrude toward the base portion;
Second urging means for urging the locking member in the protruding direction;
A second locking recess provided in the base portion and into which the locking member is fitted when the crescent hanging portion is positioned at the locking release position;
An operating member provided in the handle so as to be movable in a direction substantially perpendicular to the protruding direction of the locking member and having a tip portion operably protruding from the handle;
A crescent lock comprising: motion conversion means for converting the operation movement of the operation member into movement in the anti-projection direction against the urging force of the second urging means of the locking member .
  The crescent lock according to claim 1, wherein a cross-sectional shape of one end of the movable piece is a cam shape. A first locking recess provided in the base portion and into which the locking member fits when the crescent hanging portion is positioned at the locking position;
An operating member provided in the handle so as to be movable in a direction substantially perpendicular to the protruding direction of the locking member and having a tip portion operably protruding from the handle;
2. A motion conversion means for converting an operation movement of the operation member into a movement in an anti-projection direction against an urging force of the second urging means of the locking member. The crescent tablet described .