JP4632246B2 - Crescent tablets - Google Patents

Description

  The present invention relates to a crescent lock, and more particularly, to a crescent lock having a locking function and having a simple and easy locking operation.

  A crescent lock is usually attached to a summing part of a sliding door and another sliding door or a summing part of a sliding door and a fixing member, and is attached to the sliding door or the fixing member, and has a folding back and locking portion at the tip. A locking piece, a pedestal attached to a sliding door or a fixing member, a handle pivotally supported around a horizontal axis with respect to the pedestal, and an arcuate ring portion formed on the outer periphery. And a locking plate.

  As described above, the crescent lock is a kind of latching device that is attached to the summing portion of the sliding door that is mutually retracted, and usually does not have a locking function, for example, a member provided coaxially with the handle Crescent locks that lock the lock disc by operating are well known.

Moreover, in order to improve the safety | security of a crescent lock, the crescent lock described in the patent document 1 of the postscript incorporates the lock itself in itself.
JP 2001-049921 A

  However, the crescent lock described in Patent Document 1 requires a key to lock and unlock the lock, and storing and taking out the key is a little cumbersome.

  In addition, since the locking / unlocking operation and the handle operation are performed separately, the locking / unlocking operation is simple and easy, and there is still room for improvement.

  Accordingly, an object of the present invention is to provide a crescent lock that has a locking function, does not require a key, and is simple and easy to perform a locking / unlocking operation.

  In order to achieve the above object, the invention according to claim 1 is supported by a thin box-shaped pedestal mounted on one side of the sliding door, and rotatably supported coaxially with the handle on the surface side of the pedestal. An arc-shaped ring-shaped bank formed on the outer periphery has a locking plate adapted to engage with a locking piece of a mating rivet that is pulled apart, and is engaged with the inner end of the handle shaft base. A locking arm is provided vertically, a fixed stopper is provided on one side of the locking arm at the locking angle position, and a locking slider tip is provided on the other side. The leading end of the locking arm is movably guided between the locking position where the leading end of the locking arm is sandwiched between the locking portion and the unlocking position outside the rotation trajectory of the locking arm, and in the locking position direction. On the other hand, in a mode that overlaps with the lock slider near the base end, A control lever is provided so as to be able to swing, and a dial having a notch formed on the outer peripheral portion thereof is provided in the vicinity of one end portion of the control lever so that the control lever can be rotated. On the other hand, an engagement protrusion is formed on one of the base end of the locking slider and the other end of the control lever, and an engagement hole that is long in the guide direction of the locking slider is formed on the other. The biasing force of the control lever is set to be larger than that of the locking slider.

  Further, the invention according to claim 2 is a thin box-shaped pedestal mounted on one side of the sliding door, and a circle formed on the outer periphery of the pedestal so as to be rotatable coaxially with the handle on the surface side of the pedestal. A lock arm is provided at the inner end of the pedestal of the handle shaft in a manner that has an arc-shaped ring-shaped embankment part and a locking plate that engages with a locking piece of the other side of the opposite side. A locking angle position in which the base end of the locking lever is rotatably supported near the distal end of the locking arm at the locking angle position, and the free end of the locking arm faces the front end of the locking arm so as to come into contact with the locking arm; The guide is swingable between the unlocking angle positions retracted from the movement trajectory of the arm and urged in the direction of the locking angle position. On the other hand, a dial having a notch formed on the outer peripheral portion is turned around one end of the base. On the other hand, between this dial and the locking lever One end of the control bar, which is guided to be movable in the length direction, is urged in the direction close to the outer peripheral portion of the dial, and the other end is engaged with the free end portion of the locking lever so that the dial is notched. When one end of the control bar is engaged, the other end of the control bar rotates the free end of the locking lever to the unlocking angle position.

  The crescent lock according to the first and second aspects of the present invention configured as described above is configured such that the notch and one end of the control lever are engaged with each other by turning the dial or the engagement of the control lever is released. Since the locking slider can be moved through the end and the tip can be selectively set to the locking position and the unlocking position, the lock can be incorporated into the crescent lock.

  The invention according to claim 1 is a state in which the arcuate ring-shaped embankment of the crescent lock is not engaged with the locking piece of the other side of the hook, in other words, the crescent lock as a latching device is locked. Disengage the dial notch and one end of the control lever without setting the dial, that is, set the dial to the locking angle position, and turn the handle to lock the crescent lock in this state. The tip of a locking slider is pushed and placed in the unlocked position.When the tip of the locking arm moves to the locking position, the tip of the locking slider is released and the urging force moves the tip of the locking slider to the locking position. Since it is restored, it can be locked only by operating the handle, that is, so-called automatic locking becomes possible.

  Furthermore, since the invention according to claim 2 can drive the locking lever with a slight movement of the control bar, not only the operation is reliable, but also the addition of a slight configuration as in the invention according to claim 1. This enables so-called automatic locking.

  In the inventions of claims 1 and 2, since the dial can be covered with the free end of the handle, it is difficult to operate the dial when, for example, the window glass is broken from outside the room and the hand is inserted into the room. Yes, the crime prevention performance is improved accordingly.

  In addition, since the locking / unlocking operation can be performed simply by turning the dial, there is no need for a so-called key combination, so there is no need to store or take out the key, and the locking / unlocking operation can be simplified. Play.

  The control lever is swung by engaging / disengaging the notch of the dial and one end of the control lever, the locking slider is moved to lock and unlock, and the locking slider is engaged so that it can move relative to the other end of the control lever. Therefore, so-called automatic locking becomes possible.

Embodiments of the present invention will be described below with reference to the drawings.
In the first embodiment, an embodiment of the invention described in claim 1 will be described.

  In FIG. 1, reference numeral 1 denotes a vertically long and thin pedestal, and a locking plate 2 on the surface side of the pedestal 1 and a handle 3 coaxially and integrally coupled to the locking plate 2 are rotatable. It has been hindered.

  The lock plate 2 is integrally formed with a ring portion having a helical engagement edge, and the ring portion can be engaged with a locking piece of a mating rivet that is pulled apart. It is the same as other crescent tablets.

  A locking arm 5 is suspended from the inner end of the pedestal 1 of the handle shaft 4 (see FIG. 2) integrally coupled to the handle 3. Here, the vertical installation means that a locking arm extending in the radial direction of the handle shaft 4 is integrally coupled to the handle shaft.

  The locking arm 5 shown in FIG. 2 is at the 12 o'clock angular position in terms of the clock face, and this angular position is taken as the locking angular position.

  The stopper 6 fixed in the base 1 so as to sandwich the tip of the locking arm 5 at the locking angle position, and the tip (upper end) of the locking slider 7 on the opposite side of the stopper 6 with respect to the tip of the locking arm 5 ) Are arranged respectively.

  The locking slider 7 has a locking position (position shown in FIG. 2) in which the tip of the locking arm 5 is sandwiched between the tip of the locking slider 7 and the stopper 6 along one side surface of the pedestal 1, and the position of FIG. It is guided so as to be able to move between the position shown in FIG. 3, that is, the unlocked position outside the rotation locus at the tip of the locking arm 5.

  The locking slider 7 is urged downward, that is, in the locking direction, by the elasticity of the slider spring 8 as a compression coil spring.

  In the illustrated embodiment, the handle is turned and unlocked by, for example, 180 degrees, and the locking arm 5 is converted into a clock face and the 6 o'clock angular position is set as the unlocking angular position.

  The arm spring 9 as a tension coil spring elastically mounted between the substantially center inside the pedestal 1 and a part of the locking arm 5 functions as a thought spring, and gives a click feeling to the rotation of the handle. However, the arm spring 9 is not an essential component of the present invention.

  On the other hand, a substantially horizontal control lever 11 is disposed in the vicinity of the base end portion (lower end portion) of the locking slider 7 so as to partially overlap with this, and the control lever 11 has a substantially central portion at the lever. The shaft 12 is supported so as to be swingable.

  Further, the control lever 11 has one end (the left end in FIGS. 2 and 3) of the control lever 11 on the outer periphery of the dial 14 to be described later by the elasticity of the lever spring 13 as a compression coil spring mounted on the other end. It is energized in the approaching direction.

  It is assumed that the elasticity of the lever spring 13 is set to be greater than the elasticity of the slider spring 8.

  On the other hand, a dial 14 in which a notch 15 (see FIG. 2) is formed at one location on the outer peripheral portion is provided in the vicinity of one end of the control lever 11 so as to be rotatable.

  In the illustrated embodiment, the dial 14 is obtained by superimposing, in the thickness direction, an operation ring 14a and a main body plate 14b having a polygonal cut portion and having the notch 13 formed at a selected angular position. For example, a part of the operation ring 14a having a knurl formed on the outer periphery is exposed, for example, below the side surface of the base 1 (see FIG. 4), and is configured so that the dial 14 can be rotated from the outside. Yes.

  Further, as shown in FIG. 4, a code such as an arithmetic numeral is marked on the outer peripheral surface of the operation ring 14 a while maintaining a certain angular interval, and the code selected as the code number is, for example, a side opening of the pedestal. By aligning with the center, the angular interval between the notch 15 and one end of the control lever is set.

  Since the dial 14 is configured as described above, a key difference in the number of symbols marked on the operation ring 14a can be obtained. Thus, the crescent lock according to the present invention incorporates a lock as a dial lock. It has a locking function as will be described later.

  In the illustrated embodiment, a click spring 16 that makes line contact with the polygonal step portion of the main body plate 14b is arranged so as to be elastically contacted, and the click spring 16 gives a click feeling to the rotation of the dial 14. Has been granted.

  On the other hand, as shown in FIGS. 2 and 3, an engaging protrusion 17 is provided at the other end of the control lever 11, and this engaging protrusion 17 is a vertically long engagement opening at the lower end of the locking slider 7. The joint hole 18 is slidably engaged.

  As described above, since the elasticity of the lever spring 13 that pushes the other end of the control lever 11 upward is set to be larger than the elasticity of the slider spring 8 that biases the locking slider 7 downward, the locking slider 7 In a normal state where no external force acts on the engagement protrusion 17, the engagement protrusion 17 abuts on the opening edge above the engagement hole 18.

  In the locked state, the crescent lock according to one embodiment of the present invention configured as described above has one end of the control lever 11 at the outer peripheral portion where the notch 15 of the main body plate 14b is not formed, as shown in FIG. Therefore, the other end of the control lever 11 is in a relatively lowered position.

  Therefore, the locking slider 7 follows the other end of the control lever, and is in the locking position shown in FIG. 2, that is, a position where the tip of the locking arm 5 is sandwiched between the locking slider 7 and the stopper 6.

  At this time, as is apparent from FIG. 2, even if the handle 3 (see FIG. 1) is rotated clockwise or counterclockwise, the tip of the locking arm integral with the handle 3 is the tip of the stopper 6 or the locking slider 7. The handle cannot be turned and therefore the crescent lock cannot be unlocked.

  When the operation ring 14a of the dial is turned to unlock the crescent lock and the notch formed at a predetermined angular position is aligned with one end of the control lever 11, one end of the control lever is brought into the notch 15 by the elasticity of the lever spring 13. As shown in FIG. 3, the other end of the control lever pushes up the locking slider 7 and displaces the tip of the locking lever 7 above the rotation trajectory of the locking arm.

  Therefore, the tip of the locking arm 5 at the locking angle position shown in FIG. 2 can be rotated to the unlocking angle position shown in FIG. 3 without interfering with the tip of the locking slider 7. In other words, the crescent lock is unlocked.

  On the other hand, when the locking slider 7 is in the locked state as shown in FIG. 2 and the locking arm 5 is at the unlocking angle position as shown in FIG. Abutting against an arc-shaped relief edge 17a (see FIG. 2) formed at the tip of the locking slider 7 is pushed up (not shown).

  With the configuration described above, the locking slider 7 can move upward relative to the other end of the control lever 11. Therefore, when the handle is further rotated in the locking direction, the tip of the locking arm 5 reaches the locking angle position shown in FIG. When the locking angle position shown in FIG. 2 is reached, the locking arm 5 and the escape edge 17a are disengaged, and the locking slider 7 returns to the position shown in FIG. To do. That is, automatic locking is performed.

  In the above-described embodiment, the engagement protrusion 17 is formed on the other end of the control lever 11 and the vertically long engagement hole 18 is formed on the locking slider 7 side. Of course, the engagement hole 18 may be formed on the other end of the slider, and the engagement protrusion may be formed on the locking slider 7 side.

  FIGS. 5 to 11 show a crescent lock according to an embodiment of the invention described in claim 2, and this crescent lock has a vertically long thin box-shaped base 1 as shown in FIGS. This is the same as the crescent tablet according to the first aspect of the present invention.

  A dial 14 is rotatably provided at the upper end of the base 1 of the crescent lock.

  As shown in FIG. 8, the dial 14 is a plate-like body whose outer shape is, for example, an approximately octagonal shape. The outer shape is circular, and the dial 14 is overlapped with a main body plate 14b formed with a notch 15 at a predetermined angular position on the outer peripheral edge. , Integrally and coaxially coupled.

  As shown in FIGS. 9 and 10, the dial 14 in the illustrated embodiment is connected coaxially with the ring-shaped operation ring 14a (see FIG. 7) so that the relative angular position can be changed.

  For example, with the screw cover 19 (see FIG. 7) removed as shown in FIG. 9, the operating ring 14a is lifted and separated from the dial 14 as shown in FIG. Alternatively, the personal identification number as a dial lock can be changed by turning the multiple angle of 45 degrees counterclockwise and connecting the operation ring 14a and the dial 14 again.

  In addition, since the connection aspect of the dial 14 and the operation ring 14a is known, further detailed description is abbreviate | omitted. In FIG. 8, reference numeral 16 denotes a click spring.

  Returning to FIGS. 5 to 7, the locking plate 2 integrally connected to the handle 3 is rotatably provided at the center of the surface side of the base 1. This is the same as the crescent tablet according to the invention.

  And as shown in FIG. 8, the latching arm 5 is suspended by the inner end in the base of the handle shaft 4. As shown in FIG. Here, the meaning that the locking arm 5 is suspended from the handle shaft 4 is synonymous with the fact that the locking arm 5 extends in the radial direction of the handle shaft 4.

  On the other hand, a locking lever 21 whose projection shape with respect to the paper surface is a substantially right triangle is disposed in the vicinity of the distal end portion of the locking arm 5 at the locking angle position (see FIG. 8), and forms a right angle of the locking lever 21. The base end to be supported is rotatably supported on the base 1.

  The locking lever 21 is, for example, a substantially triangular prism-shaped block body having a large size in the paper surface direction, and a non-numbered circular portion that engages with a control bar, which will be described later, is formed on the front side. A free end 22 that abuts against the tip of the locking arm 5 is formed integrally.

  The free end 22 has a locking angle position (see FIG. 8) that confronts the tip of the locking arm 5 so as to be able to abut, and an unlocking angle position that retreats from the movement locus of the locking arm 5 (see FIG. 11). It is guided so that it can swing between.

  Further, the locking lever 21 is urged clockwise (in the locking angle position direction) in the figure by the elasticity of the locking lever spring 23 (see FIG. 11) as a torsion coil spring.

  Furthermore, as shown in FIG. 11, a relief notch 24 having an arcuate inner peripheral surface is formed on the side of the locking lever that faces the free end 22 of the locking lever and faces the paper. In the unlocked state shown in FIG. 1, the tip of the locking arm 5 integral with the handle can rotate counterclockwise through the escape notch 24.

  On the other hand, as shown in FIG. 8, between the dial 14 and the locking lever 21, a control bar 25 having an overall L-shape extends.

  The control bar 25 is guided so as to be movable in the length direction, that is, in the vertical direction in the figure, and the upper end (one end) of the control bar 25 is dialed by the elasticity of the control bar spring 26 as a compression coil spring (main body board). 14b) is biased in the direction approaching the outer periphery.

  Further, the other end (lower end) of the control bar 25 is formed in a substantially U-shape, and this U-shaped portion engages freely with the circular portion of the locking lever 21.

  Therefore, as shown in FIG. 8, when the control bar 25 is lowered, the locking lever 21 can slightly move counterclockwise.

  In the crescent lock according to the embodiment of the invention described in claim 2 configured as described above, in the locked state shown in FIG. 8, the upper end of the control bar 25 is elastic to the outer peripheral edge where the notch of the main body plate 14a is not formed. Therefore, the control bar 25 is lowered.

  At this time, the locking lever 21 is at the locking angle position shown in FIG. 8, and the line connecting the free end 22 and the base end is substantially horizontal. In this state, the handle is rotated in the unlocking direction, that is, clockwise in FIG. Then, the tip of the locking arm 5 is stopped by the locking lever 21 and the handle cannot be turned.

  On the other hand, when the number is adjusted by turning the operation ring 14a, and the notch 15 of the main body plate is converted to the clock face and is set to the 6 o'clock angle position (see FIG. 11), the control bar 25 is raised by the urging force, In conjunction with this, the locking lever 21 rotates slightly counterclockwise, and its free end 22 retracts out of the movement locus of the tip of the locking arm, so that the crescent lock can be locked by turning the handle. .

  In addition, the invention according to claim 2 is similar to the invention according to claim 1 in the state where the arcuate ring portion of the crescent lock is not engaged with the locking piece of the other hook. If the crescent lock as a latching device is not locked, disengage the dial notch from one end of the control bar, that is, set the dial to the locking angle position and turn the handle in this state to lock the crescent lock. When locked, the distal end of the locking arm pushes the inner peripheral surface of the locking lever escape notch 24 in the locking position to temporarily place it in the unlocking position, and when the distal end of the locking arm moves to the locking position, the distal end of the locking lever Is released, and the leading end of the locking slider is returned to the locking position by the urging force, so that locking can be performed only by operating the handle, that is, so-called automatic locking becomes possible.

The front view which fractures | ruptures and shows a part of crescent lock by one Example of the invention of Claim 1. The locked state is shown in the rear view. The rear view shows the unlocked state. The partial side view of the crescent lock by one Example of the invention of Claim 1. The top view of the crescent lock by one Example of the invention of Claim 2. The front view. The side view. The rear view shows the locked state. Sectional drawing of a dial part. A sectional view of the dial portion shows a state where numbers are converted. In the rear view of the crescent lock by one Example of invention of Claim 2, an unlocked state is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Locking board 3 Handle 4 Handle shaft 5 Locking arm 6 Stopping part 7 Locking slider 8 Slider spring 9 Arm spring 11 Control lever 12 Lever shaft 13 Lever spring 14 Dial 15 Notch 16 Click spring 17 Engaging protrusion 18 Engagement Joint hole 19 Screw cover 21 Locking lever 22 Free end 23 Locking lever spring 24 Escape notch 25 Control bar 26 Control bar spring

Claims (2)

  A thin box-shaped pedestal mounted on one side of the sliding door and a circular arcuate portion formed on the outer periphery of the pedestal that is rotatably supported coaxially with the handle on the surface side of the pedestal are drawn to each other. A locking arm adapted to be engaged with a locking piece of a mating rivet, and a locking arm is suspended from the inner end of the handle shaft base, and the distal end of the locking arm at the locking angle position A fixed stop on one side of the part and a tip of the locking slider on the other side are arranged, and the end of the locking arm is sandwiched between the end of the locking slider and the stop. The locking position and the unlocking position at the distal end of the locking arm are guided movably between the unlocking positions and urged in the locking position direction. A control lever is arranged so as to be superposed and swingable. A dial having a notch in the outer peripheral portion is provided in the vicinity of the portion so as to be rotatable, and the control lever is biased in a direction in which one end thereof is close to the outer periphery of the dial, while the base end portion of the locking slider and the control lever An engagement protrusion is formed on one end of the end, and an engagement hole long in the guide direction of the locking slider is formed on the other. These are slidably engaged, and the biasing force of the control lever is greater than that of the locking slider. Crescent tablets characterized by being set to be large.   A thin box-shaped pedestal mounted on one side of the sliding door and a circular arcuate portion formed on the outer periphery of the pedestal that is rotatably supported coaxially with the handle on the surface side of the pedestal are drawn to each other. A locking arm adapted to be engaged with a locking piece of a mating rivet, and a locking arm is suspended from the inner end of the handle shaft base, and the distal end of the locking arm at the locking angle position Locking angle position where the base end of the locking lever is pivotably supported near the part, and the free end faces the tip of the locking arm so as to be able to come into contact, and the unlocking angle position retracts from the movement track of the locking arm The dial is urged in the direction of the locking angle position, and on the other hand, a dial having a notch formed on the outer peripheral portion is rotatably disposed at one end of the pedestal. Extending between the lock lever and the lock lever, it can be moved in the length direction When one end of the control bar is urged in the direction approaching the outer periphery of the dial and the other end is engaged with the free end of the locking lever, control is performed when one end of the control bar is engaged in the notch of the dial. A crescent lock characterized in that the other end of the bar rotates the free end of the locking lever to the unlocking angular position.

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