JP4041481B2 - Crescent tablets - Google Patents

Description

  The present invention relates to a crescent lock provided with a sub-block mechanism that operates to automatically prevent rotation of the crescent during locking.

  Conventionally, a crescent lock is known as a locking device for a sash such as a sliding window. As shown in FIG. 7, the crescent lock is attached to a vertical base (summoning scissors) of a indoor shoji, and is attached to the attachment base 50 via a crescent shaft 51 so as to be rotatable. A crescent 52 and an operation lever 53 for rotating the crescent, and a crescent receptacle (not shown) fixed to the outdoor shoji side and engaged with the crescent 52. By pulling the operation lever 53 integrally connected to the crescent 52 and rotating it within a range of approximately 180 °, the crescent 52 is engaged with and disengaged from the crescent bracket attached to the outdoor shoji. It is a locking device for different shojis (see, for example, Patent Document 1 below).

  In recent years, this type of crescent lock is also provided with a sub-block operating piece 54 that can be slid vertically in order to prevent the crescent 52 from rotating in a locked state, as shown in FIG. Sub-lock mechanism is adopted.

  However, in the case of the sub-lock mechanism by manual operation as described above, it is inconvenient in that the sub-block operation piece 54 has to be slid every time it is unlocked and unlocked, and it is possible to forget to apply the sub-block. there were.

Therefore, Patent Document 2 below proposes a crescent lock having a sub-block mechanism that operates so as to automatically prevent the crescent from rotating during locking. Specifically, the crescent lock has a crescent pivot shaft extending into the base member, and a rotor is connected to the pivot shaft, while the base member is engaged with the rotor. A stopper piece that slides between a position where the rotor is locked and a position where the engagement with the rotor is released and the lock of the rotor is released is provided, and the stopper piece Between the spring receiving portion and the spring receiving portion of the base member, there is provided a spring material that constantly urges the stopper piece in the lock position direction. When the crescent is rotated in the locking direction, the stopper piece is automatically slid to the locked position by the urging force of the spring material to prevent the crescent from rotating in the unlocking direction.
JP 2000-170425 A Utility Model Registration No. 2591788

  However, in the case of the crescent lock disclosed in Patent Document 2, if the stopper piece is slid to the unlocking position when the crescent lock is unlocked, the stopper piece is returned to its original position (lock position) by the urging force. Since the crescent must be rotated with the other hand while holding it with one hand so that it does not return to, there has been a problem that the unlocking operation is complicated and requires both hands for the operation.

  Accordingly, a main problem of the present invention is to enable the unlocking operation of the sublock to be smoothly performed with one hand in the crescent lock provided with the sublock mechanism that operates so as to automatically prevent the rotation of the crescent at the time of locking. There is.

In order to solve the above-mentioned problem, as the present invention according to claim 1, a base member fixed to the indoor shoji side, and a crescent attached to the base member so as to be rotatable about a rotation axis, The locking lever includes an operation lever for rotating the crescent, and a crescent receiving bracket that is fixed to the outdoor shoji side and engages with the crescent, and the operation lever is rotated when the locking side bracket is locked. In the Crescent lock provided with a sub-block mechanism to prevent
The sub-block mechanism is integrally connected to the rotation shaft of the operation lever, and has a rotor having a sub-block engagement step on the peripheral surface portion, and a sub-block engagement step of the rotary It is possible to slide between a sub-block state position where the rotation of the rotor is prevented by engaging with a portion and a sub-block release position where the rotation of the rotor is allowed apart from the rotor. And a sub-block operation piece urged in the rotator side direction by the urging means,
A first engaging member that temporarily holds the sub-block operating piece in the sub-block released state position by engaging with another member when the sub-block operating piece is moved to the sub-block released state position; When the operation lever is rotated while being held in this sub-block release state position, a part of the rotary element is brought into contact with each other to release the temporary holding of the sub-block operation piece. A crescent lock characterized by comprising two engaging members is provided.

  In the present invention described in claim 1, when the sub-block operating piece is moved to the sub-block release state position, the sub-block operating piece is engaged by engagement with another member (base member or a separately provided fixing member). A part of the rotator when the operating lever is rotated with the first engagement member temporarily holding the sub-block operating piece in the sub-block released state position while being held in the sub-block released state position. Is provided with a second engagement member that releases the temporary holding of the sub-block operating piece by the collision, and returns the sub-block operating piece to the original state by the biasing means.

  Therefore, when it is desired to unlock the crescent lock and the sub-lock from the locked state, if the sub-block operating piece is moved in the releasing direction with one hand, it is temporarily held in the releasing position, so the hand is moved to the operating lever as it is. Thus, the operation lever can be rotated in the unlocking direction.

  Next, when the operation lever is rotated in the unlocking direction, a part of the rotator (usually the sub-lock engagement step portion) abuts the second engagement member, and the sub-block operation piece is temporarily moved. When the holding is released, the sub-block operating piece is moved to the original state by the biasing means, that is, when the operation lever is rotated to lock the crescent lock, a part of the sub-block operating piece is rotated. It automatically engages with the sub-lock engagement step portion, and returns to a state where it can be automatically sub-blocked.

  According to a second aspect of the present invention, the first engagement member and the second engagement member are both hanging pieces that are suspended from the sub-block operating piece, and the first engaging member is a receiving member formed on the base member. 2. The crescent lock according to claim 1, wherein the crescent lock has an engagement step portion that engages with a mating portion, and the second engagement member has an abutting step portion with which a part of the rotor collides.

  As described above in detail, according to the present invention, in the crescent lock provided with a sub-block mechanism that operates to automatically prevent rotation of the crescent during locking, the sub-lock can be unlocked smoothly with one hand. Become.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a front view, (B) is a left side view, (C) is a right side view, (D) is a plan view, and FIG. 2 is a longitudinal sectional view. 3A is a back view showing the locked state, and FIG. 3B is a back view showing the unlocked state.

  First, the crescent lock 1 includes a base member 3 that is attached to a scissors for indoor shoji with screws or the like, and a crescent 5 that is rotatably attached to the base member 3 with a rotation shaft 4 as a rotation center. The locking lever 2 which is composed of an operating lever 6 integrally connected to the pivot shaft 4 and is attached to the indoor shoji summoning rod with screws etc. through the screw holes 7 and 7, and the outdoor shoji summon It consists of a crescent receptacle (not shown) attached to the mating bar with screws or the like and having a hook portion for engaging the crescent 5. Screw covers 8A and 8B are attached to the screw fixing portion of the base member 3.

  As shown in FIG. 3, the crescent lock 1 has a gradually tapered wall height formed around the crescent 5 by picking the operating lever 6 and rotating the crescent 5 in a range of approximately 180 °. The annular peripheral wall 5A that has been changed to is engaged with or disengaged from the crescent bracket, and the window is locked or unlocked. Reference numeral 9 denotes a first spring member that connects one end of the base member 3 and one end of a later-described rotator 11. When the crescent 5 is rotated, the operation lever 6 is moved from the horizontal state to the locked position and It is for energizing with respect to an unlocking position. Reference numeral 3a denotes a marker (fluorescent material) embedded in the base member 3 so that the locked state can be confirmed by exposing to the outside during sub-blocking.

  The crescent lock 1 includes a sub-lock mechanism 10 that automatically operates to prevent the crescent 5 from rotating in the locked state. That is, when the crescent lock 1 is locked, the sub-lock mechanism 10 is automatically operated to prevent the crescent 5 from rotating.

  As shown in detail in FIGS. 2 and 3, the sub-lock mechanism 10 is integrally connected to the rotating shaft 4 of the operation lever 6, and has a sub-block engagement step portion 11 c on the peripheral surface portion. The rotor 11 having a sub-block state position where the rotor 11 is prevented from rotating by being engaged with a sub-block engagement step portion 11c of the rotor 11; It is provided so as to be slidable between the sub-block released state position that allows the rotation of the rotator 11 and is urged in the direction of the rotator 11 by the urging means such as the second spring material 12. The sub-block operation piece 13 is particularly suitable for the sub-lock mechanism 10 so that the sub-lock operation can be smoothly performed with one hand in order from the unlocking operation of the sub-block to the turning operation of the operation lever. For the piece 13, the Saburo A first engagement member that temporarily holds the sub-lock operation piece 13 in the sub-block release state position by engagement with the receiving engagement portion 3b provided in the base member 3 when moved to the hook release state position. When the operation lever 6 is rotated while being held in the sub-block release state position with 13C, the sub-block operating piece 13 is temporarily held when a part of the rotor 11 abuts. A second engagement member 13D for releasing and moving the sub-block operating piece 13 to the original state by the second spring material 12 is provided.

  Hereinafter, the structure of the sub-lock mechanism 10 will be described in detail for each member, and the operating state will be described in detail.

  First, as shown in FIG. 4 in detail, the rotor 11 is a substantially complex arc-shaped small piece member in which an insertion hole 11a of the rotating shaft 4 is formed. In FIG. A small arc portion 11A in which about two thirds of the left side is formed in a relatively small arc shape, and a large arc portion in which the remaining one third of the left side in the figure is formed in a relatively large diameter arc shape 11B, and one side step portion of the small arc portion 11A and the large arc portion 11B is a sub-lock engagement step portion 11c. A locking protrusion 11b of the first spring member 9 is provided on the surface side of the large arc portion 11B. In the attachment state with respect to the base member 3, it is attached so that it cannot be removed by crimping the rotating shaft 4 of the crescent 5 to the insertion hole 11a.

  Next, as shown in detail in FIG. 5, the sub-block operating piece 13 includes a lock piece 13A that engages and disengages with the rotator 11 by sliding in the vertical direction, and slides the lock piece 13A by hooking a finger. It is a small piece member which consists of the knob | pick part 13B for making it do.

  The lock piece 13A is a block body that is long in the horizontal direction in the figure, and the tip 13a of the lock piece 13A engages with the sub-block engagement step 11c of the rotator 11, thereby rotating the rotator 11. It comes to stop.

  At the position closer to the indoor side of the lock piece 13A, two hanging pieces are formed at a distance from each other. One hanging piece is the first engaging member 13C, and the other hanging piece is the second engaging member 13D. The first engaging member 13C has an engaging protrusion 13c directed to the wall surface side of the base member 3 at the tip portion, and the second engaging member 13D is formed longer than the first engaging member 13C. An abutting step portion 13d that protrudes toward the rotator 11 is formed at the tip. Further, a spring locking projection 13e of the second spring material 12 is provided on the upper surface of the lock piece 13A so as to protrude upward.

  On the other hand, as shown in FIGS. 3 and 6, the base member 3 is provided with a receiving engagement portion 3b corresponding to the first engagement member 13C of the sub-lock operation piece 13 on the inner surface of the side wall, and The other spring locking projection 3c of the second spring material 12 is provided so as to face and separate from the spring locking projection 13e of the sub-block operating piece 13.

  As shown in FIG. 3, the sub-block operating piece 13 is incorporated into the base member 3 in such a manner that the knob 13B is exposed to the outside and is movable in the vertical direction. 12, the sub-block operating piece 13 is urgedly held toward the rotor 11 side.

  Next, the operating state of the crescent lock 1 will be described with reference to FIG.

  First, FIG. 6A shows an unlocked state (see FIG. 3) in which the operation lever is directed downward. When the operation lever 6 is rotated from this state to perform locking, as shown in FIG. 6B, when the end of the large arc portion 11B exceeds the lock piece 13A, the sub-block operation piece 13 is moved to the rotator 11. Therefore, the lock piece 13A is engaged with the sub-lock engagement step portion 11c of the rotor 11, and the operation lever 6 is prevented from rotating.

  When unlocking again, as shown in FIG. 6 (C), a finger is put on the knob 13B of the sub-block operating piece 13 and slides upward against the urging force of the second spring member 12. Then, the engagement protrusion 13c of the first engagement member 13C engages with the receiving engagement portion 3b of the base member 3, whereby the sub-lock operation piece 13 is temporarily held at the sub-block release state position, and the rotator 11 By forming a space in which the operating lever 6 can rotate, the operating lever 6 can be rotated.

  In this state, as shown in FIG. 6D, when the operation lever 6 is rotated in the unlocking direction, the sub-lock engagement step portion 11 c of the rotor 11 is moved to the first position of the sub-block operation piece 13. 2 Collides with the abutting step 13d of the engaging member 13D and kicks it off in the turning direction. Then, the temporary holding of the sub-block operating piece 13 is released, and the sub-block operating piece 13 is moved to the rotator 11 side (downward) by the urging force of the second spring material 12, and is shown in FIG. 6 (A). Will be in its original state.

[Other examples]
(1) In this embodiment, the first engagement member 13C and the second engagement member 13D are both hanging pieces that are suspended from the sub-lock operation piece in order to provide springiness. It is not limited. For example, the first engaging member 13C can be formed as a simple protrusion formed on the plate surface, and the second engaging member 13D can be formed as a protruding piece protruding in the horizontal direction from the plate surface.

(A) of the crescent lock 1 according to the present invention is a front view, (B) is a left side view, (C) is a right side view, and (D) is a plan view. It is a longitudinal cross-sectional view of the crescent tablet 1. (A) of the Crescent lock 1 is a back view showing a locked state, and (B) is a back view showing an unlocked state. (A) of the rotator 11 is a front view, (B) is a side view, and (C) is a bottom view. (A) of the sub-block operation piece 13 is a front view, (B) is a side view, and (C) is a bottom view. FIG. 3 is an operation diagram (A) to (D) of the sub-lock mechanism 10. It is a reverse view which shows the conventional crescent lock.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Crescent lock, 2 ... Locking side metal fitting, 3 ... Base member, 3b ... Receiving engagement part, 4 ... Rotating shaft, 5 ... Crescent, 6 ... Operation lever, 9 ... 1st spring material, 10 ... Sublock mechanism 11 ... rotor, 11c ... sub-lock engagement step, 12 ... second spring material, 13 ... sub-lock operation piece, 13A ... lock piece, 13B ... knob, 13C ... first engagement member, 13c ... engaging protrusion, 13D ... second engaging member, 13d ... abutting step

Claims (2)

A locking member including a base member fixed to the indoor shoji side, a crescent pivotally attached to the base member about a rotation axis, and an operation lever for rotating the crescent, And a crescent lock provided with a sub-block mechanism for preventing the operation lever from rotating when locked, on the locking side metal fitting, comprising a crescent receiving metal fitting fixed to the outdoor shoji side and engaged with the crescent,
The sub-block mechanism is integrally connected to the rotation shaft of the operation lever, and has a rotor having a sub-block engagement step on the peripheral surface portion, and a sub-block engagement step of the rotary It is possible to slide between a sub-block state position where the rotation of the rotor is prevented by engaging with a portion and a sub-block release position where the rotation of the rotor is allowed apart from the rotor. And a sub-block operation piece urged in the rotator side direction by the urging means,
A first engaging member that temporarily holds the sub-block operating piece in the sub-block released state position by engaging with another member when the sub-block operating piece is moved to the sub-block released state position; When the operation lever is rotated while being held in this sub-block release state position, a part of the rotary element is brought into contact with each other to release the temporary holding of the sub-block operation piece. A crescent lock comprising two engaging members. The first engagement member and the second engagement member are both hanging pieces that hang from the sub-lock operation piece, and the first engagement member has an engagement protrusion to the receiving engagement portion formed on the base member. The crescent lock according to claim 1, wherein the second engaging member has an abutting step portion with which a part of the rotor abuts.

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