JP4744313B2 - Crescent lock with sub-block mechanism - Google Patents

Description

  The present invention relates to a crescent lock provided with a sub-block mechanism for improving a crime prevention function.

  Conventionally, a crescent lock is known as a locking device for a sash such as a sliding window. As shown in FIG. 5, the crescent lock is attached to a mounting base 50 attached to a vertical shovel (summoning stick) of a indoor shoji, and is attached to the mounting base 50 via a crescent shaft 51 so as to be rotatable. The crescent 52 is attached to the outdoor shoji by grasping the operating lever 53 integrally connected to the crescent 52 and rotating it within a range of about 180 °. This is a locking device for a sliding shoji that is engaged with and disengaged from (not shown).

  In recent years, this kind of crescent lock is also slid up and down in order to prevent the crescent 52 from rotating in a locked state in consideration of crime prevention, as shown in FIG. A so-called sub-block mechanism provided with a sub-block stopper piece 54 has been adopted.

  The sub-block mechanism in the crescent is provided with a stopper piece slidably provided on the mounting base, but the sub-block mechanism includes a mounting base 60 as shown in FIG. 6, for example. A rotor 62 having an abutment convex portion 62a is provided so as to be integrally rotatable with respect to the crescent shaft 61, and the rotor 62 is abutted against a sub-block stopper piece 63 for assisting. There are crescent locks that are locked.

  On the other hand, in the case of the above-mentioned crescent lock, the crescent can be rotated even when the inner or outer shoji is in an open state. When the shoji is closed in this locked state, In some cases, the cramps may be deformed or damaged.

Therefore, in order to solve the above problem, for example, as described in Patent Documents 3 to 5 below, the handle of the crescent lock should not be rotated in the locking direction except when the inner and outer shojis are in the normal closed position. In recent years, so-called empty preventing crescent locks have also been proposed.
JP 2002-357036 A JP 2003-172058 A Japanese Patent Laid-Open No. 11-93488 JP-A-9-217537 Japanese Patent Laid-Open No. 9-155854

  However, in the case of a structure in which the rotor 62 is provided in the space of the mounting base 60 with a margin as in the crescent lock shown in FIG. 6, the abutting protrusion 62a of the rotor 62 has a required dimension, and the stopper piece 63 However, in the case where an emptying part is incorporated in the mounting base, such as the crescent lock with the emptying prevention mechanism, the abutting protrusion of the rotor 62 is obtained. The partial area could not be increased, and when trying to unlock from the locked state, a part of the stopper piece (resin) might be scraped off by the abutting projection.

  In addition, in the structure in which the hanging part is incorporated, when the abutting convex portion 62a of the rotor 62 is provided apart from the bottom surface of the mounting base 60, when trying to forcibly unlock from the locked state, The side wall of the mounting base 60 may be deformed to bulge through the stopper piece 63, and the mounting base 60 may be damaged.

  Therefore, the main problem of the present invention is to prevent the stopper piece from being damaged and to prevent the stopper piece from the sub-block rotor, even in a structural condition in which the area of the abutment convex portion of the sub-block rotor cannot be increased. It is an object of the present invention to provide a crescent lock with a sub-block mechanism in which deformation of the side wall of the mounting base is prevented and damage is prevented even under a structural condition in which the side wall of the mounting base is easily deformed.

In order to solve the above-mentioned problem, as the present invention according to claim 1, a mounting base fixed to a vertical shaft of a indoor shoji, a crescent mounted rotatably with respect to the mounting base via a crescent shaft, An operation lever integrally fixed to the crescent shaft, a sub-rotor rotor integrally fixed to the crescent shaft in the mounting base, and provided with an abutting projection around the mounting base, and the mounting base When the operation lever is unlocked by sliding to one end side in the locked state, the abutment protrusion of the sub-block rotor collides In the crescent lock with a sub-block mechanism provided with a sub-block stopper piece for preventing unlocking,
Of the stopper block for the sub-block, at least a portion where the abutment convex portion of the sub-block rotor abuts is constituted by a metal member, and the metal member is in contact with the side wall of the mounting base. A crescent lock with a sub-block mechanism is provided, which is provided integrally with a dispersion wall.

  In the first aspect of the present invention, at least a portion of the sub-block stopper piece where the abutting convex portion of the sub-block rotor abuts is constituted by a metal member, and the metal member is formed on the mounting base. A pressure distribution wall that is in surface contact with the side wall is integrally provided. Therefore, even if the construction condition is such that the area of the abutment projection of the sub-block rotor cannot be increased, when the forcible unlocking is attempted from the locked state, the abutment projection of the sub-block rotor. Since it abuts against the metal member of the stopper piece, the stopper piece is not scraped off.

  In addition, even when trying to unlock forcibly from the locked state, the acting force from the rotor for the sub-block is dispersed by the pressure distribution wall, so that the side wall of the mounting base is deformed to bulge. Or can be prevented from being damaged.

  As a second aspect of the present invention, there is provided a crescent lock with a sub-block mechanism according to claim 1, which is provided with an anti-hanging mechanism capable of being locked only when both the indoor shoji and the outdoor shoji are closed. .

  As described above in detail, according to the present invention, the stopper piece can be prevented from being damaged and the sub-block rotor from the sub-block rotor, even in a structural condition where the area of the abutting convex portion of the sub-block rotor cannot be increased. Even when the stopper piece receives a large force, even if the mounting base side wall is easily deformed, deformation of the side wall of the mounting base can be suppressed and damage can be prevented.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is a front view, a partially broken side view, and a bottom view of a crescent lock 1 with a sub-block mechanism according to the present invention, and FIG. 2 is a rear view of the crescent lock 1 with a sub-block mechanism showing a locked state. 3 is a perspective view of the stopper piece.

  As shown in FIGS. 1 and 2, the crescent lock 1 includes a box-shaped mounting base 2 having an open back surface that is fixed to a longitudinal shaft of a indoor shoji, and a crescent shaft 3 with respect to the mounting base 2. A crescent 4 that is pivotably attached to the crescent shaft 3, an operation lever 5 that is integrally secured to the crescent shaft 3, and that is integrally secured to the crescent shaft 3 in the mounting base 2. A sub-block rotor 6 having an abutment convex portion 6a and a side wall of the mounting base 2 are slidable in the vertical direction, and the operation lever 5 is unlocked by sliding to one end side in a locked state. In this case, it is provided with a sub-block stopper piece 7 (hereinafter simply referred to as a stopper piece) that prevents the unlocking when the abutting convex portion 6a of the sub-block rotor 6 abuts. And a crescent lock provided with a mechanism for preventing emptying that can be locked only when both indoor and outdoor shojis, which will be described later, are closed, in order to disengage the crescent 4 from an outdoor shoji summon. Crescent sockets (not shown) are provided.

  The crescent lock 1 has an annular peripheral wall 4a formed around the crescent 4 by gradually picking the operation lever 5 and rotating the crescent 4 within a range of about 180 degrees, and gradually changing the wall height into a tapered shape. The crescent bracket is engaged and disengaged, and the window is locked or unlocked. Reference numeral 8 denotes a spring member that connects one end of the mounting base 2 to the sub-block rotor 6. When the crescent 4 rotates, the operating lever 5 changes from the horizontal state to the locked position and the unlocked position. It is for energizing it.

  As shown in FIG. 2, the stopper piece 7 is slid downward in the locked state, so that the abutment protrusion 6a of the sub-rotor rotor 6 even if the operation lever 5 is unlocked. Are prevented from unlocking (rotating operation), and when slid downward, the fluorescent material 2a embedded in the outer wall surface of the mounting base 2 is exposed, thereby supporting the unlocking. Consideration is given so that the lock by the block can be confirmed.

  As shown in FIG. 3, the stopper piece 7 includes at least a portion of the stopper piece 7 where the abutting projection 6 a of the sub-block rotor 6 abuts with a metal member 10, and The metal member 10 is integrally provided with a pressure dispersion wall 10 a that is in surface contact with the inner surface of the side wall of the mounting base 2, and the other portions are constituted by the resin member 9.

  As shown in detail in FIG. 4, the resin portion 9 of the stopper piece 7 has an operation knob portion 9 a located outside the mounting base 2 and a substantially intermediate portion between the operation knob portion 9 a and the upper side. A click piece having a connecting portion 9b extending from the position and extending from the connecting portion 9b in the downward direction along the operation knob 9a and having a small protrusion 9d at the distal end toward the operation knob 9a. 9c and a holding piece portion 9e of the metal member 10 extending from the connecting portion 9b in the upward direction along the operation knob portion 9a. The holding piece 9e is provided with through holes 9f and 9f for supporting the metal member 10. The click piece 9c is configured to position the stopper piece 7 by engaging a small projection 9d with a recess provided in the mounting base 2.

  On the other hand, as shown in FIG. 4, the metal portion 10 is a block-like member having two pins 10 b and 10 b on the upper surface side, and the side surface of the block body 10 c is the sub-block rotor 6. The abutting projection 6a is a surface that abuts. The block body 10c is integrally provided with a hanging wall 10a, and the hanging wall 10a constitutes a pressure dispersion wall 10a. Further, a small bracket piece 10d protruding sideways is formed on the side surface of the block main body 10c, and also serves as a slide guide for an empty hanging prevention component (empty hanging prevention slider 11) described later. The metal portion 10 can be manufactured by machining, but it is desirable to use a die-cast part with excellent productivity and manufacturing accuracy.

  The resin part 9 and the metal part 10 are integrated by pressing the pins 10b and 10b of the metal part 10 into the through holes 9f and 9f of the resin part 9 as shown in FIG. As described above, the connecting portion 9 b of the resin portion 9 is attached to the attachment base 2 so as to straddle the side wall of the attachment base 2. In this state, the pressure distribution wall 10a provided on the metal portion 10 is in a state of being in surface contact with the inside of the side wall of the mounting base 2, and even if a force is received from the sub-block rotor 6, the acting force is distributed. Thus, deformation and breakage of the side wall of the mounting base 2 are prevented.

  On the other hand, as shown in FIG. 2, the emptying prevention mechanism is provided with an emptying prevention slider 11 integrally provided with a trigger 11 a facing the outside in the hollow portion of the mounting base 2. Hang is prevented. One end of the anti-hanging slider 11 is locked to the mounting base 2 and the other end of the anti-hanging slider 11 is locked to the anti-hanging slider 11 so that the trigger 11a is always protruded in the protruding direction. When the indoor shoji and the outdoor shoji are both closed, the trigger 11a is pushed in the immersive direction by the hook of the outdoor shoji, and the emptying prevention slider 11 slides in the immersive direction. In this state, since the protrusion 11b provided on the emptying prevention slider 11 is separated from the sub-block rotor 6, the operation lever 5 can be rotated. However, in the state where at least one of the indoor shoji and the outdoor shoji is not closed, the emptying prevention slider 11 remains localized on the side from which the trigger 11a protrudes. Since the sub-block rotor 6 abuts against the protrusion 11b, the sub-lock rotor 6 cannot be rotated, and the crescent is prevented from being hung.

[Other examples]
(1) In the above embodiment, the case where the present invention is applied to the crescent lock 1 provided with the hanging prevention mechanism has been described. However, the present invention is applied to a crescent lock having no hanging prevention mechanism as shown in FIG. The same applies to the same.

1 shows a crescent lock 1 with a sub-block mechanism according to the present invention, (A) is a front view, (B) is a partially broken side view, and (C) is a bottom view. It is a reverse view of the crescent lock 1 with a sub-block mechanism which shows a locked state. It is a perspective view of the stopper piece. The stopper piece 7 is shown, (A) is a front view, (B) is a left side view, (C) is a right side view, (D) is a top view, and (E) is a bottom view. The conventional crescent lock 50 with a sublock mechanism is shown, (A) is a rear view, and (B) is a right side view. A conventional crescent lock 60 with a sub-block mechanism is shown, (A) is a front view, (B) is a left side view, (C) is a right side view, and (D) is a bottom view.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Crescent lock with sub-block mechanism, 2 ... Mounting base, 3 ... Crescent shaft, 4 ... Crescent, 5 ... Operation lever, 6 ... Sub-block rotor, 7 ... Stopper piece, 8/12 ... Spring, 9 ... Resin Part 10 ... Metal part 11 ... Slipping prevention slider,

Claims (2)

A mounting base fixed to the vertical shaft of the indoor shoji, a crescent rotatably attached to the mounting base via a crescent shaft, an operating lever integrally fixed to the crescent shaft, In the mounting base, it is integrally fixed to the crescent shaft, and is provided with a sub-block rotator provided with an abutting convex portion on the periphery, and slidable in the vertical direction on the side wall of the mounting base. A sub-block provided with a sub-block stopper piece that prevents unlocking by abutting the abutment convex portion of the sub-block rotor even when the operation lever is unlocked by sliding to one end side In Crescent lock with mechanism,
Of the stopper block for the sub-block, at least a portion where the abutment convex portion of the sub-block rotor abuts is constituted by a metal member, and the metal member is in contact with the side wall of the mounting base. A crescent lock with a sub-block mechanism, which is provided integrally with a dispersion wall. The crescent lock with a sub-block mechanism according to claim 1, further comprising an anti-hanging mechanism that can be locked only when the indoor shoji and outdoor shoji are both closed.

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