JP4434932B2 - Crescent lock and sash window - Google Patents

Description

The present invention relates to a crescent lock and a sash window with an anti-hanging mechanism that can be locked only when both indoor and outdoor shojis are normally closed.

  Conventionally, a crescent lock is known as a locking device for a sash such as a sliding window. As shown in FIG. 11, the crescent lock has a base member 51 attached to the vertical shaft of the indoor shoji 54, and a shade-like shape attached rotatably to the base member 51 via a crescent shaft 53. This is a locking device 50 including a crescent 52 and a crescent bracket 56 attached to an outdoor shoji 55 and having a hook portion 56a for engaging with the crescent 52 (see, for example, Patent Document 1 below).

  In the case of the above-described crescent lock 50, the crescent 52 can be rotated even when the inner or outer shoji is in an open state. In some cases, the crescent 52 may collide with the crescent 52 protruding to the outdoor side, and the crescent may be deformed or damaged.

  In order to solve the above problem, for example, in Patent Documents 2 to 4 below, a crescent lock is proposed in which the handle of the crescent lock is prevented from rotating in the locking direction except when the inner and outer shoji are in the normal closed position. Yes.

  The crescent locks proposed in Patent Documents 2 and 3 have a protruding portion (sensing portion) that prevents the handle from rotating in a state where the crescent lock protrudes toward the external shoji side. When the closure is closed, the protrusion prevents the steering wheel from being prevented from rotating when the protrusion comes into contact with the summoning hand of the shoji and is immersed.

  The crescent lock proposed in Patent Document 4 is rotatably fitted on the crescent shaft between the base and the crescent, and rotates in the same direction as the crescent rotates, and a part thereof is inside. A lockable position confirmation member that protrudes outward from the outer surface of the shovel, and a lockable position that is provided on the receiver and rotated with the crescent when the crescent and the receiver are in the lockable position. The abutting portion with which a part of the confirmation member abuts, and when a part of the lockable position confirmation member abuts with the abutting portion of the receiver, the crescent is allowed to rotate further in the locking direction and is locked. And means for preventing further rotation of the crescent in the locking direction when a part of the possible position confirmation member does not contact the contact portion of the receiving metal.

Furthermore, the following Patent Document 5 proposes a crescent lock having an anti-hanging function that prevents the operation lever of the crescent lock from rotating in the locking direction except when both the indoor shoji and the outdoor shoji are closed. Has been. Specifically, a crescent lock having a hanging portion that extends while rotating by the rotation of the operation lever is provided on the summon child's summon cage, and a crescent receptacle that engages the above-mentioned hanging portion on the summon child's summon rod. Provided, a swingable swinging body is provided on the rotation side including the hook, and one end of the swinging body is locked to a locking part provided on the fixed side, so that the operation lever rotates more than a predetermined angle. And the other end of the oscillating body abuts on the crescent receptacle or the handbag of the outer arm by the rotation of the operation lever when the inner arm and the outer arm are in the normally closed position. A crescent lock has been proposed in which the locked state between one end of the rocking body and the locking portion is released.
Japanese Patent Laid-Open No. 11-93488 Japanese Utility Model Publication No. 57-52303 Japanese Utility Model Publication No. 58-25467 JP-A-9-217537 Japanese Patent Application Laid-Open No. 9-155854

  However, in the case of the crescent locks described in Patent Documents 2 and 3, since the protruding portion slides on the sump of the external shoji every time the inner and outer shojis are opened and closed, the vertical shaft is scratched. It comes to occur. Further, in order to bring the protruding portion into contact with the external shoji, the mechanism on the projecting portion side must be incorporated into the vertical shaft of the inner shroud, resulting in a problem that the structure becomes complicated. Furthermore, in the case of a mechanism for providing the protrusion sensing part projecting to the crescent lock side and immersing the protrusion sensing part by contact with the outer shoji, for example, one of the inner and outer shojis for ventilation and cleaning, When moved to a position beyond the shoji, there is a problem that the projecting sensing portion remains in a projecting state, and may collide with the door-side downside of the outer shoji and be damaged.

  Further, in the case of the crescent lock described in Patent Document 4, an L-shaped bent contact portion is continuously provided on the metal fitting, and this contact portion is caught by clothing or cut into the hand. There are problems such as causing

  Furthermore, in the case of the crescent lock described in Patent Document 5, the other end of the rocking body is actuated by a reaction force that comes into contact with the crescent receiver or the sumo rod of the external shoji, and the rocking body is moved to the crescent receiver. Since the surface of the metal fitting is slidably contacted, there is a problem that it is difficult to perform the locking operation because the resistance of the operation lever is increased.

  Therefore, the main problem of the present invention is a crescent lock provided with an anti-hung mechanism that detects the fully closed state of the shoji by the protrusion sensing unit, and does not scratch the vertical shaft of the outdoor shoji, The object of this invention is to eliminate interference between the protrusion detection unit and the external obstacle, no matter how the external obstacle or internal obstacle is moved during ventilation or cleaning.

In order to solve the above-mentioned problem, as a first aspect of the present invention, a base member fixed to the outer surface of the indoor shoji-side summoning cage and a rotatable about a rotation axis with respect to the base member. In a crescent lock comprising a mounted crescent and a locking metal fitting provided with an operation lever for rotating the crescent, and a crescent metal fitting fixed to an outdoor shoji side and engaged by the crescent,
The locking side metal fitting, and Luz ride member is arranged to be movable in the vertical direction,
As the slide member moves up and down, a trigger member that increases the amount of protrusion toward the outdoor shoji,
Coupled with the pivot shaft of the crescent, if shoji Upon facilities tablets is in the normal closed state, with the rotation operation of the operating lever, the slide member starts to lift, the trigger member on the distal end side Crescent receiving metal to abut, is allowed rotated without previous SL sliding member and abutment, if shoji is incorrect closed, with the rotation operation of the operating lever, the distal end side of the trigger member protrudes, the slide It is equipped with an anti-hung mechanism comprising a rotator whose rotation is prevented by contact with a member,
The slide member, the trigger member, and the rotator are accommodated inside the base member, and the trigger member projects a distal end side from an opening formed on a wall surface of the base member on the outdoor shoji side. crescent lock is provided which is characterized that it is so.

In the invention described in claim 1 Symbol placement, along with the elevation of the sliding member, since with the trigger member to increase the amount of projection of the outdoor shoji side, in unlocked state, ventilation and inner sash for cleaning such Even if one of the external shojis is moved to a position beyond the other shoji, the trigger member and the door-side downside of the outer shoji are not in contact at all.

  In addition, even when the locking operation is performed, when the operation lever is rotated, the trigger member protrudes and senses whether or not it contacts the crescent bracket. Disappears.

According to a second aspect of the present invention, there is provided a sash window comprising the crescent lock according to the first aspect .

  As described above in detail, according to the present invention, in the crescent lock provided with the emptying prevention mechanism that detects the fully closed state of the shoji by the protrusion sensing unit, the vertical saddle of the outdoor shoji does not have a sliding wound. At the same time, no matter how the inner or outer shoji is moved for ventilation or cleaning, the trigger member never comes into contact with the outer shoji.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a plan view of a principal part showing a state in which the crescent lock 1 according to the present invention is attached to a shoji. FIG. 2 (A) is a front view of the crescent lock 1 and FIG. (Cross-sectional view), (C) is a bottom view, FIG. 3 (A) is a locked state, and (B) is a front view showing an unlocked state.

  As shown in FIGS. 1 and 2, the crescent lock 1 includes a base member 3 attached to a summing vertical shaft 7 </ b> A of the indoor shoji 7 with screws or the like via screw holes 9, 9, and the base member 3. On the other hand, the lock-side hardware 2 and the outdoor shoji 8 comprising a crescent 5 that is pivotably mounted around the rotation shaft 4 and an operation lever 6 that is integrally connected to the rotation shaft 4. It consists of a crescent receptacle 11 which is attached to the summoning bowl 8A with screws or the like via screw holes 10 and 10 and has a hook 11a for engaging the crescent 5 with it.

  As shown in FIGS. 2 and 3, the crescent lock 1 has a wall height formed around the crescent 5 by picking the operation lever 6 and rotating the crescent 5 within a range of about 180 degrees. The annular peripheral wall 5A gradually changed into a taper shape is engaged with and disengaged from the crescent bracket 11, and the window is locked or unlocked. Reference numeral 12 denotes a first spring member that indirectly connects one end of the base member 3 and the crescent 5 via a rotor 17 described later. It is for energizing with respect to a locking position and an unlocking position from a state. Reference numeral 13 denotes a locking piece that is slidable in the vertical direction. When locked, as shown in FIG. 3A, the locking piece is located within the rotation range of the crescent 5 so that the crescent 5 cannot rotate. In particular, in the illustrated example, an open / close display is provided, and consideration is given so that it can be confirmed at a glance whether the crescent 5 can be rotated. Further, it is considered that the lock can be confirmed by exposing the fluorescent material 3a embedded in the base member 3 when locked.

  The crescent lock 1 includes an emptying prevention mechanism 14 that prevents the operation lever 6 on the crescent from rotating in the locking direction except when both the indoor shoji 7 and the outdoor shoji 8 are closed. . That is, if both the indoor shoji 7 and the outdoor shoji 8 are not normally closed, the operation lever 6 cannot be rotated and cannot be locked.

  As shown in FIG. 3, the emptying prevention mechanism 14 includes a slide member 15 movably provided in the vertical direction inside the base member 3, and a distal end side 16 a that protrudes toward the outdoor shoji, The rear end side 16b is in sliding contact with the slide member 15, and the trigger member 16 that increases the amount of protrusion toward the outdoor shoji side (the crescent bracket 11 side) as the slide member 15 moves up and down, and the rotation of the crescent 5 If it is connected to the shaft 4 and the position of the slide member 15 in the ascending / descending direction is restricted by engagement with the slide member 15 in the unlocked state, and the shoji 7 and 8 are normally closed when locked. As the operating lever 6 is turned, the slide member 15 starts to move up and down, and the distal end side 16a of the trigger member 16 contacts the crescent bracket 11. If the lifting and lowering operation of the slide member 15 is stopped, thereby allowing rotation without colliding with the slide member 15, and if the shojis 7 and 8 are not normally closed, As the operating lever 6 is rotated, the trigger member 16 protrudes to the maximum protruding state, and the slide member 15 moves to the upper and lower upper limit position, thereby preventing the rotation by the collision with the slide member 15. And a rotator 17.

  Hereinafter, the emptying prevention mechanism 14 will be described in detail for each member and the operating state will be described in detail.

  First, as shown in FIG. 4, the slide member 15 is a substantially plate-like member having a large opening 15 b formed therein, and the trigger member 16 is placed on the upper side of the outdoor shoji side in the attached state. An inclined side 15a with which the other end side 16b is slidably contacted is formed, and a rotation blocking portion 15c of the rotator 17 is formed projecting outward at a position closer to one side of the lower end portion. Further, a spring engaging projection 15d is provided on the lower end surface, and an elevating / lowering position restricting projection 15e for restricting the position in the elevating direction by engagement with the rotary element 17 is formed. .

  In the attached state with respect to the base member 3, as shown in FIG. 7, it is biased upward by a spring material 18 having one end engaged with the base member 3 and the other end engaged with the spring engaging projection 15d. It is arranged in the state.

  Next, as shown in FIG. 5, the trigger member 16 has a sharp portion 16a formed at one end side (front end side) and an inclined side 15a of the slide member 15 at the other end side (rear end side) 16b. It is a small piece member formed with an inclined surface 16c that is in sliding contact with the protrusion 16d having a spring accommodating hole 16e on the side.

  In the attached state with respect to the base member 3, as shown in FIG. 7, the sharpened portion 16 a side protrudes from the opening 3 b formed on the wall surface of the base member 3 on the outdoor shoji 8 side, and the inclined surface 16 c on the other end side is formed. The slide member 15 is assembled while being slidably contacted with the inclined side 15a, and one end of the slide member 15 is in contact with the base member 3 and the other end is urged and held in the immersion direction by the spring material 19 inserted into the spring accommodating hole 16e. Arranged in a state.

  On the other hand, the rotator 17 is a substantially circular small piece member in which a drum-shaped insertion hole 17a is formed to connect the rotation shaft 4 therein, and the first side is on the surface side (inner surface side). A locking projection 17c of the spring member 12 is formed (see FIG. 3), and the contact surface side of the slide member 15 is contacted with the rotor blocking portion 15c of the slide member 15 as shown in FIG. The sliding member 15 has an abutting portion 17b that is prevented from being turned by contact, and a slide for engaging the position restricting engaging projection 15e of the slide member 15 along the circumferential direction inside the abutting portion 17b. A moving groove 17d is formed over a predetermined range. The sliding groove 17d regulates the position of the slide member 15 in the ascending / descending direction by engaging the position restricting engagement protrusion 15e with an end portion 17e (hereinafter referred to as a sliding end). This is because the rotor 17 can be rotated in the locking direction even when the member 15 is stationary.

  In the attached state with respect to the base member 3, as shown in FIG. 7, it is attached so that it cannot be removed by caulking the pivot shaft 4 of the crescent 5 through the insertion hole 17 a while being positioned on the upper surface of the slide member 15.

  On the other hand, as shown in FIG. 10, the crescent metal fitting is cut out from the inside of a substantially rectangular metal plate, and has a distal end side frame piece portion 11A, an upper frame piece portion 11B, and a lower frame piece portion 11C. A hook 11a is formed on the inner side of the frame piece portion 11A, and a protruding step portion 11b is formed on the side of the side of the cutout portion that protrudes toward the shoji.

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

  FIG. 7 (A) is a view showing the crescent lock 1 in an unlocked state (only the emptying prevention mechanism 14 is shown). FIG. 7 (B) is a diagram showing the rotation of the operating lever 6 for locking. It is a figure immediately after starting a motion. FIG. 8 is an operation state diagram when the indoor shoji 7 and the outdoor shoji 8 are both closed and can be locked, and FIG. 9 is a state in which the indoor shoji 7 and / or the outdoor shoji 8 is opened. It is an operation state figure when locking is impossible because there is.

  In the unlocked state of FIG. 7 (A), the elevating position restricting engagement protrusion 15e of the slide member 15 engages with the sliding end 17e of the sliding groove 17d formed in the rotor 17, and the slide By restricting the position of the member 15 in the ascending / descending direction (stopping at an intermediate position), the protruding amount of the trigger member 16 is limited. Incidentally, in this embodiment, the protruding amount of the trigger member 16 at the time of unlocking is 1.0 mm. Therefore, even if the crescent lock is unlocked and one of the inner and outer shojis is moved to a position beyond the other shoji for ventilation and cleaning, the trigger member 16 is located on the door side of the outer shoji 8. No contact with downpipe.

  When the operation lever 6 is rotated in order to lock it from the unlocked state of FIG. 7A, the rotor 17 rotates as the operation lever 6 rotates as shown in FIG. 7B. To do. When the rotator 17 rotates, the sliding end 17e moves upward, so that the slide member 15 rises due to the urging force of the spring member 18, and the trigger member 16 protrudes to the outdoor side accordingly. .

  If both the indoor shoji 7 and the outdoor shoji 8 are normally closed, as shown in FIG. 8A, when the operation lever 6 is rotated for locking, the rotor 17 is rotated. Since the sliding end 17e moves upward, the sliding member 15 is raised by the urging force of the spring member 18, and the trigger member 16 protrudes to the outdoor side. Then, as shown in FIG. 8A, when the tip of the trigger member 16 comes into contact with the protruding step portion 11b of the crescent bracket 11 (4.1 mm protruding position), the slide member 15 is lifted at that position. Therefore, the rotation of the rotor 17 is allowed without colliding with the rotation blocking portion 15c of the slide member 15, so that the operation lever is operated as shown in FIGS. The lock is achieved by continuously rotating 6.

  On the other hand, when the locking operation is to be performed in a state where the indoor shoji 7 and / or the outdoor shoji 8 are not normally closed, as shown in FIG. 9A, the operation lever 6 is used for locking. When the pivoting operation is performed, the rotator 17 rotates and the sliding end 17e moves upward, so that the slide member 15 is raised by the urging force of the spring member 18, but the trigger member 16 is attached to the crescent bracket 11. Since the slide member 15 does not come into contact, the slide member 15 rises to the upper and lower limit position, and even if the operation lever 6 is continuously rotated, as shown in FIG. Since 17b collides with the rotation prevention part 15c of the slide member 15, the further rotation operation becomes impossible.

It is a principal part top view which shows the attachment state to the shoji of the crescent lock 1 which concerns on this invention. (A) is a front view of the crescent lock 1, (B) is a view from the room side (longitudinal sectional view), and (C) is a bottom view thereof. (A) of the Crescent lock 1 is a back view showing a locked state, and (B) is a back view showing an unlocked state. 3 is a perspective view of a slide member 15. FIG. FIG. 6 is a perspective view of the trigger member 16 (a state in which the protruding piece 16d is on the upper side). FIG. 3 is a perspective view of the rotator 17 (a state in which the contact surface with the slide member 15 is on the upper side). (A) shows the assembled state of the emptying prevention mechanism 14, and (B) shows the initial operating state. It is an operation | movement sequence diagram (A)-(D) in a normal closing state. It is an operation | movement sequence diagram (A)-(D) in a biased closed state. (A) of the crescent bracket 11 is a front view, and (B) is a horizontal cross-sectional view. It is a perspective view which shows the conventional crescent lock.

  DESCRIPTION OF SYMBOLS 1 ... Crescent lock, 2 ... Locking side metal fitting, 3 ... Base member, 4 ... Rotating shaft, 5 ... Crescent, 6 ... Operation lever, 7 ... Indoor shoji, 8 ... Outdoor shoji, 11 ... Crescent bracket, 12th DESCRIPTION OF SYMBOLS 1 Spring member, 13 ... Lock piece, 14 ... Empty hanging prevention mechanism, 15 ... Slide member, 15a ... Inclined side, 15c ... Rotation prevention part, 16 ... Trigger member, 16c ... Inclined surface, 16a ... Sharp part, 16e ... Spring accommodating hole, 17 ... rotor, 17b ... abutting portion, 17d ... sliding groove, 17e ... sliding end

Claims (2)

A base member fixed to the outer surface of the indoor shoji side summoning bowl, a crescent attached to the base member so as to be rotatable about a rotation axis, and an operation lever for rotating the crescent In a crescent lock comprising a locking metal fitting provided with, and a crescent bracket that is fixed to an outdoor shoji side and engages the crescent,
The locking side metal fitting, and Luz ride member is arranged to be movable in the vertical direction,
As the slide member moves up and down, a trigger member that increases the amount of protrusion toward the outdoor shoji,
It is connected to the rotation shaft of the crescent, if shoji Upon facilities tablets is in the normal closed state, with the rotation operation of the operating lever, the slide member starts to lift, the trigger member on the distal end side Crescent receiving metal to abut, is allowed rotated without previous SL sliding member and abutment, if shoji is incorrect closed, with the rotation operation of the operating lever, the distal end side of the trigger member protrudes, the slide It is equipped with an anti-hung mechanism comprising a rotator whose rotation is prevented by contact with a member,
The slide member, the trigger member, and the rotator are accommodated inside the base member, and the trigger member projects a distal end side from an opening formed on a wall surface of the base member on the outdoor shoji side. Crescent tablets, characterized in that it has become way. A sash window comprising the crescent lock according to claim 1.

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