JP5986379B2 - Hinged door lock - Google Patents

Description

  The present invention relates to a lock for a hinged door used for, for example, a bathroom or a toilet door.

  Conventionally, a lock with a dead bolt has been known as a door lock, and this dead bolt lock has a rectangular dead bolt projecting from the front surface of the door (the surface facing the seat) in a plan view and supported so as to be immersible. The door is closed and the thumb turn is closed to lock the dead bolt tip into the seat, and the thumb turn is unlocked to allow the dead bolt to escape from the seat and place it in the door. It is to be unlocked.

  However, since the conventional deadbolt lock uses a deadbolt that has a square shape in a plan view, it is necessary to immerse the tip of the deadbolt in the seat, and the seat is attached to the frame to which the door is attached. It is necessary to form an engraving to embed, and it can be installed when the frame is made of wood as in the past, but the engraving to embed the receiving seat in the frame material is formed at an accurate position It is necessary to adjust the position of the door at the time of installation as well as it takes time from necessity, and there is also a problem such as water drops collecting when used for doors such as bathrooms, especially with wood as recently. However, it is difficult to carry out when a frame material using a material that is difficult to process later, such as a metal material such as aluminum, is used.

  Further, a utility model registration No. 3162914 has been proposed as a hinged door lock that can be freely opened and closed even in the case of the hinged door lock and can maintain a locked and unlocked state by a thumb turn.

  As shown in FIG. 9, the hinged door presented in this publication includes a box-shaped lock case 1a, a latch 2a attached to the front of the case 1a, and a latch spring 3a attached to the rear of the latch 2a, The latch 2a and the latch spring 3a are provided with a dead bolt 4a attached to the rear of the latch bolt 5a, a lock hub 5a attached in parallel with the dead bolt 4a, and a lock spring 6a. The latch 3a is inclined on both sides in plan view at the front end. The mountain-shaped latch portion 21a is formed by forming a support portion for the latch spring 3a behind the latch portion 21a.

  The dead bolt 4a is formed by bending a main plate portion 6a and a dead portion 7a on the upper and lower sides of the main plate portion 6a or on one of the upper and lower sides, and an engaging portion 61a for engaging with the lock hub 5a on the rear side of the main plate portion 6a. Further, the latch 2a is supported by the latch spring 3a so that the latch portion 21a protrudes from the front surface of the lock case 1a so as to be retractable. The drive engagement portion and the engagement portion of the lock spring 6a formed on the periphery of the lock spring 6a are formed, and the lock hub 5a is urged by the lock spring 6a to rotate, and the lock hub 5a The drive engagement portion is engaged with the engagement portion of the dead bolt 4a by the rotation of the dead bolt 4a, and the dead bolt 4a is moved back and forth. By rotating the rotation shaft of the hub 5a, the drive engagement portion rotates, and the dead bolt 4a engaged therewith moves forward, and at the same time, the dead portion 41a protrudes forward from the lock case 1a. In order to maintain the unlocked state, the drive engagement portion is rotated in the reverse direction by rotating the rotation shaft of the lock hub 5a in the reverse direction. Thus, the dead bolt 4a moves rearward, and at the same time, the dead portion 41a escapes from the insertion hole of the receiving seat 7a and fits in the lock case 1a.

However, although the latch lock presented in the above publication can be easily opened and closed, the latch portion 21a has a mountain shape inclined on both sides in a plan view. A dead bolt 4a that is locked and unlocked by a lock hub 5a having a thumb turn (not shown) attached thereto is required. Further, the dead bolt 4a is inserted and locked in the seat 7a, and is prepared for an emergency or from the outside. It is necessary to attach a mechanism for unlocking.

Utility Model Registration No. 3162914

  The present invention was made in order to solve the problems of the conventional door locks such as latch locks, and can be used by laying a receiving seat on the frame body. Since there is no need to form it, it can be implemented simply by laying it on the surface without embedding a seat in a metal frame that has been widely used recently, and in the unlocked state where the dead bolt is immersed in the lock case Not only can it be used, it can be locked with few parts and a simple structure, and it can also be unlocked from the inside or outside of the room without any special operation in the event of an emergency without the need for an emergency release device. It is an object of the present invention to provide a hinged door lock that can be made possible.

A box-like lock case inserted into the door, a slider disposed in the lock case and capable of moving forward and backward in a front-rear direction over a predetermined distance; The front end surface that is urged forward by the emitting member and protruded by a predetermined distance and is inserted and locked into a square receiving seat installed on the front end of the door mounting frame at the front end is a plan view. A dead bolt having a locking portion having a square shape, a lock hub disposed in the lock case that engages with the slider and advances and retracts the slider, and the slider is positioned forward when the lock hub is in the locked position. an engagement portion of said deadbolt locking portion of said dead bolt moves to a predetermined position in a state where projecting from the front plate of the predetermined length of the tablet case towards said seat The dead bolt is elastically supported by the slider against the urging force of the elastic member, and the slider moves to a predetermined rear position when the lock hub is in the unlocked position. in hinged door for tablet inside Ru it is immersed in the front plate of the dead bolt in the previous section the lock case exits from the locking hole and, projecting on the side surface of the slider inside the lock case, which is formed elastically Engagement holes for elastically engaging the protrusions in the locked state and the unlocked position are formed at predetermined front and rear positions, and when the lock hub is rotated to bring the slider into the locked state or the unlocked state. The elastic protrusions are respectively elastically engaged with the engagement holes to fix the slider at a locked position or an unlocked position .

  According to the present invention, it is not necessary to form an engraving on the frame body in order to form the seat, and for example, an imposition seat can be used.

  Further, in the present invention, an engagement hole is formed at a predetermined front-rear position in which the elastic protrusion protruding and formed on the side surface of the slider is elastically engaged in the locked state and the unlocked position, respectively, inside the lock case. And when the slider is locked or unlocked by rotating the lock hub, the elastic protrusions are elastically engaged with the engagement holes, respectively, to fix the slider in the locked position or unlocked position. Thus, the lock hub can be easily locked and unlocked from the indoor side by rotating the lock hub by a thumb turn or the like.

Further, in the present invention, a slope of a predetermined angle at which the inner side surface of the door on the open / close side of the square locking hole of the seat for locking the locking portion of the dead bolt expands to a predetermined angle toward the outside. The outer surface of the door opening / closing side in the rectangular locking hole of the seat that locks the locking portion of the dead bolt, and the inner side surface of the door opening / closing side in the locking hole are predetermined. By making the inclined surfaces so that the cross-sections are angled with respect to each other at an angle, the door can be opened by pushing or pulling the door with a force greater than a predetermined value in an emergency, so the door can be opened as it is, so-called panic It can also be used as a lock.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic perspective view of preferable embodiment in this invention is shown, (a) shows an unlocked state, (b) shows a locked state. FIG. 2 is a longitudinal and longitudinal sectional view of the embodiment shown in FIG. FIG. 2 is a longitudinal and vertical sectional view of the embodiment shown in FIG. It is a longitudinal cross-sectional view of the state fitted to the seat about embodiment shown in FIG.1 (b). The receiving seat used for embodiment shown in FIG. 1 is shown, (a) An enlarged perspective view, (b) is a cross-sectional view. FIG. 2 shows different seats used in the embodiment shown in FIG. 1, wherein (a) is an enlarged perspective view and (b) is a transverse sectional view. FIG. 2 shows still another seat used in the embodiment shown in FIG. 1, (a) is an enlarged perspective view, and (b) is a cross-sectional view. It is a longitudinal cross-sectional view which is further different in embodiment shown in FIG. It is a longitudinal cross-sectional view which shows a prior art example.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 to 7 show a preferred embodiment of the present invention. A latch lock 1 according to the present invention is arranged in a box-shaped lock case 3 to be inserted into a door 2 and a lock case 3. A slider 4 that can be moved forward and backward over a predetermined distance, and a state in which the slider 4 can be moved forward and backward in a forward and backward direction over a predetermined distance and is urged forward by a bullet member 5 and protruded by a predetermined distance And a dead bolt 6 is provided. In the present embodiment, a spring member is used as the elastic member 5, but for example, a member using an elastic body of a rubber material or a resin foam material, a cylinder such as air, a member using the repulsive force of a magnet, etc. A well-known elastic member can be used.

  In the present embodiment, the slider 4 is inserted into a slide groove 32 formed to face the pair of side plates 31 and 31 forming the lock case 3, and the urging force of the elastic member 5 over a predetermined distance. And can be advanced and retracted by a predetermined distance in the front-rear direction.

  In the present embodiment, the dead bolt 6 forms a locking portion 61 whose tip is chamfered at a leading end surface that is fitted and locked to a receiving seat 8 installed on the mounting frame 7 of the door 2. 61 and the locking hole 81 formed in the seat 8 have the same shape as a square in a plan view having a predetermined depth to which the locking portion 61 can be inserted and engaged.

  In particular, the receiving seat 8 has an inner surface 811 in the locking hole 81 rising substantially vertically as shown in FIG. 5, and an inner surface 812 on the door opening / closing side in the locking hole 81 as shown in FIG. 7 has an inclined surface that expands outward at a predetermined angle, or the door has an outer surface 82 on the opening / closing side and an inner surface 812 on the door opening / closing side of the locking hole 81 as shown in FIG. It is preferable to use those having inclined surfaces so that the cross-sections thereof are angled to each other.

  Furthermore, in the lock case 3, for example, a lock hub 9 to which a thumb turn (not shown) arranged on the indoor side of the door 2 is attached is rotatably attached.

Engaging protrusions 91 and 92 that engage with engaging pieces 41 and 42 that protrude from the slider 4 are provided on the lock hub 9. By rotating the lock hub 9 via a thumb turn, FIG. (A) and the unlocked state in which the dead bolt 6 shown in FIG. 2 is immersed in the front plate of the lock case 3, and the engaging part of the dead bolt 6 shown in FIG. 1 (b) and FIG. Switch to locked state.

  In particular, in the present embodiment, as shown in FIG. 7, elastic protrusions (not shown) formed on the side surfaces of the slider 4 on the inner side of the side plates 31, 31 constituting the lock case 3 are in the locked state position and Engagement holes 34 and 35 that are elastically engaged in the unlocked position are formed at predetermined front and rear positions, and the elastic protrusions are formed when the lock hub 9 is rotated to place the slider 4 in the locked or unlocked state. The slider 4 can be fixed at the locked position or the unlocked position by elastically engaging with the engaging holes 34 and 35, respectively.

  In the latch lock 1 according to the present embodiment, the front plate 33 provided in the lock case 3 is embedded and accommodated along the small opening 21 of the door 2 as well as the conventional latch lock, and the lock hub 9 from the inside. A thumb turn (not shown) is attached.

  A receiving seat 8 is attached to the mounting frame 7 of the door 2 at a position facing the dead bolt 6 that protrudes and protrudes from the front plate 33 of the lock case 3. At this time, in the present embodiment, it is not necessary to form a carving as in the case of a conventional door lock, and the receiving seat 8 may be attached to the surface of the mounting frame 7 with, for example, a set screw or an adhesive.

  In this embodiment, the thumb turn is unlocked, and the elastic protrusions that project the lock hub 9 from the side plate 31 as shown in FIGS. The door 2 can be freely opened and closed when 6 is fixed in the unlocked state where it is immersed in the front plate 33 of the lock case 3.

  Therefore, if you don't need to lock or don't want to lock, such as when you're cleaning or your child is using the bathroom or toilet, you can lock it by unlocking the thumb turn. There is nothing. When it is necessary to lock from the indoor side during use, the lock hub 9 is rotated from the indoor side by a thumb turn (not shown), and the dead bolt 6 shown in FIG. The locking portion 61 is projected from the front plate 33 by a predetermined length, and the locking portion 61 is fitted and engaged with the locking hole 81 of the receiving seat 8. As shown in FIGS. 1 (a) and 2, the unlocked state in which the dead bolt 6 also serving as a latch is immersed in the front plate 33 of the lock case 3.

  In order to achieve the locked state, the lock hub 9 is rotated by the thumb turn (not shown), and the dead bolt 6 shown in FIGS. 1 (b) and 3 is moved from the front plate 33 of the lock case 3 to a predetermined length. Only protrude.

  In this embodiment, when the lock hub 9 is rotated to bring the slider 4 into the locked state or the unlocked state, the elastic protrusions elastically engage with the engagement holes 34 and 35, respectively, so that the slider 4 is locked. Or since it can be fixed at the unlocked position, there is no fear of returning to the locked or unlocked state by mistake.

Thus, in the present embodiment, it is needless to say that the seat 8 can be mounted without forming the engraving on the mounting frame 7 by supporting the dead bolt 6 on the slider 4 via the elastic member 5. However, the end surface of the dead bolt has a chamfered structure, and the locking portion 61 of the dead bolt 6 inserted into the receiving seat 8 is elastically pushed by pushing the door 2 to the open side beyond a predetermined pressing force. As a panic lock, the door 2 can be opened by moving outward along the inner surface 81 of the locking hole 81 in the seat 8 against the urging force of the generating member 5 and withdrawing from the locking hole 81. Can also be used. At this time, in this embodiment, the lock hub 9 is rotated by the dead bolt, and returns to the unlocked state shown in FIG. Moreover, if the inner surface 812 on the door opening / closing side of the catch hole of the seat 8 has an inclined surface that widens to a predetermined angle as shown in FIG. it can.

  On the other hand, when using the seat 8 in which the inner side surface 812 on the door opening / closing side of the opening / closing side outer surface 82 shown in FIG. The lock hub 9 is rotated by a not-shown) and the dead bolt 6 shown in FIGS. 1B and 3 is used in a state where it protrudes from the front plate 33 of the lock case 3 by a predetermined length. When the door 2 is closed, the locking portion 61 of the dead bolt 6 gets over the outer surface 82 of the seat 8 and is inserted into the locking hole 81, and the seat 2 shown in FIG. As in the case of 8, the dead bolt 6 fitted in the locking hole 81 of the receiving seat 8 is removed, and can be used in the same manner as a normal latch lock.

  The latch locking strength can be freely set by the elastic force of the elastic member 5 of the dead bolt 6 and the inclination angle of the outer surface 82 of the seat 8 and the inclined surface 811 of the locking hole 81, In particular, it is possible to determine the pressing force required when the door 2 is opened and closed by changing the inclination angle of the outer surface 82 and the inclined surface 811, and can be set as appropriate according to the purpose of use. it can.

  Further, the present invention can be used as a normal latch lock having a panic lock by providing an opening means on the outdoor side of the dead bolt 6 unlike the embodiment.

  In particular, the present invention has an advantage that the door 2 can be opened simply by pressing it in the opening direction even when the thumb turn or the handle connected to the dead bolt 6 becomes unusable.

1 door lock, 2 doors, 3 lock cases, 4 sliders, 5 elastic members, 6 dead bolts, 7 mounting frames, 8 seats, 9 lock hubs, 61 locking parts, 81 locking holes, 82 inclined surfaces, 811 inclined surface

Claims (4)

A box-like lock case inserted into the door, a slider disposed in the lock case and capable of moving forward and backward in a front-rear direction over a predetermined distance; The front end surface that is urged forward by the emitting member and protruded by a predetermined distance and is inserted and locked into a square receiving seat installed on the front end of the door mounting frame at the front end is a plan view. A dead bolt having a locking portion having a square shape, a lock hub disposed in the lock case that engages with the slider and advances and retracts the slider, and when the lock hub is in a locked position, the slider an engagement portion of said deadbolt locking portion of said dead bolt moves to a predetermined position in a state where projecting from the front plate of the predetermined length of the tablet case towards said seat The dead bolt is elastically supported by the slider against the urging force of the elastic member, and the slider moves to a predetermined rear position when the lock hub is in the unlocked position. in hinged door for tablet inside Ru it is immersed in the front plate of the dead bolt in the previous section the lock case exits from the locking hole and, projecting on the side surface of the slider inside the lock case, which is formed elastically Engagement holes for elastically engaging the protrusions in the locked state and the unlocked position are formed at predetermined front and rear positions, and when the lock hub is rotated to bring the slider into the locked state or the unlocked state. The door lock according to claim 1, wherein the elastic protrusions are elastically engaged with the engagement holes to fix the slider at a locked position or an unlocked position . 2. The inclined surface of a predetermined angle that the inner side surface on the door opening / closing side of the rectangular locking hole of the seat that locks the locking portion of the dead bolt is widened to a predetermined angle toward the outside. The door lock described in 1. The outer side of the door opening / closing side in the square locking hole of the seat for locking the locking part of the dead bolt and the inner side of the door opening / closing side of the locking hole are angled to each other at a predetermined angle. The hinge for a door according to claim 1 or 2, which is an inclined surface. The hinge for a hinged door according to claim 1, 2 or 3, wherein the dead bolt has a locking portion whose end surface is chamfered.

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