JP7106379B2 - Fittings - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fitting such as a door installed in an opening of a building, and more particularly to a fitting having a lock mechanism and a latch mechanism for fixing a door body to a frame.

As a conventional fitting, as described in Patent Document 1, it has a lock mechanism part composed of a lock and a latch mechanism part, and has a latch lock case for housing the latch in the door body and a handle attached to the latch lock case. there is a door. In this door, the locking of the latch mechanism is released by operating the handle. However, in the door described in Patent Document 1, the handle and the latch bolt for operation are interlocked to release the latch. There were restrictions on

Therefore, in the door disclosed in Patent Document 2, an operation lever is provided for unlocking the latch in addition to the handle. When the door described in Patent Document 2 is opened from a locked state, after the lock mechanism is unlocked, the operation lever is operated to release the latch, so that the door can be opened. become a state. This eliminates the restriction that the latch mechanism and the door handle must be placed close to each other, improving the degree of freedom in design.

JP 2003-328619 A JP 2017-180027 A

However, the door described in Patent Document 2 above must be provided with a cover that prevents it from being seen from the outside in order to prevent the operation lever from becoming design noise and achieve a noiseless design. rice field. In addition, when opening a door (door body) from a locked state, three steps of operation are required: a lock (unlock) release operation, a latch release operation using an operation lever, and a door push or pull operation. The number of operations from opening the door to opening the door was large.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide fittings in which there is no restriction on the position of the handle, a noiseless design can be easily realized, and the number of operations for opening the door body is reduced.

A fitting of the present invention is a fitting comprising a frame provided in an opening of a building, and a door attached to the frame so as to be openable and closable. A plurality of lock mechanism units for locking, a latch mechanism unit for latching the door body when the door body is closed, and a force provided between the plurality of lock mechanism units to move the deadbolts of the plurality of lock mechanism units. and a transmission mechanism for transmitting the lock mechanism portion having a dead bolt and a dead strike for inserting the dead bolt, and the latch mechanism portion having a latch bolt and a latch strike for inserting the latch bolt. , the latch strike has a receiving member for holding the latch bolt, and a spring that biases the receiving member to a position where the receiving member can lock the latch bolt, and the receiving member: The receiving member is rotatably attached to the latch strike by a force received from the latch bolt, and when a force acts on the door body in a direction to open the door body from a state in which the receiving member locks the latch bolt, the spring The receiving member rotates against the force of (1), and the locking of the latch bolt by the receiving member is released . In the present invention, latching the door means that the latch bolt is engaged with the latch strike in the latch mechanism. Locking the door body means that the fitting is locked by engaging the deadbolt with the deadstrike in the lock mechanism. In addition, in fittings, sleeves fixed to the frame may be provided.

Thus, in the fitting of the present invention, the latch strike has a receiving member for holding the latch bolt, and the receiving member is rotatably attached to the latch strike by the force received from the latch bolt and biased by the spring. When a force acts on the door body in a direction to open the door body, the force is applied to the receiving member via the latch bolt , the receiving member rotates against the force of the spring, and the latch bolt is pulled by the receiving member. The locking is released. Therefore, when the door body is opened from the locked state, the door body can be easily opened by a two-step operation of unlocking and pushing or pulling the door body. In addition, since a handle and an operation lever for releasing the latch are not required, the degree of freedom in designing the door body is increased, and noiseless design can be easily realized. Also, even when a part or part such as a handle held by a person is provided on the door body, it can be arranged without being restricted by the position of the latch lock case, so parts or parts of various positions and shapes can be provided. This makes it possible to improve the degree of freedom in designing the door body.

In the present invention described above, a transmission mechanism for transmitting a force to move the dead bolt of the lock mechanism portion and the latch bolt of the latch mechanism portion is further provided, and a common mechanism for operating the latch bolt and the dead bolt is provided. It is preferable to have an operation part of According to this aspect, the deadbolt and the latchbolt can be operated with one operating force, which facilitates the operation.

In the present invention described above, the operation portion is provided in a thumb-turn mechanism that operates by operating a key or a thumb-turn, and the operation portion is positioned at a first operation position as a position for operating the thumb-turn mechanism. , a second operating position and a third operating position, wherein the first operating position is a state in which the latch bolt of the latch mechanism is engaged with the latch strike and the dead lock of the lock mechanism is engaged. In the second operating position, the latch bolt of the latch mechanism is locked to the latch strike and the dead bolt of the lock mechanism is locked. In the third operating position, the latch bolt of the latch mechanism section is in a non-locked state with respect to the latch strike, and the dead bolt of the lock mechanism section is in a non-locked state. It is preferable that the position is such that the dead strike is not locked. According to this aspect, since the third operation position is provided as the operation position of the thumb-turn, the latch bolt is not engaged with the latch strike even if the receiving member is not displaced due to a problem. Therefore, the lock can be released and the fittings can be opened.

In the present invention described above, the dead strike of the lock mechanism portion and the latch strike of the latch mechanism portion are provided on the door tip side of the door body, and the dead bolt of the lock mechanism portion is accommodated. It is preferable that a dead lock case and a latch lock case for accommodating the latch bolt of the latch mechanism portion are provided on the vertical frame of the frame. According to this aspect, when an electric motor is used for the operation of switching between the locked and unlocked states, electrical wiring is not required for the door body. can. In addition, even when an electric motor is used, the door body is not provided with an electric motor, so it is possible to share parts of the door body between fittings with an electric motor and fittings without an electric motor. , making it possible to reduce manufacturing costs.

In the present invention described above, the fitting further includes a sleeve fixed to the frame, and the dead strike of the lock mechanism and the latch strike of the latch mechanism are located on the door tip side of the door. Preferably, the sleeve is provided with a dead lock case for housing the dead bolt of the lock mechanism and a latch lock case for housing the latch bolt of the latch mechanism. According to this aspect, when an electric motor is used for the operation of switching between the locked state and the unlocked state, it is not necessary to provide electrical wiring to the door body, so the number of parts can be reduced and the manufacturing cost can be reduced. be able to. In addition, even when an electric motor is used, the door body is not provided with an electric motor, so it is possible to share parts of the door body between fittings with an electric motor and fittings without an electric motor. Cost can be reduced. Furthermore, when fittings are upgraded or upgraded, it is possible to replace only the sleeves and door bodies without replacing the frames, so it is possible to reduce the introduction cost.

In the present invention described above, it is preferable that an electric motor for moving the transmission mechanism is provided in place of or in addition to the operating section. According to this aspect, a plurality of lock mechanisms can be operated by a single motor, the number of parts can be reduced, wiring can be simplified, and man-hours at the time of manufacturing can be reduced compared to using a plurality of electric motors. be able to.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view which looked at the fittings of the 1st Embodiment of this invention from the outdoor side. It is a front view which shows the lock mechanism part and latch mechanism part of this embodiment. (A) is a front view showing the deadbolt and latchbolt mounting structure of the present embodiment, and (B) is a left side view of (A). (A) is a front view showing the attachment structure of the dead strike and latch strike of this embodiment, (B) is a right side view of (A). It is a front view which shows the latch mechanism part of this embodiment. It is a figure which shows the transmission mechanism of the upper-lower lock mechanism part and latch mechanism part in this embodiment. (A) is a front view showing an upper lock mechanism portion of the present embodiment, and (B) is a left side view of (A). It is a side view which expands and shows the upper lock mechanism part of this embodiment. (A) is a front view showing the rod lock case of the upper lock mechanism of this embodiment, (B) is a front view showing the deadbolt of the upper lock mechanism, and (C) is connected to the deadbolt of the upper lock mechanism. (D) is a front view showing the pin connecting the deadbolt of the upper lock mechanism and the second transmission member, (E) is a side view of the pin is. (A) is a front view showing the lower lock mechanism part of this embodiment, and (B) is a left side view of (A). FIG. 4 is a cross-sectional view showing the latch strike of the present embodiment in a latch bolt locked state; (A) is a cross-sectional view showing the locking structure between the latch strike and the latch bolt according to the present embodiment, and (B) shows the movement of the latch strike and the latch bolt when closing the door in this locking structure. Cross-sectional views (C) and (D) are cross-sectional views showing movements of the latch strike and the latch bolt when opening the door body in this locking structure. FIG. 4 is a diagram showing the operating position of the keyhole for operating the center axis of the cylinder unit of the present embodiment; In this embodiment, the locking state of the dead bolt and the latch bolt is shown, and (A) is the first position where the latch bolt of the latch mechanism is in the locked state and the lock mechanism is in the locked state. (B) is the second position where the latch bolt of the latch mechanism is in the locked state and the dead bolt of the lock mechanism is in the unlocked state, and (C) is the latch bolt of the latch mechanism. and the dead bolt of the locking mechanism are both in the unlocked state. It is a front view which shows 2nd Embodiment of the fittings of this invention. (A) is a block diagram which shows 3rd Embodiment of the fittings of this invention, (B) is a block diagram which shows a part of (A).

<First embodiment>
FIG. 1 shows a first embodiment of fittings of the present invention. A fitting 1 of the present embodiment is a door installed in an opening of a building such as a general house or a building. That is, the door body 3 which is a door body is attached to the frame body 2 so that it can be opened and closed. The frame body 2 includes a suspension-side vertical frame 2a, a door-end-side vertical frame 2b, and an upper frame 2c and a lower frame 2d fixed by screws or the like (not shown) between the vertical frames 2a and 2b. consists of A sleeve 4 is fixed to the vertical frame 2b, the upper frame 2c, and the lower frame 2d by screws (not shown) on the side of the vertical frame 2b on the door end side of the frame body 2. As shown in FIG.

The door body 3 is attached to the suspension-side vertical frame 2a so as to be rotatable around a hinge 5 or a pivot shaft, that is, to open and close the area surrounded by the frame body 2 and the sleeve 4. . In this embodiment, the door body 3 is of an outward-opening type that opens to the outdoor side, but the present invention is also applicable to an inward-opening type that opens to the indoor side.

For the vertical frame 2a, the vertical frame 2b, the upper frame 2c and the lower frame 2d that constitute the frame body 2, for example, an extruded profile made of a metal alloy, a bent steel plate, or the like can be used. The door body 3 is provided with left and right vertical core members 3a and 3b and upper and lower horizontal core members 3c and 3d. A heat insulating material 3f can be provided in the area surrounded by the core materials 3a to 3d and the indoor-side and outdoor-side surface materials 3e. Further, for the core members 3a to 3d that constitute the door body 3, metal or resin extruded profiles, bending members, or the like can be used. The sleeve 4 is also assembled with vertical core members 4a and 4b and horizontal core members 4c and 4d made of the same material as the door body 3, and a heat insulating material 4f is incorporated in the area where the surface member 4e is provided on the front and back surfaces. can be configured with However, in the present invention, the frame body 2, the door body 3 and the sleeve 4 are not limited to the materials and structures described above.

As shown in FIG. 1, in order to fix the door tip side of the door body 3 to the sleeve 4, that is, to the frame body 2 side, lock mechanisms 6 and 7 are provided at two vertically spaced locations. A latch mechanism 8 is provided between the upper and lower lock mechanisms 6 and 7 . As shown in FIG. 2, the upper locking mechanism 6 includes a deadbolt 10 attached to the sleeve 4 and a deadstrike 11 attached to the door body 3 side. The dead strike 11 is box-shaped with an opening 11a (see FIG. 4A), and the deadbolt 10 is inserted into and removed from the opening 11a to lock (lock) and unlock (unlock). It is done.

The lower locking mechanism 7 similarly includes a deadbolt 20 attached to the sleeve 4 and a deadstrike 21 attached to the door body 3 side. The dead strike 21 has a box shape with an opening 21a (see FIG. 4A) on one side, and the deadbolt 20 is inserted into and removed from the opening 21a to lock (lock) and unlock (unlock). ) is done.

The latch mechanism part 8 has a latch bolt 30 attached to the sleeve 4 and a latch strike 31 attached to the door body 3 side. The structure of this latch strike 31 will be described later with reference to FIG.

As shown in FIGS. 3A and 3B, deadbolts 10 and 20 are housed in deadlock cases 12 and 22, respectively. Also, the latch bolt 30 is housed in a latch lock case 32 . The dead lock cases 12 and 22 are fixed to a mounting plate 40 common to the dead lock cases 12 and 22 and the latch lock case 32 by fasteners 41 such as screws. A common mounting plate 40 is fixed to the core member 4a forming the sleeve 4 with a fixing member 42 such as a screw.

As shown in FIGS. 4(A) and 4(B), the dead strikes 11 and 21 and the latch strike 31 are attached to the sleeve 4 side of the door body 3 with a fixing member 45 such as a screw together with a mounting plate 44 common to them. It is fixed to the material 3b.

As shown in FIG. 5, the cylinder body 51 of the cylinder unit 50 is fixed to the latch lock case 32 with screws or the like (not shown). The center of the cylinder body 51 has a keyhole 51a into which a key 53 (see FIG. 3B) can be inserted, and accommodates a center shaft 54 rotatable by the key 53 . A pinion 55 for simultaneously driving the deadbolts 10 and 20 is attached to the center shaft 54 concentrically with the center shaft 54 . As shown in FIG. 3B, a thumb turn 57 is attached to the interior side of the cylinder unit 50 for rotating the center shaft 54 for locking and unlocking.

As shown in FIG. 5 , the latch bolt 30 is housed in the latch lock case 32 so as to project and retract from the latch lock case 32 toward the door body 3 . A pressing spring 37 is provided between a spring receiver 36 provided on the latch lock case 32 and the latch bolt 30 to apply force in a direction to push out the latch bolt 30 .

As shown in FIG. 5 , a lever 58 for operating the latch bolt 30 is attached to the center shaft 54 . The tip of the lever 58 is located in the recess 30a provided in the latch bolt 30, and by rotating the center shaft 54 clockwise in FIG. can be immersed in That is, when the key 53 or the thumb-turn 57 is operated, the lever 58 comes into contact with the right end of the concave portion 30a of the latch bolt 30 in FIG. The sleeve 4 is configured to be immersed in the sleeve 4.

As shown in FIG. 6 , the pinion 55 is combined with the tooth rows 14 a and 24 a of the first transmission members 14 and 24 so as to mesh with the tooth rows on the pinion 55 . Second transmission members 16 and 26 are connected to the first transmission members 14 and 24 by connection pins 15 and 25, respectively. These first transmission members 14 and 24 and second transmission members 16 and 26 are transmission members that, together with the pinion 55, transmit the force for rotating the center shaft 54 to the deadbolts 10 and 20. The transmission member constitutes a transmission mechanism. At the upper end of the second transmission member 16 and the lower end of the second transmission member 26 are pins 60 and 61 (see FIG. 7(A) and FIG. 10(A)) are provided with slots 16a and 26a.

As shown in FIGS. 7(A), 7(B) and 8, the deadlock case 12 includes a case body 12a having a rectangular box shape with one side open and a screw thread on the opening surface of the case body 12a. It has a cover plate 12c secured by 12b. A shaft 17 that rotatably supports the deadbolt 10 is attached to the bottom plate 12d and the cover plate 12c of the deadlock case 12 by fixing both ends thereof. The deadbolt 10 can be pushed through an opening 62 provided in the deadlock case 12 and the mounting plate 40 .

As shown in FIG. 9B, the deadbolt 10 has a groove 10a for receiving the force of the second transmission member 16 via the pin 60. As shown in FIG. As shown in FIGS. 9(D) and 9(E), the pin 60 is formed such that the outer diameter of both end portions 60a is smaller than the outer diameter of the central portion 60b. The outer diameter of the central portion 60b of the pin 60 is slightly smaller than the width of the elongated hole 16a of the second transmission member 16 and the width of the groove 10a of the deadbolt 10. As shown in FIG. As shown in FIGS. 8 and 9A, the bottom plate 12d and cover plate 12c of the dead lock case 12 are provided with guide grooves 12e for movably guiding the pin 60. As shown in FIG. The width of these guide grooves 12e is slightly larger than the outer diameter of both ends 60a of the pin 60 and narrower than the central portion 60b of the pin 60. As shown in FIG.

Therefore, the central portion 60b of the pin 60 is movably fitted into the groove 10a of the deadbolt 10 and the elongated hole 16a of the second transmission member 16. As shown in FIG. Both end portions 60a of the pin 60 are movably fitted into the guide grooves 12e of the bottom plate 12d and the lid plate 12c of the dead lock case 12 to attach the pin 60 thereto.

As shown in FIG. 7A, a spring 12g is attached between a spring receiver 12f provided in the case body 12a of the deadlock case 12 and a spring receiver 10b provided on the deadbolt 10. As shown in FIG. The spring 12g stably holds the deadbolt 10 at the locked position where the deadbolt 10 protrudes from the sleeve 4 and the unlocked position where the deadbolt is retracted into the sleeve 4, respectively.

As shown in FIGS. 10A and 10B, the lower locking mechanism 7 is vertically symmetrical with the upper locking mechanism 6 . That is, the deadlock case 22 for housing the deadbolt 20 includes a case body 22a having a bottom plate 22d and an opening on one side, and a cover plate 22c attached by a fastener 22b such as a screw so as to close the opening of the case body 22a. Consists of The deadbolt 20 is mounted upside down with respect to the deadbolt 10 so as to be rotatable around a shaft 27 provided in the case body 22a.

The second transmission member 26 and the deadbolt 20 are connected by a long hole 26a in the lower end of the second transmission member 26 and a pin 61 inserted into the groove 20a of the deadbolt 20 . Small-diameter portions at both ends of the pin 61 are movably fitted in guide grooves 22e provided in the bottom plate 22d and the cover plate 22c of the case body 22a. The deadbolt 20 is attached to the case main body 22a through an opening 63 provided in the case main body 22a and the mounting plate 40 so as to be protrusive and retractable. A spring 22g is attached between a spring receiver 22f provided inside the case body 22a and a spring receiver 20b provided on the deadbolt 20. As shown in FIG. The spring 22g stably holds the deadbolt 20 in the locked position where the deadbolt 20 protrudes from the sleeve 4 and the unlocked position where the deadbolt 20 is retracted into the sleeve 4, respectively.

The operation and action of the door body 3 of this embodiment will be described. When the door body 3 is closed and locked, as shown in FIGS. 3A, 5 and 6, the second transmission member 16 is at the lowest position and the second transmission member 26 is at the highest position. be. At this time, the deadbolts 10 and 20 of the lock mechanisms 6 and 7 protrude from the sleeve 4 and are housed in the deadstrikes 11 and 21 of the door body 3 in a locked state. Also, the latch bolt 30 is in a latched state in which the strike main body 31c as a receiving member of the strike 31 is locked.

3A, 5 and 6, when the key 53 or the thumb-turn 57 is rotated in the direction of the arrow 75, that is, clockwise, the tooth rows 14a and 14a of the pinion 55 and the first transmission members 14 and 24 24a, the second transmission member 16 rises as indicated by arrow 76, and the second transmission member 26 descends as indicated by arrow 77. As shown in FIG. Since the second transmission member 16 is connected to the deadbolt 10 by the pin 60 , when the second transmission member 16 rises, the deadbolt 10 rotates as indicated by the arrow 78 and leaves the deadstrike 11 . . At the same time, the downward movement of the second transmission member 26 rotates the deadbolt 20 as indicated by the arrow 79 and separates it from the deadstrike 21 . Therefore, the deadbolts 10 and 20 are unlocked and unlocked. The rotation of the center shaft 54 also rotates the lever 58 in the direction of the arrow 75 to move the latch bolt 30 in the direction of the arrow 80 . As a result, locking by the latch bolt 30 is also unlocked.

When locking from the outside of the room, the door body 3 is unlocked, and the door body 3 is locked by performing operations and operations opposite to those described above. Further, locking and unlocking of the lock mechanisms 6 and 7 can be performed by turning the thumb-turn 57 from the inside of the room.

As shown in FIG. 11, the latch strike 31 has a strike case 31a with an opening 31f on the latch bolt 30 side. A strike body 31c is horizontally rotatably mounted in the strike case 31a about a vertical shaft 31b. The strike body 31c serves as a receiving member that holds the latch bolt 30 in the locked state. The strike body 31c has a hook-shaped horizontal cross section, and the strike body 31c can protrude from the opening 31f of the strike case 31a. The strike body 31c has a locking surface 31g formed of a vertical plane for locking the latch bolt 30, and an arcuate surface 31h formed on the opposite side of the locking surface 31g. The strike body 31c receives a force to rotate the strike body 31c to a position where the latch bolt 30 can be locked by a spring 31d wound around the shaft 31b. The range of rotation of the strike body 31c toward the locking side is limited by a stopper 31e provided on the strike case 31a.

As shown in FIG. 12A, when the door body 3 is closed, the latch bolt 30 abuts against the locking surface 31g of the strike main body 31c, and the latch bolt 30 is locked. That is, the opening of the door body 3 is blocked.

As shown in FIG. 12(B), when the door body 3 is rotated in the closed direction as indicated by an arrow 70 from the open state, the strike body 31c is pushed against the stopper 31e provided in the strike case 31a. It is in contact. When the arcuate surface 31h of the strike body 31c abuts against the inclined surface 30b of the latch bolt 30 and the door body 3 is closed, the latch bolt 30 moves into the sleeve 4 as indicated by the arrow 71 against the force of the spring 37. Immerse yourself. After that, when the strike body 31c exceeds the latch bolt 30, the force of the spring 31d causes the strike body 31c to return to the direction in which it protrudes from the opening 31f, as shown in FIG. 12(A). 30 is locked.

When the deadbolts 10 and 20 are in the unlocked state separated from the deadstrikes 11 and 21, respectively, and the latch bolt 30 is in the latched state as shown in FIG. The operation is as follows. As shown in FIG. 12(A), when the strike body 31c locks the latch bolt 30, a force is applied to the door body 3 in the direction of opening it, as indicated by an arrow 72 in FIG. 12(C). , the strike body 31c rotates as indicated by an arrow 73. As shown in FIG. That is, the strike body 31c rotates as indicated by an arrow 73 against the force of the spring 31d by the reaction force received from the latch bolt 30. As shown in FIG. Thereby, as shown in FIG. 12(D), the strike body 31c is released from the latch bolt 30, and the door body 3 can be opened. After being disengaged from the latch bolt 30, the strike body 31c rotates as indicated by an arrow 74 by the force of the spring 31d and returns to its original position in contact with the stopper 31e.

As described above, the door in the present embodiment has a transmission mechanism that interlocks the deadbolt 10 and the deadbolt 20, and a configuration in which the latch strike body 31 is displaced to release the latch and open the door body 3. When opening the door body 3 from the locked state of the door body 3, the opening operation can be simplified by performing a two-step operation of unlocking the door body 57 and pushing (or pulling) the door body. In addition, other than the operation for releasing the lock by the lock mechanisms 6 and 7, the operation for releasing the latch is not required, and the handle and operation lever dedicated to releasing the latch are not required. Realization of noiseless design becomes easy. In addition, even when parts or parts such as a handle held by a person are provided on the door body, they can be arranged without being restricted by the position of the latch lock case, so parts or parts in various positions and shapes can be provided. This makes it possible to improve the degree of freedom in designing the door body.

Further, in the present embodiment, a transmission mechanism for transmitting force to move the deadbolts 10 and 20 of the lock mechanism portions 6 and 7 and the latch mechanism portion 8, that is, the second transmission members 16 and 26 and the pinion 55 and first transmission members 14 and 24 . Further, a transmission mechanism for interlocking the locking and unlocking of the lock mechanisms 6 and 7 with the latch mechanism 8, that is, a transmission mechanism including a lever 58 for interlocking the center shaft 54 and the latch bolt 30 is provided. Therefore, a common operating portion for operating the plurality of deadbolts 10 and 20 and the latchbolt 30 is provided. Therefore, the deadbolts 10 and 20 and the latch bolt 30 can be operated with one operating force, which facilitates the operation.

14A and 14B are diagrams showing the positional relationship at each stage of the locked state by the dead bolts 10 and 20 and the latch bolt 30. FIG. FIG. 14A shows a state in which the latch bolt 30 of the latch mechanism 8 is locked by the latch strike 31, and the dead bolts 10 and 20 of the lock mechanisms 6 and 7 are locked by the dead strikes 11 and 21, respectively. This is the first position where it is in a closed state. In this first position, as indicated by S1 in FIG. 13, the position of the key hole 51a is turned counterclockwise to the maximum, so that the center shaft 54 is turned to the maximum counterclockwise. 2 shows the positions of the constituent members of the mechanism units 6, 7 and 8 at the time.

FIG. 13 is a diagram showing the operating position of the key hole 51a for operating the center shaft of the cylinder unit of this embodiment. As shown in FIG. 13, a first operating position S1, a second operating position S2 and a third operating position S3 are set as operating positions of the keyhole.

FIG. 14B shows a state in which the latch bolt 30 of the latch mechanism 8 is locked by the latch strike 31, and the dead bolts 10 and 20 of the lock mechanisms 6 and 7 are not engaged with the dead strikes 11 and 21, respectively. This is the second position, which is the stop state. This is the position where the keyhole 51a is turned clockwise from the first position S1, and the center shaft 54 is turned clockwise, as indicated by S2 in FIG.

FIG. 14(C) shows a state in which the latch bolt 30 of the latch mechanism 8 is unlocked by the latch strike 31, and the dead bolts 10 and 20 of the lock mechanisms 6 and 7 are engaged with the dead strikes 11 and 21, respectively. This is the third position in which it is in the unlocked state. As indicated by S3 in FIG. 13, this is a position in which the key hole 51a is fully rotated clockwise and the center shaft 54 is thus fully rotated clockwise. Such change of the first to third positions is performed by operating the key 53 or the thumb-turn 57 .

As described above, in the present embodiment, the strike body 31c of the latch strike 31 is made movable so that the latch can be released without an operation for unlocking the latch. As shown in (C), there is provided a third position, ie, a position where the latch can be released regardless of the position of the strike body 31c. Therefore, even if the strike main body 31c is no longer displaced due to a failure of the spring 31d or the like, the latch can be released. That is, even if the strike body 31c does not move at the position where the strike body 31c is engaged with the latch bolt 30, the latch bolt 30 can be retracted to a position where it does not engage with the strike body 31c.

As for the operation positions S1, S2, and S3 of the keyhole 51a, a fourth operation position is further provided between the operation positions S1 and S2, and if the fourth operation position is not reached, the key cannot be pulled out. It may be a structure without

<Second embodiment>
FIG. 15 shows fittings showing a second embodiment of the present invention, in which lock mechanism portions 6 and 7 and a latch mechanism portion 8 are provided on a door leading side vertical frame 2x constituting a frame body 2. As shown in FIG. Also in this embodiment, the deadbolts 10 and 20 of the locking mechanisms 6 and 7 can have the same structure as in the first embodiment. Also, as the latch mechanism portion 8, a structure similar to that of the first embodiment having the cylinder unit 50 can be used. Furthermore, a similar structure can be used for the transmission mechanism including the pinion 55, the first transmission members 14 and 24, the second transmission members 16 and 26, and the like.

<Third Embodiment>
FIG. 16 shows fittings according to a third embodiment of the present invention, in which lock mechanism portions 6x and 7x and a latch mechanism portion 8x can be driven by an electric motor 87 provided in a drive unit 82. FIG. In this example, a transmission member 86 such as a bar is provided for transmitting power between the lock mechanisms 6x and 7x, or between the lock mechanisms 6x and 7x and the latch mechanism 8x. Further, the transmission member 86 is provided with a rack 86a, and has a configuration in which an electric motor 87 drives a pinion 88 meshing with the rack 86a.

The means for transmitting force from the electric motor 87 to the bar is not limited to the illustrated one. A reduction gear with a pinion 88 attached to the output shaft can be used. Furthermore, a pinion (not shown) provided on the output shaft of the speed reducer of the electric motor 87 may be meshed with the pinion 88 shown in the figure.

The operation of the electric motor 87 is controlled by a control unit 83 connected by a wiring 84 . The control unit 83, for example, by reading a card, gives a signal instructing the electric motor 87 to drive and stop, and locks and unlocks the lock mechanisms 6x and 7x together with the latch mechanism 8x. be.

The lock mechanisms 6x and 7x having the same basic structure as the lock mechanisms 6 and 7 shown in the first embodiment can be used. That is, the deadbolts 10x and 20x are interlocked, and the latch bolt 30x is also interlocked. The dead strikes 11x and 21x can also have the same structure as the dead strikes 11 and 21 of the first embodiment. A strike main body 31c to which force is applied to the locking side by a spring 31d or the like shown in FIG. 12 can also be used for the latch strike 31x. In this example, the drive unit 82 including the electric motor 87 is provided on the sleeve 4, but it may be provided on the door tip side vertical frame 2x as shown in FIG.

When carrying out the present invention, the dead bolts 10 (10x) and 20 (20x) and the latch bolt 30 (30x) are provided on the door body 3 side, and the dead strikes 11 (11x) and 21 (21x) and the latch strike 31 (31x) may be provided on the sleeve 4 or door-end vertical frame 2x.

However, in each of the above embodiments, the deadbolts 10 (10x) and 20 (20x) and the latch bolt 30 (30x) are provided on the door leading side vertical frame 2x or the side of the sleeve 4, and the dead strikes 11 (11x) and 21 (21x) and latch strike 31 (31x) are provided on the door body 3 side.

Thus, if the deadbolts 10 (10x) and 20 (20x) and the latch bolt 30 (30x) are provided on the door tip side vertical frame 2x or the sleeve 4, there is no need to provide electric wiring on the door body 3. becomes. As a result, the number of parts for electrical connection between the frame 2 and the door 3 can be reduced, and the manufacturing cost can be reduced. That is, since the door body 3 is a member that moves via the hinge 5, when an electric wiring is to be provided inside the door body 3, the hinge 5 is a part that can be energized, or the door body 5 is a non-contact type. Although it is necessary to provide a charging device, such parts are not required in the present embodiment. In addition, even when the electric motor 87 is used, the door body 3 is not provided with an electric motor. Cost can be reduced.

In addition, by providing the deadbolts 10 (10x) and 20 (20x) and the latch bolt 30 (30x) on the side of the sleeve 4, the fittings can be upgraded without replacing the frame 2. , the sleeve 4 and the door body 3 can be replaced, so the introduction cost thereof can be suppressed.

Further, as shown in FIG. 16, if an electric motor 87 is provided in place of or in addition to the operating portion such as the thumb-turn 57, a plurality of locking mechanisms can be operated with the electric motor 87 at one location. , the number of parts can be omitted. Moreover, the wiring can be simplified compared to using a plurality of electric motors, and the man-hours at the time of manufacturing can be reduced.

Although the present invention has been described with reference to the embodiments, when the present invention is carried out, it is possible to make modifications such as providing three locking mechanisms. As a structure for driving the lock mechanisms 6 and 7 and the latch mechanism 8, other power transmission mechanisms such as a link type or a cam type can be used. In addition, the specific implementation of the present invention is not limited to the above description, and various modifications and additions are possible.

1: Fittings 2: Frame body 3: Door body 4: Sleeves 6, 6x, 7, 7x: Lock mechanism parts 8, 8x: Latch mechanism parts 10, 20: Deadbolts 11, 21, 31: Strikes 12, 22: Dead Lock cases 14, 24: first transmission member (transmission member)
16, 26: Second transmission member (transmission member)
30: Latch bolt 31c: Strike body (receiving member)
31d: Spring 32: Latch lock case 50: Cylinder unit 53: Key 54: Center shaft 87: Electric motor

Claims (6)

a frame provided at the opening of the building;
A fitting comprising a door body attached to the frame body so as to be openable and closable,
a plurality of lock mechanism units for locking the door body in a closed state;
a latch mechanism that latches the door when the door is closed;
a transmission mechanism provided between the plurality of lock mechanism portions and transmitting a force to move each deadbolt of the plurality of lock mechanism portions;
The locking mechanism has a deadbolt and a deadstrike for inserting the deadbolt,
The latch mechanism has a latch bolt and a latch strike into which the latch bolt is inserted,
The latch strike has a receiving member for holding the latch bolt and a spring that biases the receiving member to a position where the latch bolt can be locked by the receiving member ,
the receiving member is rotatably attached to the latch strike by a force received from the latch bolt;
When a force acts on the door body in a direction to open the door body from a state in which the receiving member engages the latch bolt, the receiving member rotates against the force of the spring, and the receiving member rotates. The fitting, wherein the locking of the latch bolt is released .
further comprising a transmission mechanism for transmitting force to move the dead bolt of the lock mechanism and the latch bolt of the latch mechanism;
The joinery according to claim 1, comprising a common operating portion for operating said latchbolt and said deadbolt. The operation unit is provided in a thumb-turn mechanism that operates when a key or thumb-turn is operated,
The operating section has a first operating position, a second operating position and a third operating position as positions for operating the thumb-turn mechanism,
The first operating position is a position where the latch bolt of the latch mechanism is in a locked state with the latch strike and the dead bolt of the lock mechanism is in a locked state with the dead strike,
the second operating position is a position in which the latch bolt of the latch mechanism is in a locked state with the latch strike and the dead bolt of the lock mechanism is in a non-locked state with the dead strike;
The third operating position is a position in which the latch bolt of the latch mechanism portion is in a non-locked state with the latch strike and the dead bolt of the lock mechanism portion is in a non-locked state with the dead strike. The fitting according to claim 2. The dead strike of the lock mechanism and the latch strike of the latch mechanism are provided on the door tip side of the door body,
A dead lock case for accommodating the dead bolt of the lock mechanism and a latch lock case for accommodating the latch bolt of the latch mechanism are provided on the vertical frame of the frame. 4. The fitting according to any one of 3. The fitting further comprises a sleeve fixed to the frame,
The dead strike of the lock mechanism and the latch strike of the latch mechanism are provided on the door tip side of the door body,
4. The sleeve according to any one of claims 1 to 3, wherein a dead lock case for accommodating the dead bolt of the lock mechanism and a latch lock case for accommodating the latch bolt of the latch mechanism are provided on the sleeve. fittings described in . The fitting according to any one of claims 2 to 5, further comprising an electric motor for moving the transmission mechanism instead of or in addition to the operation part.

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