JP2024043794A - Locking and unlocking devices, box locks and doors - Google Patents

Abstract

[Problem] To provide a locking/unlocking device, a box lock, and a door that can save space. [Solution] The device has a locking/unlocking unit 5 that is locked when rotation is restricted and unlocked when rotation is permitted, a manual rotation unit 6 that rotates by manual operation to switch the locking/unlocking unit 5 between the locked and unlocked states, and an electric rotation unit 7 that rotates by electric operation to switch the locking/unlocking unit 5 between the locked and unlocked states, and the rotation shafts of the locking/unlocking unit 5, the manual rotation unit 6, and the electric rotation unit 7 are coaxially arranged. [Selected Figure] Figure 5

Description

This disclosure relates to a locking/unlocking device, a box lock, and a door.

An electric locking/unlocking device that uses electricity to lock and unlock is known. In the locking/unlocking device disclosed in Patent Document 1, the rotation of a worm gear attached to the output shaft of a drive motor is transmitted to a rotating part via multiple gears, and the rotation of the rotating part moves the deadbolt to lock and unlock the door. Even in a box lock in which a locking/unlocking device and a door latch device are provided inside a housing, an electric locking/unlocking device may be provided in addition to a manual type.

JP 2018-44393 A

Electric locking/unlocking devices have more parts than manual locking/unlocking devices and require more installation space. Electric locking/unlocking devices have a different design from manual locking/unlocking devices, so they share few parts in common with manual locking/unlocking devices. When installing an electric locking/unlocking device on a box lock, the housing must be larger than when only a manual locking/unlocking device is installed. When the housing cannot be made larger, such as during renovations, it is necessary to remove the door latch device from the box lock and install a door latch device separately from the box lock. For this reason, there is a demand for space-saving locking/unlocking devices installed inside the box lock.

An object of the present disclosure is to provide a locking/unlocking device, a box lock, and a door that can save space.

In order to achieve the above object, a locking/unlocking device according to the present disclosure includes a locking/unlocking part that enters a locked state when rotation is restricted and enters an unlocked state when said rotation is allowed, and a locking/unlocking part that is rotated by manual operation and that enters a locked state when said rotation is permitted. The locking/unlocking part has a manual rotating part that switches between a locked state and an unlocked state of the locking/unlocking part, and an electric rotating part that rotates by electric operation and switches between a locked state and an unlocked state of the locking/unlocking part. The rotating shaft of the manual rotating section, the rotating shaft of the electric rotating section, and the rotating shaft of the electric rotating section are arranged coaxially.

To achieve the above object, the box lock according to the present disclosure has a housing and a locking/unlocking device housed inside the housing, the locking/unlocking device having a locking/unlocking section that is in a locked state when rotation is restricted and in an unlocked state when rotation is permitted, a manual rotation section that rotates by manual operation to switch between the locked and unlocked states of the locking/unlocking section, and an electric rotation section that rotates by electric operation to switch between the locked and unlocked states of the locking/unlocking section, and the rotation shaft of the locking/unlocking section, the rotation shaft of the manual rotation section, and the rotation shaft of the electric rotation section are arranged coaxially.

In order to achieve the above object, a door according to the present disclosure includes the box lock described above.

FIG. 2 is a perspective view of the door and lock; It is a perspective view of a box lock. FIG. 1 is a front view of the box lock with the handle gear in a closed position and the latch bolt in a closed position. FIG. 1 is a front view of the box lock with the handle gear in the open position and the latch bolt in the open position. It is an exploded perspective view of a box lock seen from the indoor side. FIG. 3 is a perspective view of the locking/unlocking section viewed from the outside. FIG. 4 is a front view of the lock box in a locked state by the manual rotation portion. 1 is a front view of the box lock in a locked state by an electric rotating unit. FIG. FIG. 3 is a view of the manual rotation member and the torsion coil spring as seen from the outside of the room. FIG. 4 is a perspective view of the manual rotation restraint portion as viewed from the outside of the room. 13 is a view of the manual rotation portion in the locked state as seen from the inside of the vehicle. FIG. 13 is a view of the manual rotation part in the locked state as seen from the outside of the room. FIG. 11A and 11B are diagrams showing the manual rotation part in positions between a locked state and an unlocked state as viewed from the outside of the room. FIG. 3 is a view of the manual rotation unit in an unlocked state as seen from the indoor side. 13 is a view of the manual rotation part in the unlocked state as seen from the outside of the room. FIG. FIG. 3 is a front view of the electric rotating unit in an unlocked state. FIG. 3 is a perspective view of the electric rotating unit in an unlocked state. FIG. FIG. 3 is a perspective view of the electric rotating section in a locked state. FIG. 2 is a front view of a locking/unlocking device that does not include an electric rotating section but includes a manual rotating section. FIG. 2 is a perspective view of a locking/unlocking device provided with a manual rotation part without providing an electric rotation part.

As shown in FIG. 1, the box lock 1 is attached to the end of the door 11 on the door tip side of the hinged door provided in the opening. In the following description, the horizontal direction along the surface of the door 11 is referred to as the door width direction. In the drawings, the door width direction is indicated by the arrow X. The door 11 opens and closes the opening by rotating around an axis provided on one side of the door width direction and extending in the vertical direction. In the door width direction, the side where the door 11 has its hinge is indicated as the hinge side, and the side where the door tip of the door 11 is indicated as the door tip side. In the drawings, the vertical direction is indicated by the arrow Z. The direction connecting one side and the other side of the door 11 is indicated as the indoor/outdoor direction. In the drawings, the indoor/outdoor direction is indicated as the Y direction. In the indoor/outdoor direction, the side where the door 11 has its one side facing the outside when the door 11 closes the opening is indicated as the outdoor side, and the side where the door 11 has its other side facing the inside when the door 11 closes the opening is indicated as the indoor side. In Figure 1, the front side of the door 11 is the inside side of the room, and the back side of the door 11 is the outside side of the room.

As shown in Figures 1 to 3, the box lock 1 has a housing 21, a front plate 22, a front plate cover 25, a door latch device 3, and a locking/unlocking device 4, and is fixed to the door 11 by a set screw 261 and a set screw 262. The door latch device 3 and the locking/unlocking device 4 are provided inside the housing 21. The housing 21 opens to the inside of the room. A control board 13 is provided inside the housing 21. The control board 13 may be a control board that controls the electric motor 9 of the locking/unlocking device 4, or a control board when an electric motor is connected to the handle hub 34 for motorization.

The front plate 22 is provided at the end of the housing 21 on the door-edge side. The front plate 22 has a hole 221 formed therethrough in the door width direction. The front plate cover 25 is arranged so as to cover the entire surface of the front plate 22 on the door-edge side. The front plate cover 25 is provided along the end surface of the door 11 on the door-edge side. The front plate cover 25 has a hole 251 formed therethrough in the door width direction. The hole 251 of the front plate cover 25 and the hole 221 of the front plate 22 overlap in the door width direction. The latch 311 of the latch bolt 31 of the door latch device 3 is inserted into these hole 221 and hole 251. The front plate 22 corresponds to the plate portion in the claims. The front plate cover 25 corresponds to the cover portion in the claims.

The lock/unlock device 4 is a thumb turn lock, and can be operated manually as well as electrically. The locking/unlocking device 4 locks/unlocks by restricting movement of the latch bolt 31. The thumb turn 41 of the thumb turn lock is shown in FIG.

As shown in FIGS. 2 and 3, the door latch device 3 includes a latch bolt 31, a rack gear section 32, a door handle 33, a handle hub 34, and a handle gear section 35. Door handle 33 is shown in FIG. The latch bolt 31 and the rack gear portion 32 extend in the width direction. The latch bolt 31 and the rack gear portion 32 are movable in the door width direction between a closed position shown in FIG. 3 and an open position shown in FIG. 4, respectively. In both the closed position and the open position, the latch 311 is inserted into the hole 221 of the front plate 22 and the hole 251 of the front plate cover 25. The amount of protrusion of the latch 311 from the front plate cover 25 toward the door end is larger when the latch 311 is placed in the closed position than when it is placed in the open position. The closed positions of the latch bolt 31 and the rack gear part 32 are located closer to the door than the open positions.

As shown in FIG. 3, when the latch bolt 31 is placed in the closed position with the door 11 closing the opening, the latch 311 of the latch bolt 31 is inserted into the strike 12 of the door frame. This restricts the opening/closing movement of the door 11. As shown in FIG. 4, when the latch bolt 31 is placed in the open position with the door 11 closing the opening, the latch 311 is disengaged from the strike 12 of the door frame. This allows the door 11 to be opened and closed. The amount of protrusion of the latch 311 from the front plate cover 25 when placed in the open position is small. When the door 11 closes the opening, the protruding portion of the latch 311 from the front plate cover 25 placed in the open position is placed in the gap between the door frame and the door 11, and is attached to the strike 12 of the door frame. is not inserted.

When the rack gear part 32 moves from the closed position to the open position, i.e., toward the hanging side, it pushes the latch bolt 31 toward the hanging side and places it in the open position. A compression spring 312 is provided between the end of the latch bolt 31 on the hanging side and the wall part of the housing 21. When the latch bolt 31 is placed in the open position, the compression spring 312 is compressed and pushes the latch bolt 31 toward the door end by its restoring force. Since the latch bolt 31 is pushed toward the hanging side by the rack gear part 32 in the open position, it is placed in the open position even if it is pushed toward the door end by the compression spring 312. When the rack gear part 32 moves from the open position to the closed position, i.e., toward the door end, it does not push the latch bolt 31 toward the hanging side. When the rack gear part 32 returns to the closed position, the latch bolt 31 is restored to the closed position by the restoring force of the compression spring 312.

The latch bolt 31 is freely rotatable in the radial direction relative to the rack gear portion 32 before the front plate cover 25 is attached. The hole 221 of the front plate 22 has a shape that allows the inserted latch bolt 31 to freely rotate in the axial radial direction. The hole 251 of the front plate cover 25 has a shape that restricts rotation of the inserted latch bolt 31 in the axial radial direction. If the latch bolt 31 is not inserted into the hole 251 of the front plate cover 25 but inserted only into the hole 221 of the front plate 22, the latch bolt 31 will not be inserted into the hole 251 of the front plate 22 even if it rotates in the axial radial direction. It does not interfere with the edge of the portion 221. If the latch bolt 31 is inserted into the hole 251 of the front plate cover 25 and tries to rotate in the radial direction, it will interfere with the edge of the hole 251 of the front plate cover 25 and its rotation will be restricted. Ru.

When constructing the box lock 1, the latch bolt 31 is rotated in the axial radial direction with the front plate cover 25 not attached, and the orientation of the latch bolt 31 is adjusted in accordance with the opening direction of the door 11. After adjusting the orientation of the latch bolt 31, the front plate cover 25 is attached to restrict rotation of the latch bolt 31 in the axial radial direction. After adjusting the direction of the latch bolt 31 to a desired direction, the rotation of the latch bolt 31 in the axial radial direction is restrained, so that the latch bolt 31 does not rotate in the axial radial direction and prevent the opening and closing of the door 11.

A set screw through hole is formed in the front plate 22, through which a set screw 261 and a set screw 262 pass through in the door width direction. The front plate cover 25 is provided with a protrusion having a hollow hole that protrudes toward the hanging base and is fitted into a set screw hole. When installing the box lock 1 on the door 11, follow the steps below. The box lock 1 is placed at the installation position of the door 11, the door end side surface of the front plate 22 is covered with the front plate cover 25, and the protruding part of the front plate cover 25 is fitted into the set screw hole of the front plate 22. The setscrews 261 and 262 are passed through the hollow holes of the protrusion and fastened. By doing this, the box lock 1, the door 11, and the front plate cover 25 are fixed. The set screw 261 and the set screw 262 may be countersunk screws, pan head screws, truss screws, low profile screws, flat screws, etc., and the types of screws are not limited. The shapes of the screw head holes of the set screws 261 and 262 are also not limited and may be positive, minus, hexagonal, hexalobular, or the like.

The door handle 33, the handle hub 34, and the handle gear part 35 can rotate together around the axis 332 of the shaft part 331 of the door handle 33 between the closed position shown in FIG. 3 and the open position shown in FIG. An axis 332 of the shaft portion 331 of the door handle 33 extends in the indoor-outdoor direction.

The rack gear portion 32 has linear tooth profiles extending in the width direction on each of the lower edge and the upper edge. The tooth shape of the lower edge of the rack gear portion 32 is referred to as an opening/closing rack gear 321. The tooth profile on the upper edge of the rack gear portion 32 is referred to as a lock/unlock rack gear 322. A tooth profile is formed on the outer periphery of the upper part of the handle gear part 35 along the axis 332 of the shaft part 331 of the door handle 33. The tooth profile of the handle gear portion 35 is referred to as a handle gear 351.

The handle gear section 35 is arranged below the rack gear section 32. The handle gear 351 meshes with the opening/closing rack gear 321. When the door handle 33 is operated and the handle gear portion 35 rotates around the axis 332, the handle gear 351 rotates, the opening/closing rack gear 321 moves in the door width direction, and the rack gear portion 32 moves in the door width direction. By rotating around the axis 332 and changing its attitude, the handle gear section 35 can place the rack gear section 32 in a closed position and an open position. Among the postures of the handle gear section 35, the posture in which the rack gear section 32 shown in FIG. 3 is disposed in the closed position is referred to as a closed posture. Among the postures of the handle gear section 35, the posture in which the rack gear section 32 shown in FIG. 4 is disposed in the open position is referred to as an open posture. The handle gear 351 of the handle gear part 35 in the closed position is arranged closer to the door end than the handle gear 351 of the handle gear part 35 in the open position.

When the door 11 is in a state where the opening is closed, the locking/unlocking device 4 locks the door by restraining the rack gear portion 32 in the closed position and placing the latch bolt 31 in the closed position, and unlocks the door by allowing the rack gear portion 32 to move in the door width direction. In the following, the state where the locking/unlocking device 4 restrains the rack gear portion 32 in the closed position and places the latch bolt 31 in the closed position is referred to as the locked state, and the state where the rack gear portion 32 is allowed to move in the door width direction is referred to as the unlocked state. The posture and position of the members that make up the locking/unlocking device 4 change between the locked state and the unlocked state. The posture and position of each member that brings the door into the locked state is referred to as the locked posture and locked position, and the posture and position that brings the door into the unlocked state is referred to as the unlocked posture and unlocked position.

As shown in Figures 2, 3 and 5, the locking/unlocking device 4 has a locking/unlocking unit 5, a manual rotation unit 6, an electric rotation unit 7 and an electric motor 9. The locking/unlocking unit 5 is a rotatable member. The locking/unlocking unit 5 rotates between a locked position and an unlocked position. The manual rotation member 61 of the manual rotation unit 6 rotates by manual operation to switch between the locked position and the unlocked position. The electric rotation member 7 rotates by electric operation to switch between the locked position and the unlocked position of the locking/unlocking unit 5. The rotation shaft of the locking/unlocking unit 5, the rotation shaft of the manual rotation member 61 and the rotation shaft of the electric rotation unit 7 each extend in the indoor/outdoor direction and are arranged coaxially. The rotation shaft of the locking/unlocking unit 5, the rotation shaft of the manual rotation member 61 and the rotation shaft of the electric rotation unit 7 are all referred to as the rotation shaft 4a.

As shown in FIGS. 5 and 6, the lock/unlock section 5 includes a lock/unlock plate section 51, a first protrusion 52, and a second protrusion 53. The lock/unlock plate portion 51 is a sector gear. The lock/unlock plate part 51 is flat and has a fan-shaped plate surface. The locking/unlocking plate portion 51 has a tooth shape 511 formed on an edge corresponding to a fan-shaped arc. The tooth profile 511 formed on the lock/unlock plate portion 51 is referred to as a fan-shaped gear 511. The locking/unlocking plate portion 51 is arranged with the plate surface facing the indoor/outdoor direction. A circular hole 512 passing through the plate surface is formed in a portion of the lock/unlock plate 51 corresponding to the center of the fan-shaped arc. The rotation axis 4a of the locking/unlocking part 5 is a straight line passing through the center of the hole 512. The lock/unlock plate section 51 is arranged with the hole section 512 on the upper side and the fan-shaped gear 511 on the lower side. That is, the fan-shaped gear 511 is arranged below the rotating shaft 4a. The sector gear 511 rotates by a predetermined angle around the rotation axis 4a below the rotation axis 4a, and moves in the door width direction.

The first protrusion 52 protrudes from near the lower end of the edge of the locking/unlocking plate 51 on the hanging side toward the hanging side and further protrudes outside the room. The second protrusion 53 protrudes from near the upper end of the edge of the locking/unlocking plate 51 on the door end side toward the door end and further protrudes outside the room. The second protrusion 53 is the first rotation restraint section in the claims.

As shown in FIGS. 3 and 4, the lock/unlock section 5 is arranged above the rack gear section 32. As shown in FIGS. The fan-shaped gear 511 of the locking/unlocking plate section 51 meshes with the locking/unlocking rack gear 322 at the upper edge of the rack gear section 32. The lock/unlock section 5 and the rack gear section 32 are interlocked.

The manual rotation unit 6 and the electric rotation unit 7 can restrain the locking/unlocking unit 5 in the locked position. Figure 7 shows the state in which the manual rotation unit 6 restrains the locking/unlocking unit 5 in the locked position. Figure 8 shows the state in which the electric rotation unit 7 restrains the locking/unlocking unit 5 in the locked position. When the locking/unlocking unit 5 is restrained in the locked position, the rack gear unit 32 is restrained in the closed position. When the rack gear unit 32 is restrained in the closed position, the rotation of the door handle 33 is also restrained. When the door 11 is closing the opening, if the rack gear unit 32 is restrained in the closed position, the latch 311 of the latch bolt 31 remains inserted in the strike 12, so the door 11 cannot be opened and is locked.

When the locking/unlocking unit 5 is not restrained in the locked position and is allowed to rotate around the rotation axis 4a, the rack gear unit 32 and latch bolt 31 can be moved to the open position by operating the door handle 33, and the locking/unlocking unit 5 is not locked. The unlocked state is when the locking/unlocking unit 5 is not restrained in the locked position. The sector gear 511 of the locking/unlocking unit 5 in the locked position shown in Figures 7 and 8 is positioned at the end of the movable range on the door edge side. When the locking/unlocking unit 5 in the locked position rotates a specified angle around the rotation axis 4a so that the sector gear 511 faces the hanging side, it becomes in the unlocked position.

As shown in FIG. 5, the manual rotation section 6 includes a manual rotation member 61, a torsion coil spring 62, and a manual rotation restriction section 8. As shown in FIGS. 5 and 9, the manual rotation member 61 includes a thumbturn shaft connecting portion 63, an arm portion 64, a flange portion 65, and a first spring attachment portion 66. The first spring attachment portion 66 is shown in FIG. The thumbturn shaft connecting portion 63, the arm portion 64, the flange portion 65, and the spring attachment portion 66 are integrally formed members. The manual rotation restriction section 8 is interlocked with the arm section 64. The manual rotation restraint section 8 is a second rotation restraint section in the claims.

The thumbturn shaft connecting portion 63 has a cylindrical shape. The thumbturn shaft connecting portion 63 has a hole 631 into which the shaft of the thumbturn 41 is inserted. The thumb-turn shaft connecting portion 63 is arranged with its axis extending in the indoor-outdoor direction. The manual rotation member 61 is rotatably supported around the rotation axis 4a of the manual rotation section 6. The rotation axis of the manual rotation member 61 is also referred to as the rotation axis 4a. The rotating shaft 4a of the manual rotating member 61 is the central axis of the thumbturn shaft connecting portion 63. As shown in FIGS. 2 and 5, the thumbturn shaft connecting portion 63 is inserted into the hole 512 of the locking/unlocking portion 5. As shown in FIGS. As described above, the manual rotation member 61 is arranged coaxially with the locking/unlocking part 5. The manual rotation member 61 is rotatable relative to the locking/unlocking part 5 around the rotation axis 4a.

As shown in Figures 5 and 9, the arm portion 64 protrudes from a portion near the edge of the thumbturn shaft connecting portion 63 on the outdoor side in a radial direction perpendicular to the central axis of the thumbturn shaft connecting portion 63. The flange portion 65 protrudes from a portion of the edge of the thumbturn shaft connecting portion 63 on the outdoor side in a radial direction perpendicular to the axis of the thumbturn shaft connecting portion 63, i.e., the rotation axis 4a. The arm portion 64 and the flange portion 65 are adjacent to each other in the circumferential direction of the thumbturn shaft connecting portion 63. The arm portion 64 protrudes radially outward beyond the flange portion 65.

As shown in FIG. 9, the first spring mounting portion 66 is provided so as to protrude from the outdoor surface of the flange portion 65 toward the outdoor side. The first spring mounting portion 66 is cylindrical. The first spring mounting portion 66 is arranged so as to extend in the indoor/outdoor direction. One end 621 of the torsion coil spring 62 is attached to the first spring mounting portion 66. As shown in FIG. 5 and FIG. 7, the other end 622 of the torsion coil spring 62 is attached to the second spring mounting portion 211 provided on the housing 21.

The manual rotation restraint section 8 moves up and down in conjunction with the rotation of the arm section 64. As shown in FIG. 7, when the manual rotation restraint section 8 is positioned at the lower end position in its movable range, it is positioned on the rotation path of the first protrusion 52 of the locking/unlocking section 5. When the manual rotation restraint section 8 is positioned at the lower end position, the locking/unlocking section 5 is in the locked position. When the manual rotation restraint section 8 is positioned at the lower end position, it comes into contact with the first protrusion 52 of the locking/unlocking section 5 in the locked position from the hanging side. When the locking/unlocking section 5 in the locked position comes into contact with the manual rotation restraint section 8, rotation toward the hanging side, i.e., toward the unlocked position, is restrained.

As shown in FIG. 3, when the manual rotation restraint part 8 is placed at the upper end position in the movable range, it is placed out of the rotation orbit of the first protrusion 52 of the locking/unlocking part 5. When the manual rotation restriction section 8 is placed at the upper end position, rotation of the lock/unlock section 5 is permitted. The lower end position where the manual rotation restraint part 8 is arranged and which restrains the rotation of the locking/unlocking part 5 is referred to as a locked position. The upper end position where the manual rotation restraining part 8 is arranged and the rotation of the locking/unlocking part 5 is not restrained is referred to as an unlocked position.

As shown in Figures 5 and 10, the manual rotation restraint unit 8 has a lower block unit 81, an upper block unit 82, a pin 83, and a guided unit 84. The pin 83 is shown in Figure 10. The lower block unit 81 is disposed below the upper block unit 82. The lower block unit 81, the upper block unit 82, the pin 83, and the guided unit 84 are integrally formed members.

As shown in FIG. 10, the lower block portion 81 has a step portion 817 formed on the hanging base side. The end face 812 on the hanging base side above the step portion 817 of the lower block portion 81 protrudes further toward the hanging base side than the end face 815 on the hanging base side below the step portion 817. The downward surface that is disposed in the vertical middle of the hanging base side of the lower block portion 81 and forms the step portion 817 is referred to as the step portion lower surface 818.

The upper block part 82 has smaller dimensions than the lower block part 81 in the indoor/outdoor direction and the door width direction. An end surface 813 on the indoor side of the lower block part 81 is arranged closer to the indoor side than an end surface 823 on the indoor side of the upper block part 82. The end surface of the outdoor side 814 of the lower block part 81 is arranged closer to the outdoor side than the end face 824 of the upper block part 82 on the outdoor side. The upper end surface 815 of the lower block part 81 is exposed on the outdoor side and the indoor side of the upper block part 82. A corner 816 formed by the upper end surface 815 of the lower block portion 81 and the end surface 811 on the door tip side is an arcuate surface that projects toward the door tip side and above.

The pin 83 projects toward the outdoor side from the outdoor side surface 824 of the upper block portion 82 . The pin 83 is provided at an intermediate portion of the upper block portion 82 in the vertical direction. The pin 83 and the upper end surface 815 of the lower block part 81 on the outdoor side than the upper block part 82 are separated from each other in the vertical direction. The arm portion 64 is inserted between the pin 83 and the upper end surface 815 of the lower block portion 81. The space between the pin 83 and the upper end surface 815 of the lower block portion 81 is referred to as an arm insertion portion 85.

The guided portion 84 is provided on both the indoor and outdoor sides of the lower block portion 81. The guided portion 84 on the indoor side of the lower block portion 81 protrudes indoors from 813 on the indoor side of the lower block portion 81. The guided portion 84 on the outdoor side of the lower block portion 81 protrudes outdoors from 814 on the outdoor side of the lower block portion 81. The guided portion 84 is inserted into a guide groove portion 212 provided in the housing 21 shown in FIG. 5. The guide groove portion 212 extends in the vertical direction. The manual rotation restraint portion 8 moves vertically along the guide groove portion 212.

As shown in FIGS. 11 and 12, when the manual rotation restraint section 8 is placed in the unlocked position, the arm section 64 of the manual rotation section 6 is inserted into the arm insertion section 85 from the door edge side. The manual rotation member 61 is in a posture in which the arm portion 64 protrudes from the thumbturn shaft connecting portion 63 toward the door end side. In this state, the pin 83 rests on the arm portion 64. Thereby, the manual rotation restraint part 8 is maintained in the unlocked position, that is, in the upper end position.

When the manual rotation member 61 rotates from this state so that the arm portion 64 faces downward as shown in FIG. 13, the upper end surface 815 of the lower block portion 81 is pushed downward, and the pin on the arm portion 64 also moves downward, so that the manual rotation constraint portion 8 moves downward. As shown in FIG. 14 and FIG. 15, when the arm portion 64 further rotates downward, the arm portion 64 comes out of the arm insertion portion 85 of the manual rotation constraint portion 8, which has moved downward together with the arm portion 64. When the arm portion 64 comes out of the arm insertion portion 85, the step lower surface 818 of the manual rotation constraint portion 8 comes into contact with the upward stopper surface 213 provided on the housing 21, and the downward movement stops. This allows the manual rotation constraint portion 8 to be stably maintained in the locked position, i.e., in the lower end position.

When the thumb turn 41 is operated and the manual rotation member 61 rotates from the locked position to the unlocked position, the arm portion 64 moves from the lower side to the upper side. When the arm section 64 is rotated through a predetermined angle, it enters the arm insertion section 85, and when it is further rotated upward, the manual rotation restraint section 8 is moved upward by pushing up the pin 83, and is placed in the unlocked position. do. The manual rotation restraint part 8 placed in the unlocked position is placed such that the upper end surface 825 of the upper block part 82 is in contact with the downward facing surface 216 of the wall provided in the housing 21, or is placed in a state where a slight gap is left. Ru. This prevents the manual rotation restraint part 8 from coming off the guide groove part 212 and moving above the unlocked position, that is, the upper end position.

The corner portion 641, which is on the lower side when the distal end of the arm portion 64 is in the unlocked position, is an arcuate surface that protrudes toward the distal end and the lower side. As described above, the corner 816 formed by the upper end surface 815 of the lower block portion 81 and the end surface 811 on the door end side is an arcuate surface that projects toward the door end side and above. When the arm part 64 enters between the pin 83 of the manual rotation restraint part 8 and the lower block part 81, and when it comes out of the arm insertion part 85 of the manual rotation restraint part 8, the corner part 641 of the arm part 64 and the lower The corner portion 816 of the side block portion 81 contacts. The corner portion 641 of the arm portion 64 and the corner portion 816 of the lower block portion 81 are arcuate surfaces, so that they catch each other when the arm portion 64 enters the arm insertion portion 85 and comes out of the arm insertion portion 85. You can move smoothly without any problems. The corner portion 641 of the arm portion 64 and the corner portion 816 of the lower block portion 81 may be curved surfaces or corners instead of circular arc surfaces.

When the manual rotation member 61 changes from the unlocked position shown in FIGS. 11 and 12 to the locked position shown in FIGS. 14 and 15, the first spring attachment part 66 approaches the second spring attachment part 211, and the torsion coil spring 62 is compressed. be done. The manual rotation member 61 in the locked position is pushed in the direction of the unlocked position by the restoring force of the torsion coil spring 62. Therefore, when manually operating the thumb turn 41 from the locked position to the unlocked position, the thumb turn 41 can be changed from the locked position to the unlocked position with a small force.

As shown in Figures 3, 5, and 8, the electric motor 9 is disposed such that the shaft portion 91 extends in the width direction. A worm gear 92 is attached to the shaft portion 91 of the electric motor 9. The worm gear 92 rotates together with the rotation of the shaft portion 91 of the electric motor 9.

As shown in Figs. 5 and 16, the electric rotating unit 7 has a cylindrical portion 71 and a gear portion 72 protruding from the outer periphery of the cylindrical portion 71. The cylindrical portion 71 and the gear portion 72 form a worm wheel that rotates in conjunction with the worm gear 92. The worm gear 92 rotates when driven by the electric motor 9. The rotating shaft 4a of the electric rotating unit 7 is the central axis of the cylindrical portion 71.

The gear portion 72 projects from a part of the outer periphery of the cylindrical portion 71 to the outside in the radial direction of the cylindrical portion 71 . The outer circumferential surface of the gear portion 72 is coaxial with the cylindrical portion 71 and is formed into an arc shape having a larger radius of curvature than the cylindrical portion 71 . A tooth profile 723 that meshes with the worm gear 92 is formed on the outer peripheral surface of the gear portion 72 . One end surface of the gear portion 72 in the circumferential direction is referred to as a first end surface 721. The end surface of the gear portion 72 on the other side in the circumferential direction is referred to as a second end surface 722. The first end surface 721 is not a surface along the radial direction, and the outer peripheral end 721a is arranged on the other side in the circumferential direction than the inner peripheral end 721b. The second end surface 722 is also not a surface along the radial direction, and the outer peripheral end 722a is arranged on one side in the circumferential direction than the inner peripheral end 722b.

The thumb turn shaft connecting portion 63 of the manual rotation unit 6 is inserted into the hole portion 711 of the cylindrical portion 71 of the electric rotation unit 7. The electric rotation unit 7 can rotate relative to the locking/unlocking unit 5 and the manual rotation member 61 around the rotation axis. As shown in FIG. 5, the electric rotation unit 7 is disposed on the indoor side of the arm portion 64 and flange portion 65 of the manual rotation member 61. The locking/unlocking plate portion 51 of the locking/unlocking unit 5 is disposed on the indoor side of the electric rotation unit 7. The rotation orbit of the second protrusion portion 53 of the locking/unlocking unit 5 and the rotation orbit of the gear portion 72 of the electric rotation unit 7 partially overlap. The rotation orbit of the first protrusion portion 52 of the locking/unlocking unit 5 and the rotation orbit of the gear portion 72 of the electric rotation unit 7 do not overlap.

The electric rotating part 7 changes from the unlocked position shown in FIGS. 3, 16, and 17, which restricts the permission of the locking/unlocking part 5, to the locked position, which restricts the rotation of the locking/unlocking part 5, shown in FIGS. 8, 18, and 19. It is possible to rotate from . As shown in FIGS. 18 and 19, in the electric rotating part 7 in the locked position, the first end surface 721 of the gear part 72 is located on the door edge side of the cylindrical part 71. The first end surface 721 in the locked position is an inclined surface that gradually goes downward and toward the door end from the inner end 721b toward the outer end 721a. In the electric rotating part 7 in the locked position, the second end surface 722 of the gear part 72 is located on the hanging end side of the cylindrical part 71. The second end surface 722 in the locked position is an inclined surface that gradually goes downward and toward the hanging base from the inner end 722b toward the outer end 722a.

As shown in FIGS. 16 and 17, in the electric rotating part 7 in the unlocked position, the first end surface 721 of the gear part 72 is located closer to the hanger than the end of the cylindrical part 71 on the door tip side. The first end surface 721 in the unlocked position is a vertical surface. In the electric rotating section 7 in the unlocked position, the second end surface 722 of the gear section 72 is located at a height near the upper end of the cylindrical section 71 on the hanging base side of the cylindrical section 71 . The second end surface 722 in the unlocked position is a horizontal surface.

As shown in Figures 8 and 19, when the locking/unlocking unit 5 is in the locked position and the electric rotating unit 7 is in the locked position, the first end face 721 of the electric rotating unit 7 comes into contact with the second protrusion 53 of the locking/unlocking unit 5 from below, at the hanging point. The second protrusion 53 is sandwiched between the first end face 721 and the protrusion 215 that protrudes downward from the upper wall portion 214 of the housing 21. The protrusion 215 is the first restricting portion of the claims. The protrusion 215 restricts the rotation of the locking/unlocking unit 5. When the electric rotating unit 7 is fixed in the locked position, the locking/unlocking unit 5 cannot rotate toward the unlocked position and is constrained in the locked position. This results in a locked state. Even if the locking/unlocking unit 5 is in the unlocked position, when the electric rotating unit 7 rotates from the unlocked position to the locked position, the first end surface 721 of the electric rotating unit 7 comes into contact with the second protrusion 53 of the locking/unlocking unit 5 from below and the hanging point side, and the locking/unlocking unit 5 also rotates together with the electric rotating unit 7 and assumes the locked position.

As shown in FIGS. 3 and 17, the first end surface 721 of the electric rotating part 7 separates from the second protruding part 53 of the locking/unlocking part 5 when the electric rotating part 7 assumes the unlocked position. When the electric rotating part 7 is in the unlocked position, the lock/unlock part 5 can rotate between the locked position and the unlocked position. The second end surface 722 of the electric rotating portion 7 comes into contact with the upper wall portion 214 of the housing 21 when the electric rotating portion 7 is in the unlocked position. When the second end surface 722 of the electric rotating section 7 comes into contact with the upper wall section 214 of the housing 21, the second end surface 722 of the electric rotating section 7 is restrained from further rotating upward. The upper wall portion 214 is a second restriction portion in the claims. The upper wall portion 214 restricts the rotation range of the electric rotating portion 7.

In the locking/unlocking device 4, the rotation shaft of the locking/unlocking unit 5, the rotation shaft of the manual rotating member 61, and the rotation shaft of the electric rotating unit 7 are arranged coaxially. The locking/unlocking device 4 can be made smaller and more space-saving than conventional locking/unlocking devices in which the rotation shaft of the manual rotating unit and the rotation shaft of the electric rotating unit are arranged separately. Both the manual rotating unit 6 and the electric rotating unit 7 restrict the rotation of the locking/unlocking unit 5 to lock it, and allow the rotation of the locking/unlocking unit 5 to unlock it. Common parts are used for locking and unlocking the manual rotating unit 6 and the electric rotating unit 7. This allows the locking/unlocking device 4, the box lock 1, and the door 11 to be made smaller and more space-saving.

The locking/unlocking device 4 can be operated both manually by the manual rotation unit 6 and electrically by the electric rotation unit 7. However, in the locking/unlocking device 4 in which the manual rotation unit 6 and the electric rotation unit 7 can be installed, as shown in Figs. 20 and 21, if the electric rotation unit 7 is not provided and a collar 67 having the same axial length as the electric rotation unit 7 is provided between the locking/unlocking plate unit 51 and the flange unit 65 of the manual rotation member 61 on the manual rotation unit 6, it is possible to make the locking/unlocking device into one that is only manually operated. In cases where electrical operation is not required, an inexpensive locking/unlocking device can be selected by using the above configuration shown in Figs. 20 and 21. However, for example, in the future, when remodeling is performed to add an electrically operated function to a locking/unlocking device that can only be operated manually, the box lock can be replaced as it is as a locking/unlocking device with an electrically operated function, so there is no need for new processing on the door, making it economical.

The locking/unlocking plate portion 51 of the locking/unlocking portion 5 is a sector gear. The locking/unlocking plate portion 51 can be made smaller than a circular gear.

The electric rotating section 7 has a worm wheel that rotates in conjunction with a worm gear 92 attached to the shaft of the electric motor 9. When the worm wheel of the electric rotating part 7 assumes the locked position and comes into contact with the second protrusion 53 of the locking/unlocking part 5, the locking/unlocking part 5 is restrained in the locked position and enters the locked state. The locking/unlocking device 4 does not require a link member or the like to be provided between the worm wheel of the electric rotating section 7 and the locking/unlocking section 5. Therefore, the lock/unlock device 4 can be made smaller and save space.

The manual rotation unit 6 has a manual rotation constraint unit 8 that is interlocked with the arm unit 64 of the manual rotation member 61. When the manual rotation constraint unit 8 is in the locked position, it is positioned on the rotation track of the locking/unlocking unit 5 and constraints the rotation of the locking/unlocking unit 5 to lock it in place. When the manual rotation constraint unit 8 is in the unlocked position, it is positioned at an unlocked position that is off the rotation track of the locking/unlocking device 4 and allows the locking/unlocking unit 5 to rotate to unlock it. The locking/unlocking device 4 does not need to have a link member or the like between the manual rotation member 61 and the locking/unlocking unit 5. This makes it possible to reduce the size and space of the locking/unlocking device 4.

The protrusion 215 of the housing 21 restricts the rotation range of the locking/unlocking unit 5. In other words, the housing 21 can be used as a member that restricts the rotation range of the locking/unlocking unit 5. Compared to a case in which a member that restricts the rotation range of the locking/unlocking unit 5 is provided inside the housing 21 separately from the housing 21, the number of parts in the box lock 1 and the locking/unlocking device 4 can be reduced.

The upper wall portion 214 of the housing 21 regulates the rotation range of the electric rotating section 7. That is, the housing 21 can be used as a member that restricts the rotation of the electric rotating section 7. The number of parts of the box lock 1 and the lock/unlock device 4 can be reduced compared to the case where a member for regulating the rotation of the electric rotating part 7 is provided inside the case 21 and separately from the case 21.

The hole 221 of the front plate 22 is shaped to allow the inserted latch bolt 31 to rotate freely in the radial direction. The hole 251 of the front plate cover 25 is shaped to restrict the rotation of the inserted latch bolt 31 in the radial direction. When installing the box lock 1, the latch bolt 31 can be adjusted to an orientation that matches the opening direction of the door 11 by rotating the latch bolt 31 in the radial direction when the front plate cover 25 is not attached. After adjusting the orientation of the latch bolt 31, the front plate cover 25 is attached to restrict the rotation of the latch bolt 31, thereby preventing the latch bolt 31 from rotating and interfering with the opening and closing of the door 11.

The present disclosure is not limited to the embodiments described above, and can be modified as appropriate. For example, the locking/unlocking plate portion 51 of the locking/unlocking portion 5 may be a circular gear instead of a fan-shaped gear. In both the sector gear and the circular gear, the tooth profile may be spur teeth or helical teeth.

The electric rotating unit 7 may be provided with a paradox planetary gear instead of a worm wheel. When a paradox planetary gear is used, for example, a sun gear rotates when driven by an electric motor, and one of the internal gears provided in two or more stages rotates via the planetary gear. In this way, a locking/unlocking device similar to that described above can be realized. The electric rotating unit 7 may contact a part other than the second protruding part 53 of the locking/unlocking unit 5 to restrain the locking/unlocking unit 5 in the locked position. A member interlocking with the electric rotating unit 7 may contact the locking/unlocking unit 5 to restrain the locking/unlocking unit 5 in the locked position.

In the above embodiment, the worm gear 92 is rotated by the power of the electric motor 9. The worm gear 92 may be rotated by manual operation instead of the electric motor 9. For example, the worm gear 92 may be rotated by manually rotating a grip knob. When the worm gear 92 is rotated by an electric motor using the electric motor 9 or the like, an operation completion signal may be transmitted to notify that the worm wheel has become either the locked position or the unlocked position by the rotation of the worm gear 92. For example, an increase in current when the worm wheel becomes either the locked position or the unlocked position may be detected, and a signal may be transmitted according to the increase in current. A contact sensor that comes into contact with the worm wheel when it becomes either the locked position or the unlocked position may be provided inside the housing 21, and an operation completion signal may be transmitted by the detection of the contact sensor. A magnetic sensor or an optical sensor may be used instead of the contact sensor to detect that the worm wheel has become either the locked position or the unlocked position.

The manual rotation unit 6 may not be provided with the manual rotation restraint unit 8, but may directly contact the locking/unlocking unit 5 to restrain the locking/unlocking unit 5 in the locked position. The configuration in which the manual rotation member 61 moves the manual rotation restraint unit 8 may be other than the above.

The housing 21 has a protrusion 215 that restricts rotation of the locking/unlocking part 5. The first regulating section that regulates the rotation of the locking/unlocking section 5 may be a separate member from the housing 21. The housing 21 has an upper wall portion 214 that restricts rotation of the electric rotating section 7 . The upper wall portion 214 of the housing 21 regulates the rotation range of the electric rotating section 7. The second regulating section that regulates the rotation of the electric rotating section 7 may be a separate member from the housing 21.

Although the box lock 1 is provided on the hinged door 11, it may be provided on a door other than the hinged door. In the above embodiment, the locking/unlocking device 4 locks/unlocks by restricting the movement of the latch bolt 31. The box lock 1 may be provided with a dead bolt, and the lock/unlock section 5 may restrict movement of the dead bolt instead of the rack gear section 32 and the latch bolt 31 to perform locking/unlocking.

The front plate cover 25 may be arranged to cover a portion of the front plate 22 on the door end side. Both the hole 221 of the front plate 22 and the hole 251 of the front plate cover 25 may have a shape that allows the inserted latch bolt 31 to freely rotate in the radial direction. In such a case, it is preferable that the box lock 1 is provided with a member or mechanism that restrains the rotation of the latch bolt 31 in the axial radial direction when the box lock 1 is attached to the door 11. Both the hole 221 of the front plate 22 and the hole 251 of the front plate cover 25 may have a shape that restricts rotation of the inserted latch bolt 31 in the axial radial direction. The front plate cover 25 and the front plate 22 may have forms other than those described above.

1 Box lock, 4 Locking/unlocking device, 4a Rotating shaft, 5 Locking/unlocking part, 6 Manual rotating part, 7 Electric rotating part, 8 Manual rotation restraining part, 9 Electric motor, 11 Door, 21 Housing, 22 Front plate, 25 Front plate cover, 41 thumb turn, 51 locking plate section, 52 first protrusion, 53 second protrusion, 61 manual rotation member, 63 thumb turn shaft connection section, 91 shaft section, 92 worm gear, 214 upper wall section, 215 protrusion Part, 221 Hole, 251 Hole, 511 Sector gear

Claims (9)

a locking/unlocking unit that is in a locked state when rotation is restricted and in an unlocked state when the rotation is permitted;
a manual rotation unit which is rotated by a manual operation to switch between a locked state and an unlocked state of the locking/unlocking unit;
and an electric rotating unit that rotates by electric operation to switch between the locked state and the unlocked state of the locking/unlocking unit.
A locking/unlocking device in which the rotation shaft of the locking/unlocking unit, the rotation shaft of the manual rotation unit, and the rotation shaft of the electric rotation unit are coaxially arranged. The locking/unlocking device according to claim 1, wherein the locking/unlocking portion is a fan-shaped gear. The electric rotating part is
A worm wheel that rotates around the rotation axis in conjunction with a worm gear attached to the shaft of the electric motor,
It is rotatably provided integrally and coaxially with either one of the electric rotating part and the locking/unlocking part, and when the electric rotating part takes the posture of locking the locking/unlocking part, it comes into contact with the other and locks the locking/unlocking part. A first rotation restraining part that restrains the rotation of the locking part and separates from the other and allows the rotation of the locking and unlocking part when the electric rotating part assumes a posture in which the locking and unlocking part is in an unlocked state. The locking/unlocking device according to 1 or 2. The manual rotation part is
a thumbturn shaft connecting portion to which a thumbturn shaft is connected and rotates around the rotational axis;
an arm portion that protrudes from the outer periphery of the thumbturn shaft connecting portion and is rotatable integrally and coaxially with the thumbturn shaft connecting portion;
a second rotation restraint part interlocking with the arm part,
The second rotation restraining part is arranged on the rotational trajectory of the locking and unlocking part and restrains the rotation of the locking and unlocking part when the manual rotation part assumes a posture in which the locking and unlocking part is in a locked state. 3. The locking/unlocking device according to claim 1, wherein when the locking/unlocking section assumes a posture that puts the locking/unlocking section into an unlocked state, the locking/unlocking section moves out of a rotation orbit of the locking/unlocking section and allows rotation of the locking/unlocking section. The locking/unlocking section, the manual rotation section, and the electric rotation section are housed inside a housing of a box lock,
The locking/unlocking device according to claim 1 or 2, wherein the housing includes a first regulating portion that is arranged on a rotational trajectory of the locking/unlocking portion and that regulates a rotation range of the locking/unlocking portion when the locking/unlocking portion comes into contact with the first regulating portion. Device. The locking/unlocking section, the manual rotation section, and the electric rotation section are housed inside a housing of a box lock,
The locking/unlocking according to claim 1 or 2, wherein the casing has a second regulating part that is arranged on a rotational trajectory of the electric rotating part and restricts a rotation range of the electric rotating part when the electric rotating part comes into contact with the second regulating part. Device. A casing and
a locking/unlocking device housed inside the casing;
The locking/unlocking device is
a locking/unlocking part that is in a locked state when the rotation is restrained and becomes an unlocked state when the rotation is allowed;
a manual rotation part that rotates by manual operation and switches the locking/unlocking part between a locked state and an unlocked state;
an electric rotating part that rotates by electric operation and switches the locking and unlocking part between a locked state and an unlocked state;
A box lock in which a rotating shaft of the locking/unlocking part, a rotating shaft of the manual rotating part, and a rotating shaft of the electric rotating part are coaxially arranged. A latch bolt that is provided inside the housing and moves in an axial direction;
A plate portion provided at an end portion of the housing;
A cover portion that covers at least a portion of the plate portion,
The plate portion and the cover portion each have a hole through which the latch bolt passes in the axial direction,
The hole of the plate portion is shaped so that the latch bolt can rotate around the axis of the plate portion.
8. The lock box according to claim 7, wherein the hole of the cover portion is shaped to restrict rotation of the latch bolt about its axis. A door comprising the box lock according to claim 7 or 8.

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