JP6467756B2 - Electric lock - Google Patents

Description

  The present invention relates to an electric lock, and more particularly to an electric lock that includes an electric force input unit, a manual force input unit, and an output unit, and includes a clutch unit that switches between transmission and interruption of power to the output unit.

  Conventionally, an electric lock is known. The electric lock includes a dead bolt and a power source for operating the dead bolt, a control unit that controls the power source, and a power transmission mechanism that transmits power to the dead bolt. The power transmission mechanism includes an electric force input unit, a manual force input unit, and an output unit, a clutch unit that switches between transmission and interruption of power to the output unit, and a power transmission unit, and the power transmitted to the output unit Deadbolt advances and retreats.

  In the conventional electric lock shown in Patent Document 1, when the electric locking / unlocking is performed, the driving gear (51) which is the electric power input portion rotates and is formed on the driving gear (51). The inner end face of the groove (52) pushes the other end (55b) of the drive arm (55), which is an output part, to rotate the drive arm (55), thereby advancing and retracting the dead bolt (2).

  When manually unlocking and unlocking, the dharma (21), which is a manual force input unit, is rotated to rotate the drive arm (55), thereby advancing and retracting the dead bolt (2). At this time, the other end (55b) of the drive arm (55) only moves relatively in the tear groove (52), and the drive gear (51) does not rotate. That is, when locking and unlocking is performed manually, the transmission of power between the drive gear (51) as an electric force input unit and the drive arm (55) as an output unit is cut off.

  Thus, when performing locking and unlocking manually, the other end portion (55b) needs to move relatively in the tear groove (52). Therefore, in order not to inhibit the relative movement of the other end (55b) in the tear groove (52), after each electric locking / unlocking, the tear groove (52) is driven to return to a fixed position. The gear (51) was rotated.

JP 2002-266530 A

  In the conventional electric lock described above, a large amount of energy is required to rotate the electric power input unit after each electric locking / unlocking operation.

  The present invention was invented in view of the above-described conventional problems, and the object of the present invention is to provide an electric lock that does not require the electric force input unit to be rotated after each electric locking / unlocking operation. is there.

  The electric lock of the present invention includes a dead bolt, a power source that generates power for moving the dead bolt back and forth, a control unit that controls the power source, and the power generated by the power source is transmitted to the dead bolt. And a power transmission mechanism that has an input part and an output part, and a clutch part that switches between transmission and interruption of power between the input part and the output part, and is generated in the power source An upstream power transmission unit that transmits the motive power to the input unit, and a downstream power transmission unit that transmits the power output from the output unit to the dead bolt, and the clutch unit serves as the input unit. An electric force input unit and a manual force input unit, the electric force input unit includes a cylindrical member, and the output unit includes an inner member positioned on the inner side of the cylindrical member, and the inner portion on the inner side of the cylindrical member. Integrated with the material A first pressed portion that is positioned outside the outer peripheral surface of the inner member and is pressed in one direction of the circumferential direction of the outer peripheral surface, and a second pressed portion that is pressed in the other direction, The manual force input unit is provided on the inner side of the cylindrical member and is positioned on the outer side of the outer peripheral surface of the inner member, and the first pressing unit and the second pressed unit that press the first pressed unit in the one direction. A second pressing portion that presses the portion in the other direction, and a spacing variation portion is provided in a part of the circumferential direction of the outer peripheral surface of the inner member, and the spacing variation portion is an intermediate in the circumferential direction of the outer circumferential surface. Located on the outer peripheral surface of the cylindrical member that is not less than a predetermined length and within a predetermined range, and located on the outer side of the wide interval portion in the circumferential direction of the outer peripheral surface. The space between the cylindrical member and the inner peripheral surface is less than the predetermined length, and a narrow space portion that narrows toward the outside, A rolling member having a diameter of the predetermined length is provided between the interval varying portion and the inner peripheral surface of the cylindrical member facing the interval varying portion, and the manual force input portion is A first restricting portion that is provided inside the member and is located outside the outer peripheral surface of the inner member, pushes the rolling member toward the one direction and restricts the movement of the rolling member, and the other direction; A second restricting portion that pushes toward and restricts the movement of the rolling member, and when the cylindrical member of the electric force input portion is rotated by power from the power source, the inner member, the first pressing portion, and The cylindrical member rotates with respect to the second pressing portion, and the rolling member rolls on the inner peripheral surface of the cylindrical member and moves to the outside of the interval varying portion, whereby the narrow interval portion Between the inner peripheral surface and the inner peripheral surface, When the inner member of the output portion rotates and the manual force input portion rotates, the first pressing portion and the second pressing portion move relative to the cylindrical member and the inner member, and the rolling The movement of the moving member to the narrow gap portion is restricted by the first restricting portion or the second restricting portion, and the rotation of the electric force input portion is suppressed, and the first pressing portion or the second pressing portion The part presses the first pressed part or the second pressed part, and the inner member of the output part rotates with the rotation of the manual force input part.

  In the present invention, it is not necessary to rotate the electric force input unit after each electric locking / unlocking, and thus energy saving can be achieved.

FIG. 1 is an exploded perspective view of a main part of the electric lock according to the first embodiment. FIG. 2 is a perspective view of the main part of the door provided with the electric lock of the first embodiment. FIG. 3 is an exploded perspective view of the clutch portion of the first embodiment. FIG. 4 is a front view of the clutch portion of the first embodiment. FIG. 5A is a front view of the clutch unit when the output unit is rotated in the normal rotation direction by electric drive according to the first embodiment, and FIG. 5B is a case when the output unit is rotated in the normal rotation direction by electric drive according to the first embodiment. It is a front view of a clutch part. FIG. 6A is a front view of the clutch unit when the output unit is rotated in the normal rotation direction manually according to the first embodiment, and FIG. 6B is a case where the output unit is rotated in the normal rotation direction manually according to the first embodiment. It is a front view of a clutch part.

  Hereinafter, a first embodiment of an electric lock according to the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the electric lock 1 of the present invention includes a dead bolt 11, a power source 12, a control unit (not shown), and a power transmission mechanism 13. The electric lock 1 is normally provided on the door 8. In the first embodiment, the casing 10 that houses the dead bolt 11, the power source 12, the control unit, and the power transmission mechanism 13 is provided inside the door 8. ing.

  The shape and material of the dead bolt 11 are not limited. Further, the operation of the dead bolt 11 in the electric lock 1 is not particularly limited. That is, the operation is not particularly limited, such as a rod-shaped dead bolt 11 that moves on a straight track along the longitudinal direction and an arc-shaped dead bolt 11 that moves on an arc-shaped track. The dead bolt 11 can protrude from the end surface 81 of the door 8 or be immersed in the end surface 81 of the door 8 (these are collectively referred to as “advance and retreat”).

  The power source 12 generates power for moving the dead bolt 11 forward and backward. In the first embodiment, as illustrated in FIG. 1, the power source 12 includes an electric motor. The electric motor is driven by electric power supplied from the battery 120. The output shaft 121 of the electric motor is configured to be able to rotate in both forward and reverse directions.

  Here, in the first embodiment, the direction in which the output shaft 121 rotates during locking when the dead bolt 11 protrudes from the end surface 81 of the door 8 is defined as the normal rotation direction, and the dead bolt 11 is immersed in the end surface 81 of the door 8. The direction in which the output shaft 121 rotates during unlocking is defined as the reverse direction. Further, similarly in a member accompanied by rotation in the power transmission mechanism 13 to be described later, the direction of rotation at the time of locking is defined as a normal rotation direction 71 (see FIG. 4), and the direction of rotation at the time of unlocking is defined as a reverse rotation direction 72 (FIG. 4). Such definitions of the forward direction and the reverse direction are for convenience, and the direction of rotation can be easily reversed by the power transmission mechanism 13 (for example, by the number of gears, etc.). It is not limited at all by such a definition.

  The output shaft 121 of the electric motor is provided with a worm gear (not shown) that constitutes an upstream power transmission unit 14 described later. The worm gear meshes with a gear 141 (to be described later) that also constitutes the upstream power transmission unit 14 to transmit the rotational force of the output shaft 121 of the electric motor. The output shaft 121 may be provided with a gear other than the worm gear.

  Note that the supply source of electric power supplied to the electric motor is not limited to the battery 120, and for example, a commercial power supply may be used. The power source 12 is not particularly limited to an electric motor.

  The operation of the power source 12 is controlled by the control unit. In the first embodiment, the control unit includes a microcomputer (not shown). The microcomputer includes a CPU (Central Processing Unit) and peripheral devices such as a storage device including, for example, a memory, and executes control by the CPU executing a program stored in the storage device. Note that various types of such control units have been widely used in the past, and these units can be used as appropriate and are not particularly limited.

  The power transmission mechanism 13 transmits power generated by the power source 12 to the dead bolt 11. As shown in FIG. 1, the power transmission mechanism 13 includes an upstream power transmission unit 14, a downstream power transmission unit 15, and a clutch unit 16. In the first embodiment, each member constituting the power transmission mechanism 13 is formed of metal, but may be formed of other materials such as synthetic resin, and is not particularly limited.

  The upstream power transmission unit 14 transmits power generated by the power source 12 to an input unit (particularly, the electric power input unit 2) of the clutch unit 16. In the first embodiment, the upstream power transmission unit 14 is like a worm wheel having a worm gear provided on the output shaft 121 of the electric motor and external teeth (not shown) that mesh with the worm gear, as shown in FIG. Gear 141. The gear 141 rotates by receiving power from the worm gear by the rotation of the output shaft 121 of the electric motor, and transmits the rotational force to the electric force input unit 2 that meshes with the gear 141. The upstream power transmission unit 14 is not limited to the worm gear and the worm wheel, and may transmit power by a combination of other gears or another transmission mechanism. Further, the upstream power transmission unit 14 may not include gears, and a worm gear provided on the output shaft 121 of the electric motor may be directly meshed with the input unit of the clutch unit 16 to transmit power.

  The downstream power transmission unit 15 is interposed to transmit power output from the output unit 4 of the clutch unit 16 to the dead bolt 11. The downstream power transmission unit 15 is not particularly limited, and a power transmission mechanism 13 using a gear, a link mechanism, other known mechanisms, or a combination of these can be used as appropriate. In the first embodiment, as shown in FIGS. 1 and 3, the connecting member 151 that constitutes a part of the downstream power transmission unit 15 is integrally connected to the output unit 4 of the clutch unit 16. The power is transmitted to the dead bolt 11 to advance and retract the dead bolt 11.

  The clutch unit 16 includes an input unit and an output unit 4, and switches between transmission and interruption of power between the input unit and the output unit 4, and includes an upstream power transmission unit 14, a downstream power transmission unit 15, It is provided between. The input unit of the clutch unit 16 includes the electric force input unit 2 and the manual force input unit 3.

  The electric force input unit 2 includes a cylindrical member 20. In the first embodiment, as shown in FIGS. 3 and 4, the cylindrical member 20 is configured by an equal-thickness cylinder in which the cross-sectional shapes of the inner peripheral surface 201 and the outer peripheral surface 202 are circular. The shape is not limited. That is, the cylindrical member 20 may have a portion where the cross-sectional shape does not form a circle in part of the inner peripheral surface 201 and the outer peripheral surface 202. In addition, the cylindrical member 20 may be divided at a part in the circumferential direction so that it does not have to form a cylinder strictly. As shown in FIG. 4, the cylindrical member 20 is provided so as to be rotatable with respect to the casing 10 with a virtual straight line passing through the center of the cross-sectional circle as a rotation center axis 7.

  The output unit 4 includes an inner member 40 located inside the cylindrical member 20. In the first embodiment, as shown in FIGS. 3 and 4, the inner member 40 is configured by a cylindrical member whose outer peripheral surface 401 has a substantially arc-shaped cross section, and passes through the center of the arc-shaped portion. A straight line is provided as a rotation center shaft 7 so as to be rotatable with respect to the casing 10.

  The output unit 4 is provided integrally with the inner member 40 on the inner side of the cylindrical member 20, and is positioned on the outer side of the outer peripheral surface 401 of the inner member 40, and is one direction in the circumferential direction of the outer peripheral surface 401 (forward rotation direction 71). The first pressed part 41 pressed by the second and the second pressed part 42 pressed in the other direction (reverse direction 72) are provided. In the first embodiment, as shown in FIG. 3 and FIG. 4, a convex portion 43 that protrudes radially outward from a portion of the outer circumferential surface 401 of the inner member 40 is provided, and the reverse direction of the convex portion 43 is provided. The first pressed portion 41 that is pressed in the forward rotation direction 71 is configured by the pressed surface that faces 72. Further, the second pressed portion 42 pressed in the reverse rotation direction 72 is constituted by the pressed surface of the convex portion 43 facing the normal rotation direction 71. In 1st embodiment, the convex part 43 is provided in the diagonal position (position shifted 180 degrees) in the circumferential direction of the outer peripheral surface 401 of the inner member 40, respectively, and a total of two are provided. The first pressed portion 41 and the second pressed portion 42 are also provided at diagonal positions in the circumferential direction of the outer peripheral surface 401 of the inner member 40, and a total of two are provided.

  Moreover, in 1st embodiment, as shown in FIG. 3, although the protrusion end surface 431 of the convex part 43 is an arcuate surface along the internal peripheral surface 201 of the cylinder member 20, it is not specifically limited. Further, the width of the convex portion 43 in the circumferential direction is appropriately determined.

  The first pressed portion 41 and the second pressed portion 42 may be provided with three spaces (preferably at a position shifted by 120 °) or four with a space in the circumferential direction of the outer peripheral surface 401 of the inner member 40. It may be provided (positions shifted by 90 ° are preferable), or five or more may be provided (equal intervals are preferable). Moreover, although the to-be-pressed surface which comprises the 1st to-be-pressed part 41 and the 2nd to-be-pressed part 42 is preferably comprised by a part of plane which passes along the rotation center axis | shaft 7 of the inner member 40, it is not specifically limited.

  The manual force input unit 3 is provided on the inner side of the cylindrical member 20 and is positioned on the outer side of the outer peripheral surface 401 of the inner member 40. The first pressing unit 31 and the second pressed unit press the first pressed unit 41 in one direction. The second pressing portion 32 that presses the pressing portion 42 in the other direction is provided. In the first embodiment, the manual force input unit 3 includes a disk-shaped base 30 as shown in FIG. The base portion 30 is shifted from the cylindrical member 20 and the inner member 40 in a direction along the rotation center axis 7. The base 30 is provided so as to be rotatable with respect to the casing 10 with a virtual straight line passing through the center of the circular cross section as the rotation center axis 7. Thereby, the cylindrical member 20 (the electric force input unit 2), the inner member 40 (the output unit 4), and the base 30 (the manual force input unit 3) can be rotated relative to each other around the same rotation center shaft 7. ing.

  A gear (not shown) is provided on the outer peripheral surface of the base 30, and the manual force transmission member 18 shown in FIG. 1 serving as a so-called dharma is engaged with the gear. The manual force transmission member 18 is integrally connected to a thumb turn 17 (see FIG. 2) that is an operation knob. The manual force transmission member 18 is provided with a connecting hole 181 as shown in FIG. 1, and a connecting portion 171 fitted into the connecting hole 181 is provided in the thumb turn 17 as shown in FIG. 2.

  2, the connecting portion 171 of the thumb turn 17 is connected to the connecting hole 181, but a connecting portion of a key cylinder (not shown) may be connected instead of the thumb turn 17. Further, the connecting holes 181 are exposed not only on one side but also on both sides of the door 8, the connecting portion 171 of the thumb turn 17 is connected to the connecting hole 181 exposed on one side, and the key is connected to the connecting hole 181 exposed on the other side. The connecting part of the cylinder may be connected.

  In the first embodiment, as shown in FIGS. 3 and 4, a first projecting portion 33 projecting from a part of the plate surface of the base 30 toward the cylindrical member 20 and the inner member 40 is provided. The first pressing portion 31 is configured by a pressing surface facing the normal rotation direction 71 of 33. Further, a second protrusion 34 that protrudes from a part of the plate surface of the base 30 toward the cylindrical member 20 and the inner member 40 is provided, and the second pressing portion 32 is formed by a pressing surface that faces the reverse direction 72 of the second protrusion 34. Is configured. In 1st embodiment, the 1st protrusion part 33 is each provided in the diagonal position (position shifted 180 degrees) in the circumferential direction, and a total of two are provided. The second protrusions 34 are also provided at diagonal positions in the circumferential direction, and a total of two second protrusions 34 are provided. The first pressing part 31 and the second pressing part 32 are also provided at diagonal positions in the circumferential direction, and two in total.

  Further, as shown in FIG. 4, the side surface 331 and the side surface 341 of the first projecting portion 33 and the second projecting portion 34 far from the rotation center axis 7 are arcuate surfaces along the inner peripheral surface 201 of the cylindrical member 20. However, it is not particularly limited. Further, the side surface 332 and the side surface 342 of the first projecting portion 33 and the second projecting portion 34 close to the rotation center axis 7 are arc-shaped surfaces along the arc-shaped portion of the outer peripheral surface 401 of the inner member 40. However, it is not particularly limited. Moreover, the width | variety in the circumferential direction of the 1st protrusion part 33 and the 2nd protrusion part 34 is determined suitably.

  Three first pressing portions 31 are provided at intervals in the circumferential direction (preferably at a position shifted by 120 °), or four (preferably at a position shifted by 90 °), or five or more. It may be provided (equal intervals are preferred). In addition, three second pressing portions 32 are provided at intervals in the circumferential direction (preferably at a position shifted by 120 °), or four (preferably at a position shifted by 90 °), or five or more. They may be provided (positions shifted by equal angles are preferred). Moreover, although it is preferable that a press surface is comprised by a part of plane which passes along the rotation center axis 7 of the base 30, it is not specifically limited.

  The inner member 40 is provided with the interval varying portion 5 in a part of the outer circumferential surface 401 in the circumferential direction. The interval varying portion 5 has a wide interval portion 51 located at the intermediate portion and a narrow interval portion 52 located on both outer sides in the circumferential direction of the outer peripheral surface 401.

  In the first embodiment, as shown in FIGS. 3 and 4, the interval varying portion 5 is provided between the two convex portions 43 in the circumferential direction of the outer peripheral surface 401 of the inner member 40. In particular, it is preferable that the interval varying portion 5 is provided at the central portion (at a diagonal position) of the two convex portions 43 in the circumferential direction of the outer peripheral surface 401 of the inner member 40. In addition, the interval variation | change part 5 may be provided three (a position shifted 120 degrees is preferable), may be provided four (a position shifted 90 degrees is preferable), or may be provided five or more (equal intervals). preferable). In the first embodiment, the interval varying portion 5 is formed by a plane that forms a chord formed in an arc-shaped portion of the outer peripheral surface 401 of the inner member 40 in the cross section. It is not limited to.

  As shown in FIG. 4, the wide interval portion 51 is located at the intermediate portion in the circumferential direction of the outer peripheral surface 401, and the interval (hereinafter referred to as the gap 50) with the inner peripheral surface 201 of the cylindrical member 20 is a predetermined length or more. And is formed so as to be within a predetermined range. In the first embodiment, the wide gap portion 51 is formed by a flat surface, and the gap 50 differs depending on the position in the circumferential direction, but the gap 50 is not less than a predetermined length and falls within a predetermined range at any position. Note that the gap 50 in the wide interval portion 51 may have a certain length that is not less than a predetermined length regardless of the position in the circumferential direction.

  The narrow gap portion 52 is located outside both of the wide gap portions 51 in the circumferential direction of the outer peripheral surface 401, and the gap 50 is less than a predetermined length and becomes narrower toward the outer side. In the first embodiment, the narrow space portion 52 is formed by a flat surface as described above, and the gap 50 becomes narrower toward the outside. Further, the gap 50 in the narrow interval portion 52 is less than a predetermined length even at the end portion on the wide interval portion 51 side which is the largest portion.

  A rolling member 6 having a diameter of a predetermined length is provided between the interval varying portion 5 and the inner peripheral surface 201 of the cylindrical member 20 facing the interval varying portion 5. In the first embodiment, as shown in FIGS. 3 and 4, the rolling member 6 has a cylindrical shape having an outer peripheral surface having a predetermined diameter, but is a sphere having a predetermined length. May be. In addition, the rolling member 6 may be formed with a recess or the like that does not form a circle in a part of the circular cross section, and the cross section may not form a strict circle. Further, the rolling member 6 may not have a uniform shape in the rotation axis direction.

  Moreover, the manual force input part 3 is provided inside the cylindrical member 20, is located outside the outer peripheral surface 401 of the inner member 40, and pushes the rolling member 6 in one direction (forward rotation direction 71) to roll. A first restricting portion 35 that restricts the movement of the member 6 is provided. Further, the manual force input unit 3 is provided on the inner side of the cylindrical member 20 and is positioned on the outer side of the outer peripheral surface 401 of the inner member 40, and pushes the rolling member 6 in the other direction (reverse rotation direction 72) to roll the rolling member. 6 is provided with a second restricting portion 36 that restricts the movement of the six.

  In the first embodiment, as shown in FIGS. 3 and 4, the first restricting portion 35 is configured by a pressing surface that faces the normal rotation direction 71 of the second projecting portion 34. Further, the second restricting portion 36 is constituted by a pressing surface facing the reverse direction 72 of the first projecting portion 33. In 1st embodiment, the 1st control part 35 and the 2nd control part 36 are each provided in the diagonal position in the circumferential direction, and a total of two are provided. In addition, the 1st control part 35 and the 2nd control part 36 are provided with the space | interval in the circumferential direction, and three are provided (the position which shifted | deviated 120 degrees is preferable), or four were provided (the position which shifted | deviated 90 degrees) 5) or more may be provided (equal intervals are preferable). Moreover, although it is preferable that the press surface which comprises the 1st control part 35 and the 2nd control part 36 is comprised by a part of plane which passes along the rotation center axis | shaft 7 of the base 30, it is not specifically limited.

  In the clutch part 16 mentioned above, as shown in FIG. 4, the inner member 40 which comprises the output part 4 is provided inside the cylindrical member 20 which comprises the electric power input part 2. As shown in FIG. Furthermore, the 1st protrusion part 33 and the 2nd protrusion part 34 which comprise the manual force input part 3 are provided inside the cylinder member 20 and the outer side of the inner member 40. As shown in FIG.

  In the first embodiment, the first projecting portion 33 and the second projecting portion 34 are provided between both convex portions 43 that are formed at two locations in the circumferential direction of the outer peripheral surface 401 of the inner member 40. The first pressing portion 31 of the first protruding portion 33 faces the first pressed portion 41 of the convex portion 43, and the second pressing portion 32 of the second protruding portion 34 faces the second pressed portion 42 of the convex portion 43. To be provided. At this time, the space | interval fluctuation | variation part 5 opposes the internal peripheral surface 201 of the cylinder member 20 through the part between the 1st protrusion part 33 and the 2nd protrusion part 34, and space is formed in the meantime. The rolling member 6 is provided in this space.

  Below, operation | movement of the electric lock 1 mentioned above is demonstrated. First, the case where locking / unlocking is performed by electric drive will be described mainly with reference to FIG.

  The cylinder member 20 of the electric force input unit 2 rotates in the normal rotation direction 71 with respect to the inner member 40, the first pressing unit 31, and the second pressing unit 32 by the power from the power source 12. Thereby, the rolling member 6 rolls and moves on the inner peripheral surface 201 of the cylindrical member 20. Here, before the operation, as shown in FIG. 5B, when the rolling member 6 is positioned in the narrow space portion 52, the inner peripheral surface 201 of the cylindrical member 20 and the rolling member 6 are in strong contact with each other. The rolling member 6 rolls on the inner peripheral surface 201 by the frictional force received from the inner peripheral surface 201 of the rotating cylindrical member 20. In addition, as shown in FIG. 6B, the cylindrical member is also used when the rolling member 6 is positioned in the wide interval portion 51 that is a gap 50 that is equal to or larger than the diameter of the rolling member 6 and is within a predetermined range before the operation. 20 and the rolling member 6 are in contact with each other although they are not as strong as when located in the narrow space portion 52, so that the rolling member 6 rolls. In other words, the predetermined range in which the gap 50 of the wide interval portion 51 is set is set to a range in which the cylindrical member 20 and the rolling member 6 are kept in contact with each other.

  When the rolling member 6 moves in the normal rotation direction 71 toward the outside of the interval varying portion 5 and reaches the narrow interval portion 52 as shown in FIG. 5A, it is between the narrow interval portion 52 and the inner peripheral surface 201. It is fixed by interrupting. That is, when the rolling member 6 cuts into the narrow space portion 52 that is the gap 50 having a diameter smaller than the diameter of the rolling member 6, the rolling member 6 is stretched between the narrow space portion 52 and the inner peripheral surface 201. The relative movement is impossible due to the large frictional force. As a result, the cylindrical member 20, the inner member 40, and the rolling member 6 move together, and the inner member 40 of the output unit 4 rotates with the rotation of the cylindrical member 20, and the forward rotation direction 71 from the output unit 4. The rotational force is output. In the first embodiment, when the cylindrical member 20, the inner member 40, and the rolling member 6 rotate together, the rolling member 6 pushes the second restricting portion 36, so that the manual force input portion 3 is also Although it rotates, the manual force input part 3 does not need to rotate.

  Further, as shown in FIG. 5B, when the cylindrical member 20 rotates in the reverse rotation direction 72, similarly, the rolling member 6 is inserted and fixed to the narrow space 52 on the opposite side to the case shown in FIG. 5A. A rotational force in the reverse rotation direction 72 is output from the output unit 4.

  Next, the case where locking / unlocking is performed manually will be described mainly with reference to FIG.

  As shown in FIG. 6A, when the user rotates the thumb turn 17 (see FIG. 2), the manual force transmission member 18 rotates, and the manual force input unit 3 rotates in the forward rotation direction 71. As a result, the first pressing portion 31 moves in the normal rotation direction 71 with respect to the tubular member 20 and the inner member 40. Here, before the operation, as shown in FIG. 5B, when the rolling member 6 is positioned in the narrow space portion 52, the first regulating portion 35 widens the rolling member 6 by the rotation of the manual force input portion 3. Move to the interval 51. Thereby, integration of the cylindrical member 20, the inner member 40, and the rolling member 6 is cancelled | released, and transmission of the motive power between the cylindrical member 20, the inner member 40, and the manual force input part 3 is interrupted | blocked. Further, before the operation, as shown in FIG. 6B, even when the rolling member 6 is positioned in the wide interval portion 51, the power of the power between the cylindrical member 20, the inner member 40 and the manual force input portion 3 is also reduced. Transmission is cut off.

  As shown in FIG. 6A, the first pressing portion 31 moved in the normal rotation direction 71 presses the first pressed portion 41, and the inner member 40 of the output portion 4 rotates along with the rotation of the manual force input portion 3. When the manual force input unit 3 and the inner member 40 rotate in the normal rotation direction 71, the rolling member 6 moves in the reverse rotation direction 72 relative to the inner member 40. At this time, the first restricting portion 35 restricts the rolling member 6 from moving to the narrow interval portion 52, and the rolling member 6 remains in the wide interval portion 51. Thereby, rotation of the electric force input unit 2 is suppressed, and transmission of power between the electric force input unit 2 and the manual force input unit 3 is interrupted. That is, the first projecting portion 33 (manual force input portion 3) and the inner member 40 (output portion 4) move together, and the rotational force in the forward rotation direction 71 is output from the output portion 4, and The cylinder member 20 (the electric power input unit 2) does not rotate.

  6B, when the cylindrical member 20 rotates in the reverse rotation direction 72, the first projecting portion 33 (manual force input portion 3) and the inner member 40 (output portion 4) are integrated in the same manner. Thus, the rotational force in the reverse rotation direction 72 is output from the output unit 4 and the cylindrical member 20 (the electric force input unit 2) does not rotate.

  In the electric lock 1 described above, an operation of rotating the electric force input unit 2 and returning to a fixed position after each electric locking / unlocking is unnecessary, and the next manual locking / unlocking is performed without any problem. Thereby, energy saving is achieved.

  In addition, the clutch portion 16 has the same rotation center shaft 7 as the electric force input portion 2 (cylinder member 20), the output portion 4 (inner member 40), and the manual force input portion 3 (base portion 30). The diameter around the central axis 7 can be kept small. Thereby, size reduction of the electric lock 1 is achieved.

DESCRIPTION OF SYMBOLS 1 Electric lock 11 Dead bolt 12 Power source 13 Power transmission mechanism 14 Upstream power transmission part 15 Downstream power transmission part 16 Clutch part 2 Electric power input part 20 Cylindrical member 201 Inner peripheral surface 3 Manual force input part 31 1st press part 32 2nd press part 35 1st control part 36 2nd control part 4 Output part 40 Inner member 401 Outer peripheral surface 41 1st pressed part 42 2nd pressed part 5 Space | interval fluctuation | variation part 51 Wide space | interval part 52 Narrow space | interval part 6 Roll Moving member

Claims (1)

Deadbolt,
A power source for generating power for advancing and retracting the deadbolt;
A control unit for controlling the power source;
A power transmission mechanism for transmitting power generated by the power source to the dead bolt,
The power transmission mechanism includes an input unit and an output unit, a clutch unit that switches transmission and interruption of power between the input unit and the output unit, and transmits power generated by the power source to the input unit. An upstream power transmission unit, and a downstream power transmission unit that transmits power output from the output unit to the dead bolt,
The clutch unit includes an electric force input unit and a manual force input unit as the input unit,
The electric force input unit includes a cylindrical member,
The output portion is an inner member positioned on the inner side of the cylindrical member, and is provided integrally with the inner member on the inner side of the cylindrical member and is positioned on the outer side of the outer peripheral surface of the inner member. A first pressed part pressed in one direction and a second pressed part pressed in the other direction,
The manual force input unit is provided on the inner side of the cylindrical member and is positioned on the outer side of the outer peripheral surface of the inner member, and the first pressing unit and the second pressed unit that press the first pressed unit in the one direction. A second pressing portion that presses the pressing portion in the other direction;
An interval variation portion is provided in a part of the outer circumferential surface of the inner member in the circumferential direction, and the interval variation portion is located at an intermediate portion of the outer circumferential surface in the circumferential direction and is spaced from the inner circumferential surface of the cylindrical member Is located outside of both the wide interval portion that is longer than a predetermined length and within a predetermined range and the wide interval portion in the circumferential direction of the outer peripheral surface, and the interval between the inner peripheral surface of the cylindrical member is the predetermined interval A narrow interval portion that is less than the length and narrows toward the outside,
A rolling member having a diameter of the predetermined length is provided between the interval varying portion and the inner peripheral surface of the cylindrical member facing the interval varying portion,
The manual force input unit is provided inside the cylindrical member and is located outside the outer peripheral surface of the inner member, and pushes the rolling member in the one direction to restrict movement of the rolling member. A first restricting portion and a second restricting portion that restricts movement of the rolling member by pushing in the other direction;
When the cylindrical member of the electric force input portion is rotated by power from the power source, the cylindrical member rotates with respect to the inner member, the first pressing portion, and the second pressing portion, and the rolling member However, by rolling on the inner peripheral surface of the cylindrical member and moving to the outside of the interval changing portion, the cylindrical member is inserted and fixed between the narrow interval portion and the inner peripheral surface. The inner member of the output unit rotates with the rotation,
When the manual force input portion rotates, the first pressing portion and the second pressing portion move relative to the cylindrical member and the inner member, and the rolling member moves to the narrow interval portion. The rotation of the electric force input unit is restricted by the first regulating unit or the second regulating unit, and the first pressing unit or the second pressing unit is the first pressed unit or the second pressed unit. An electric lock characterized in that the inner part of the output part is rotated with the rotation of the manual force input part by pressing the pressing part.

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