Electric locking device for opening and closing body

Abstract

The present application provides an electric locking device for a closure body that reduces the pressing load of the closure body when closing an opening. The electric locking device (10) has a locking portion, a lever, a force applying unit, and an actuator (20) having a housing (21), a motor (22), a wheel portion (60), and a rotating body (80). A pressing portion (70) is provided on the wheel portion (60) and engages with a receiving portion (90) of the rotating body (80) when rotated in a predetermined direction to move the lever. When a force in a direction to overcome the applied force of the force applying unit is applied to the rotating body (80) via the lever in a state where the lever is forced in a direction to engage with the locking portion by the force applying unit, the rotating body (80) moves in a direction away from the pressing portion (70) of the receiving portion (90) and rotates independently of the wheel portion (60).

Description

Technical Field

[0001] The present invention relates to an electrically operated locking device for locking an opening / closing body that is assembled in an openable / closable manner to an opening of a fixed body in a closed state. Background Technology

[0002] For example, a cover or other opening / closing element is fitted into the opening of a fixed body such as a glove box in an automobile. Furthermore, a locking device is provided between the opening and the opening / closing element, which locks the opening / closing element when closed and unlocks it when opened / closing it. Additionally, a locking device that uses an electric actuator for locking and unlocking is also known.

[0003] For example, Patent Document 1 describes an electric locking device for an opening and closing body, comprising: a pair of locking portions provided at the opening of a fixed body; a pair of rods engaged / disengaged from the locking portions; a force-applying unit that applies force to the rods in the direction of engagement with the locking portions; and an actuator that causes the pair of rods to slide and disengage from the pair of locking portions. The actuator comprises: a housing having an opening; a motor disposed within the housing; a worm gear that rotates via the motor; and a worm wheel rotatably supported on the housing and rotating in conjunction with the worm gear. The worm wheel has a rotating portion protruding from the opening of the housing to the outside of the housing, and the base ends of the pair of rods are respectively assembled to the rotating portion in a linkage manner.

[0004] According to the aforementioned electric locking device, when opening the opening / closing body from the opening of the fixed body, firstly, the worm gear is rotated by a motor. This causes the worm wheel and worm gear to rotate in conjunction, disengaging a pair of rods from the locking part. Therefore, the locking of the opening / closing body can be released, allowing it to be opened from the opening.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: WO2016 / 185973A1 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In the electrically operated locking device of Patent Document 1, when the opening / closing body is open from the opening portion, a pair of rods protrude in the direction of engaging with the locking part via the force application unit. When the opening / closing body is pressed in from this state, the pair of rods are pressed against the periphery of the opening portion and pulled in the direction of disengagement from the locking part, but at this time, the worm gear also rotates. However, since the worm gear meshes with the worm, the worm gear experiences resistance from the worm when rotating, therefore, the pressing load when pressing the opening / closing body is high.

[0010] Therefore, the object of the present invention is to provide an electrically operated locking device for an opening and closing body that can reduce the pressing load of the opening and closing body when the opening of the fixed body is closed by the opening and closing body.

[0011] Solution for solving the problem

[0012] To achieve the above objectives, the present invention provides an electrically operated locking device for an opening / closing body, which is mounted on the opening of a fixed body in an openable / closable manner. The electrically operated locking device for the opening / closing body is characterized by comprising: a locking part disposed on one of the opening / closing body and the opening of the fixed body; a rod slidably disposed on the other of the opening / closing body and the fixed body, engaging / disengaging with the locking part; a force-applying unit that directly or indirectly applies force to the rod in the direction of engaging with the locking part; and an actuator disposed on the other of the opening / closing body and the fixed body, causing the rod to slide and disengage from the locking part. The actuator comprises: a housing mounted on the other of the opening / closing body and the fixed body; a motor disposed within the housing; and a wheel, which... The motor rotates in conjunction with the rotating body, which is rotatably supported within the housing and engages with the rod. Rotation causes the rod to engage / disengage with the locking part. A pressing part is provided on the wheel portion. When the wheel portion rotates in a predetermined direction, the pressing part engages with a receiving part provided on the rotating body or the rod, overcoming the applied force of the force-applying unit and causing the rod to move in the direction of disengagement from the locking part. The rotating body is configured such that, when the force-applying unit applies force to the rod in the direction of engagement with the locking part, and a force acting on the rotating body via the rod in the direction of rotation overcoming the applied force of the force-applying unit acts on the rotating body, the rotating body can rotate independently of the wheel portion in the direction away from the pressing part from the receiving part.

[0013] Invention Effects

[0014] According to the present invention, when the lever is engaged with the locking part, the motor is operated to rotate the wheel in a predetermined direction. This causes the pressing part of the wheel to abut against the receiving part of the rotating body, and the rotating body rotates against the force applied by the force-applying unit. The lever disengages from the locking part, thus the locking of the opening / closing body can be released electrically. Next, when the opening / closing body is rotated in the closing direction while it is open, the lever contacts the edge of the locking part, and a force is applied to pull the lever in against the force applied by the force-applying unit. However, at this time, the rotating body can rotate independently of the wheel. Therefore, less pressure is required to pull the lever in, allowing it to pass over the edge of the locking part and engage with the locking part again. This reduces the pressure load when closing the opening / closing body. Attached Figure Description

[0015] Figure 1A first embodiment of the electrically operated locking device for the opening and closing body of the present invention is shown, and an exploded perspective view of the actuator constituting the electrically operated locking device is also shown.

[0016] Figure 2 This is a perspective view of the actuator with the second housing removed.

[0017] Figure 3 This is a 3D view of the actuator.

[0018] Figure 4 This is a top view of the first housing that forms the housing in the actuator.

[0019] Figure 5 This is a three-dimensional assembly view of the wheel and rotating body that make up the actuator.

[0020] Figure 6 This is a rear view of the wheel section that makes up the actuator.

[0021] Figure 7 This is a rear view of the rotating body that constitutes the actuator.

[0022] Figure 8 This is a rear view of the wheel and rotating body that make up the actuator.

[0023] Figure 9 This is a top view of the actuator with the second housing and other components removed.

[0024] Figure 10 yes Figure 3 A sectional view along line of sight from point A to point A.

[0025] Figure 11 yes Figure 3 A cross-sectional view along line of sight from B-B.

[0026] Figure 12 yes Figure 3 A cross-sectional view of the line of sight from D to D.

[0027] Figure 13 From Figure 10 The diagram shows a cross-sectional view of the rotating body rotating in a specified direction from the state shown.

[0028] Figure 14 From Figure 10 The diagram shows a cross-sectional view illustrating the state in which the rotating body rotates independently of the wheel in a specified direction, starting from the state shown.

[0029] Figure 15 This is an illustration of how the opening and closing body is locked in the closed state by the electric locking device.

[0030] Figure 16 From Figure 15The diagram shown illustrates the situation where the lock is released from the closed state of the opening / closing body.

[0031] Figure 17A This is a diagram illustrating the main part of the situation where the opening and closing body is locked in the closed state by the electric locking device.

[0032] Figure 17B From Figure 17A The diagram shown illustrates the main part of the situation where the lock is released from the closed state of the opening and closing body, starting from the state shown.

[0033] Figure 17C From Figure 17B The diagram illustrates the main parts of the opening and closing mechanism as it further opens from the state shown.

[0034] Figure 18A From Figure 17C The diagram illustrates the main parts of the opening and closing mechanism as shown, from the state indicated.

[0035] Figure 18B From Figure 18A The diagram illustrates the main part of the process of further pressing the open and closed body into the state shown.

[0036] Figure 18C From Figure 18B The diagram illustrates the main part of the situation where, starting from the state shown, the lever is further pressed into the opening and closing body and reaches the locking part.

[0037] Figure 19 This is a top view showing a second embodiment of the electrically operated locking device for the opening and closing body of the present invention.

[0038] Figure 20 yes Figure 19 A cross-sectional view at the line of sight from E to E.

[0039] Figure 21 This is a cross-sectional view at a specified thickness position in the electric locking device.

[0040] Figure 22 This is a top view showing a third embodiment of the electrically operated locking device for the opening and closing body of the present invention.

[0041] Figure 23 This is an enlarged top view of the main components of the actuator that makes up the electric locking device.

[0042] Figure 24 This is a top view of the actuator with the second housing and other components removed.

[0043] Figure 25 yes Figure 23 A cross-sectional view along the line of sight from G to G.

[0044] Figure 26A This is a diagram illustrating the main part of the electric locking device when the opening and closing body is locked in the closed state.

[0045] Figure 26B From Figure 26A The diagram shown illustrates the main part of the situation where the lock is released from the closed state of the opening and closing body, starting from the state shown.

[0046] Figure 26C This is a diagram illustrating the main part of the electric locking device, showing the situation where the opening / closing body is pressed into the opening / closing body from the state where the opening / closing body is opened from the opening of the fixed body.

[0047] Figure 27 A fourth embodiment of the electric locking device for the opening and closing body of the present invention is shown, and an exploded perspective view of the actuator constituting the electric locking device is also shown.

[0048] Figure 28 This is a three-dimensional view of the first housing that constitutes the housing in the actuator.

[0049] Figure 29 This is a top view of the first housing that forms the housing in the actuator.

[0050] Figure 30 This is a three-dimensional assembly view of the wheel and rotating body that make up the actuator.

[0051] Figure 31 This is a partial cross-sectional diagram illustrating the relationship between the gears, wheels, etc., when viewed radially from the wheel section in this actuator.

[0052] Figure 32 It is in the actuator Figure 29 A cross-sectional view of the first shell cut along the line of sight from H-H.

[0053] Figure 33 It is in the actuator Figure 29 A cross-sectional view of the first housing cut along the line of sight from point I-I.

[0054] Figure 34 This is a cross-sectional view of the actuator.

[0055] Figure 35 From Figure 34 The diagram shows a cross-sectional view of the wheel and rotating body rotating in a specified direction from the state shown.

[0056] Figure 36 A fifth embodiment of the electric locking device for the opening and closing body of the present invention is shown, and a perspective view of the wheel portion constituting its actuator is also shown.

[0057] Figure 37This is a longitudinal sectional view of the actuator that constitutes the electric locking device. Detailed Implementation

[0058] (First embodiment of the electric locking device for the opening and closing body)

[0059] Hereinafter, with reference to the accompanying drawings, a first embodiment of the electric locking device for the opening and closing body of the present invention will be described.

[0060] like Figure 15 and Figure 16 As shown, the electric locking device 10 for the opening and closing body in this embodiment (hereinafter, it is also referred to as "electric locking device 10") is, for example, a device that locks the opening and closing body 5, such as the glove box, which is mounted in an openable and closable manner to the opening 2 of the fixed body 1 such as the instrument panel of a vehicle, to the opening 2 of the fixed body 1 in a closed state, and electrically opens the locked opening and closing body 5 by means of the actuator 20.

[0061] The electrically operated locking device 10 of this embodiment includes: a pair of locking parts 3, 3 (see reference) Figure 15 A pair of rods 11 and 12 are slidably disposed on the opening 2 of the fixed body 1; the opening 2 is located at the opening 2 of the fixed body 1. Figures 17A to 18C On the opening / closing body 5 side, it engages / disengages with a pair of locking parts 3, 3; a torsion spring 15 continuously and indirectly applies force to a pair of rods 11, 12 in the direction of engaging with a pair of locking parts 3, 3; and an actuator 20, disposed on the opening / closing body 5 side, causes a pair of rods 11, 12 to slide and disengage from a pair of locking parts 3, 3. The torsion spring 15 constitutes the "force application unit" in this invention.

[0062] In addition, the actuator 20 has: a housing 21 disposed on the side of the opening / closing body 5; a motor 22 disposed inside the housing 21; a wheel 60 that rotates in conjunction with the motor 22; and a rotating body 80 that is rotatable inside the housing 21 and supported inside the wheel 60, and is pivotally supported by a pair of rods 11, 12, so that the pair of rods 11, 12 can be engaged / disengaged from a pair of locking parts 3, 3 by rotation.

[0063] like Figure 1 As shown, in this embodiment, the actuator 20 has a gear 23 on the drive shaft 22a of the motor 22 (the gear 23 is fixed to the drive shaft 22a in a rotation-limited state). In this embodiment, the gear 23 is a so-called worm gear that extends to a predetermined length and has helical teeth formed on its outer circumference. The wheel portion 60 meshes with this gear 23, and when the gear 23 rotates using the motor 22, the wheel portion 60 rotates in conjunction with it. Furthermore, an elastic member 26 made of an elastic material such as rubber is assembled into the actuator 20.

[0064] It should be noted that, as an electric locking device, as described above, it can be applied, for example, to a structure in which a box-shaped glove box is rotatably mounted at the opening of an instrument panel (in which case, the instrument panel constitutes a "fixed body" and the glove box constitutes an "opening and closing body"), or to a structure in which a cover is mounted at the opening of an instrument panel in an openable and closable manner (in which case, the instrument panel constitutes a "fixed body" and the cover constitutes an "opening and closing body"). It can be widely used in various opening and closing bodies for opening / closing the opening of a fixed body.

[0065] In addition, such as Figure 15 , Figure 16 As shown, in this embodiment, a pair of locking parts 3, 3 in the shape of holes are provided on both sides of the opening 2 of the fixing body 1 in the width direction. It should be noted that the locking parts may not be hole-shaped, but may be concave, protruding, frame-shaped, etc. In addition, the locking parts may be provided on the opening and closing body instead of the fixing body, without particular limitation.

[0066] Furthermore, a switch (not shown, such as a touch switch, button switch, lever switch, etc.) for actuating the motor 22 is provided at a predetermined position on the surface side of the opening / closing body 5.

[0067] Furthermore, the torsion spring 15 comprises a winding portion 15a formed by winding wire, a first wrist portion 15b protruding inward from one circumferential end of the winding portion 15a, and a second wrist portion 15c protruding inward from the other circumferential end of the winding portion 15a. The torsion spring 15 applies force to rotate the rotating body 80 in a predetermined direction (details described later). In this embodiment, Figure 9 , Figure 10 as well as Figure 15 The direction indicated by arrow F1 is the direction of the rotational force exerted by the torsion spring 15, which acts as the force-applying unit, on the rotating body 80.

[0068] like Figure 15 and Figure 16 As shown, each rod 11 and 12 is rod-shaped, and each has a locking portion 13 at its axial top end. Each locking portion 13 has a tapered surface, and these locking portions 13 engage / disengage with the pair of locking portions 3. Furthermore, a tapered surface 13a is formed on the side of the opening / closing body 5 of the locking portion 13 relative to the pressing direction of the opening 2 of the fixing body 1. It should be noted that the locking portion 13 may also be located midway along the axial direction of the rods 11 and 12 instead of at their top ends.

[0069] Furthermore, regarding the pair of rods 11 and 12, their base ends 14 and 14 are pivotally supported on the rotating body 80. Through the rotating body 80, which is rotated via the torsion spring 15, the engaging portions 13 and 13 on the top side are forced in a direction to engage with the pair of locking portions 3 and 3 (see reference). Figure 15(The arrow). That is, in this embodiment, the pair of rods 11 and 12 are always indirectly slidably forceped in the direction of engaging with the pair of locking parts 3 through the torsion spring 15, which serves as the force-applying unit. It should be noted that the rods can also be directly slidably forceped in the direction of engaging with the locking part 3 through the force-applying unit (this will be explained in other embodiments).

[0070] Furthermore, in this embodiment, rods 11 and 12 are slidably disposed on the opening / closing body 5, and the locking part 3 is formed on the opening 2 side of the fixed body 1. However, conversely, the rods can be slidably disposed on the fixed body side, and the locking part can be provided on the opening / closing body side. It should be noted that rods 11 and 12 in this embodiment are a pair of rods, but they can also be a single rod.

[0071] Next, the housing 21 constituting the actuator 20 will be described in detail.

[0072] like Figure 1 As shown, the housing 21 of this embodiment is composed of a first housing 30 and a second housing 50 assembled with the first housing 30.

[0073] like Figure 1 and Figure 4 As shown, the first housing 30 has a bottom wall 31 and a peripheral wall 32 erected from its periphery, forming a bottomed frame shape with an opening on the opposite side (upper side) of the second housing 50.

[0074] Furthermore, the first housing 30 includes: a motor mounting section 33 for mounting a motor 22; and a gear mounting section 34 for mounting a drive shaft 22a of the motor 22 in the motor mounting section 33 (see reference). Figure 1 The first housing 30 has a side-mounted grounding configuration for arranging the gear 23, wheel 60, and rotating body 80. Furthermore, a connector insertion portion 35 (not shown) is provided on one side of the motor mounting portion 33 of the first housing 30 for inserting a power connector that supplies power to the motor 22.

[0075] Furthermore, the peripheral wall 32 on the side of the gear mounting portion 34, opposite to the mounting portion of the gear 23, is curved. A groove-shaped elastic member mounting recess 36 is formed in this curved portion, and a portion of the elastic member 26 is mounted in this curved portion (see reference). Figure 2 In addition, a plurality of engaging protrusions 32a for assembly with the second housing 50 are provided at designated locations on the outer periphery of the peripheral wall 32.

[0076] Furthermore, a generally cylindrical support shaft 38, supporting the rotating body 80 in a rotatable manner, is provided protruding from the inner surface of the bottom wall 31 on the gear configuration section 34 side. This support shaft 38 protrudes from the radial center of the bottom wall 31 via a raised portion 37 that rises from the inner surface of the bottom wall 31. It should be noted that the support shaft 38 extends perpendicularly to the surface direction of the inner surface of the bottom wall 31, and its axis is indicated by the reference numeral "C1" (see attached drawing). Figure 9 Furthermore, a protrusion 38a is provided on the outer periphery of the top end of the support shaft 38 in the protruding direction. It should be noted that the support shaft 38 constitutes the "rotational support portion for supporting the rotating body as rotatable" in the present invention.

[0077] Furthermore, a spring retaining wall 39 is provided concentrically on the inner surface of the bottom wall 31 on the gear configuration section 34 side and on the outer periphery of the support shaft 38. This spring retaining wall 39 has a notched spring retaining groove 39a formed at one point in its circumference, and the spring retaining wall 39 is approximately C-shaped. It should be noted that the first wrist portion 15b of the torsion spring 15 is engaged in the spring retaining groove 39a.

[0078] Furthermore, a generally cylindrical cylindrical wall 41 is erected on the inner surface of the bottom wall 31 on the gear mounting section 34 side and on the outer periphery of the spring retaining wall 39. This cylindrical wall 41 is concentrically arranged with the support shaft 38 and the spring retaining wall 39. And, as... Figure 11 As shown, the wheel portion 60 is rotatably supported by the top end portion 41a in the protruding direction of the cylindrical wall 41.

[0079] Furthermore, a winding portion 15a of a torsion spring 15 is disposed between the spring-locking wall 39 and the cylindrical wall 41. Moreover, as... Figure 4 As shown, a protrusion 39b protrudes from the outer periphery of the spring retaining wall 39, and a rib 39c is provided between the spring retaining wall 39 and the cylindrical wall 41. These protrusions 39b and ribs 39c can suppress abnormal noise when the winding portion 15a of the torsion spring 15 deforms.

[0080] On the other hand, the second housing 50 assembled with the first housing 30 has a top wall 51 and a peripheral wall 52 that hangs down from its periphery, forming a frame shape that opens to the opposite side (lower side) of the first housing 30.

[0081] like Figure 1 As shown, in the second housing 50, a motor configuration part 53, a gear configuration part 54, and a connector insertion part 55 are respectively provided at positions corresponding to the motor configuration part 33, the gear configuration part 34, and the connector insertion part 35 of the first housing 30.

[0082] Furthermore, a circular opening 51a is formed on the top wall 51 on the gear configuration section 54 side for the base 81 of the rotating body 80 to protrude (described later).

[0083] Furthermore, a plurality of engaging tabs 52a are provided hanging downwards on the outer periphery of the peripheral wall 52 at positions corresponding to the plurality of engaging protrusions 32a of the first housing 30. By engaging these plurality of engaging tabs 52a with their corresponding engaging protrusions 32a, such as... Figure 3 As shown, the first housing 30 and the second housing 50 are assembled to form housing 21. Inside housing 21, motor 22 is provided by motor configuration parts 33 and 53, gear 23, wheel 60 and rotating body 80 are provided by gear configuration parts 34 and 54, and connector insertion parts are provided by connector insertion parts 35 and 55.

[0084] The motor 22, which is disposed in the motor mounting space of the housing 21, is electrically connected to a power connector (not shown) via a pair of busbars 25, 25. The drive shaft 22a of the motor 22 is rotated by operating a switch (not shown) disposed on the surface side of the opening and closing body 5.

[0085] It should be noted that a cylindrical connector housing 24 (see reference) is assembled at the connector insertion part, which is separate from the housing 21. Figure 1 A pair of busbars 25, 25 are disposed within the connector housing 24, and a power connector (not shown) for supplying power to the motor 22 is inserted therein.

[0086] Furthermore, a notch 57a is formed on the side of the peripheral wall 52 on the gear mounting section 54 opposite to the mounting section of the gear 23, and at a position that matches the elastic member mounting recess 36 of the first housing 30 (see reference). Figure 1 A wide tab 57 protrudes from the inner surface of the notch 57a, and an elastic member 26 is attached to the tab 57.

[0087] The shell described above consists of a pair of shells 30 and 50, but it can also be a single component. Furthermore, the shape / construction of each part of each shell (bottom wall, peripheral wall, support shaft, spring locking wall, cylindrical wall, engaging protrusion, engaging plate, protrusion, etc.) is not limited to the above-described scheme.

[0088] Next, the wheel section 60 will be described in detail.

[0089] like Figure 1 , Figure 5 as well as Figure 6 As shown, the wheel portion 60 is separate from the rotating body 80 and is rotatably supported on the housing 21. Furthermore, the wheel portion 60 is provided with a pressing portion 70, which engages with the receiving portion 90 provided on the rotating body 80 when the wheel portion 60 rotates in a predetermined direction, overcoming the applied force of the force-applying unit (torsion spring 15) and causing the rods 11 and 12 to move in the direction of disengagement from the locking portion 3.

[0090] More specifically, the wheel portion 60 of this embodiment has: a base 61, which is generally circular; and a peripheral wall 62, which extends from the periphery of the base 61 toward the rotation axis of the wheel portion 60 and is generally cylindrical. In this embodiment, the peripheral wall 62 extends perpendicularly to the base 61 from the periphery of the base 61 toward the bottom wall 31 of the first housing 30. Furthermore, as... Figure 11 As shown, the winding portion 15a of the torsion spring 15 is disposed on the inner side of the peripheral wall 62 of the wheel portion 60. It should be noted that the rotation axis of the wheel portion 60 refers to the axis extending from the rotation center C2 of the wheel portion 60 (see reference). Figure 9 The direction of rotation of the wheel portion 60 refers to the direction along which it extends through the shaft.

[0091] In addition, a pair of protrusions 63 and 64 are provided protruding from a designated location on the outer periphery of the peripheral wall 62. For example... Figure 10 As shown, when the motor 22 is not operating and the gear 23 is not rotating, one of the protrusions 63 abuts against one end 26a of the elastic member 26, thereby restricting the rotational position of the wheel 60. Furthermore, as... Figure 13 As shown, when the motor 22 is activated and the gear 23 rotates, the wheel 60 rotates to its maximum extent in the direction opposite to the direction of the rotational force applied to the rotating body 80, while the other protrusion 64 abuts against the other end 26b of the elastic member 26, thereby restricting the rotational position of the wheel 60.

[0092] Furthermore, helical teeth 65 are formed on the outer periphery of the peripheral wall 62 and between the pair of protrusions 63 and 64, meshing with the gear 23. As a result, the gear 23 is rotated by driving the drive shaft 22a of the motor 22, and the wheel portion 60 rotates in a predetermined direction in conjunction with it. It should be noted that the configuration for rotating the wheel portion may not be a combination of worm and helical teeth. For example, a spur gear may be fixed to the drive shaft of the motor and spur teeth that mesh with the spur gear may be formed on the outer periphery of the wheel portion, or any configuration that allows the wheel portion to be linked with the motor may suffice.

[0093] Furthermore, at the radial center of the base 61, a roughly semi-circular shaft hole 66 and a roughly semi-circular notch 67 with a diameter larger than the shaft hole 66 are connected in such a state that the diameter portion of the shaft hole 66 and the diameter portion of the notch 67 are opposite each other. Figure 5 and Figure 8 As shown, a portion of the cylindrical portion 83 of the rotating body 80 (described later) is rotatably inserted into the shaft hole 66. Furthermore, the remaining portion of the cylindrical portion 83 of the rotating body 80 (described later) is rotatably inserted into the notch 67, and the rotating portion 88 is rotatably inserted into the notch 67 (see reference). Figure 8 ).

[0094] Furthermore, the arc-shaped outer wall portion 68 extends from the inner periphery of the shaft hole 66 toward the bottom wall 31 of the first housing 30. For example... Figure 5 , Figure 8 As shown, the outer wall portion 68 is disposed radially outside the cylindrical portion 83 of the rotating body 80, which will be described later.

[0095] In addition, such as Figure 1 As shown, an enlarged diameter portion 62a, which is larger than other portions, is provided at the top end of the peripheral wall 62 in the extending direction (the end on the bottom wall 31 side of the first housing 30). Figure 5 As shown, a platform-shaped recess 62b is formed on the inner surface side of the expanded diameter portion 62a of the peripheral wall 62. As for the recess 62b, its inner periphery is formed into a platform-shaped recess with a circular shape, and its inner diameter is a size that matches the outer diameter of the top end portion 41a of the cylindrical wall 41 provided on the side of the housing 21.

[0096] And, as Figure 11 As shown, the top end 41a of the protruding direction of the cylindrical wall 41 enters the aforementioned recess 62b. The outer periphery of the top end 41a is positioned opposite the inner periphery of the recess 62b, and the upper end of the top end 41a abuts against the bottom of the recess 62b. Thus, the wheel 60 is rotatably supported on the cylindrical wall 41. At this time, the rotation center C2 of the wheel 60 is the same as the axis C1 of the support shaft 38 and the rotation center C3 of the rotating body 80 (see reference). Figure 9 and Figure 11 It should be noted that, for example... Figure 11 As shown, the inner surface of the peripheral wall 62 is flush with the inner surface of the cylindrical wall 41.

[0097] It should be noted that, as Figure 11 As shown, the configuration is such that there is a certain degree of gap between the outer periphery of the cylindrical portion 83 of the rotating body 80 and the shaft hole 66 and the inner periphery of the outer wall portion 68 of the wheel portion 60. In contrast, there is almost no gap between the outer periphery of the top end portion 41a of the cylindrical wall 41 and the inner periphery of the recess 62b (that is, the gap between the outer periphery of the top end portion 41a of the cylindrical wall 41 and the inner periphery of the recess 62b is smaller than the gap between the outer periphery of the cylindrical portion 83 and the shaft hole 66 and the inner periphery of the outer wall portion 68). In other words, the wheel portion 60 is not rotatably supported by the cylindrical portion 83 of the rotating body 80, but is rotatably supported only by the cylindrical wall 41 on the housing 21 side.

[0098] like Figure 6 As shown, the approximately semi-circular notch 67 has an arc-shaped inner peripheral edge 69. A pressing portion 70 extending toward the rotation center C2 of the wheel portion 60 is provided at one circumferential end of this inner peripheral edge 69. On the other hand, a spring abutment portion 71 extending toward the rotation center C2 of the wheel portion 60 is provided at the other circumferential end of the inner peripheral edge 69. It should be noted that the pressing portion 70 and the spring abutment portion 71 are arranged on the same straight line passing through the rotation center C2 of the wheel portion 60.

[0099] The wheel described above is not limited to the shape and structure described above, as long as it has at least a pressing part. Furthermore, the operation of the wheel 60 will be described later along with the operation of the rotating body 80.

[0100] Next, the rotating body 80 will be described in detail.

[0101] like Figure 1 , Figure 5 , Figure 7 as well as Figure 8 As shown, the rotating body 80 is separate from the wheel portion 60 and is rotatably supported on the housing 21. It is rotatably positioned inside the wheel portion 60, allowing for both rotational movements that are linked to and independent of the wheel portion 60 (also referred to as free rotation). Furthermore, the rotating body 80 has a receiving portion 90 that abuts against and receives the pressing force from the pressing portion 70 of the wheel portion 60.

[0102] More specifically, the rotating body 80 in this embodiment has: a base 81, which is generally circular; a circular shaft hole 81a formed in the radial center of the base 81; a generally cylindrical peripheral wall 82, which hangs down from the periphery of the base 81 toward the bottom wall 31 of the first housing 30; and a cylindrical portion 83, which is generally cylindrical, and hangs down from the inner side of the base 81 and the inner periphery of the shaft hole 81a.

[0103] like Figure 7 As shown, a plurality of ribs 84 are provided on the inner side of the base 81 and between the peripheral wall 82 and the cylindrical portion 83, extending radially from the rotation center of the rotating body 80. Here, the four ribs 84 are arranged at equal intervals in the circumferential direction.

[0104] In addition, such as Figure 5 and Figure 7 As shown, an inner protrusion 85 protrudes from the inner circumferential surface of the cylindrical portion 83. A portion of the inner protrusion 85 is cut open in the circumferential direction to form an axial notch 85a extending along the axial direction of the cylindrical portion 83. The inner protrusion 85 is approximately C-shaped. A protrusion 38a provided on the support shaft 38 can be inserted into the axial notch 85a.

[0105] In addition, such as Figure 11 As shown, the upper end face of the inner protrusion 85 forms a platform-shaped locking surface 85b. When an external force is applied to the rotating body 80 in a direction away from the bottom wall 31 of the first housing 21, the protrusion 38a of the support shaft 38 is locked onto the locking surface 85b, thereby preventing the rotating body 80 from detaching.

[0106] Furthermore, by inserting the support shaft 38 provided on the first housing 30 into the inner protrusion 85 on the inner circumference of the cylindrical portion 83, the rotating body 80 is rotatably supported on the first housing 30 via the support shaft 38. Figure 9 and Figure 11 As shown, at this time, the rotation center C3 of the rotating body 80 is the same as the axis C1 of the support shaft 38 and the rotation center C2 of the wheel part 60.

[0107] It should be noted that in this embodiment, a support shaft 38 is provided on the first housing 30 side, and a cylindrical portion 83 and a shaft hole 81a for inserting the support shaft 38 are provided on the rotating body 80 side. However, for example, a support shaft may be provided on the second housing 50 side to support the rotating body 80 so that it can be rotatable, or a support shaft may be provided on the rotating body 80 side, and a support hole for inserting the support shaft may be provided on the first housing 30 or the second housing 50 side to support the rotating body 80 so that it can be rotatable.

[0108] Furthermore, the inner diameter of the inner protrusion 85 is smaller than the outer diameter of the top portion of the support shaft 38, which includes the protrusion 38a, and thus becomes an inner diameter that matches the outer diameter of the support shaft 38. Therefore, with the support shaft 38 inserted into the inner protrusion 85 of the inner circumference of the cylindrical portion 83, the rotating body 80 can be rotatably supported on the support shaft 38 with reduced wobbling.

[0109] Furthermore, by aligning the axial notch 85a of the rotating body 80 with the protrusion 38a of the support shaft 38, inserting the support shaft 38 into the lower end opening of the cylindrical portion 83, and then inserting the protrusion 38a out through the upper opening of the axial notch 85a, the rotating body 80 is rotated in the opposite direction to the rotational force direction of the torsion spring 15. As a result, the protrusion 38a of the support shaft 38 is offset in the circumferential direction relative to the axial notch 85a and is positioned opposite to the locking surface 85b. Therefore, the rotating body 80 can be held in place by the support shaft 38 to prevent it from slipping out.

[0110] In addition, such as Figure 9 As shown, a protrusion 86 is provided at a circumferentially defined location on the inner circumferential surface of the cylindrical portion 83 and protruding from the locking surface 85b. This protrusion 86 approaches / opposes the protrusion 38a of the support shaft 38. When the rotating body 80 is rotatably supported on the first housing 30 with the torsion spring 15 clamped in place, this protrusion 86 constitutes a temporary fixing part that engages with the protrusion 38a of the support shaft 38 to restrict the rotation of the rotating body 80. Moreover, as Figure 9 As shown, a platform-shaped rotation limiting part 86a is provided at a predetermined circumferential position on the inner circumferential surface of the cylindrical part 83. This rotation limiting part 86a can engage with the protrusion 38a of the support shaft 38. As described above, when the rotating body 80 is temporarily fixed to the support shaft 38 and then permanently fixed to the support shaft 38, the rotation of the rotating body 80 is limited by engaging with the protrusion 38a when the rotating body 80 rotates.

[0111] Furthermore, with the rotating body 80 rotatably supported on the support shaft 38, such as Figure 10 As shown, the cylindrical portion 83 and the rotating portion 88 are accommodated within the shaft hole 66 and the notch 67 of the wheel portion 60, and as... Figure 11 and Figure 12 As shown, the base 81 and peripheral wall 82 of the rotating body 80 are disposed on the surface side of the base 61 of the wheel 60 to prevent the wheel 60 from slipping off.

[0112] In addition, such as Figure 1 As shown, a pair of rod engaging portions 87, 87 with spherical protrusions are provided on the surface of the base 81, opposite to the circumferential portion of the rotating body 80. Furthermore, the pair of rod engaging portions 87, 87, in the anti-disengagement state, are inserted into and engaged with the base ends 14, 14 of a pair of rods 11, 12. The base ends 14, 14 of the pair of rods 11, 12 are pivotally supported at positions opposite to the rotation center C3 of the rotating body 80. Thus, when the rotating body 80 rotates, the pair of rods 11, 12 slide synchronously in opposite directions (towards the direction in which the engaging portions 13, 13 disengage from the locking portions 3, 3) (see reference). Figure 16 ).

[0113] In addition, such as Figure 7 As shown, a rotating portion 88 protrudes from the inside of the base 81 and rotates within the notch 67 formed in the wheel portion 60. Specifically, a long, plate-shaped spring-locking portion 89, opening towards the lower end of the cylindrical portion 83, is provided hanging from a predetermined rib 84 located on the inside of the base 81. A long, plate-shaped receiving portion 90, opening towards the lower end of the cylindrical portion 83, is provided hanging from a rib 84 adjacent in the circumferential direction to the rib 84 that provides the spring-locking portion 89. Furthermore, the top end of the spring-locking portion 89 is connected to the top end of the receiving portion 90 by a connecting wall 91 extending in a generally arcuate shape, thereby providing a generally fan-shaped rotating portion 88 protruding from the inside of the base 81.

[0114] The second wrist 15c of the torsion spring 15, which serves as the force-applying unit, is locked to the spring locking portion 89. Furthermore, as explained in paragraph 0029, the first wrist 15b of the torsion spring 15 is locked to the spring locking groove 39a provided in the first housing 30. With the first wrist 15b and the second wrist 15c facing away from each other, the rotating body 80 is rotatably supported on the support shaft 38 on the side of the first housing 30. Therefore, the rotating body 80 is directed in a direction that brings the second wrist 15c of the torsion spring 15 closer to the first wrist 15b, i.e. Figure 9 , Figure 15 The force is applied in the direction of arrow F1, and as a result, the engaging parts 13, 13 of the pair of rods 11, 12 pivotally supported on the rotating body 80 are forced in the direction of engaging with the locking parts 3, 3.

[0115] In addition, such as Figure 10 As shown, the receiving portion 90 of the rotating body 80, which is subjected to rotational force in the direction of arrow F1 by the torsion spring 15, always abuts against the pressing portion 70 of the wheel portion 60. It should be noted that, since the receiving portion 90 of the rotating body 80, which is subjected to rotational force in the direction of arrow F1 by the torsion spring 15, abuts against the pressing portion 70 of the wheel portion 60, further rotation of the rotating body 80 in the direction of arrow F1 is restricted.

[0116] On the other hand, when the rotating body 80 rotates in a predetermined direction via the support shaft 38, such as Figure 10 , Figure 13 as well as Figure 14 As shown, the receiving part 90 engages with or disengages from the pressing part 70 of the wheel part 60. Furthermore, when the rotating body 80 rotates, the connecting wall 91 of the rotating part 88 rotates along the inner peripheral edge 69 of the notch 67 of the wheel part 60 (see reference). Figure 10 , Figure 13 as well as Figure 14 This guides the rotation of the rotating body 80.

[0117] In addition, such as Figure 10 and Figure 11 As shown, the wheel portion 60 and the rotating body 80 are supported on the housing 21 in a manner that allows them to rotate concentrically. Furthermore, the rotating body 80 is prevented from detaching by the protrusion 38a of the support shaft 38 constituting the rotation support portion, ensuring it does not move away from the bottom wall 31 of the first housing 30. However, at this time, as... Figure 11 and Figure 12 As shown, the base 81 and peripheral wall 82 of the rotating body 80 are mounted on the base 61 of the wheel portion 60. As a result, the wheel portion 60 is prevented from detaching by the rotating body 80 in a manner that does not deviate from the bottom wall 31 of the first housing 30.

[0118] In addition, such as Figure 10 As shown, at least the pressing portion 70 of the rotating body 80 is disposed on the inner side of the peripheral wall 62 of the wheel portion 60, and as... Figure 12 As shown, the pressing part 70 of the wheel portion 60 and the receiving part 90 of the rotating body 80 are disposed within the area surrounded by the base 61 and the peripheral wall 62 of the wheel portion 60. It should be noted that the area surrounded by the base 61 and the peripheral wall 62 includes the thickness of the base 61 and the thickness of the peripheral wall 62. In this embodiment, the pressing part 70 and the receiving part 90 are positioned within the thickness of the base 61 (from the lower surface to the upper surface of the base 61) (covering the entire plate thickness area).

[0119] The rotating body described above is not limited to the shape and structure described above. It can be any shape / structure as long as it has at least a receiving part and can rotate independently relative to the wheel part under the following conditions. It should be noted that in this embodiment, the receiving part 90 is provided on the rotating body 80, but the receiving part can also be provided on the rod (this will be described in other embodiments).

[0120] Next, the operation of the wheel 60 and the rotating body 80 will be explained. In this electric locking device 10, the following configurations (A) to (C) are adopted.

[0121] (A) From the state where the opening 2 is closed by the opening and closing body 5, when the wheel 60 rotates in the opposite direction to the rotational force applied to the rotating body 80, the pressing part 70 of the wheel 60 presses against the receiving part 90 of the rotating body 80, causing the wheel 60 and the rotating body 80 to rotate in the opposite direction to the rotational force applied to the rotating body 80, causing the rods 11 and 12 to slide in the direction of disengagement from the locking parts 3 and 3 (see reference). Figure 13 ).

[0122] (B) When the opening and closing body 5 is opened from the opening 2 in the state described in (A) above, the rotating body 80 is rotated and force is applied through the force application unit. The receiving part 90 of the rotating body 80 presses the pressing part 70 of the wheel part 60, causing the rotating body 80 and the wheel part 60 to rotate in the same direction as the rotational force application direction of the rotating body 80, and causing the rods 11 and 12 to slide in the direction of engaging with the locking parts 3 and 3.

[0123] (C) When the opening / closing body 5 is closed relative to the opening 2 from the state described in (B) above, the rotating body 80 rotates independently of the wheel 60 in a direction opposite to the direction of the rotational force applied to the rotating body 80 via the rods 11 and 12, causing the rods 11 and 12 to slide in the direction of disengagement from the locking parts 3 and 3 (see reference). Figure 14 ).

[0124] Figure 10 The diagram shows the relationship between the wheel 60 and the rotating body 80 in their normal state. In this case, the pressing part 70 of the wheel 60 always abuts against the receiving part 90 of the rotating body 80. That is, when the motor 22 is not operating and the gear 23 is not rotating, and the rotational force via the rods 11 and 12 is in the opposite direction to the direction of rotational force application (in the direction indicated by arrow F2), the rotational force is not applied to the torsion spring 15, which serves as the force application unit, and is directed towards arrow F1 (see reference). Figure 10 In the state where the rotating body 80 is subjected to rotational force in the direction shown in the figure (only the rotational force of the torsion spring 15 acts on the rotating body 80, and the external force from the rod does not act on the rotating body 80), the pressing part 70 abuts against the receiving part 90 of the rotating body 80. In addition, in this state, the spring locking part 89 of the rotating body 80 disengages from the spring abutting part 71 of the wheel part 60.

[0125] Furthermore, when power is supplied to the motor 22 (power is supplied to the actuator 20), the drive shaft 22a of the motor 22 rotates and the gear 23 rotates, causing the wheel 60 to... Figure 10 When the rotating body 80 rotates in the direction indicated by arrow F2 (rotating in the direction opposite to the direction of the rotational force indicated by F1), it abuts against and engages with the pressing part 70 of the receiving part 90, thereby pressing the receiving part 90, and thus... Figure 13 As shown, the rotating body 80 is rotated in the direction indicated by F2. That is, both the rotating body 80 and the wheel 60 rotate together in the direction indicated by F2 (follow-up rotation). As a result, a pair of rods 11, 12 slide in the direction in which the engaging portions 13, 13 of the pair of rods 11, 12 pivotally supported on the rotating body 80 disengage from a pair of locking portions 3, 3 (see reference). Figure 16 ).

[0126] from Figure 13 From the state shown, when the power supply to motor 22 is stopped (power to actuator 20 stops), the drive shaft 22a of motor 22 stops and gear 23 stops rotating, the rotating body 80 is again rotated in the direction shown in F1 by the force applied by torsion spring 15. As a result, the receiving part 90 of rotating body 80 abuts against and presses against the pressing part 70 of wheel part 60, causing wheel part 60 to rotate in the direction shown in F1. That is, both rotating body 80 and wheel part 60 rotate together in the direction shown in F1, resulting in rotating body 80 and wheel part 60 returning to the state shown in F1. Figure 10 The state shown. Furthermore, the pair of rods 11 and 12 slide in the direction where the engaging parts 13 and 13 engage with the pair of locking parts 3 and 3 (see reference). Figure 15 ).

[0127] On the other hand, the rotating body 80 is configured to, in Figure 10 In the state shown, that is, when the rods 11 and 12 are exerted with force in the direction of engaging with the locking parts 3 and 3 by the torsion spring 15 which is the force-applying unit, when the force of rotation in the direction of overcoming the applied force of the force-applying unit acts on the rotating body 80 through the rods 11 and 12, the receiving part 90 moves away from the pressing part 70, and the rotating body 80 can rotate independently of the wheel part 60.

[0128] To explain in more detail, from Figure 10 From the state shown, a pair of rods 11, 12 are pivotally supported on the engaging portions 13, 13 of a rotating body 80 that is subjected to rotational force via a torsion spring 15. Figure 16 When sliding in the direction shown, disengaging from the pair of locking parts 3, 3, Figure 10 The rotational force, indicated by arrow F2, acts on the rotating body 80 via rods 11 and 12. The result is as follows: Figure 14As shown, the wheel 60 does not rotate; only the rotating body 80 overcomes the rotational force applied by the torsion spring 15 in the direction indicated by arrow F1 and rotates independently of the wheel 60 in the direction indicated by arrow F2. Furthermore, as the rotating body 80 rotates, a pair of rods 11 and 12 slide in the direction in which the engaging portions 13 disengage from a pair of locking portions 3 and 3 (see reference). Figure 16 ).

[0129] Furthermore, as described above, when the rotating body 80 rotates independently, such as Figure 14 As shown, within the notch 67 of the wheel portion 60, the rotating portion 88 of the rotating body 80 rotates, and the receiving portion 90 of the rotating body 80 moves away from the pressing portion 70. During this rotation of the rotating body 80 in the direction of arrow F2, the spring-locking portion 89 of the rotating portion 88 abuts against the spring-abutting portion 71 of the notch 67 via the second wrist portion 15c of the torsion spring 15 (see reference). Figure 14 It should be noted that the rotational movement of the rotating body 80 in the direction indicated by arrow F2 is restricted by engaging the platform-shaped rotating body rotation limiting part 86a provided on the inner circumferential surface of the cylindrical part 83 of the rotating body 80 with the protrusion 38a provided on the support shaft 38.

[0130] Furthermore, when the rotational force indicated by arrow F2, via rods 11 and 12, ceases to act on the rotating body 80, the rotating body 80 is again rotated in the direction indicated by F1 by the force applied by the torsion spring 15. The receiving part 90 abuts against and presses against the pressing part 70, causing the wheel part 60 to rotate accordingly via the rotating body 80. The rotating body 80 and the wheel part 60 then return to their original positions. Figure 10 As shown, the pair of rods 11 and 12 slide in the direction where they engage with the locking parts 13 and 13 and the pair of locking parts 3 and 3.

[0131] (Effects)

[0132] Next, refer to Figures 17A to 18C The effects of the electric locking device 10 constructed as described above will be explained.

[0133] Figure 15 and Figure 17A The diagram shows the case where the opening 2 of the fixed body 1 is closed by the opening and closing body 5 and this state is locked. That is, via the rotating body 80 which is rotated and force is applied by the torsion spring 15 as a force application unit, the engaging parts 13, 13 of a pair of rods 11, 12 which are slidably forceped engage with a pair of locking parts 3, 3, thereby locking the opening 2 of the fixed body 1 to the closed state by the opening and closing body 5.

[0134] From this state, with the opening / closing body 5 opened from the opening 2 of the fixed body 1, the switch (not shown) on the surface side of the opening / closing body 5 is operated. In this way, power is supplied to the motor 22 from the power connector connected to a power source (not shown) via busbars 25, 25, thereby driving the drive shaft 22a of the motor 22 to rotate the gear 23. In conjunction with this, the wheel 60 overcomes the rotation of the torsion spring 15 and applies force towards... Figure 10 The wheel rotates in the direction of arrow F2. As a result, the pressing part 70 of the wheel 60 presses against the receiving part 90 of the rotating body 80, as... Figure 13 As shown, both the rotating body 80 and the wheel 60 rotate in the direction indicated by F2, therefore, as Figure 16 As shown, a pair of rods 11 and 12 slide in the direction of disengaging the engaging parts 13 and 13 from a pair of locking parts 3 and 3.

[0135] The result is, as Figure 17B As shown, the engaging part 13 is pulled out from the locking part 3, and the engagement between the engaging part 13 and the locking part 3 is released. Therefore, the opening and closing body 5 rotates downward from the opening 2 of the fixed body 1 due to its own weight, as... Figure 17C As shown, the opening 2 of the fixing body 1 can be opened.

[0136] In addition, such as Figure 17C As shown, when the opening / closing body 5 is open from the opening 2 of the fixed body 1, the drive shaft 22a of the motor 22 stops and the gear 23 stops rotating. Therefore, the rotating body 80 is again rotated in the direction shown by the force applied by the torsion spring 15. As a result, the receiving part 90 of the rotating body 80 presses against the pressing part 70 of the wheel part 60, and both the rotating body 80 and the wheel part 60 rotate in the direction shown by arrow F1. The rotating body 80 and the wheel part 60 then return to their original positions. Figure 10 As shown, the pair of rods 11 and 12 slide in the direction where they engage with the locking parts 13 and 13 and the pair of locking parts 3 and 3.

[0137] On the other hand, from Figure 17C From the state shown, when the opening 2 of the fixing body 1 is to be closed and the opening / closing body 5 is pressed into the opening 2, as shown... Figure 18A As shown, the conical surface 13a of the engaging portion 13 of each rod 11, 12 is pressed against the inner edge of the opening 2, overcoming the force applied by the torsion spring 15, thereby pulling the pair of rods 11, 12 into the inner side of the opening / closing body 5 (see reference). Figure 18B ).

[0138] At this moment, a rotational force, acting in the direction indicated by arrow F2 via rods 11 and 12, acts on the rotating body 80, as follows: Figure 14As shown, only the rotating body 80 overcomes the rotational force applied in the direction indicated by arrow F1 generated by the torsion spring 15, and rotates independently of the wheel 60 in the direction indicated by arrow F2. Simultaneously, a pair of rods 11, 12 slide in the direction in which the engaging portions 13, 13 disengage from a pair of locking portions 3, 3.

[0139] Then, the opening and closing body 5 is further pressed in, as... Figure 18C As shown, when the engaging portion 13 of each rod 11 and 12 reaches the locking portion 3, the rotational force indicated by arrow F2 via rods 11 and 12 ceases to act on the rotating body 80. Therefore, through the applied force of the torsion spring 15, the rotating body 80 is again rotated in the direction indicated by F1, and the rotating body 80 returns to its original position. Figure 10 The state shown (it should be noted that wheel 60 has been restored to) Figure 10 In the state shown, via the rotating body 80, rods 11 and 12 are pressed outwards towards the opening and closing body 5, and each engaging part 13 engages with a pair of locking parts 3 (see reference). Figure 15 As a result, the opening 2 of the fixed body 1 can be locked back into a closed state by the opening and closing body 5.

[0140] Furthermore, the electrically operated locking device 10 is configured as follows: from Figure 17C From the open state shown, when the opening / closing body 5 is pressed in, as... Figure 18A and Figure 18B As shown, each rod 11, 12 is pressed against the inner edge of the opening 2, overcoming the force applied by the torsion spring 15, thereby pulling the pair of rods 11, 12 into the inner side of the opening / closing body 5. However, at this time, as... Figure 14 As shown, only the rotating body 80 can overcome the rotational force applied in the direction indicated by arrow F1 generated by the torsion spring 15 and rotate independently of the wheel 60 in the direction indicated by arrow F2.

[0141] That is, when the opening / closing body 5 is pressed in, the wheel portion 60 that meshes with the gear 23 does not rotate, and only the rotating body 80 rotates. Therefore, less pressing force is needed to pull in the rods 11 and 12, and the engaging portions 13 and 13 of the rods 11 and 12 engage with the locking portions 3 and 3 again. As a result, the pressing load when closing the opening / closing body 5 can be reduced.

[0142] In addition, when the opening / closing body 5 is pressed, such as Figure 18CAs shown, when the engaging portions 13 of each rod 11 and 12 reach the locking portion 3, the rotating body 80 is rotated in the direction indicated by arrow F1 by the torsion spring 15, which acts as a force-applying unit. The rods 11 and 12 are pressed out, and the engaging portions 13 and 13 engage with the locking portions 3 and 3. At this time, the torsion spring 15, which acts as a force-applying unit, does not apply force to the wheel portion 60 and the rotating body 80, but only applies rotational force to the rotating body 80. As a result, rotational force can be reliably applied to the rotating body 80, and the engaging portions 13 and 13 of the rods 11 and 12 can be reliably engaged with the locking portions 3 and 3, preventing malfunctions in the closing state of the opening portion 2 of the fixed body 1 by the opening / closing body 5.

[0143] Moreover, in this embodiment, such as Figure 12 As shown, the pressing part 70 of the wheel portion 60 and the receiving part 90 of the rotating body 80 are arranged in the area surrounded by the base 61 and the peripheral wall 62 of the wheel portion 60. Therefore, the wheel portion 60 and the rotating body 80 can be compactly arranged in the axial direction of the wheel portion 60 and the rotating body 80.

[0144] Furthermore, in this embodiment, the housing 21 has a rotation support portion (here, a support shaft 38) that supports the rotating body 80 so that it is rotatable. The rotating body 80 is prevented from detaching by the rotation support portion (here, it is prevented from detaching by the protrusion 38a of the support shaft 38), and the wheel portion 60 is prevented from detaching by the rotating body 80 (here, the base 81 of the rotating body 80) (see reference). Figure 11 and Figure 12 ).

[0145] That is, the rotating body 80 is prevented from detaching by the rotating support portion of the housing 21, and the wheel portion 60 is also prevented from detaching by the rotating body 80. Therefore, for example, after the wheel portion 60 is rotatably supported on the housing 21, the rotating body 80 is prevented from detaching by the rotating support portion of the housing 21, thereby preventing both the wheel portion 60 and the rotating body 80 from detaching.

[0146] Specifically, the wheel 60 and the rotating body 80 are assembled into the housing 21 through the following processes (a) to (d).

[0147] (a) Secure the first wrist 15b of the torsion spring 15 to the spring locking groove 39a of the spring locking wall 39 of the first housing 21, and after placing the torsion spring 15 on the bottom wall 31 of the first housing 21, place the winding portion 15a of the torsion spring 15 inside the peripheral wall 62 of the wheel portion 60 (attach the wheel portion 60 externally to the winding portion 15a of the torsion spring 15).

[0148] (b) The second wrist 15c of the torsion spring 15 is locked to the spring locking part 89 of the rotating body 80, and the state is maintained. The rotating part 88 of the rotating body 80 is aligned with the notch 67 of the wheel part 60, and the axial notch 85a of the rotating body 80 is aligned with the protrusion 38a of the support shaft 38.

[0149] (c) Insert the rotating part 88 of the rotating body 80 into the upper opening of the notch 67 of the wheel part 60, and insert the support shaft 38 into the lower opening of the cylinder part 83, so that the protrusion 38a of the support shaft 38 is inserted out from the upper opening of the axial notch 85a of the rotating body 80.

[0150] (d) The rotating body 80 is rotated in the opposite direction against the rotational force applied by the torsion spring 15, causing the protrusion 38a of the support shaft 38 to rotate until it passes the protrusion 86 of the rotating body 80. As a result, the protrusion 38a of the support shaft 38 is offset in the circumferential direction relative to the axial notch 85a of the rotating body 80, the rotating body 80 is held in place relative to the support shaft 38, and the wheel portion 60 is also held in place by the base 81 and peripheral wall 82 of the rotating body 80 mounted on the base 61 of the wheel portion 60.

[0151] As described above, in the electric locking device 10 of this embodiment, the wheel 60 and the rotating body 80 can be easily assembled into the housing 21, and the anti-detachment retention structure of the wheel 60 can be simplified.

[0152] Furthermore, in this embodiment, such as Figure 11 As shown, the rotating body 80 is rotatably supported on the housing 21 via the support shaft 38. The housing 21 has a bottom wall 31, from which a cylindrical wall 41 is erected concentrically around the outer periphery of the support shaft 28. The wheel portion 60 is rotatably supported on the cylindrical wall 41.

[0153] According to this design, the rotating body 80 is rotatably supported on the housing 21 via the support shaft 38, and the wheel portion 60 is rotatably supported by the cylindrical wall 41 of the housing 21. The wheel portion 60 and the rotating body 80 rotate around the same axis, thus the wheel portion 60 and the rotating body 80 are not eccentric, allowing for easy and precise engagement of the pressing portion 70 of the wheel portion 60 with the receiving portion 90 of the rotating body 80. Furthermore, the wheel portion 60 is rotatably supported on the cylindrical wall 41, which has a larger diameter than the support shaft 38 located on the outer periphery of the support shaft, thus preventing wobbling during rotation.

[0154] Moreover, in this embodiment, such as Figure 11 As shown, the wheel portion 60 has a base portion 61 and a peripheral wall 62 with teeth 65 that mesh with the gear 23. A platform-shaped recess 62b is formed on the inner surface of the end of the peripheral wall 62 on the bottom wall 31 side of the housing 21. The top end portion 41a of the cylindrical wall 41 on the housing 21 side is disposed in the recess 62b, supporting the wheel portion 60 to be rotatable.

[0155] According to this design, the top end 41a of the cylindrical wall 41 of the housing 21 is disposed in the platform-shaped recess 62b of the peripheral wall 62 of the wheel portion 60, supporting the wheel portion 60 so that it can be rotated. Therefore, the wheel portion 60 can be precisely positioned in the specified position of the housing 21.

[0156] (Second embodiment of the electric locking device for the opening and closing body)

[0157] exist Figures 19-21 The figure shows a second embodiment of the electrically operated locking device for the opening and closing body of the present invention. It should be noted that parts that are substantially the same as those in the above embodiment are labeled with the same reference numerals and their descriptions are omitted.

[0158] In the electrically operated locking device 10 of the described embodiment, the force-applying unit is a torsion spring 15, which indirectly applies force to a pair of rods 11 and 12 by rotating the rotating body 80. In contrast, the electrically operated locking device 10A (hereinafter also referred to as "electric locking device 10A") of this embodiment has the following structure: the force-applying unit is a helical spring 16, which directly applies force to a pair of rods 11 and 12. Furthermore, the structures of the wheel 60A and the rotating body 80A are also different.

[0159] like Figure 19 As shown, a spring-locking part 17 protrudes near the top of one of the rods 11A. Furthermore, a spring-locking part 18 is also provided on the opening / closing body (not shown). One end 16a of the helical spring 16, constituting the force-applying unit, is locked to the spring-locking part 17, and the other end 16b is locked to the spring-locking part 18. As a result, the engaging part 13 of the rod 11A is forceped in the direction of engaging with the locking part 3 (not shown), and simultaneously, the rotating body 80A is also forceped... Figure 19 The force is applied in the direction indicated by arrow F1. Furthermore, via the rotating body 80A, the engaging portion 13 of the rod 12 is also applied in the direction of engaging with the locking portion 3 (not shown).

[0160] like Figure 20 As shown, a disc-shaped raised portion 37 protrudes from the inner surface of the bottom wall 31 of the first housing 30, and a support shaft 38 protrudes from the radial center of the raised portion 37. Furthermore, a cylindrical wall 37a is erected from the outer periphery of the raised portion 37.

[0161] Furthermore, the wheel portion 60A has a circular shaft hole 66a formed in the base 61 (without the notch 67 as in the described embodiment), and a cylindrical shaft portion 72 (see reference) hangs down from the inner periphery of the shaft hole 66a. Figure 20 Furthermore, protruding pressing portions 70A, 70A (see reference) are provided on the surface of the base 61 of the wheel portion 60A and in radially opposite positions. Figure 21 ).

[0162] Furthermore, the rotating body 80A has a pair of roughly fan-shaped recesses 92, 92 formed on the inner side of the base 81 (see reference). Figure 21 The pair of pressing portions 70A, 70A of the wheel portion 60A are rotatably housed within the pair of recesses 92, 92. Furthermore, the inner edge of one circumferential end of each recess 92 constitutes a receiving portion 90A for locking the pressing portion 70A and receiving the pressing force of the pressing portion 70A.

[0163] Furthermore, in this embodiment, similarly to the first embodiment, when the drive shaft 22a of the motor 22 rotates and the gear 23 rotates, the wheel portion 60A moves towards... Figure 19 When rotating in the direction indicated by arrow F2, the pressing part 70A abuts against and engages with the receiving part 90A, pressing the receiving part 90A and causing the rotating body 80A to rotate in the direction indicated by F2, causing both the rotating body 80A and the wheel part 60A to rotate accordingly.

[0164] Furthermore, the rotating body 80A is configured to, in Figure 19 In the state shown, that is, when the rods 11A and 12 are subjected to force in the direction of engaging with the locking parts 3 and 3 by the helical spring 16 as the force-applying unit, when the force of rotation in the direction of overcoming the applied force of the force-applying unit acts on the rotating body 80A via the rods 11A and 12, the receiving part 90A moves away from the pressing part 70A, and the rotating body 80A can rotate independently of the wheel part 60A.

[0165] Therefore, the electric locking device 10A of this embodiment can also achieve the same effect as the electric locking device 10 of the above embodiment.

[0166] Furthermore, in this electric locking device 10A, the rod 11A is force-applied by the helical spring 16, which serves as a force-appliing unit. Since no force-appliing unit is clamped between the wheel 60A and the rotating body 80A, the wheel 60A and the rotating body 80A can be made radially compact.

[0167] (Third embodiment of the electric locking device for the opening and closing body)

[0168] exist Figures 22 to 26C The figure shows a third embodiment of the electrically operated locking device for the opening and closing body of the present invention. It should be noted that parts that are substantially the same as those in the described embodiment are labeled with the same reference numerals and their descriptions are omitted.

[0169] In this embodiment, the electric locking device 10B (hereinafter also referred to as "electric locking device 10B") of the opening and closing body is configured to have a receiving part 19 on the rod 12B and a pressing part 70B on the wheel part 60B, and is configured to directly slide the rod 12B by the rotation of the wheel part 60B.

[0170] Like the electrically operated locking device 10A in the aforementioned embodiment, lever 11A is also forced by torsion spring 15 (see reference). Figure 22 ).

[0171] Furthermore, a rod connecting portion 14a is provided at the base end 14 of rod 12B, and a spherically protruding rod engaging portion 87 engages with the inner side of the rod connecting portion 14a from the surface side of the base 81 of the rotating body 80A (the side opposite to the rods 11A and 12B) of the rod connecting portion 14a (see reference). Figure 25 The rod 12B is engaged, thereby connecting it to the rotating body 80A. Furthermore, a receiving portion 19 protrudes from the outer surface of the rod connection portion 14a of the rod 12B. This receiving portion 19 has a receiving surface 19a orthogonal to the axial direction of the rod 12B.

[0172] Moreover, such as Figure 23 As shown, an arc-shaped notch 51b is formed within a defined range of the inner periphery of the opening 51a formed in the top wall 51 of the second housing 50 constituting the housing 21.

[0173] In addition, such as Figure 24 As shown, a base portion 73, extending widely along the circumference of the wheel portion 60B, is provided on the surface side of the base portion 61 of the wheel portion 60B and closer to the inner diameter than the teeth 65 formed on the peripheral wall 62. A pressing portion 70B, in the shape of a circular protrusion (circular pin), protrudes from this base portion 73. That is, the pressing portion 70B protrudes from the surface side of the base portion 81 of the rotating body 80A in the same direction as the protrusion direction of the spherically protruding rod engaging portion 87 (see reference). Figure 25 Furthermore, these base portions 73 and pressing portions 70B are inserted from the notch portion 51b of the second housing 50.

[0174] And, as Figure 26A As shown, with the opening 2 closed by the opening / closing body 5, the rotating body 80A is rotated in the direction indicated by arrow F1 via the rod 11A, which is force-applied by the torsion spring 15, and the engaging portion 13 of the rod 12B is force-applied in the direction of engaging with the locking portion 3 (not shown) via the rotating body 80A. In this state, the pressing portion 70B of the wheel 60B abuts against and engages with the receiving surface 19a of the receiving portion 19 of the rod 12B.

[0175] From the above state, when the opening / closing body 5 is opened from the opening 2 of the fixed body 1, and the switch (not shown) on the surface side of the opening / closing body 5 is operated, the drive shaft 22a of the motor 22 drives the gear 23 to rotate, and in conjunction with this, the rotating body 80A rotates in the direction of arrow F2, overcoming the rotational force applied by the torsion spring 15. Thus, as... Figure 26BAs shown, the pressing part 70B of the wheel 60B presses the receiving part 19 of the rod 12B, and the engaging part 13 of the rod 12B slides in the direction of disengaging from the locking part 3. At the same time, the rotating body 80A rotates in the direction of arrow F2 via the rod 12B, so the rod 11A slides in the direction of disengaging from the locking part 3 in conjunction with the rotation of the rotating body 80A.

[0176] As a result, the engaging parts 13, 13 are pulled out from the pair of locking parts 3, 3, and the engaging parts 13 of the levers 11A, 12B with each locking part 3 are released. Therefore, the opening and closing body 5 can rotate downward from the opening 2 of the fixed body 1 due to its own weight and open the opening 2 of the fixed body 1.

[0177] Furthermore, in a state where the engaging portions 13, 13 of rods 11A and 12B are forced in a direction to engage with a pair of locking portions 3, 3 via the torsion spring 15 ( Figure 26A In the state shown, when the opening 2 of the fixing body 1 is to be closed and the opening 2 is pressed into the opening 5, the conical surface 13a of the engaging part 13 of each rod 11A and 12B is pressed against the inner edge of the opening 2, overcoming the force applied by the torsion spring 15, thereby pulling a pair of rods 11A and 12B into the inner side of the opening 5.

[0178] At this moment, a rotational force, acting in the direction indicated by arrow F2 via rods 11A and 12B, acts on the rotating body 80A, as follows: Figure 26C As shown, the wheel 60B does not rotate; only the rotating body 80A overcomes the rotational force generated by the torsion spring 15 in the direction indicated by arrow F1 and rotates independently of the wheel 60B in the direction indicated by arrow F2. That is, the rotating body 80A rotates independently of the wheel 60B in the direction away from the pressing part 70B of the receiving part 19 of the rod 12B.

[0179] Therefore, the electric locking device 10B of this embodiment can also achieve the same effect as the electric locking devices 10 and 10A of the above embodiments.

[0180] Furthermore, in this embodiment, a receiving portion 19 is provided on the rod 12B, and the pressing portion 70B of the wheel portion 60B engages and presses against the receiving portion 19 (see reference). Figure 26A Therefore, the rod 12B can slide quickly during the rotation of the wheel 60B. That is, the rod 12B can slide directly without going through the rotating body 80A, so the responsiveness of the rod 12B when sliding is good.

[0181] Furthermore, the pressing part 70B provided on the wheel part 60B protrudes in the same direction as the protruding direction of the rod engaging part 87 protruding from the surface side of the rotating body (see reference). Figure 25As a result, the pressing part 70B is arranged in a partially overlapping manner in the thickness direction of the rod 12B that engages with the rod engaging part 87, so that the locking device 10B can be configured to be more compact in its height direction (thickness direction).

[0182] (Fourth embodiment of the electric locking device for the opening and closing body)

[0183] exist Figures 27-35 The fourth embodiment of the electrically operated locking device for the opening and closing body of the present invention is shown. It should be noted that parts substantially the same as those in the described embodiment are labeled with the same reference numerals and their descriptions are omitted.

[0184] Compared with the previous embodiment, the electric locking device for the opening and closing body in this embodiment has a different shape of the cylindrical wall 41C of the first housing 30 and a different rotation range of the rotating body 80.

[0185] That is, in this embodiment, such as Figure 33 As shown, the wheel portion 60 is rotatably supported on the outside of the cylindrical wall 41C of the first housing 30 constituting the housing 21, as... Figures 27-29 As shown, the outer side of the cylindrical wall 41C is provided with an axial notch 43 formed on the axial direction of the cylindrical wall 41C and the peripheral wall 62 of the wheel portion 60, and a radial recess 45 formed on the radial direction of the cylindrical wall 41C and the peripheral wall 62, and a non-contact surface 49 in which the cylindrical wall 41C and the peripheral wall 62 do not contact each other.

[0186] To explain in more detail, such as Figure 28 As shown, the cylindrical wall 41C is generally cylindrical, similar to the embodiment described above.

[0187] In addition, such as Figure 33 As shown, the cylindrical wall 41C is a portion in which the top end portion 41a in the upright setting direction from the bottom wall 31 faces the end face 62c of the top end portion in the extending direction of the peripheral wall 62 of the wheel portion 60, and an axial notch 43 is formed in this facing portion.

[0188] Here, as Figure 28 As shown, an axial notch 43 is formed. This axial notch 43 extends from the top surface 41b of the top portion 41a in the upright direction of the cylindrical wall 41C toward the base end side in the upright direction, and is formed with a predetermined depth in the axial direction of the cylindrical wall 41C and a predetermined width in the circumferential direction of the cylindrical wall 41C. Furthermore, as... Figure 29As shown, multiple (four in this case) axial notches 43 are formed at equal intervals in the circumferential direction of the cylindrical wall 41C. Furthermore, each axial notch 43 has tapered portions 43a, 43a at both ends in the circumferential direction, which gradually widen the axial notch 43 by pointing towards the top of the cylindrical wall 41 in the upright setting direction.

[0189] Furthermore, a radial recess 45 is formed on the opposing surface of the cylindrical wall 41C and the peripheral wall 62 of the wheel portion 60 (also referred to as the outer surface opposing the inner surface of the peripheral wall 62; hereinafter, also referred to as the "peripheral wall opposing surface").

[0190] like Figure 28 As shown, in this embodiment, the radial recess 45 is located at a position on the cylindrical wall 41C that matches the axial notch 43, and is formed as a groove recessed to a predetermined depth on the radially inner side of the cylindrical wall 41C from the opposing surface of the peripheral wall of the cylindrical wall 41C toward the opposite surface in the thickness direction. Furthermore, as... Figure 29 As shown, the radial recess 45 corresponds to a plurality of axial notches 43, which are formed at equal intervals (four in this case) in the circumferential direction of the cylindrical wall 41C.

[0191] In addition, such as Figure 28 As shown, in the cylindrical wall 41C, a wheel support portion 47 is provided between the circumferentially adjacent axial notches 43, 43. Figure 32 As shown, with the peripheral wall 62 of the wheel portion 60 disposed on the outer side of the cylindrical wall 41C and the wheel portion 60 rotatably supported on the outer side of the cylindrical wall 41C, the wheel support portion 47 is disposed close to the inner surface (the surface facing the cylindrical wall 41C) of the peripheral wall 62 of the wheel portion 60 and becomes part of supporting the wheel portion 60.

[0192] Moreover, such as Figure 33 As shown, with the peripheral wall 62 of the wheel portion 60 disposed on the outside of the cylindrical wall 41C and the wheel portion 60 rotatably supported on the outside of the cylindrical wall 41C, the surface of the radial recess 45 facing the peripheral wall 62 of the wheel portion 60 is separated from the inner surface of the peripheral wall 62, and this surface constitutes a non-contact surface 49 where the cylindrical wall 41C and the peripheral wall 62 do not contact each other.

[0193] Furthermore, in this embodiment, such as Figure 31 As shown, when the wheel portion 60 is viewed radially, the specified wheel support portion 47 is configured to overlap with the gear 23.

[0194] If both are referenced Figure 27 When viewed radially from the wheel portion 60, the wheel support portion 47 among the plurality of wheel support portions 47 is arranged close to the gear 23. Figure 27 In the first housing 30, the gear support portion 47 of the gear arrangement portion 34 is configured to overlap with the gear 23 (see reference). Figure 31 ).

[0195] In addition, such as Figure 29 As shown, a spring locking groove 39a is formed at a predetermined circumferential position on the spring locking wall 39 located on the inner side of the cylindrical wall 41C. However, the spring locking groove 39a in this embodiment differs from that in the first embodiment. Figure 4 Compared to the spring retaining groove 39a shown, this one is positioned close to the protrusion 38a on the outer periphery of the protruding top portion of the support shaft 38 in the circumferential direction of the spring retaining wall 39. As a result, in this fourth embodiment, the assembly angle of the torsion spring 15 relative to the spring retaining wall 39 is different compared to the first embodiment.

[0196] Furthermore, in this fourth embodiment, Figure 34 , Figure 35 The number of teeth, module, and... of the teeth 65 formed on the outer periphery of the peripheral wall 62 of the wheel portion 60 shown are... Figure 10 , Figure 13 as well as Figure 14 The number of teeth and the module of the teeth 65 of the wheel portion 60 in the first embodiment shown are different.

[0197] Moreover, in this embodiment, such as Figure 27 and Figure 30 As shown, the pressing part 70 provided at one circumferential end of the notch 67 of the wheel part 60 is positioned near the protrusion 63 on the outer periphery of the peripheral wall 62 of the wheel part 60, and the spring abutment part 71 provided at the other circumferential end of the notch 67 is positioned at the circumferential middle position of a pair of protrusions 63 and 64 on the outer periphery of the peripheral wall 62.

[0198] In addition, such as Figure 30 As shown, the rotating body 80 in this embodiment has a shorter circumferential length than the rotating part 88 of the rotating body 80 in the previous embodiment, and the rotation range within the notch 67 of the wheel part 60C is larger.

[0199] Furthermore, in this electric locking device 10C, within the rotation range of the wheel 60 that is rotated by the motor 22, the direction of the force applied from the receiving part 90 to the pressing part 70 by the force-applying unit is set to not be toward the part where the gear 23 meshes with the tooth 65.

[0200] It should be noted that "rotation range of the wheel" refers to: (1) from the state where the rotation of the wheel 60 stops, by energizing the actuator 20, the motor 22 drives the gear 23 to rotate, and the wheel 60 rotates in a specified direction ( Figure 34After rotating in the direction indicated by F2, the range of stopping the drive of motor 22 and the rotation of gear 23 is stopped by energizing actuator 20; and (2) from the state where the drive of motor 22 and the rotation of gear 23 have stopped and the rotation of wheel 60 has stopped, the receiving part 90 of rotating body 80 presses the pressing part 70 of wheel 60, and wheel 60 moves in the opposite direction to the specified direction ( Figure 34 The direction shown by F1, also known as the return direction of wheel 60, is the range of rotation.

[0201] This will be explained in comparison with the first embodiment. Figure 10 The electric locking device 10 of the first embodiment is shown in its normal state, i.e., the state in which the motor 22 is not driven and the gear 23 is not rotated (the state before the actuator 20 is energized). In this normal state, the receiving portion 90 of the rotating body 80, which is rotated and force is applied by the torsion spring 15 as a force-applying unit, presses the pressing portion 70 of the wheel portion 60. That is, the applied force F3 of the force-applying unit acts on the pressing portion 70 of the wheel portion 60 from the receiving portion 90 of the rotating body 80 (or the applied force F3 acts on the pressing portion 70 via the receiving portion 90), but in the case of the electric locking device 10 of the first embodiment, the above-mentioned applied force F3 is directed towards the portion where the gear 23 meshes with the tooth 65.

[0202] In the case of the electric locking device 10C in the fourth embodiment, by setting the assembly angle of the torsion spring 15 relative to the spring locking wall 39 to a different angle than in the first embodiment, the applied force F3 from the receiving part 90 of the rotating body 80 acting on the pressing part 70 of the wheel part 60 in the normal state does not move toward the part where the gear 23 meshes with the tooth 65.

[0203] In this embodiment, such as Figure 34 As shown, with the torsion spring 15 assembled to the spring retaining wall 39 and the peripheral wall 62 of the wheel portion 60 positioned outside the cylindrical wall 41C, the pressing part 70 of the wheel portion 60 and the receiving part 90 of the rotating body 80 that abuts against it are positioned at a position that intersects (or is orthogonal to) the axial direction of the drive shaft 22a of the motor 22 and the gear 23. (Alternatively, the pressing part 70 and the receiving part 90 are positioned at...) Figure 34 (The position of six o'clock on the paper).

[0204] It should be noted that, in this embodiment, by energizing the actuator 20, the motor 22 drives the gear 23 to rotate, and the wheel 60 rotates in the direction indicated by arrow F2 (clockwise in the figure). However, in this case, it is preferable that the pressing part 70 and the receiving part 90 are configured to... Figure 34 The position on the paper is between 6 o'clock and 12 o'clock.

[0205] Furthermore, in the case of the electric locking device 10C of this fourth embodiment, when the actuator 20 is energized, the motor 22 is driven and the gear 23 rotates, and the wheel 60 and the rotating body 80 rotate to their maximum extent (see reference). Figure 35 The rotating body 80 is rotated in the direction indicated by arrow F1 by the force applied by the torsion spring 15, and the receiving part 90 presses the pressing part 70 of the wheel part 60, so that the wheel part 60 is to be rotated in the direction indicated by arrow F1. Figure 35 Rotate in the direction indicated by arrow F1 and return to Figure 34 The state shown is such that even in this state, the applied force F3 from the receiving part 90 of the rotating body 80 acting on the pressing part 70 of the wheel part 60 does not move toward the part where the gear 23 meshes with the tooth 65.

[0206] (Modifications of the fourth embodiment)

[0207] In this embodiment, the peripheral wall 62 of the wheel portion 60 is disposed on the outer side of the cylindrical wall 41C, but the peripheral wall of the wheel portion may also be disposed on the inner side of the cylindrical wall. Furthermore, in this embodiment, the axial notch 43 and the radial recess 45 are formed on the cylindrical wall 41C side, but the axial notch and / or the radial recess may also be formed on the peripheral wall side of the wheel portion. Moreover, in this embodiment, both the axial notch 43 and the radial recess 45 are formed on the cylindrical wall 41C, but only one of the axial notch and the radial recess may be formed on the cylindrical wall 41C.

[0208] That is, except Figures 27-35 In addition to the structure shown (where the peripheral wall of the wheel portion is positioned on the outside of the cylindrical wall, and the axial notch and radial recess are formed in the cylindrical wall), the following structures are also possible:

[0209] (1) The peripheral wall of the wheel is located on the outside of the cylindrical wall, and the axial notch or radial recess is formed on the cylindrical wall;

[0210] (2) The peripheral wall of the wheel is disposed on the inner side of the cylindrical wall, and the axial notch and / or radial recess are formed in the cylindrical wall;

[0211] (3) The peripheral wall of the wheel portion is disposed on the outside of the cylindrical wall, and an axial notch and / or a radial recess is formed on the peripheral wall of the wheel portion (this will be described in detail in the fifth embodiment described later).

[0212] (4) The peripheral wall of the wheel portion is located on the inner side of the cylindrical wall, and the axial notch and / or radial recess are formed on the peripheral wall of the wheel portion.

[0213] Furthermore, in the fourth embodiment, by energizing the actuator 20, the rotating body 80 is directed to... Figure 34 The rotation can be in the direction indicated by arrow F2, but it can also be, conversely, by energizing actuator 20, causing the rotating body 80 to rotate in the direction indicated by arrow F2. Figure 34The wheel rotates in the direction indicated by arrow F1 (counterclockwise in the figure). In this case, it is preferable that the pressing part of the wheel and the receiving part of the rotating body are configured to... Figure 34 The position on the paper is between 12 o'clock and 6 o'clock.

[0214] (Effects of the fourth embodiment)

[0215] Next, the effects of the electric locking device constructed as described above will be explained.

[0216] That is, in the case of this embodiment, such as Figure 33 As shown, one of the cylindrical wall 41C and the peripheral wall 62 (here, the cylindrical wall 41C) is provided with an axial notch 43, a radial recess 45, and a non-contact surface 49, thereby reducing the sliding resistance between the cylindrical wall 41C and the peripheral wall 62.

[0217] The result is that, from such Figure 35 From the state where the power supply to the actuator 20 stops and the drive of the motor 22 and the rotation of the gear 23 stop, the rotating body 80 is rotated in the direction indicated by arrow F1 by the force applied by the torsion spring 15, which is the force-applying unit. The receiving part 90 of the rotating body 80 presses against the pressing part 70 of the wheel part 60, and the wheel part 60 is to be returned to its original position. Figure 34 When in the state shown, the wheel 60 can be easily returned.

[0218] Furthermore, in this embodiment, at least a plurality of axial notches 43 are formed in the cylindrical wall 41C, and a plurality of wheel support portions 47 are provided between these axial notches 43, such as... Figure 31 As shown, when the wheel portion 60 is viewed radially, the specified wheel support portion 47 is configured to overlap with the gear 23.

[0219] According to the above scheme, when the wheel portion 60 is viewed radially, the specified wheel support portion 47 is configured to overlap with the gear 23. Therefore, even if the force from the gear 23 acts on the tooth 65 of the wheel portion 60 and the wheel portion 60 is inclined, the specified wheel support portion 47 will support the peripheral wall 62 of the wheel portion 60, making it difficult for the wheel portion 60 to tilt and maintaining the wheel portion 60 in a stable posture.

[0220] Moreover, in this embodiment, such as Figure 34 As shown, within the rotation range of the wheel 60 that is rotated by the motor 22, the direction of the force applied from the receiving part 90 to the pressing part 70 by the force-applying unit (here, torsion spring 15) is set to not be toward the part where the gear 23 meshes with the tooth 65.

[0221] According to the above scheme, the above configuration can prevent the wheel portion 60 from facing closer to the gear 23, thus suppressing the increase in resistance between the gear 23 and the tooth 65. As a result, when moving from... Figure 35 Starting from the state shown, to return wheel 60 to the state shown... Figure 34 In the state shown, the wheel 60 can return more easily.

[0222] (Fifth embodiment of the electric locking device for the opening and closing body)

[0223] exist Figure 36 and Figure 37 The fifth embodiment of the electrically operated locking device for the opening and closing body of the present invention is shown. It should be noted that parts substantially the same as those in the described embodiment are labeled with the same reference numerals and their descriptions are omitted.

[0224] The electric locking device of the opening and closing body in this embodiment differs from the fourth embodiment in that it has an axial notch 100 and a radial recess 105 formed on the peripheral wall 62D of the wheel portion 60D.

[0225] like Figure 37 As shown, the top end of the peripheral wall 62D of the wheel portion 60D in the extending direction is a portion that faces the top end of the cylindrical wall 41 of the first housing 30 constituting the housing 21 in the upright setting direction, and an axial notch 100 is formed in this facing portion.

[0226] Here, an enlarged diameter portion 62a is formed at the top end of the peripheral wall 62D in the extending direction, and a platform-shaped recess 62b is formed on the inner surface side of the enlarged diameter portion 62a. An end face 62c is provided at the top end of the peripheral wall 62D in the upright direction, inside the enlarged diameter portion 62a and connected to the recess 62b, and an axial notch portion 100 is formed therein (see reference). Figure 36 The axial notch 100 is formed by cutting a predetermined width and depth along the axial direction of the peripheral wall 62D from the end face 62c toward the base end side in the upright setting direction. Furthermore, as... Figure 36 As shown, the axial notch 100 is formed in multiple (four in this case) at equal intervals in the circumferential direction of the peripheral wall 62D. Furthermore, each axial notch 100 has a tapered portion 101, 101 at both ends in the circumferential direction, which gradually widens the axial notch 100 by pointing towards the top of the upright setting direction of the peripheral wall 62D.

[0227] Furthermore, a radial recess 105 is formed on the surface of the peripheral wall 62D that faces the cylindrical wall 41 of the first housing 30 (also referred to as the inner surface that faces the outer surface of the cylindrical wall 41, hereinafter also referred to as the "cylindrical wall facing surface").

[0228] like Figure 36As shown, in this embodiment, the radial recess 105 is located at a position on the peripheral wall 62D that matches the axial notch 100, and is formed as a groove recessed to a predetermined depth on the radially outer side of the peripheral wall 62D from the opposing surface of the cylindrical wall of the peripheral wall 62D toward the opposite surface in the thickness direction. Furthermore, as... Figure 36 As shown, the radial recess 105 corresponds to a plurality of axial notches 100, which are formed at equal intervals (four in this case) in the circumferential direction of the peripheral wall 62D.

[0229] In addition, such as Figure 36 As shown, a wheel support portion 107 is provided in the peripheral wall 62D between the axial notches 100, 100 adjacent in the circumferential direction. Furthermore, when the peripheral wall 62D is disposed on the outside of the cylindrical wall 41 of the first housing 30 and the wheel portion 60 is rotatably supported on the outside of the cylindrical wall 41 of the first housing 30, the aforementioned wheel support portion 107 is disposed close to the outer surface of the cylindrical wall 41 (the surface facing the peripheral wall 62D) and becomes part of supporting the wheel portion 60.

[0230] In addition, such as Figure 37 As shown, with the peripheral wall 62D disposed on the outside of the cylindrical wall 41 and the wheel portion 60 rotatably supported on the outside of the cylindrical wall 41, the surface of the radial recess 105 facing the cylindrical wall 41 side of the first housing 30 is separated from the outer surface of the cylindrical wall 41, and this surface constitutes a non-contact surface 109 where the cylindrical wall 41 and the peripheral wall 62D do not contact each other.

[0231] The electric locking device of the fifth embodiment, which constitutes the above-described structure, can also achieve the same effect as the electric locking device of the fourth embodiment.

[0232] It should be noted that the present invention is not limited to the above-described embodiments. Various modified embodiments are possible within the scope of the present invention, and such embodiments are also included within the scope of the present invention.

[0233] Explanation of reference numerals in the attached figures:

[0234] 1: Fixed body; 2: Opening; 3: Locking part; 5: Opening and closing body; 10, 10A, 10B: Electric locking device for the opening and closing body; 11, 11A, 12, 12B: Rod; 13: Engaging part; 15: Torsion spring (force application unit); 16: Helical spring (force application unit); 19: Receiving part; 20: Actuator; 21, 21B: Housing; 22: Motor; 23: Gear; 30: First housing; 31: Bottom wall; 32: Peripheral wall; 38: Support shaft (rotary support part); 41. 41C: Cylindrical wall; 43: Axial notch; 45: Radial recess; 47: Wheel support; 49: Non-contact surface; 50: Second shell; 51: Top wall; 52: Peripheral wall; 60, 60A: Wheel; 61: Base; 62, 62D: Peripheral wall; 65: Tooth; 70, 70A, 70B: Pressing part; 80, 80A: Rotating body; 81: Base; 82: Peripheral wall; 90, 90A: Receiving part; 100: Axial notch; 105: Radial recess; 107: Wheel support; 109: Non-contact surface.

Claims

1. An electric locking device of an openable / closable body, which is fitted to an opening portion of a fixed body in an openable / closable manner, characterized by comprising: a locking portion provided in one of the openable / closable body and the opening portion of the fixed body; a lever provided in the other of the openable / closable body and the fixed body so as to be slidable and engage / disengage with the locking portion; a force applying unit directly or indirectly applying a force to the lever in a direction in which the lever engages with the locking portion; and an actuator provided in the other of the openable / closable body and the fixed body and causing the lever to slide to disengage from the locking portion, the actuator having a housing fitted to the other of the openable / closable body and the fixed body, a motor provided in the housing, a wheel portion rotating in conjunction with the motor, and a rotating body rotatably supported in the housing and engaged with the lever and causing the lever to engage / disengage with the locking portion by a rotating action, a pressing portion being provided in the wheel portion and engaging with a receiving portion provided in the rotating body or the lever when the wheel portion rotates in a prescribed direction to move the lever in a direction in which the lever disengages from the locking portion against the force applied by the force applying unit, the rotating body being configured such that, in a state in which the force applying unit applies a force to the lever in a direction in which the lever engages with the locking portion, when a force in a direction in which the wheel portion rotates against the force applied by the force applying unit acts on the rotating body via the lever, the rotating body is able to rotate independently of the wheel portion in a direction in which the receiving portion moves away from the pressing portion.

2. The electric locking device of an openable / closable body according to claim 1, wherein the housing has a rotating support portion that rotatably supports the rotating body, the rotating body is prevented from coming off by the rotating support portion, and the wheel portion is prevented from coming off by the rotating body.

3. The electric locking device of an openable / closable body according to claim 1 or 2, wherein the rotating body is rotatably supported in the housing via a support shaft, the housing has a bottom wall from which a cylindrical wall is provided in a concentric manner around an outer periphery of the support shaft, and the wheel portion is rotatably supported in the cylindrical wall.

4. The electric locking device of an openable / closable body according to claim 3, wherein a gear is provided in a drive shaft of the motor, the wheel portion has a base portion and a peripheral wall in which teeth that engage with the gear are formed, a recessed portion in the shape of a step is formed in an inner surface side of an end portion of the peripheral wall on the side of the bottom wall of the housing, and a top end portion of the cylindrical wall is provided in the recessed portion to rotatably support the wheel portion.

5. The electric locking device of an openable / closable body according to any one of claims 1, 2, and 4, wherein a gear is provided in a drive shaft of the motor, the housing has a cylindrical wall, the wheel portion has a peripheral wall in which teeth that engage with the gear are formed, and the peripheral wall of the wheel portion is provided on the inner side or the outer side of the cylindrical wall, the wheel portion being rotatably supported on the inner side or the outer side of the cylindrical wall. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ An axial notch portion is formed in one of the cylindrical wall and the peripheral wall in the axial direction of the cylindrical wall and the peripheral wall, and / or a radial recess portion is formed in the other of the cylindrical wall and the peripheral wall in the radial direction of the cylindrical wall and the peripheral wall, and a non-contact surface is partially provided in which the cylindrical wall and the peripheral wall do not contact each other.

6. The electric lock device of claim 5, wherein A plurality of the axial notch portions are formed in the cylindrical wall, and a plurality of wheel support portions are provided between the axial notch portions, and the prescribed wheel support portion is disposed so as to overlap the gear when the wheel portion is viewed in the radial direction.

7. The electric lock device of claim 5, wherein In the range of rotation of the wheel portion rotated by the motor, The direction of the application force of the pressing portion from the receiving portion by the force applying unit is set so as not to be directed toward a portion where the gear and the tooth are engaged.

8. The electric lock device of any one of claims 1, 2, 4, 6, and 7, wherein A gear is provided on a drive shaft of the motor, The wheel portion and the rotating body are supported to the housing in a manner that they can rotate concentrically, The wheel portion has a base portion and a peripheral wall in which a tooth engaging with the gear is formed, The pressing portion of the wheel portion and the receiving portion of the rotating body are disposed in an area surrounded by the base portion and the peripheral wall of the wheel portion.

9. The electric lock device of any one of claims 1, 2, 4, 6, and 7, wherein The receiving portion is provided on the lever, A lever engaging portion for engaging the lever is protruded from a surface side of the rotating body, The pressing portion is formed in a protrusion shape protruding in the same direction as the lever engaging portion from a surface side of the wheel portion.

10. The electric lock device of claim 3, wherein A gear is provided on a drive shaft of the motor, The housing has a cylindrical wall, The wheel portion has a peripheral wall in which a tooth engaging with the gear is formed, The peripheral wall of the wheel portion is disposed on an inner side or an outer side of the cylindrical wall, and the wheel portion is supported to the inner side or the outer side of the cylindrical wall in a rotatable manner, An axial notch portion is formed in one of the cylindrical wall and the peripheral wall in the axial direction of the cylindrical wall and the peripheral wall, and / or a radial recess portion is formed in the other of the cylindrical wall and the peripheral wall in the radial direction of the cylindrical wall and the peripheral wall, and a non-contact surface is partially provided in which the cylindrical wall and the peripheral wall do not contact each other.

11. The electric lock device of claim 6, wherein In the range of rotation of the wheel portion rotated by the motor, The direction of the application force of the pressing portion from the receiving portion by the force applying unit is set so as not to be directed toward a portion where the gear and the tooth are engaged.

12. The electric lock device of claim 3, wherein A gear is provided on a drive shaft of the motor, The wheel portion and the rotating body are supported to the housing in a manner that they can rotate concentrically, The wheel portion has a base and a peripheral wall formed with teeth to be engaged with the gear, The pressing portion of the wheel portion and the receiving portion of the rotating body are arranged in an area surrounded by the base and the peripheral wall of the wheel portion.

13. The electric locking device of an opening and closing body according to claim 5, wherein A gear is provided to a drive shaft of the motor, The wheel portion and the rotating body are supported to the housing in a manner that they can rotate concentrically, The wheel portion has a base and a peripheral wall formed with teeth to be engaged with the gear, The pressing portion of the wheel portion and the receiving portion of the rotating body are arranged in an area surrounded by the base and the peripheral wall of the wheel portion.

14. The electric locking device of an opening and closing body according to claim 3, wherein The receiving portion is provided to the lever, A lever engaging portion for engaging the lever is protruded from a surface side of the rotating body, The pressing portion is formed in a protrusion shape protruding from a surface side of the wheel portion in the same direction as the lever engaging portion.

15. The electric locking device of an opening and closing body according to claim 5, wherein The receiving portion is provided to the lever, A lever engaging portion for engaging the lever is protruded from a surface side of the rotating body, The pressing portion is formed in a protrusion shape protruding from a surface side of the wheel portion in the same direction as the lever engaging portion.

Images